Google Sheet - Problems Collection
2,627 Medium and Hard problems organized by topic tags, sorted by frequency.
🎯 Today's Challenge
Sunday, November 2, 2025
Practice these 25 randomly selected Medium and Hard problems. New questions refresh daily!
#2 Hard
Maximum Number of Groups Getting Fresh Donuts
Array, Dynamic Programming, Bit Manipulation, Memoization, Bitmask
#3 Hard
Minimum Operations to Make Elements Within K Subarrays Equal
Array, Hash Table, Math, Dynamic Programming, Sliding Window, Heap (Priority Queue)
#6 Medium
Minimum Operations to Make Subarray Elements Equal
Array, Hash Table, Math, Sliding Window, Heap (Priority Queue)
#11 Hard
Frequencies of Shortest Supersequences
Array, String, Bit Manipulation, Graph, Topological Sort, Enumeration
#13 Medium
Partition String Into Minimum Beautiful Substrings
Hash Table, String, Dynamic Programming, Backtracking
#17 Hard
Maximum Good Subtree Score
Array, Dynamic Programming, Bit Manipulation, Tree, Depth-First Search, Bitmask
#22 Medium
Maximize the Profit as the Salesman
Array, Hash Table, Binary Search, Dynamic Programming, Sorting
💡 Tip: These questions refresh at midnight. Bookmark this page to track your daily progress!
Complete LeetCode Problems Collection
Why This Sheet?
- • 2,627 Medium and Hard LeetCode problems
- • Organized by topic tags for focused practice
- • Within each tag, sorted by frequency (highest first)
- • Acceptance rates and difficulty information
- • Covers all major topics and patterns
- • Updated with latest LeetCode problems
Complete Coverage
- • Medium: 1,807 problems
- • Hard: 820 problems
- • Free: 2,174 problems
- • Premium: 453 problems
- • All interview patterns covered
- • Easy questions excluded (focus on Medium+Hard)
How to Use This Sheet
1. Practice by Topic
Focus on specific topics using the tag filter. Each tag group is sorted by frequency, so highest frequency problems appear first.
2. Track Acceptance Rate
Use acceptance rates to gauge problem difficulty and optimize your preparation strategy.
3. Practice Systematically
Work through topics systematically. Within each tag, start with highest frequency problems first.
Overall Progress
0 / 2,627 solved
0% complete
Array (1,620 questions)
Hard
66.1% Accepted
99.4% Freq
Solution
ArrayTwo PointersDynamic Programming+2 more
Hard
38.7% Accepted
95.5% Freq
ArrayTreeGraph+1 more
Medium
46.2% Accepted
94.3% Freq
Solution
ArrayHash TablePrefix Sum
Hard
45.1% Accepted
94.0% Freq
Solution
ArrayBinary SearchDivide and Conquer
Medium
63.2% Accepted
93.9% Freq
Solution
ArrayDepth-First SearchBreadth-First Search+2 more
Medium
48.7% Accepted
92.5% Freq
Solution
ArrayMathBinary Search+2 more
Medium
66.7% Accepted
91.1% Freq
Solution
ArrayMatrixSimulation
Medium
71.7% Accepted
90.9% Freq
Solution
ArrayHash TableString+1 more
Medium
58.9% Accepted
90.8% Freq
Solution
ArrayTwo PointersGreedy
253. Meeting Rooms II
💰 Premium
Medium
52.4% Accepted
90.1% Freq
Solution
ArrayTwo PointersGreedy+3 more
Hard
44.7% Accepted
89.8% Freq
Solution
ArrayBreadth-First SearchMatrix
Hard
49.5% Accepted
89.7% Freq
Solution
ArrayStringSimulation
Hard
63.7% Accepted
89.3% Freq
Solution
ArrayMatrixEnumeration
1152. Analyze User Website Visit Pattern
💰 Premium
Medium
44.2% Accepted
89.0% Freq
Solution
ArrayHash TableString+1 more
Medium
49.3% Accepted
88.9% Freq
Solution
ArrayBinary Search
Medium
68.5% Accepted
88.7% Freq
Solution
ArrayDivide and ConquerSorting+2 more
Medium
52.6% Accepted
88.6% Freq
Solution
ArrayDivide and ConquerDynamic Programming
Medium
38.7% Accepted
88.4% Freq
Solution
ArrayGreedySorting+1 more
Medium
46.6% Accepted
87.8% Freq
Solution
ArrayBinary Search
1762. Buildings With an Ocean View
💰 Premium
Medium
80.9% Accepted
87.8% Freq
Solution
ArrayStackMonotonic Stack
Medium
65.1% Accepted
86.8% Freq
Solution
ArrayHash TableDivide and Conquer+5 more
Hard
55.8% Accepted
86.6% Freq
Solution
ArrayDepth-First SearchBreadth-First Search+2 more
Medium
47.0% Accepted
86.4% Freq
Solution
ArrayHash TableUnion Find
Medium
55.3% Accepted
86.3% Freq
Solution
ArrayMatrixSimulation
Medium
51.4% Accepted
85.6% Freq
Solution
ArrayStringDynamic Programming
Hard
47.0% Accepted
85.4% Freq
Solution
ArrayHash TableBreadth-First Search
Hard
48.1% Accepted
85.4% Freq
Solution
ArrayQueueSliding Window+2 more
Hard
49.0% Accepted
85.4% Freq
Solution
ArrayBinary Search
Medium
44.4% Accepted
85.3% Freq
Solution
ArrayBinary SearchGreedy+3 more
Hard
64.8% Accepted
85.2% Freq
Solution
ArraySegment TreeEnumeration+1 more
Medium
39.0% Accepted
84.6% Freq
Solution
ArrayBinary SearchSegment Tree+1 more
Medium
42.0% Accepted
83.6% Freq
Solution
ArrayStringGreedy+1 more
Medium
74.1% Accepted
83.5% Freq
Solution
ArrayGreedyHeap (Priority Queue)
Medium
54.3% Accepted
83.5% Freq
Solution
ArrayPrefix Sum
Medium
43.6% Accepted
83.4% Freq
Solution
ArrayBinary Search
Hard
57.6% Accepted
83.3% Freq
Solution
ArrayHash TableGreedy+1 more
Medium
55.1% Accepted
83.2% Freq
Solution
ArrayHash TableMath+2 more
Medium
30.0% Accepted
82.9% Freq
ArrayHash TableDynamic Programming+3 more
Medium
65.4% Accepted
82.8% Freq
Solution
ArrayStack
348. Design Tic-Tac-Toe
💰 Premium
Medium
58.7% Accepted
82.6% Freq
Solution
ArrayHash TableDesign+2 more
Medium
57.6% Accepted
82.6% Freq
Solution
ArrayBreadth-First SearchMatrix
Hard
35.6% Accepted
82.3% Freq
ArrayMathCombinatorics
Medium
53.9% Accepted
82.2% Freq
Solution
ArrayGreedySliding Window
Medium
59.2% Accepted
82.0% Freq
Solution
ArrayBinary Search
Medium
56.6% Accepted
82.0% Freq
Solution
ArrayDynamic ProgrammingBit Manipulation
Hard
63.8% Accepted
81.8% Freq
Solution
ArrayBreadth-First SearchHeap (Priority Queue)+1 more
Medium
64.1% Accepted
81.7% Freq
Solution
ArrayMathGeometry+2 more
362. Design Hit Counter
💰 Premium
Medium
69.3% Accepted
81.6% Freq
Solution
ArrayBinary SearchDesign+2 more
Hard
63.7% Accepted
81.5% Freq
Solution
ArrayBinary SearchDynamic Programming+1 more
Hard
69.9% Accepted
81.4% Freq
Solution
ArrayDynamic ProgrammingHeap (Priority Queue)
Medium
66.8% Accepted
81.4% Freq
Solution
ArrayBinary SearchSliding Window+1 more
Medium
47.4% Accepted
81.3% Freq
Solution
ArrayDynamic ProgrammingBreadth-First Search
Hard
48.6% Accepted
80.9% Freq
Solution
ArrayStackMonotonic Stack
Medium
47.7% Accepted
80.8% Freq
Solution
ArrayBinary Search
Medium
40.4% Accepted
80.8% Freq
ArrayHash TableEnumeration
Medium
68.5% Accepted
80.6% Freq
Solution
ArrayTwo PointersSorting
Hard
38.8% Accepted
80.6% Freq
Solution
ArrayHash TableSliding Window+1 more
Medium
43.9% Accepted
80.5% Freq
Solution
ArrayMathTwo Pointers
Hard
54.5% Accepted
80.5% Freq
Solution
ArrayBinary SearchDynamic Programming+1 more
Medium
61.8% Accepted
80.3% Freq
Solution
ArrayHash TableMatrix
Medium
50.9% Accepted
80.3% Freq
Solution
ArrayBinary SearchDynamic Programming+2 more
1570. Dot Product of Two Sparse Vectors
💰 Premium
Medium
89.9% Accepted
80.3% Freq
Solution
ArrayHash TableTwo Pointers+1 more
Medium
55.0% Accepted
80.2% Freq
Solution
ArrayGreedySorting+2 more
Medium
64.0% Accepted
80.2% Freq
Solution
ArrayHash TableSliding Window
Medium
46.2% Accepted
80.1% Freq
Solution
ArrayStringBacktracking+2 more
Medium
40.1% Accepted
80.0% Freq
Solution
ArrayDynamic ProgrammingGreedy
Medium
65.1% Accepted
79.8% Freq
Solution
ArrayStringBinary Search+3 more
Hard
71.9% Accepted
79.6% Freq
ArrayStackMonotonic Stack
Hard
45.1% Accepted
79.6% Freq
Solution
ArrayDynamic ProgrammingBit Manipulation+1 more
Hard
65.3% Accepted
79.6% Freq
Solution
ArrayDynamic ProgrammingMatrix
Medium
61.5% Accepted
79.6% Freq
Solution
ArrayHash TableString
Medium
50.2% Accepted
79.4% Freq
Solution
ArrayGreedy
Medium
38.0% Accepted
79.2% Freq
Solution
ArrayDynamic ProgrammingStack+1 more
465. Optimal Account Balancing
💰 Premium
Hard
50.1% Accepted
78.8% Freq
Solution
ArrayDynamic ProgrammingBacktracking+2 more
Medium
57.3% Accepted
78.8% Freq
Solution
ArrayDynamic Programming
Hard
65.3% Accepted
78.7% Freq
Solution
ArrayHash TableBacktracking+1 more
Medium
63.5% Accepted
78.7% Freq
ArrayHash TableMatrix+1 more
Hard
56.6% Accepted
78.7% Freq
Solution
ArrayDynamic ProgrammingMemoization+1 more
Medium
35.1% Accepted
78.6% Freq
ArrayHash TableSliding Window+1 more
Medium
50.7% Accepted
78.6% Freq
Solution
ArrayBreadth-First SearchMatrix
286. Walls and Gates
💰 Premium
Medium
63.4% Accepted
78.5% Freq
Solution
ArrayBreadth-First SearchMatrix
Hard
59.2% Accepted
78.3% Freq
Solution
ArrayBinary SearchDynamic Programming+2 more
Medium
59.7% Accepted
78.1% Freq
Solution
ArrayHash TableString+5 more
Medium
70.2% Accepted
78.0% Freq
Solution
ArrayDynamic ProgrammingGreedy
Medium
52.7% Accepted
77.8% Freq
Solution
ArrayDynamic Programming
Medium
54.8% Accepted
77.8% Freq
Solution
ArrayDynamic Programming
Hard
55.3% Accepted
77.7% Freq
Solution
ArraySegment TreeLine Sweep+1 more
Hard
48.9% Accepted
77.7% Freq
Solution
ArrayDynamic ProgrammingMemoization
Medium
49.8% Accepted
77.7% Freq
Solution
ArrayHash TableSliding Window
Medium
61.4% Accepted
77.5% Freq
Solution
ArrayBit ManipulationPrefix Sum
Medium
56.4% Accepted
77.5% Freq
Solution
ArrayTwo PointersBinary Search+2 more
Hard
41.8% Accepted
77.2% Freq
Solution
ArrayHash Table
Medium
62.1% Accepted
77.2% Freq
Solution
ArrayBinary SearchBit Manipulation+1 more
269. Alien Dictionary
💰 Premium
Hard
36.9% Accepted
77.2% Freq
Solution
ArrayStringDepth-First Search+3 more
Medium
59.0% Accepted
77.1% Freq
Solution
ArrayDepth-First SearchBreadth-First Search+1 more
Medium
68.2% Accepted
76.9% Freq
Solution
ArrayPrefix Sum
Medium
81.6% Accepted
76.6% Freq
Solution
ArrayBacktrackingBit Manipulation
Medium
67.1% Accepted
76.5% Freq
Solution
ArrayBinary Search
Hard
55.2% Accepted
76.3% Freq
Solution
ArrayDynamic ProgrammingStack+2 more
Medium
49.4% Accepted
76.3% Freq
Solution
Array
Medium
80.6% Accepted
76.3% Freq
Solution
ArrayDynamic ProgrammingMatrix
Medium
73.0% Accepted
76.2% Freq
Solution
ArrayBinary Search
Medium
58.6% Accepted
76.0% Freq
Solution
ArrayBinary SearchDynamic Programming
2021. Brightest Position on Street
💰 Premium
Medium
60.5% Accepted
75.8% Freq
ArraySortingPrefix Sum+1 more
Medium
72.8% Accepted
75.6% Freq
Solution
ArrayTwo PointersLine Sweep
Medium
71.0% Accepted
75.5% Freq
Solution
ArrayDynamic ProgrammingStack+2 more
Medium
46.2% Accepted
75.4% Freq
Solution
ArrayStackSimulation
Medium
44.6% Accepted
75.4% Freq
ArrayHash TableTree+3 more
Medium
65.4% Accepted
75.4% Freq
Solution
ArrayBit ManipulationBrainteaser
Medium
62.2% Accepted
75.3% Freq
Solution
ArrayHash TableGreedy+3 more
Medium
89.6% Accepted
75.2% Freq
Solution
ArrayBacktrackingBit Manipulation+1 more
Medium
31.5% Accepted
75.1% Freq
ArrayHash TableString+1 more
Medium
42.1% Accepted
74.9% Freq
Solution
ArrayDynamic ProgrammingGreedy
Hard
48.9% Accepted
74.9% Freq
Solution
ArrayHash TableSorting+2 more
Medium
78.6% Accepted
74.8% Freq
Solution
ArrayStringDepth-First Search+1 more
Medium
57.0% Accepted
74.8% Freq
Solution
ArrayQueueSliding Window+3 more
Medium
60.4% Accepted
74.8% Freq
Solution
ArrayHash TableString+4 more
311. Sparse Matrix Multiplication
💰 Premium
Medium
69.1% Accepted
74.7% Freq
Solution
ArrayHash TableMatrix
Medium
55.5% Accepted
74.7% Freq
Solution
ArrayGraphHeap (Priority Queue)+2 more
Medium
67.8% Accepted
74.2% Freq
Solution
ArrayStackMonotonic Stack
Hard
50.7% Accepted
74.1% Freq
Solution
ArrayDynamic ProgrammingGreedy
Hard
29.3% Accepted
74.0% Freq
ArrayHash TableBinary Search+1 more
Medium
79.2% Accepted
73.8% Freq
Solution
ArrayTwo PointersMatrix
Hard
37.5% Accepted
73.7% Freq
Solution
ArrayBinary SearchDynamic Programming+1 more
Medium
68.4% Accepted
73.7% Freq
Solution
ArrayMathDivide and Conquer+4 more
Medium
48.8% Accepted
73.7% Freq
Solution
ArrayHash TableString+3 more
Medium
35.6% Accepted
73.6% Freq
Solution
ArrayDynamic Programming
Medium
67.4% Accepted
73.4% Freq
Solution
ArrayStackMonotonic Stack
Hard
43.1% Accepted
73.4% Freq
ArraySimulationInteractive
Medium
78.0% Accepted
73.2% Freq
Solution
ArrayMatrix
Medium
50.5% Accepted
73.1% Freq
Solution
ArrayGreedyHeap (Priority Queue)
Hard
61.0% Accepted
72.9% Freq
Solution
ArrayBinary SearchSliding Window+1 more
Medium
53.6% Accepted
72.8% Freq
Solution
ArrayHash TableString+2 more
Medium
49.1% Accepted
72.6% Freq
Solution
ArrayTwo PointersBinary Search+3 more
353. Design Snake Game
💰 Premium
Medium
39.9% Accepted
72.6% Freq
Solution
ArrayHash TableDesign+2 more
Medium
49.5% Accepted
72.2% Freq
Solution
ArrayDynamic ProgrammingMatrix
Medium
56.7% Accepted
72.1% Freq
Solution
ArrayHash TableString+1 more
Medium
35.4% Accepted
71.9% Freq
Solution
ArrayMathEnumeration+1 more
Hard
67.0% Accepted
71.8% Freq
Solution
ArrayHash TableSliding Window+1 more
Medium
63.5% Accepted
71.7% Freq
Solution
ArrayTwo PointersBinary Search+1 more
Hard
76.4% Accepted
71.7% Freq
Solution
ArrayBit ManipulationTree+1 more
Medium
48.0% Accepted
71.4% Freq
Solution
ArrayBreadth-First SearchMatrix
Hard
37.8% Accepted
71.3% Freq
Solution
ArrayStringBacktracking+2 more
305. Number of Islands II
💰 Premium
Hard
40.3% Accepted
71.3% Freq
Solution
ArrayHash TableUnion Find
Medium
78.8% Accepted
71.2% Freq
Solution
ArrayGreedySorting
Medium
77.7% Accepted
71.1% Freq
Solution
ArrayDivide and ConquerTree+1 more
Medium
68.1% Accepted
71.0% Freq
Solution
ArrayGraphHeap (Priority Queue)+2 more
Medium
55.8% Accepted
70.9% Freq
Solution
ArrayHash TableMath+1 more
Hard
38.6% Accepted
70.9% Freq
Solution
ArrayDynamic ProgrammingMatrix
Hard
55.9% Accepted
70.8% Freq
Solution
ArrayDynamic ProgrammingDepth-First Search+5 more
Medium
61.7% Accepted
70.8% Freq
Solution
ArrayHash TableDesign
Medium
50.1% Accepted
70.8% Freq
Solution
ArrayHash TablePrefix Sum
Medium
70.2% Accepted
70.7% Freq
Solution
ArrayHash TableDesign+1 more
Medium
36.7% Accepted
70.7% Freq
Solution
ArrayHash TableBinary Search+1 more
Medium
44.4% Accepted
70.7% Freq
ArrayHash TableString+3 more
Medium
51.4% Accepted
70.6% Freq
Solution
ArrayDynamic ProgrammingBacktracking
Medium
47.5% Accepted
70.6% Freq
Solution
ArrayTwo PointersSorting
Hard
54.5% Accepted
70.6% Freq
Solution
ArrayHash TableString+4 more
249. Group Shifted Strings
💰 Premium
Medium
67.6% Accepted
70.3% Freq
Solution
ArrayHash TableString
Medium
52.8% Accepted
70.3% Freq
Solution
ArrayHash TableString+3 more
Medium
67.3% Accepted
70.3% Freq
Solution
ArrayDynamic ProgrammingMatrix
Medium
55.9% Accepted
70.3% Freq
Solution
ArrayBinary Search
Medium
60.9% Accepted
70.2% Freq
Solution
ArrayTwo PointersGreedy+1 more
Medium
56.1% Accepted
70.0% Freq
Solution
ArrayDivide and ConquerSorting+5 more
Medium
60.1% Accepted
70.0% Freq
Solution
ArrayDepth-First SearchBreadth-First Search+1 more
Medium
67.2% Accepted
69.9% Freq
Solution
ArrayDynamic Programming
Medium
53.2% Accepted
69.8% Freq
Solution
ArrayLinked ListDesign+1 more
1060. Missing Element in Sorted Array
💰 Premium
Medium
59.5% Accepted
69.8% Freq
Solution
ArrayBinary Search
Medium
56.1% Accepted
69.7% Freq
Solution
ArrayTwo PointersBinary Search+2 more
Hard
33.1% Accepted
69.5% Freq
Solution
ArrayBinary SearchDivide and Conquer+4 more
Medium
32.7% Accepted
69.4% Freq
ArrayGreedy
Medium
56.2% Accepted
69.3% Freq
Solution
ArrayBinary SearchDivide and Conquer+1 more
Medium
53.0% Accepted
69.3% Freq
Solution
ArrayBinary SearchMatrix
Hard
22.5% Accepted
69.3% Freq
ArrayTwo PointersBinary Search+4 more
1229. Meeting Scheduler
💰 Premium
Medium
55.2% Accepted
69.2% Freq
Solution
ArrayTwo PointersSorting
Hard
78.0% Accepted
69.0% Freq
Solution
ArrayHash TableString+2 more
Medium
22.3% Accepted
68.9% Freq
ArrayHash TableBreadth-First Search+1 more
Medium
74.7% Accepted
68.5% Freq
Solution
ArrayHash TableString+2 more
Medium
84.7% Accepted
68.4% Freq
Solution
ArraySortingMatrix
Medium
60.4% Accepted
68.4% Freq
Solution
ArrayGreedyEnumeration
Hard
46.8% Accepted
68.3% Freq
ArrayHash TablePrefix Sum
Medium
67.8% Accepted
68.3% Freq
Solution
ArrayHash TableGreedy
Medium
35.5% Accepted
68.3% Freq
ArrayBinary SearchOrdered Set
Hard
17.7% Accepted
68.3% Freq
ArrayBinary SearchBinary Indexed Tree+1 more
Medium
73.5% Accepted
68.2% Freq
Solution
ArrayDepth-First SearchBreadth-First Search+2 more
Hard
26.4% Accepted
68.0% Freq
Solution
ArrayMathDynamic Programming+2 more
Medium
63.6% Accepted
68.0% Freq
Solution
ArrayStringDepth-First Search+4 more
Medium
65.9% Accepted
68.0% Freq
Solution
ArrayHash TableSliding Window
Hard
49.6% Accepted
67.8% Freq
Solution
ArrayStringDynamic Programming+3 more
Hard
49.2% Accepted
67.8% Freq
ArrayDivide and Conquer
Hard
36.5% Accepted
67.8% Freq
ArrayHash TableMath+5 more
Medium
56.1% Accepted
67.8% Freq
Solution
ArraySortingHeap (Priority Queue)+2 more
Medium
66.1% Accepted
67.7% Freq
Solution
ArrayBit Manipulation
Medium
81.8% Accepted
67.7% Freq
Solution
ArrayGreedySorting
Medium
67.6% Accepted
67.5% Freq
Solution
ArrayHash TableString
Medium
47.0% Accepted
67.5% Freq
Solution
ArraySortingHeap (Priority Queue)
Medium
70.2% Accepted
67.4% Freq
Solution
ArrayMath
Medium
53.4% Accepted
67.3% Freq
Solution
ArrayBinary SearchSliding Window+1 more
Hard
69.6% Accepted
67.3% Freq
Solution
ArrayDynamic ProgrammingGreedy+3 more
Medium
48.9% Accepted
67.3% Freq
Solution
ArrayDynamic Programming
Medium
48.8% Accepted
67.1% Freq
Solution
ArrayDynamic Programming
Medium
29.2% Accepted
67.1% Freq
ArrayTwo PointersBinary Search+1 more
Medium
72.0% Accepted
67.1% Freq
Solution
ArrayMatrixSimulation
Hard
40.2% Accepted
67.1% Freq
Solution
ArrayDynamic ProgrammingMatrix
759. Employee Free Time
💰 Premium
Hard
72.6% Accepted
67.0% Freq
Solution
ArrayLine SweepSorting+1 more
Medium
39.4% Accepted
67.0% Freq
Solution
ArrayHash TableBinary Search+3 more
Medium
60.9% Accepted
66.9% Freq
Solution
ArrayHash TableString+1 more
Medium
58.1% Accepted
66.8% Freq
Solution
ArrayHash TableMath+1 more
Medium
55.8% Accepted
66.7% Freq
Solution
ArrayTwo PointersStack+1 more
Medium
39.0% Accepted
66.7% Freq
Solution
ArrayHash TableBinary Search+2 more
Hard
42.8% Accepted
66.6% Freq
ArrayDynamic Programming
Medium
70.9% Accepted
66.4% Freq
Solution
ArrayDynamic ProgrammingSliding Window
Medium
40.8% Accepted
66.4% Freq
ArrayTwo PointersBinary Search+1 more
244. Shortest Word Distance II
💰 Premium
Medium
62.4% Accepted
66.3% Freq
Solution
ArrayHash TableTwo Pointers+2 more
Medium
55.8% Accepted
66.3% Freq
Solution
ArrayHash TablePrefix Sum
Hard
44.5% Accepted
66.1% Freq
Solution
ArrayDivide and ConquerBinary Indexed Tree+5 more
Hard
67.3% Accepted
66.1% Freq
Solution
ArrayBinary SearchDepth-First Search+4 more
Medium
74.9% Accepted
66.0% Freq
Solution
ArrayHash TableDepth-First Search
Medium
49.2% Accepted
65.9% Freq
ArrayHash TableDesign+1 more
Hard
56.1% Accepted
65.9% Freq
ArrayMathDynamic Programming+1 more
Medium
46.0% Accepted
65.8% Freq
ArrayHash TableString+1 more
Medium
51.4% Accepted
65.7% Freq
Solution
ArrayTwo PointersBinary Search+2 more
Medium
68.4% Accepted
65.6% Freq
ArrayDepth-First SearchBreadth-First Search+1 more
Medium
45.8% Accepted
65.6% Freq
ArrayHash TableBinary Search+2 more
Hard
45.9% Accepted
65.6% Freq
Solution
ArrayBreadth-First SearchMatrix
Medium
50.6% Accepted
65.5% Freq
Solution
ArrayHash TableString+4 more
Hard
22.1% Accepted
65.5% Freq
ArrayStackSegment Tree+4 more
Medium
60.0% Accepted
65.4% Freq
Solution
ArrayHash TableString+4 more
Hard
52.4% Accepted
65.4% Freq
Solution
ArrayDynamic Programming
Hard
60.4% Accepted
65.3% Freq
Solution
ArrayMathBit Manipulation
Medium
60.3% Accepted
65.3% Freq
Solution
ArrayBacktrackingBit Manipulation
Hard
62.4% Accepted
65.2% Freq
Solution
ArrayDynamic Programming
Hard
53.2% Accepted
65.2% Freq
Solution
ArrayMathGreedy
Hard
37.8% Accepted
65.1% Freq
ArrayMathGeometry+2 more
Hard
42.7% Accepted
64.8% Freq
Solution
ArrayHash TableDepth-First Search+3 more
631. Design Excel Sum Formula
💰 Premium
Hard
40.5% Accepted
64.8% Freq
Solution
ArrayHash TableString+4 more
Medium
32.1% Accepted
64.6% Freq
ArrayMathTwo Pointers+1 more
Medium
44.2% Accepted
64.6% Freq
Solution
ArrayDynamic Programming
Medium
56.5% Accepted
64.5% Freq
Solution
ArrayHash TableString+2 more
Medium
50.6% Accepted
64.3% Freq
ArrayDynamic Programming
Medium
64.1% Accepted
64.3% Freq
Solution
ArrayTwo PointersBinary Search
Medium
49.4% Accepted
64.1% Freq
Solution
ArrayTwo PointersBinary Search+1 more
Medium
67.8% Accepted
64.1% Freq
ArrayRolling HashString Matching+1 more
Hard
57.5% Accepted
64.1% Freq
Solution
ArrayMathStack+1 more
Medium
62.5% Accepted
64.0% Freq
Solution
ArrayHash TableTwo Pointers+3 more
Medium
84.5% Accepted
64.0% Freq
Solution
ArrayTwo PointersSimulation
Medium
62.5% Accepted
64.0% Freq
Solution
ArrayMathString+1 more
Hard
44.6% Accepted
63.9% Freq
ArrayDynamic ProgrammingBacktracking+2 more
1429. First Unique Number
💰 Premium
Medium
56.5% Accepted
63.5% Freq
Solution
ArrayHash TableDesign+2 more
Medium
64.9% Accepted
63.5% Freq
Solution
ArrayBinary SearchDynamic Programming+1 more
Medium
64.9% Accepted
63.4% Freq
Solution
ArrayBinary Search
Medium
55.3% Accepted
63.4% Freq
Solution
ArrayHash TableSorting+1 more
Medium
50.2% Accepted
63.3% Freq
Solution
ArrayBinary SearchSliding Window+1 more
Hard
32.3% Accepted
63.1% Freq
ArrayMathGeometry+2 more
Medium
29.9% Accepted
62.8% Freq
ArrayMathBinary Search+3 more
Hard
62.5% Accepted
62.8% Freq
Solution
ArrayBinary SearchDepth-First Search+3 more
Medium
63.7% Accepted
62.8% Freq
Solution
ArrayTwo Pointers
Hard
69.9% Accepted
62.8% Freq
Solution
ArrayHash TableGreedy+3 more
Medium
67.4% Accepted
62.7% Freq
Solution
ArrayHash TableSliding Window+1 more
Medium
56.0% Accepted
62.6% Freq
Solution
ArrayMathStack
Medium
45.0% Accepted
62.6% Freq
Solution
ArrayHash TableTwo Pointers+4 more
1778. Shortest Path in a Hidden Grid
💰 Premium
Medium
44.3% Accepted
62.4% Freq
ArrayDepth-First SearchBreadth-First Search+2 more
Medium
30.3% Accepted
62.4% Freq
ArrayDynamic Programming
616. Add Bold Tag in String
💰 Premium
Medium
51.2% Accepted
62.3% Freq
Solution
ArrayHash TableString+2 more
Medium
34.3% Accepted
62.2% Freq
Solution
ArrayBinary SearchStack+2 more
Medium
44.0% Accepted
62.2% Freq
Solution
ArrayDepth-First SearchBreadth-First Search+2 more
Medium
56.0% Accepted
62.1% Freq
Solution
ArrayHash TableMath+1 more
Medium
56.2% Accepted
62.0% Freq
Solution
ArrayDynamic ProgrammingGreedy+1 more
1274. Number of Ships in a Rectangle
💰 Premium
Hard
68.8% Accepted
61.9% Freq
Solution
ArrayDivide and ConquerInteractive
Medium
48.5% Accepted
61.8% Freq
Solution
ArrayBinary SearchBreadth-First Search+3 more
Medium
38.3% Accepted
61.7% Freq
Solution
ArrayDynamic ProgrammingBacktracking+3 more
Medium
37.0% Accepted
61.7% Freq
ArrayDynamic ProgrammingQueue+3 more
Medium
41.9% Accepted
61.6% Freq
ArrayGreedy
Hard
47.7% Accepted
61.5% Freq
Solution
ArrayGreedySorting+1 more
Medium
37.2% Accepted
61.3% Freq
ArrayHash TableCounting
Hard
70.8% Accepted
61.1% Freq
Solution
ArrayBreadth-First SearchGraph+3 more
Medium
58.2% Accepted
61.1% Freq
Solution
ArraySortingHeap (Priority Queue)
Medium
64.0% Accepted
61.1% Freq
Solution
ArrayBinary SearchSorting+2 more
Hard
36.1% Accepted
61.1% Freq
Solution
ArrayHash TableMath+2 more
490. The Maze
💰 Premium
Medium
59.9% Accepted
61.1% Freq
Solution
ArrayDepth-First SearchBreadth-First Search+1 more
Medium
49.2% Accepted
61.0% Freq
Solution
ArrayTwo PointersBinary Search+1 more
Medium
77.0% Accepted
61.0% Freq
ArrayDepth-First SearchMatrix
Medium
49.1% Accepted
61.0% Freq
Solution
ArrayMathDynamic Programming+1 more
Hard
62.5% Accepted
60.9% Freq
Solution
ArrayDynamic ProgrammingSorting
Hard
48.7% Accepted
60.8% Freq
Solution
ArrayDynamic Programming
Medium
25.9% Accepted
60.8% Freq
ArrayHash TableBit Manipulation+2 more
Medium
71.6% Accepted
60.8% Freq
Solution
ArrayBinary SearchSorting
Hard
59.7% Accepted
60.6% Freq
Solution
ArrayDynamic Programming
Hard
82.6% Accepted
60.6% Freq
Solution
ArrayBacktrackingBit Manipulation+1 more
Hard
59.6% Accepted
60.5% Freq
Solution
ArrayDynamic ProgrammingSliding Window+1 more
Medium
53.3% Accepted
60.3% Freq
Solution
ArrayHash TableBit Manipulation+1 more
Hard
53.5% Accepted
60.3% Freq
Solution
ArrayDepth-First SearchBreadth-First Search+2 more
Medium
55.2% Accepted
60.3% Freq
Solution
ArrayHash TableMath+2 more
Hard
45.0% Accepted
60.3% Freq
ArrayDynamic ProgrammingPrefix Sum
Medium
43.2% Accepted
60.3% Freq
ArrayHash TableGreedy+1 more
Medium
61.0% Accepted
60.2% Freq
Solution
ArrayDynamic Programming
Medium
82.1% Accepted
60.1% Freq
Solution
ArrayMathRecursion+2 more
271. Encode and Decode Strings
💰 Premium
Medium
50.5% Accepted
60.1% Freq
Solution
ArrayStringDesign
Medium
60.3% Accepted
60.0% Freq
Solution
ArrayStackMonotonic Stack
Hard
54.2% Accepted
60.0% Freq
Solution
ArrayBit ManipulationBreadth-First Search+1 more
Medium
84.5% Accepted
60.0% Freq
Solution
ArrayMatrixSimulation
Medium
64.1% Accepted
60.0% Freq
Solution
ArrayStackGreedy+2 more
Medium
56.7% Accepted
59.8% Freq
Solution
ArraySliding WindowPrefix Sum
Hard
29.7% Accepted
59.8% Freq
Solution
ArrayHash TableMath+1 more
Hard
56.8% Accepted
59.7% Freq
Solution
ArrayStringDynamic Programming
Medium
60.9% Accepted
59.5% Freq
Solution
ArrayPrefix Sum
Medium
55.0% Accepted
59.5% Freq
Solution
ArrayBinary SearchMatrix+1 more
Medium
68.9% Accepted
59.4% Freq
ArrayTwo PointersGreedy
Medium
60.9% Accepted
59.4% Freq
Solution
ArrayDynamic ProgrammingMatrix
Medium
49.7% Accepted
59.3% Freq
Solution
ArrayHash TableBinary Search+1 more
Hard
64.4% Accepted
59.3% Freq
Solution
ArrayMathGeometry+2 more
Medium
78.0% Accepted
59.2% Freq
Solution
ArrayLinked ListStack+3 more
Medium
67.8% Accepted
59.2% Freq
Solution
ArrayHash TableDivide and Conquer+2 more
Medium
44.6% Accepted
59.1% Freq
ArrayHash TableDepth-First Search+5 more
Hard
40.8% Accepted
59.1% Freq
Solution
ArrayBinary SearchInteractive
Medium
31.1% Accepted
59.1% Freq
Solution
ArrayHash TableMath+1 more
Medium
62.6% Accepted
59.0% Freq
Solution
ArrayDepth-First SearchGraph+1 more
Medium
50.0% Accepted
59.0% Freq
Solution
ArrayBinary Search
Medium
58.4% Accepted
58.8% Freq
Solution
ArrayBacktracking
Hard
40.4% Accepted
58.8% Freq
ArraySortingHeap (Priority Queue)
Medium
62.6% Accepted
58.6% Freq
Solution
ArrayDynamic Programming
Medium
55.9% Accepted
58.6% Freq
ArrayHash TableMath+2 more
Medium
32.0% Accepted
58.6% Freq
ArrayString
Medium
39.0% Accepted
58.6% Freq
Solution
ArrayHash TableMath+1 more
Medium
82.0% Accepted
58.6% Freq
Solution
ArrayMathSimulation+1 more
Medium
74.2% Accepted
58.5% Freq
Solution
ArrayMatrixSimulation
247. Strobogrammatic Number II
💰 Premium
Medium
53.4% Accepted
58.5% Freq
Solution
ArrayStringRecursion
Medium
63.9% Accepted
58.4% Freq
Solution
ArraySliding Window
Medium
62.7% Accepted
58.4% Freq
Solution
ArraySimulationPrefix Sum
Hard
32.9% Accepted
58.2% Freq
ArrayRolling HashString Matching+1 more
Medium
39.4% Accepted
58.1% Freq
Solution
ArrayBinary Search
Medium
61.3% Accepted
58.0% Freq
Solution
ArrayMathSorting
Medium
36.3% Accepted
58.0% Freq
ArrayDivide and ConquerGreedy+2 more
Medium
53.3% Accepted
57.9% Freq
Solution
ArrayBinary Search
Hard
66.8% Accepted
57.9% Freq
Solution
ArrayDynamic ProgrammingGraph+1 more
Hard
52.9% Accepted
57.8% Freq
ArrayMathTree+2 more
Hard
40.9% Accepted
57.6% Freq
Solution
ArrayDynamic ProgrammingGreedy+1 more
Hard
45.0% Accepted
57.6% Freq
Solution
ArrayHeap (Priority Queue)Simulation+1 more
Medium
62.4% Accepted
57.4% Freq
Solution
ArrayBacktrackingSorting
Medium
45.8% Accepted
57.4% Freq
Solution
ArrayStringPrefix Sum
Hard
69.3% Accepted
57.3% Freq
Solution
ArrayQueueSliding Window+1 more
Medium
48.5% Accepted
57.3% Freq
Solution
ArrayHash TableMath+1 more
Hard
33.6% Accepted
57.2% Freq
ArrayTwo PointersStack+2 more
Hard
68.2% Accepted
57.1% Freq
Solution
ArrayBreadth-First SearchGraph
Hard
60.3% Accepted
57.1% Freq
ArrayGreedySorting
1885. Count Pairs in Two Arrays
💰 Premium
Medium
60.3% Accepted
57.1% Freq
Solution
ArrayTwo PointersBinary Search+1 more
Hard
15.5% Accepted
57.1% Freq
ArrayMathSegment Tree+1 more
Medium
53.1% Accepted
57.1% Freq
ArrayGreedyHeap (Priority Queue)
Medium
65.6% Accepted
56.8% Freq
Solution
ArraySliding Window
Medium
53.9% Accepted
56.8% Freq
ArrayBinary SearchMatrix
Medium
45.7% Accepted
56.8% Freq
ArrayDynamic Programming
Medium
39.3% Accepted
56.6% Freq
Solution
ArrayBinary Search
Medium
41.4% Accepted
56.5% Freq
Solution
ArrayTwo PointersDynamic Programming+1 more
Medium
67.4% Accepted
56.5% Freq
ArrayBinary SearchGreedy+1 more
Medium
52.7% Accepted
56.4% Freq
Solution
ArrayDynamic ProgrammingBreadth-First Search+1 more
Medium
56.0% Accepted
56.4% Freq
Solution
ArrayPrefix Sum
Medium
47.0% Accepted
56.2% Freq
ArrayStringBinary Search+1 more
Medium
57.2% Accepted
56.2% Freq
Array
Medium
39.9% Accepted
56.1% Freq
Solution
ArrayBinary SearchSliding Window+2 more
Medium
57.0% Accepted
56.1% Freq
Solution
ArrayHash TableDynamic Programming
Hard
50.8% Accepted
56.1% Freq
Solution
ArrayHash TableMath+4 more
2291. Maximum Profit From Trading Stocks
💰 Premium
Medium
47.3% Accepted
56.1% Freq
ArrayDynamic Programming
Medium
37.0% Accepted
56.1% Freq
ArrayHash TableBinary Search+1 more
Hard
68.3% Accepted
56.1% Freq
Solution
ArrayBit ManipulationUnion Find+1 more
Medium
56.0% Accepted
56.0% Freq
Solution
ArrayMathDynamic Programming+2 more
Medium
89.8% Accepted
56.0% Freq
Solution
ArrayTwo PointersSimulation
Medium
30.6% Accepted
56.0% Freq
ArrayDynamic Programming
Medium
57.2% Accepted
56.0% Freq
Solution
ArrayDesignMatrix+1 more
Medium
58.8% Accepted
55.8% Freq
Solution
ArrayBinary Search
Medium
67.4% Accepted
55.7% Freq
Solution
ArrayDynamic Programming
Medium
68.9% Accepted
55.5% Freq
Solution
ArrayHash TableTwo Pointers+1 more
Hard
41.0% Accepted
55.4% Freq
Solution
ArrayGreedySorting+1 more
Medium
39.8% Accepted
55.4% Freq
ArrayBinary Search
Hard
62.2% Accepted
55.3% Freq
Solution
ArrayBit ManipulationQueue+2 more
Medium
30.6% Accepted
55.2% Freq
ArrayTwo Pointers
Medium
48.6% Accepted
55.1% Freq
Solution
ArrayDivide and ConquerDynamic Programming+2 more
Medium
45.2% Accepted
55.0% Freq
Solution
ArrayHash TableTwo Pointers+2 more
Medium
75.1% Accepted
55.0% Freq
Solution
ArrayTwo PointersGreedy+1 more
Hard
46.2% Accepted
55.0% Freq
Solution
ArrayHash TableBreadth-First Search
Medium
37.7% Accepted
54.8% Freq
Solution
ArrayTwo PointersStack+3 more
Medium
74.3% Accepted
54.7% Freq
Solution
ArrayHash TableMath+2 more
Medium
52.0% Accepted
54.6% Freq
Solution
ArrayDynamic ProgrammingBreadth-First Search+1 more
Medium
83.4% Accepted
54.6% Freq
Solution
ArrayQueueSorting+1 more
Medium
52.8% Accepted
54.6% Freq
ArrayHeap (Priority Queue)Simulation
Hard
43.1% Accepted
54.5% Freq
Solution
ArrayBinary SearchDivide and Conquer+4 more
Medium
58.3% Accepted
54.4% Freq
Solution
ArrayHash TableSimulation
Medium
60.6% Accepted
54.4% Freq
ArrayTwo PointersGreedy+1 more
Medium
39.1% Accepted
54.4% Freq
Solution
ArrayGreedy
Hard
60.4% Accepted
54.4% Freq
ArrayBacktrackingGraph
Medium
58.0% Accepted
54.4% Freq
Solution
ArrayQueueSliding Window+3 more
Hard
34.8% Accepted
54.4% Freq
ArrayMathString+1 more
Hard
40.8% Accepted
54.4% Freq
Solution
ArrayBinary SearchDivide and Conquer+4 more
Hard
33.0% Accepted
54.4% Freq
ArrayBinary SearchSorting+1 more
Medium
25.8% Accepted
54.4% Freq
ArrayMathDynamic Programming+2 more
Hard
24.1% Accepted
54.4% Freq
ArrayTwo PointersBinary Search+5 more
251. Flatten 2D Vector
💰 Premium
Medium
50.3% Accepted
54.3% Freq
Solution
ArrayTwo PointersDesign+1 more
Medium
52.0% Accepted
54.2% Freq
Solution
ArrayGreedySorting
Medium
42.7% Accepted
54.2% Freq
Solution
ArrayHash TableSliding Window
Medium
49.5% Accepted
54.0% Freq
Solution
ArrayTwo PointersBinary Search+1 more
Medium
52.2% Accepted
53.9% Freq
Solution
ArrayTwo PointersString+1 more
1580. Put Boxes Into the Warehouse II
💰 Premium
Medium
65.8% Accepted
53.9% Freq
Solution
ArrayGreedySorting
Medium
45.6% Accepted
53.9% Freq
ArrayMathGeometry
Hard
29.7% Accepted
53.9% Freq
ArrayDynamic ProgrammingPrefix Sum
Medium
50.6% Accepted
53.9% Freq
ArrayHash TableSorting
Medium
59.5% Accepted
53.9% Freq
ArrayTwo Pointers
Hard
36.8% Accepted
53.9% Freq
ArrayBinary SearchBreadth-First Search+1 more
Hard
36.3% Accepted
53.8% Freq
Solution
ArrayHeap (Priority Queue)
Hard
17.5% Accepted
53.8% Freq
ArrayBinary SearchDynamic Programming+4 more
Hard
50.7% Accepted
53.8% Freq
ArrayMathGreedy+1 more
Medium
68.1% Accepted
53.7% Freq
Solution
ArrayGreedySorting
Medium
62.2% Accepted
53.7% Freq
ArrayHash TableCounting
Hard
53.9% Accepted
53.7% Freq
Solution
ArrayStringTree+3 more
Medium
64.7% Accepted
53.6% Freq
Solution
ArrayDynamic ProgrammingBacktracking+2 more
Hard
43.1% Accepted
53.5% Freq
ArrayDynamic Programming
Hard
24.3% Accepted
53.5% Freq
ArrayBinary SearchDynamic Programming+2 more
Medium
56.7% Accepted
53.4% Freq
Solution
ArrayHash TableTwo Pointers+1 more
Medium
41.1% Accepted
53.4% Freq
Solution
ArrayHeap (Priority Queue)
Medium
58.2% Accepted
53.3% Freq
Solution
ArrayMath
Medium
77.6% Accepted
53.3% Freq
Solution
ArrayHash TableDepth-First Search+3 more
Medium
41.8% Accepted
53.2% Freq
ArrayGraphHeap (Priority Queue)+1 more
Medium
58.6% Accepted
53.2% Freq
ArrayDynamic Programming
Medium
69.8% Accepted
53.1% Freq
Solution
ArrayUnion FindGraph+1 more
Medium
56.8% Accepted
53.0% Freq
Solution
ArraySimulation
Hard
32.4% Accepted
53.0% Freq
Solution
ArrayBinary SearchQueue+4 more
Hard
40.6% Accepted
52.9% Freq
ArrayDynamic ProgrammingGraph
Medium
25.5% Accepted
52.8% Freq
ArrayHash TableStack+2 more
Hard
44.8% Accepted
52.7% Freq
Solution
ArrayStringDynamic Programming+2 more
Medium
51.3% Accepted
52.7% Freq
ArrayDynamic ProgrammingGreedy
Medium
35.0% Accepted
52.7% Freq
ArrayHash TableGreedy+1 more
Medium
20.2% Accepted
52.7% Freq
ArrayMathQueue+3 more
Medium
51.1% Accepted
52.7% Freq
ArrayDynamic ProgrammingGreedy+1 more
Medium
83.8% Accepted
52.5% Freq
Solution
ArrayStackTree+3 more
Medium
51.2% Accepted
52.4% Freq
Solution
ArrayBinary SearchDynamic Programming+3 more
Hard
60.3% Accepted
52.3% Freq
ArrayGraphTopological Sort+1 more
Hard
23.1% Accepted
52.3% Freq
ArrayMathEnumeration+1 more
Medium
64.8% Accepted
52.3% Freq
Solution
ArrayDynamic Programming
325. Maximum Size Subarray Sum Equals k
💰 Premium
Medium
50.7% Accepted
52.3% Freq
Solution
ArrayHash TablePrefix Sum
Medium
40.6% Accepted
52.2% Freq
ArrayDynamic ProgrammingBit Manipulation+1 more
1257. Smallest Common Region
💰 Premium
Medium
68.2% Accepted
52.1% Freq
Solution
ArrayHash TableString+3 more
Hard
61.1% Accepted
52.1% Freq
Solution
ArrayDynamic Programming
Hard
72.2% Accepted
52.1% Freq
Solution
ArrayGreedySorting+1 more
Medium
49.4% Accepted
52.1% Freq
ArrayHash TableString+1 more
Hard
20.6% Accepted
52.1% Freq
ArrayBinary SearchSegment Tree+1 more
Hard
15.2% Accepted
52.1% Freq
ArrayHash TableTree+2 more
Medium
54.9% Accepted
52.1% Freq
ArrayHash TableBinary Search+2 more
Medium
59.8% Accepted
52.0% Freq
ArrayHash TableString+2 more
Medium
65.7% Accepted
51.8% Freq
Solution
ArrayUnion FindSorting
Hard
24.1% Accepted
51.7% Freq
Solution
ArraySliding WindowSorting+2 more
Medium
72.4% Accepted
51.6% Freq
Solution
ArrayHash TableTree+2 more
1564. Put Boxes Into the Warehouse I
💰 Premium
Medium
67.2% Accepted
51.6% Freq
Solution
ArrayGreedySorting
Hard
30.3% Accepted
51.6% Freq
ArrayMathNumber Theory
Medium
58.2% Accepted
51.6% Freq
Solution
ArrayBinary SearchDesign+2 more
Medium
41.3% Accepted
51.5% Freq
Solution
ArrayDynamic ProgrammingBacktracking+2 more
Medium
63.6% Accepted
51.3% Freq
Solution
ArrayHash TableGreedy+2 more
Hard
57.5% Accepted
51.2% Freq
Solution
ArrayHash TableBinary Search+3 more
Medium
76.6% Accepted
51.2% Freq
Solution
ArrayHash Table
Medium
43.7% Accepted
51.1% Freq
Solution
ArrayDynamic ProgrammingMatrix
Medium
90.1% Accepted
51.1% Freq
Solution
ArrayStringPrefix Sum
Hard
48.6% Accepted
50.9% Freq
Solution
ArrayDynamic Programming
Medium
80.2% Accepted
50.9% Freq
Solution
ArrayGreedyBit Manipulation+1 more
Hard
40.5% Accepted
50.9% Freq
ArrayTwo PointersDynamic Programming+1 more
Hard
40.1% Accepted
50.9% Freq
ArrayDynamic ProgrammingBacktracking+2 more
Hard
61.2% Accepted
50.9% Freq
ArrayDynamic ProgrammingSorting
Medium
75.9% Accepted
50.9% Freq
Solution
ArrayHash TableSliding Window
Medium
69.8% Accepted
50.9% Freq
ArrayGreedySorting
Medium
25.1% Accepted
50.9% Freq
ArrayTwo PointersMatrix
Hard
17.9% Accepted
50.9% Freq
ArrayStringBit Manipulation+3 more
Medium
70.4% Accepted
50.9% Freq
ArrayDivide and ConquerMatrix
Medium
61.3% Accepted
50.8% Freq
Solution
ArrayDynamic Programming
1167. Minimum Cost to Connect Sticks
💰 Premium
Medium
71.5% Accepted
50.7% Freq
Solution
ArrayGreedyHeap (Priority Queue)
Medium
56.9% Accepted
50.6% Freq
Solution
ArrayStringSorting
Medium
50.9% Accepted
50.6% Freq
Solution
ArrayGreedySorting
Hard
53.5% Accepted
50.5% Freq
ArrayDynamic ProgrammingGreedy+1 more
Hard
54.5% Accepted
50.5% Freq
Solution
ArrayStackGreedy+2 more
Medium
54.2% Accepted
50.4% Freq
Solution
ArrayStackSorting+1 more
Medium
43.8% Accepted
50.3% Freq
ArrayHash TableTwo Pointers+2 more
Medium
62.3% Accepted
50.3% Freq
Solution
ArrayBinary SearchDepth-First Search+4 more
Medium
71.5% Accepted
50.3% Freq
Solution
ArrayTwo PointersGreedy+1 more
Hard
52.9% Accepted
50.3% Freq
ArrayDynamic ProgrammingBit Manipulation+2 more
Medium
40.7% Accepted
50.3% Freq
Solution
ArrayHash TableGreedy+1 more
Hard
37.6% Accepted
50.3% Freq
ArrayHash TableString+2 more
Medium
87.0% Accepted
50.2% Freq
Solution
ArrayHash TableBit Manipulation
Medium
64.8% Accepted
50.1% Freq
Solution
ArrayBit ManipulationSliding Window
Medium
71.3% Accepted
50.0% Freq
Solution
ArrayDynamic ProgrammingGreedy
Medium
76.9% Accepted
49.9% Freq
Solution
ArrayHash TableString
Hard
41.6% Accepted
49.8% Freq
Solution
ArrayHash TableMath+2 more
Hard
48.6% Accepted
49.8% Freq
ArrayHash TableBinary Search+1 more
Medium
45.0% Accepted
49.8% Freq
ArrayHash TableString+2 more
Hard
30.4% Accepted
49.8% Freq
ArrayHash TableDynamic Programming
Hard
32.8% Accepted
49.7% Freq
ArrayDynamic ProgrammingTree+1 more
Medium
73.1% Accepted
49.7% Freq
Solution
ArraySimulation
Medium
60.9% Accepted
49.5% Freq
Solution
ArrayGreedySorting
Medium
49.6% Accepted
49.5% Freq
Solution
ArrayMathDepth-First Search+3 more
Medium
40.3% Accepted
49.4% Freq
Solution
ArrayHash TableBinary Search+2 more
Hard
54.0% Accepted
49.1% Freq
Solution
ArrayBinary SearchSliding Window+2 more
Medium
88.2% Accepted
49.1% Freq
Solution
ArrayBit Manipulation
Medium
38.8% Accepted
49.0% Freq
Solution
ArrayMathBinary Search+4 more
Hard
51.5% Accepted
49.0% Freq
Solution
ArrayStringDesign+2 more
Medium
41.4% Accepted
49.0% Freq
ArrayDynamic Programming
Hard
54.8% Accepted
48.8% Freq
Solution
ArrayBinary SearchDynamic Programming+1 more
Medium
39.3% Accepted
48.8% Freq
ArrayMathBrainteaser+1 more
Medium
59.3% Accepted
48.7% Freq
Solution
ArrayMathDesign+1 more
Hard
54.9% Accepted
48.6% Freq
Solution
ArrayTreeDepth-First Search+2 more
360. Sort Transformed Array
💰 Premium
Medium
57.5% Accepted
48.6% Freq
Solution
ArrayMathTwo Pointers+1 more
1230. Toss Strange Coins
💰 Premium
Medium
58.1% Accepted
48.6% Freq
Solution
ArrayMathDynamic Programming+1 more
Hard
62.3% Accepted
48.6% Freq
Solution
ArrayBinary SearchSliding Window+1 more
Hard
37.7% Accepted
48.5% Freq
ArrayBinary SearchDivide and Conquer+4 more
Medium
54.4% Accepted
48.4% Freq
Solution
ArrayTwo Pointers
Medium
51.5% Accepted
48.3% Freq
Solution
ArrayHash TableMath+1 more
Medium
53.4% Accepted
48.3% Freq
Solution
ArrayHash TableCounting
Hard
62.8% Accepted
48.1% Freq
Solution
ArrayHash TableDesign+2 more
Hard
49.8% Accepted
48.1% Freq
Solution
ArrayBinary SearchGreedy+1 more
Hard
65.8% Accepted
48.1% Freq
Solution
ArrayBinary SearchDivide and Conquer+4 more
Medium
41.5% Accepted
48.0% Freq
ArrayGreedyGraph+2 more
Hard
42.8% Accepted
47.9% Freq
ArrayHash TableString+1 more
Medium
37.5% Accepted
47.9% Freq
ArrayMathGreedy+2 more
Medium
36.4% Accepted
47.9% Freq
ArrayMathDynamic Programming
Medium
67.8% Accepted
47.8% Freq
Solution
ArrayStringPrefix Sum
Medium
50.6% Accepted
47.7% Freq
Solution
ArraySortingBucket Sort+1 more
Medium
80.0% Accepted
47.7% Freq
Solution
ArrayStackDesign
Medium
36.3% Accepted
47.6% Freq
ArrayDynamic ProgrammingMatrix
Medium
35.2% Accepted
47.6% Freq
ArrayBinary SearchGreedy+1 more
Medium
46.0% Accepted
47.5% Freq
Solution
ArrayHash TableTwo Pointers+2 more
Hard
56.1% Accepted
47.4% Freq
Solution
ArrayStackSorting+1 more
Hard
36.6% Accepted
47.3% Freq
Solution
ArrayHash TableString+1 more
Medium
72.2% Accepted
47.3% Freq
Solution
ArrayMathDynamic Programming+1 more
Hard
44.3% Accepted
47.3% Freq
Solution
ArrayBinary Search
Medium
46.4% Accepted
47.1% Freq
ArrayTwo PointersString+1 more
Medium
54.5% Accepted
47.0% Freq
Solution
ArrayDynamic ProgrammingPrefix Sum
Medium
66.8% Accepted
47.0% Freq
Solution
ArrayBinary Search
Hard
28.8% Accepted
47.0% Freq
ArrayDynamic Programming
Medium
74.4% Accepted
46.9% Freq
Solution
ArrayBinary Indexed TreeSegment Tree+1 more
Medium
35.0% Accepted
46.7% Freq
ArrayBit ManipulationRecursion+1 more
Medium
41.3% Accepted
46.6% Freq
Solution
ArrayGreedySorting
Medium
36.6% Accepted
46.6% Freq
ArrayHash TableBinary Search+2 more
Hard
44.6% Accepted
46.6% Freq
ArrayDynamic ProgrammingBit Manipulation+3 more
Medium
53.2% Accepted
46.6% Freq
ArrayHash TableSliding Window
Medium
54.4% Accepted
46.6% Freq
ArrayHash TableSimulation
Hard
53.2% Accepted
46.5% Freq
ArrayBinary SearchLine Sweep+2 more
Medium
57.5% Accepted
46.5% Freq
Solution
ArrayHash TableDynamic Programming
Hard
46.1% Accepted
46.4% Freq
Solution
ArrayTwo PointersBinary Search+1 more
Medium
77.0% Accepted
46.3% Freq
Solution
ArrayHash TableString+1 more
Medium
42.0% Accepted
46.3% Freq
ArrayGreedyBit Manipulation+1 more
Hard
52.2% Accepted
46.2% Freq
Solution
ArrayHash TableBinary Search+1 more
Hard
50.3% Accepted
46.2% Freq
Solution
ArrayTwo PointersBinary Search+4 more
Medium
68.2% Accepted
46.1% Freq
Solution
ArrayBacktrackingMatrix
Hard
54.7% Accepted
46.1% Freq
Solution
ArrayDynamic Programming
Medium
52.8% Accepted
46.1% Freq
Solution
ArrayTwo PointersBinary Search+1 more
Medium
47.5% Accepted
46.0% Freq
Solution
ArrayBinary Search
Hard
55.8% Accepted
45.9% Freq
Solution
ArrayHash TableString+3 more
Medium
73.5% Accepted
45.9% Freq
Solution
ArrayDepth-First SearchBreadth-First Search+3 more
Medium
34.7% Accepted
45.8% Freq
Solution
ArrayMatrix
Medium
67.5% Accepted
45.8% Freq
Solution
ArrayMathDivide and Conquer
Medium
51.5% Accepted
45.8% Freq
ArrayGreedy
Medium
48.8% Accepted
45.5% Freq
ArrayGreedy
Hard
49.2% Accepted
45.5% Freq
ArrayBreadth-First SearchHeap (Priority Queue)+1 more
Medium
53.9% Accepted
45.5% Freq
Solution
ArrayTwo PointersGreedy+1 more
Medium
46.9% Accepted
45.5% Freq
ArrayHash TableString+1 more
1102. Path With Maximum Minimum Value
💰 Premium
Medium
54.3% Accepted
45.4% Freq
Solution
ArrayBinary SearchDepth-First Search+4 more
Medium
45.8% Accepted
45.2% Freq
Solution
ArrayBit Manipulation
Medium
72.6% Accepted
45.1% Freq
Solution
ArrayBacktracking
Hard
60.7% Accepted
45.0% Freq
Solution
ArrayBinary SearchDepth-First Search+2 more
Medium
62.3% Accepted
45.0% Freq
Solution
ArrayMathDynamic Programming
Hard
51.8% Accepted
45.0% Freq
Solution
ArrayDynamic Programming
Medium
51.7% Accepted
45.0% Freq
ArrayDynamic ProgrammingMatrix
Medium
82.4% Accepted
45.0% Freq
ArrayMathStack+3 more
Medium
68.8% Accepted
45.0% Freq
ArraySortingMatrix
Hard
29.9% Accepted
45.0% Freq
ArrayBinary SearchDynamic Programming+4 more
Medium
46.4% Accepted
45.0% Freq
Solution
ArrayBinary SearchDynamic Programming+2 more
Medium
62.8% Accepted
44.9% Freq
Solution
ArrayMathDesign+2 more
Medium
46.2% Accepted
44.9% Freq
Solution
ArrayHash TableCounting
Medium
50.4% Accepted
44.9% Freq
ArrayMatrixEnumeration
Hard
46.6% Accepted
44.9% Freq
Solution
ArrayBinary SearchGreedy+2 more
Medium
54.9% Accepted
44.9% Freq
Solution
ArrayGreedySorting
Hard
16.6% Accepted
44.9% Freq
ArrayBinary SearchGreedy
Medium
54.8% Accepted
44.7% Freq
Solution
ArrayDynamic Programming
Medium
48.0% Accepted
44.7% Freq
Solution
ArrayBreadth-First SearchMatrix
Medium
51.1% Accepted
44.7% Freq
ArrayHash TableString+1 more
Medium
49.1% Accepted
44.7% Freq
ArrayMathNumber Theory
Medium
47.7% Accepted
44.7% Freq
ArrayDynamic ProgrammingMatrix
Medium
64.5% Accepted
44.5% Freq
ArrayTwo PointersString+2 more
Medium
48.2% Accepted
44.5% Freq
ArrayHash TableGreedy+3 more
Hard
73.4% Accepted
44.4% Freq
Solution
ArrayDynamic ProgrammingBacktracking+3 more
Medium
10.9% Accepted
44.3% Freq
ArrayHash TableString+2 more
Medium
56.8% Accepted
44.2% Freq
Solution
ArrayPrefix Sum
Medium
66.9% Accepted
44.2% Freq
Solution
ArrayDepth-First SearchBreadth-First Search+2 more
Medium
59.7% Accepted
44.1% Freq
Solution
ArrayBinary Search
Medium
43.6% Accepted
44.1% Freq
Solution
ArrayBinary SearchPrefix Sum
Medium
54.4% Accepted
43.7% Freq
Solution
ArrayGreedySorting+1 more
Hard
50.9% Accepted
43.6% Freq
Solution
ArrayMathBit Manipulation+1 more
Hard
45.7% Accepted
43.6% Freq
ArrayHash TableBit Manipulation+2 more
Medium
75.2% Accepted
43.6% Freq
ArrayHash TableString+1 more
Medium
53.7% Accepted
43.6% Freq
ArrayHash TableMath+1 more
Hard
37.7% Accepted
43.6% Freq
ArrayBinary SearchSliding Window+2 more
Hard
37.3% Accepted
43.6% Freq
ArrayDynamic Programming
Medium
51.2% Accepted
43.6% Freq
ArrayMatrixPrefix Sum
Medium
60.4% Accepted
43.6% Freq
ArrayStringDepth-First Search+2 more
Hard
21.0% Accepted
43.6% Freq
ArrayDynamic ProgrammingSegment Tree
Hard
48.8% Accepted
43.6% Freq
ArrayTreeDepth-First Search
Hard
21.0% Accepted
43.6% Freq
ArrayDynamic ProgrammingTree+1 more
Medium
28.3% Accepted
43.6% Freq
ArrayHash TableMath+3 more
Medium
64.8% Accepted
43.6% Freq
Solution
ArrayDynamic ProgrammingSliding Window
Hard
72.2% Accepted
43.6% Freq
Solution
ArrayDynamic ProgrammingMatrix
Medium
42.7% Accepted
43.5% Freq
ArrayStackMonotonic Stack
Medium
62.8% Accepted
43.5% Freq
Solution
ArrayBinary SearchGreedy
308. Range Sum Query 2D - Mutable
💰 Premium
Medium
45.1% Accepted
43.4% Freq
Solution
ArrayDesignBinary Indexed Tree+2 more
737. Sentence Similarity II
💰 Premium
Medium
50.9% Accepted
43.3% Freq
Solution
ArrayHash TableString+3 more
Medium
42.1% Accepted
43.3% Freq
ArrayGreedySorting+1 more
Medium
36.3% Accepted
43.2% Freq
ArrayHash TableTwo Pointers
Medium
54.7% Accepted
43.1% Freq
ArrayBinary SearchSorting
Medium
38.2% Accepted
43.1% Freq
ArrayHash TableString
1730. Shortest Path to Get Food
💰 Premium
Medium
57.0% Accepted
43.1% Freq
Solution
ArrayBreadth-First SearchMatrix
Hard
47.9% Accepted
43.1% Freq
ArrayMathUnion Find+2 more
Medium
20.9% Accepted
43.1% Freq
ArrayMathDynamic Programming+2 more
Medium
54.3% Accepted
43.0% Freq
Solution
ArrayHash TableMath+1 more
Medium
62.1% Accepted
42.9% Freq
Solution
ArrayHash TableBacktracking+1 more
Medium
37.5% Accepted
42.7% Freq
Solution
ArrayMathGreedy+1 more
Medium
52.3% Accepted
42.6% Freq
ArrayDynamic ProgrammingGreedy
Medium
66.5% Accepted
42.6% Freq
Solution
ArrayDepth-First SearchBreadth-First Search
Medium
51.5% Accepted
42.5% Freq
Solution
ArrayStackTree+4 more
Medium
73.0% Accepted
42.5% Freq
Solution
ArrayBinary SearchInteractive
Medium
53.1% Accepted
42.5% Freq
ArrayMatrixPrefix Sum
Hard
18.4% Accepted
42.5% Freq
ArrayDynamic ProgrammingMatrix
Medium
71.1% Accepted
42.5% Freq
ArraySliding Window
505. The Maze II
💰 Premium
Medium
54.5% Accepted
42.4% Freq
Solution
ArrayDepth-First SearchBreadth-First Search+4 more
Medium
40.9% Accepted
42.4% Freq
ArrayHash TableString+2 more
Medium
45.8% Accepted
42.4% Freq
ArrayBinary SearchSorting
Medium
68.1% Accepted
42.4% Freq
Solution
ArrayMathPrefix Sum
Medium
46.5% Accepted
42.4% Freq
ArrayHash TableString+2 more
Hard
34.4% Accepted
42.4% Freq
ArrayDynamic ProgrammingBinary Indexed Tree+2 more
Hard
27.2% Accepted
42.4% Freq
ArrayDynamic ProgrammingPrefix Sum
Medium
63.1% Accepted
42.4% Freq
ArrayGreedySorting
Hard
14.9% Accepted
42.4% Freq
ArrayDivide and ConquerDynamic Programming+1 more
Medium
31.3% Accepted
42.4% Freq
ArrayDynamic ProgrammingBacktracking+3 more
Medium
68.3% Accepted
42.4% Freq
Solution
ArraySorting
Hard
20.4% Accepted
42.4% Freq
ArrayHash TableBinary Search+3 more
Medium
55.9% Accepted
42.3% Freq
Solution
ArrayMathDynamic Programming+1 more
Hard
41.7% Accepted
42.0% Freq
Solution
ArrayUnion FindGraph+3 more
Medium
72.9% Accepted
42.0% Freq
Solution
ArrayBacktracking
Medium
40.7% Accepted
42.0% Freq
ArrayDynamic ProgrammingTree+1 more
Medium
77.2% Accepted
42.0% Freq
Solution
ArrayDynamic Programming
Medium
65.1% Accepted
41.9% Freq
Solution
ArrayGreedyHeap (Priority Queue)
Medium
68.7% Accepted
41.8% Freq
Solution
ArraySimulation
Medium
56.3% Accepted
41.7% Freq
ArrayDepth-First SearchBreadth-First Search+2 more
Medium
71.2% Accepted
41.6% Freq
Solution
ArrayDepth-First SearchBreadth-First Search+2 more
Medium
46.6% Accepted
41.4% Freq
Solution
ArrayTwo PointersString
Medium
60.5% Accepted
41.4% Freq
Solution
ArrayGreedySorting+1 more
Medium
57.6% Accepted
41.4% Freq
Solution
ArrayHash TableGreedy+1 more
499. The Maze III
💰 Premium
Hard
51.0% Accepted
41.3% Freq
Solution
ArrayStringDepth-First Search+5 more
Medium
86.3% Accepted
41.3% Freq
Solution
ArrayGreedyMatrix
Medium
56.5% Accepted
41.3% Freq
Solution
ArrayGreedy
Medium
68.7% Accepted
41.3% Freq
ArrayHash TableString
Medium
51.9% Accepted
41.3% Freq
ArrayHash TableDesign+1 more
Hard
51.7% Accepted
41.3% Freq
ArrayBacktrackingBit Manipulation+1 more
Hard
44.6% Accepted
41.3% Freq
ArrayTreeGraph+1 more
Hard
33.2% Accepted
41.3% Freq
ArrayMathBit Manipulation+3 more
Medium
38.7% Accepted
41.3% Freq
ArrayHash TableTwo Pointers+2 more
Hard
21.2% Accepted
41.3% Freq
ArrayMathBinary Indexed Tree+3 more
Medium
29.5% Accepted
41.3% Freq
ArrayHash TableMath+1 more
Medium
23.9% Accepted
41.3% Freq
ArrayBinary SearchGreedy+3 more
Hard
59.4% Accepted
41.1% Freq
Solution
ArrayTwo PointersBreadth-First Search+4 more
Medium
56.5% Accepted
41.1% Freq
Solution
Array
Hard
27.0% Accepted
41.1% Freq
ArrayDynamic ProgrammingBit Manipulation+4 more
Hard
62.9% Accepted
41.0% Freq
ArrayMathNumber Theory
Medium
70.5% Accepted
40.9% Freq
Solution
ArrayBit Manipulation
Medium
50.8% Accepted
40.8% Freq
Solution
ArrayDynamic ProgrammingBinary Indexed Tree+1 more
Hard
50.4% Accepted
40.8% Freq
Solution
ArrayHash TableString+5 more
Medium
63.6% Accepted
40.8% Freq
Solution
ArrayTwo PointersGreedy+3 more
Medium
36.6% Accepted
40.6% Freq
ArrayGraphHeap (Priority Queue)+1 more
Medium
39.8% Accepted
40.6% Freq
ArraySimulation
Medium
67.3% Accepted
40.6% Freq
Solution
ArrayHash TableDivide and Conquer+2 more
Medium
52.1% Accepted
40.6% Freq
Solution
ArrayDynamic ProgrammingBacktracking+3 more
Medium
60.2% Accepted
40.5% Freq
Solution
ArrayDynamic Programming
Hard
40.9% Accepted
40.3% Freq
Solution
ArrayDynamic ProgrammingStack+3 more
Hard
43.2% Accepted
40.3% Freq
ArrayMathGreedy
Hard
49.1% Accepted
40.3% Freq
ArrayDynamic ProgrammingBit Manipulation+2 more
Medium
75.2% Accepted
40.3% Freq
Solution
ArrayGreedySorting+1 more
Hard
28.8% Accepted
40.3% Freq
Solution
ArrayStackMonotonic Stack+1 more
Hard
43.2% Accepted
40.3% Freq
ArrayHash TableDynamic Programming+1 more
Medium
37.7% Accepted
40.3% Freq
ArrayHash TableBinary Search+2 more
Medium
45.6% Accepted
40.3% Freq
ArrayHash TableGreedy
Medium
41.2% Accepted
40.3% Freq
ArrayDynamic ProgrammingMatrix
Hard
14.8% Accepted
40.3% Freq
ArrayDynamic ProgrammingBit Manipulation+2 more
Medium
62.8% Accepted
40.3% Freq
ArrayHash TableGreedy+2 more
Hard
59.7% Accepted
40.2% Freq
ArrayHash TableBit Manipulation
Medium
30.4% Accepted
40.2% Freq
ArrayDynamic ProgrammingBreadth-First Search
Hard
46.3% Accepted
40.2% Freq
ArrayBinary SearchDivide and Conquer+4 more
Medium
51.8% Accepted
40.2% Freq
ArrayMathNumber Theory
Medium
60.2% Accepted
40.2% Freq
Solution
ArrayUnion FindSorting
Hard
74.6% Accepted
40.1% Freq
Solution
ArrayHash TableMatrix+1 more
Medium
44.3% Accepted
39.8% Freq
Solution
ArrayStackGreedy+2 more
Medium
54.4% Accepted
39.8% Freq
Solution
ArrayHash TableDynamic Programming
Hard
40.8% Accepted
39.8% Freq
ArrayHash TableMath+4 more
Hard
71.2% Accepted
39.8% Freq
Solution
ArrayGreedySorting
Medium
44.8% Accepted
39.8% Freq
ArrayDynamic ProgrammingBreadth-First Search+1 more
Hard
45.0% Accepted
39.4% Freq
Solution
ArrayBinary SearchMatrix+2 more
Medium
86.7% Accepted
39.4% Freq
ArrayMathGeometry
Hard
39.5% Accepted
39.4% Freq
ArrayGraphSorting+1 more
Medium
26.3% Accepted
39.4% Freq
ArrayHash Table
Hard
47.2% Accepted
39.4% Freq
ArrayMathDynamic Programming+2 more
Medium
40.8% Accepted
39.4% Freq
ArrayMathNumber Theory
Hard
23.0% Accepted
39.4% Freq
ArrayMathStack+1 more
Hard
41.0% Accepted
39.4% Freq
ArrayTreeDepth-First Search+2 more
Medium
49.4% Accepted
39.3% Freq
Solution
ArrayStringDynamic Programming
Medium
55.9% Accepted
39.2% Freq
ArrayGreedy
Medium
68.5% Accepted
39.0% Freq
Solution
ArrayHash TableString+1 more
Medium
33.8% Accepted
39.0% Freq
ArrayTwo PointersBinary Search+1 more
Medium
60.8% Accepted
39.0% Freq
Solution
ArrayStringBit Manipulation
Medium
78.0% Accepted
39.0% Freq
Solution
ArrayHash TableDivide and Conquer+2 more
Medium
51.3% Accepted
38.9% Freq
Solution
ArrayStringUnion Find+1 more
Medium
59.9% Accepted
38.8% Freq
Solution
ArrayHash TableTree+4 more
Medium
57.2% Accepted
38.7% Freq
Solution
ArrayHash TableString+2 more
Hard
53.9% Accepted
38.6% Freq
Solution
ArrayGreedyHeap (Priority Queue)+1 more
Hard
44.3% Accepted
38.5% Freq
ArrayMathDynamic Programming+1 more
Hard
42.2% Accepted
38.5% Freq
ArrayGreedySliding Window+1 more
Hard
30.3% Accepted
38.5% Freq
ArrayMathBinary Search+1 more
Hard
40.8% Accepted
38.5% Freq
ArrayHash TableTwo Pointers+2 more
Hard
32.0% Accepted
38.5% Freq
ArrayBinary SearchStack+1 more
Hard
30.0% Accepted
38.5% Freq
ArrayHash TableMath+2 more
Medium
31.7% Accepted
38.5% Freq
ArrayMathBit Manipulation+1 more
Medium
45.7% Accepted
38.4% Freq
ArrayMathDynamic Programming
Hard
56.9% Accepted
38.3% Freq
ArrayBit ManipulationTrie
Medium
58.9% Accepted
38.3% Freq
ArrayDynamic Programming
Hard
50.5% Accepted
38.3% Freq
ArrayDynamic Programming
Medium
53.7% Accepted
38.3% Freq
ArrayBinary SearchMatrix+1 more
Hard
56.5% Accepted
38.3% Freq
Solution
ArrayBreadth-First SearchGraph+3 more
Medium
36.6% Accepted
38.3% Freq
ArrayBit Manipulation
Medium
41.7% Accepted
37.9% Freq
ArrayHeap (Priority Queue)
Medium
57.5% Accepted
37.9% Freq
Solution
ArrayHash TableLinked List
Medium
34.2% Accepted
37.9% Freq
ArrayDynamic ProgrammingBacktracking+2 more
Medium
80.8% Accepted
37.9% Freq
Solution
ArrayHash TableBit Manipulation+1 more
Medium
67.4% Accepted
37.9% Freq
Solution
ArrayTreeDepth-First Search+2 more
Medium
53.4% Accepted
37.8% Freq
Solution
ArrayStringPrefix Sum
Hard
45.8% Accepted
37.8% Freq
Solution
ArrayGreedySorting
Medium
78.2% Accepted
37.8% Freq
Solution
ArrayBit ManipulationPrefix Sum
Hard
70.3% Accepted
37.8% Freq
Solution
ArrayBreadth-First SearchGraph+3 more
Hard
47.2% Accepted
37.8% Freq
ArrayDynamic ProgrammingTree+2 more
Hard
24.4% Accepted
37.8% Freq
ArrayDynamic ProgrammingBit Manipulation+1 more
Hard
18.6% Accepted
37.8% Freq
ArrayHash TableString+3 more
Medium
44.8% Accepted
37.6% Freq
ArrayMathDynamic Programming
Medium
59.0% Accepted
37.6% Freq
Solution
ArrayDesignCounting+1 more
Medium
45.9% Accepted
37.4% Freq
Solution
ArraySliding Window
Medium
61.3% Accepted
37.4% Freq
Solution
ArrayDynamic ProgrammingGreedy+1 more
Hard
57.8% Accepted
37.3% Freq
Solution
ArrayBinary SearchDynamic Programming+1 more
Medium
66.5% Accepted
37.3% Freq
Solution
ArrayBit ManipulationSorting
Medium
87.5% Accepted
37.2% Freq
Solution
ArrayHash TableGreedy
Medium
49.1% Accepted
37.0% Freq
Solution
ArrayHash Table
Medium
42.7% Accepted
37.0% Freq
ArrayMathProbability and Statistics
Medium
54.4% Accepted
37.0% Freq
ArrayHash TableGreedy+1 more
Medium
65.7% Accepted
37.0% Freq
Solution
ArrayGreedySorting
Medium
54.1% Accepted
37.0% Freq
ArrayHash TableString+2 more
Hard
62.0% Accepted
37.0% Freq
Solution
ArrayMathDynamic Programming+3 more
Medium
51.6% Accepted
37.0% Freq
ArrayDepth-First SearchBreadth-First Search+2 more
Medium
67.0% Accepted
37.0% Freq
ArrayStringSimulation
Medium
75.0% Accepted
37.0% Freq
ArrayHash TableString+1 more
Medium
59.7% Accepted
36.9% Freq
ArrayDepth-First SearchBreadth-First Search+2 more
Hard
63.4% Accepted
36.7% Freq
Solution
ArrayDynamic ProgrammingMatrix
Medium
76.1% Accepted
36.7% Freq
ArrayMatrixPrefix Sum
Hard
13.2% Accepted
36.6% Freq
ArrayHash TableMath+1 more
Medium
70.1% Accepted
36.5% Freq
Solution
ArrayDynamic ProgrammingBinary Indexed Tree+1 more
Hard
53.7% Accepted
36.4% Freq
Solution
ArrayBinary Search
Hard
44.0% Accepted
36.4% Freq
Solution
ArrayMathString+2 more
Medium
45.8% Accepted
36.4% Freq
ArrayBreadth-First SearchSorting+2 more
Hard
38.0% Accepted
36.4% Freq
ArrayHash TableString+1 more
Hard
63.0% Accepted
36.4% Freq
ArrayGreedyUnion Find+1 more
Medium
45.6% Accepted
36.3% Freq
Solution
ArrayGreedy
Medium
46.2% Accepted
36.1% Freq
Solution
ArrayDynamic ProgrammingQueue+2 more
Hard
34.3% Accepted
36.1% Freq
ArrayHash TableMath+3 more
Medium
68.9% Accepted
35.8% Freq
Solution
ArrayHash TableTree+2 more
Medium
60.7% Accepted
35.7% Freq
Solution
ArrayHash TableString+1 more
Medium
53.0% Accepted
35.7% Freq
Solution
ArrayHash TableDynamic Programming+1 more
Medium
48.4% Accepted
35.7% Freq
ArrayGreedyMatrix
Hard
34.9% Accepted
35.7% Freq
ArrayMathGeometry+1 more
Hard
39.9% Accepted
35.7% Freq
ArrayBinary Search
Medium
57.7% Accepted
35.7% Freq
ArrayDynamic ProgrammingGreedy+2 more
Medium
56.8% Accepted
35.7% Freq
ArrayHash TableSorting+1 more
Hard
63.2% Accepted
35.6% Freq
Solution
ArrayMathDynamic Programming+1 more
Hard
42.5% Accepted
35.5% Freq
ArrayTwo PointersDynamic Programming+3 more
Hard
81.6% Accepted
35.4% Freq
Solution
ArrayHash TableString+5 more
Medium
35.2% Accepted
35.3% Freq
ArrayHash TableSliding Window
Hard
40.9% Accepted
35.3% Freq
ArrayBinary SearchStack+3 more
Hard
61.5% Accepted
35.1% Freq
Solution
ArrayDynamic ProgrammingMemoization+2 more
Medium
80.9% Accepted
35.1% Freq
ArrayHash TableMath+1 more
Medium
25.1% Accepted
35.0% Freq
ArrayDynamic ProgrammingBacktracking+4 more
Medium
81.6% Accepted
35.0% Freq
Solution
ArrayTwo PointersGreedy+1 more
Hard
36.0% Accepted
34.6% Freq
ArrayHash TableDepth-First Search+1 more
Hard
72.3% Accepted
34.6% Freq
Solution
ArrayHash TableBit Manipulation+2 more
Hard
49.1% Accepted
34.6% Freq
ArrayUnion FindPrefix Sum+1 more
Medium
34.4% Accepted
34.6% Freq
ArrayDynamic Programming
Medium
32.9% Accepted
34.6% Freq
ArrayGreedy
Medium
54.2% Accepted
34.4% Freq
Solution
ArrayMathBit Manipulation
Medium
48.5% Accepted
34.3% Freq
Solution
ArrayDynamic ProgrammingSliding Window
Medium
60.6% Accepted
34.3% Freq
ArrayDynamic ProgrammingSliding Window
Medium
33.8% Accepted
34.2% Freq
ArrayBit Manipulation
Medium
63.1% Accepted
34.0% Freq
Solution
ArrayTwo PointersBinary Search+2 more
Medium
67.5% Accepted
34.0% Freq
Solution
ArrayMathSorting+1 more
Medium
51.0% Accepted
33.8% Freq
ArrayDynamic ProgrammingPrefix Sum
Medium
83.1% Accepted
33.8% Freq
Solution
ArraySortingMatrix
Medium
50.5% Accepted
33.6% Freq
Solution
ArrayDynamic ProgrammingSorting
Medium
52.0% Accepted
33.6% Freq
ArrayTreeDepth-First Search+1 more
Medium
72.9% Accepted
33.5% Freq
ArrayMathDynamic Programming+2 more
Medium
72.4% Accepted
33.5% Freq
ArrayMatrixSimulation
Medium
36.9% Accepted
33.5% Freq
ArrayGreedySorting
Medium
71.4% Accepted
33.3% Freq
Solution
ArrayDynamic Programming
Medium
31.6% Accepted
33.0% Freq
ArrayMatrixPrefix Sum
Hard
36.0% Accepted
33.0% Freq
ArrayDynamic ProgrammingBit Manipulation+3 more
Hard
64.3% Accepted
32.9% Freq
Solution
ArrayTwo PointersBinary Search+2 more
Medium
62.5% Accepted
32.8% Freq
Solution
ArrayBinary SearchDesign+3 more
Medium
84.7% Accepted
32.7% Freq
Solution
ArrayMathGreedy+2 more
Medium
50.9% Accepted
32.7% Freq
Solution
ArrayHash TableMath+4 more
Medium
58.2% Accepted
32.7% Freq
Solution
ArrayBinary SearchSliding Window+1 more
Medium
39.4% Accepted
32.7% Freq
Solution
ArrayHash TablePrefix Sum
Medium
80.7% Accepted
32.6% Freq
ArrayHash Table
Hard
41.8% Accepted
32.6% Freq
Solution
ArrayMathUnion Find+1 more
Medium
63.1% Accepted
32.1% Freq
Solution
ArrayHash TableGreedy+1 more
Medium
17.0% Accepted
32.1% Freq
ArrayTwo PointersDynamic Programming+1 more
Medium
36.5% Accepted
31.9% Freq
ArrayHash TableStack+2 more
Medium
69.3% Accepted
31.9% Freq
Solution
ArrayHash TableGreedy+2 more
Medium
43.4% Accepted
31.8% Freq
Solution
ArrayTwo PointersHeap (Priority Queue)+1 more
Medium
54.0% Accepted
31.8% Freq
Solution
ArrayHash TableString+2 more
Medium
52.3% Accepted
31.7% Freq
Solution
ArrayStackGreedy+1 more
Medium
48.5% Accepted
31.7% Freq
Solution
ArrayTwo PointersString
Medium
31.8% Accepted
31.7% Freq
ArrayBinary SearchSorting+1 more
Medium
62.1% Accepted
31.7% Freq
Solution
ArrayBinary SearchSorting
Medium
42.8% Accepted
31.7% Freq
ArrayHash TableMath+1 more
Medium
30.4% Accepted
31.7% Freq
ArrayDynamic Programming
Medium
51.8% Accepted
31.5% Freq
Solution
ArrayHash TableGreedy+1 more
Hard
63.6% Accepted
31.4% Freq
Solution
ArrayGreedySorting+1 more
Medium
60.8% Accepted
31.3% Freq
Solution
ArrayBinary SearchDynamic Programming+2 more
Medium
20.3% Accepted
31.3% Freq
ArrayDynamic Programming
Medium
69.7% Accepted
31.2% Freq
Solution
ArrayDynamic ProgrammingBacktracking+2 more
Medium
72.5% Accepted
31.1% Freq
Solution
ArrayHash TableSorting+1 more
Medium
73.0% Accepted
31.0% Freq
ArrayHash Table
Medium
42.1% Accepted
30.9% Freq
Solution
ArrayDivide and ConquerDesign+2 more
Medium
70.1% Accepted
30.9% Freq
Solution
ArrayHash TableCounting
Hard
61.2% Accepted
30.9% Freq
ArrayGreedySorting
Medium
68.8% Accepted
30.5% Freq
Solution
ArrayTwo PointersBinary Search+2 more
Medium
69.9% Accepted
30.5% Freq
Solution
ArrayStackSimulation
Hard
64.5% Accepted
30.5% Freq
Solution
ArrayBacktrackingBit Manipulation+1 more
Medium
75.5% Accepted
30.5% Freq
Solution
ArrayDepth-First SearchBreadth-First Search+1 more
Medium
53.1% Accepted
30.5% Freq
Solution
ArrayHash TableBinary Search+2 more
Hard
52.2% Accepted
30.5% Freq
Solution
ArrayBinary SearchStack+4 more
Medium
63.2% Accepted
30.4% Freq
Solution
ArrayLinked ListStack+1 more
Medium
20.8% Accepted
30.2% Freq
ArrayHash TablePrefix Sum
Medium
52.3% Accepted
30.1% Freq
ArraySorting
Medium
53.7% Accepted
30.1% Freq
ArrayMathSimulation+2 more
Medium
70.7% Accepted
30.1% Freq
Solution
ArrayHash TableMatrix+1 more
Medium
54.4% Accepted
30.0% Freq
Solution
ArrayStringBacktracking+1 more
Medium
64.4% Accepted
29.9% Freq
Solution
ArrayLinked ListDesign+1 more
Medium
54.7% Accepted
29.8% Freq
ArrayBreadth-First SearchGraph
Hard
27.7% Accepted
29.4% Freq
ArrayStringTrie+3 more
Medium
20.9% Accepted
29.3% Freq
ArrayStringBinary Search+6 more
Hard
64.4% Accepted
29.1% Freq
Solution
ArrayMathBit Manipulation+2 more
Medium
76.2% Accepted
29.1% Freq
ArrayHash TableString+2 more
Medium
34.1% Accepted
29.1% Freq
ArrayTwo PointersBinary Search+2 more
Medium
43.9% Accepted
29.1% Freq
ArraySliding WindowPrefix Sum
Medium
67.7% Accepted
28.9% Freq
ArrayDynamic ProgrammingStack+2 more
Hard
76.5% Accepted
28.9% Freq
Solution
ArrayDynamic ProgrammingGreedy+1 more
Medium
37.4% Accepted
28.8% Freq
ArrayBinary SearchSorting+1 more
Medium
80.4% Accepted
28.7% Freq
Solution
ArrayStackSimulation
Medium
63.8% Accepted
28.5% Freq
ArrayDivide and ConquerBit Manipulation+5 more
Hard
56.2% Accepted
28.5% Freq
Solution
ArrayHash TableTree+3 more
Hard
44.7% Accepted
27.9% Freq
ArrayDynamic ProgrammingMatrix
Hard
60.8% Accepted
27.6% Freq
Solution
ArrayStringTrie+1 more
Medium
55.8% Accepted
27.3% Freq
Solution
ArrayHash TableString
Medium
40.4% Accepted
27.3% Freq
ArrayDynamic ProgrammingPrefix Sum
Medium
31.6% Accepted
27.3% Freq
ArrayHash TableSliding Window+1 more
Hard
55.3% Accepted
27.0% Freq
Solution
ArrayDynamic ProgrammingBit Manipulation+1 more
Medium
61.9% Accepted
27.0% Freq
Solution
ArrayBreadth-First SearchGraph
Medium
42.0% Accepted
26.9% Freq
ArrayHash TableCounting
Medium
52.0% Accepted
26.8% Freq
ArrayHash TableDivide and Conquer+2 more
Medium
44.5% Accepted
26.2% Freq
ArrayDynamic ProgrammingGreedy
Medium
62.4% Accepted
26.0% Freq
Solution
ArraySliding Window
259. 3Sum Smaller
💰 Premium
Medium
51.1% Accepted
25.8% Freq
Solution
ArrayTwo PointersBinary Search+1 more
Medium
56.6% Accepted
25.8% Freq
ArrayLinked ListDesign+2 more
Hard
57.5% Accepted
25.8% Freq
Solution
ArrayDynamic ProgrammingDepth-First Search+5 more
Medium
35.6% Accepted
25.8% Freq
ArrayStackMonotonic Stack
Medium
59.8% Accepted
25.8% Freq
Solution
ArraySliding Window
Medium
39.6% Accepted
25.1% Freq
Solution
ArrayHash TableGreedy+1 more
Medium
39.5% Accepted
25.1% Freq
ArrayStackMonotonic Stack+1 more
Hard
56.3% Accepted
24.8% Freq
Solution
ArrayDynamic ProgrammingQueue+3 more
Medium
60.8% Accepted
24.7% Freq
Solution
ArrayDesignIterator
Medium
50.9% Accepted
24.6% Freq
ArrayHash TableBreadth-First Search+2 more
Medium
63.3% Accepted
24.6% Freq
Solution
ArrayStringDynamic Programming+1 more
Medium
81.7% Accepted
24.4% Freq
Solution
ArrayHash TableTree+1 more
Medium
63.9% Accepted
24.4% Freq
Solution
ArrayGreedyHeap (Priority Queue)
Hard
79.3% Accepted
24.2% Freq
Solution
ArrayGraphTopological Sort+1 more
Medium
47.8% Accepted
24.0% Freq
ArrayHash TableBreadth-First Search
Medium
31.3% Accepted
23.9% Freq
ArrayHash TableMath+1 more
487. Max Consecutive Ones II
💰 Premium
Medium
51.8% Accepted
23.4% Freq
Solution
ArrayDynamic ProgrammingSliding Window
Hard
41.1% Accepted
23.4% Freq
Solution
ArrayDynamic Programming
Medium
41.9% Accepted
23.4% Freq
ArrayGreedy
Medium
43.5% Accepted
23.2% Freq
ArrayBinary SearchTree+3 more
Hard
40.6% Accepted
23.0% Freq
Solution
ArrayHash TableString+2 more
Medium
85.9% Accepted
23.0% Freq
ArraySortingMatrix
Medium
68.7% Accepted
22.9% Freq
Solution
ArrayDynamic Programming
Medium
23.6% Accepted
22.9% Freq
ArrayLinked ListStack+1 more
Medium
52.4% Accepted
22.7% Freq
Solution
ArrayHash TableBinary Search+1 more
Medium
80.5% Accepted
22.7% Freq
Solution
ArrayBit ManipulationQueue+2 more
Medium
49.1% Accepted
22.7% Freq
Solution
ArrayDynamic ProgrammingGreedy
Medium
48.0% Accepted
22.5% Freq
Solution
ArraySorting
Medium
86.4% Accepted
22.3% Freq
Solution
ArrayHash Table
Medium
85.1% Accepted
22.2% Freq
Solution
ArrayStringPrefix Sum
Hard
40.8% Accepted
21.9% Freq
ArrayDynamic ProgrammingStack+2 more
Medium
63.5% Accepted
21.3% Freq
ArrayDynamic Programming
Hard
8.8% Accepted
20.2% Freq
ArrayHash TableDivide and Conquer+2 more
Medium
87.0% Accepted
20.1% Freq
Solution
ArrayMathString+1 more
Medium
71.7% Accepted
19.5% Freq
Solution
ArrayTwo PointersString+1 more
Medium
82.2% Accepted
19.5% Freq
Solution
ArrayLinked ListMatrix+1 more
Medium
65.9% Accepted
19.0% Freq
Solution
ArrayHash TableSorting+1 more
Medium
34.3% Accepted
18.3% Freq
ArrayTwo PointersGreedy+2 more
Medium
72.9% Accepted
18.3% Freq
Solution
ArrayDepth-First SearchBreadth-First Search+2 more
Medium
57.9% Accepted
17.6% Freq
ArrayDynamic ProgrammingStack+2 more
Medium
37.4% Accepted
17.5% Freq
ArrayHash TableDynamic Programming+1 more
Medium
56.1% Accepted
16.0% Freq
Solution
ArrayHash TableSliding Window
Hard
20.5% Accepted
14.2% Freq
ArrayMathTree+1 more
Hard
25.8% Accepted
13.8% Freq
ArrayBinary SearchDynamic Programming+1 more
Medium
32.0% Accepted
13.7% Freq
ArrayHash TablePrefix Sum
Medium
68.4% Accepted
13.5% Freq
ArrayGreedy
Medium
65.4% Accepted
13.4% Freq
Solution
ArrayGraphHeap (Priority Queue)+1 more
Hard
13.5% Accepted
13.2% Freq
ArrayGreedySegment Tree+1 more
Hard
78.1% Accepted
13.0% Freq
Solution
ArrayDynamic ProgrammingStack+2 more
Medium
86.2% Accepted
11.9% Freq
Solution
ArrayDivide and ConquerStack+3 more
Medium
27.2% Accepted
11.6% Freq
ArrayPrefix Sum
Medium
59.4% Accepted
11.5% Freq
ArrayGreedy
Medium
62.3% Accepted
9.2% Freq
ArrayMathGreedy+2 more
Hard
44.2% Accepted
8.0% Freq
ArrayDivide and ConquerBinary Indexed Tree+1 more
Hard
52.2% Accepted
6.2% Freq
ArrayDynamic Programming
Hard
12.4% Accepted
6.1% Freq
ArrayMathGreedy+2 more
Hard
47.0% Accepted
6.1% Freq
ArrayMathDynamic Programming+3 more
Medium
69.7% Accepted
5.0% Freq
Solution
ArrayHash TableLinked List
Medium
24.4% Accepted
3.8% Freq
ArrayHash TablePrefix Sum
Hard
25.0% Accepted
3.0% Freq
ArrayHash TablePrefix Sum
Medium
24.3% Accepted
2.4% Freq
ArrayHash TableMath+2 more
Medium
40.9% Accepted
2.2% Freq
ArrayBinary Search
Medium
67.5% Accepted
1.8% Freq
ArrayDivide and ConquerSimulation
379. Design Phone Directory
💰 Premium
Medium
52.6% Accepted
Solution
ArrayHash TableLinked List+2 more
Medium
50.5% Accepted
Solution
ArrayDynamic ProgrammingMatrix
644. Maximum Average Subarray II
💰 Premium
Hard
37.6% Accepted
Solution
ArrayBinary SearchPrefix Sum
Hard
35.8% Accepted
ArrayBreadth-First SearchHeap (Priority Queue)+1 more
683. K Empty Slots
💰 Premium
Hard
37.9% Accepted
Solution
ArrayBinary Indexed TreeSegment Tree+5 more
750. Number Of Corner Rectangles
💰 Premium
Medium
67.9% Accepted
Solution
ArrayMathDynamic Programming+1 more
Hard
53.0% Accepted
Solution
ArrayPrefix Sum
Medium
73.2% Accepted
Solution
ArrayHash TableString+1 more
Medium
49.2% Accepted
Solution
Array
Hard
45.2% Accepted
Solution
ArrayHash TableDepth-First Search+3 more
Medium
35.7% Accepted
Solution
ArrayStringBacktracking+1 more
Medium
36.0% Accepted
Solution
ArrayStringGreedy
Hard
59.4% Accepted
Solution
ArrayStringDynamic Programming
Medium
50.5% Accepted
ArrayDepth-First SearchBreadth-First Search+1 more
Medium
58.2% Accepted
ArrayMathSliding Window+1 more
Medium
45.7% Accepted
ArrayMathString+2 more
1066. Campus Bikes II
💰 Premium
Medium
55.8% Accepted
Solution
ArrayDynamic ProgrammingBacktracking+2 more
Medium
78.6% Accepted
Solution
ArrayHash TableMatrix
Medium
63.7% Accepted
ArrayHash TableGreedy+2 more
Hard
65.1% Accepted
Solution
ArrayCounting
Medium
61.1% Accepted
Solution
ArraySliding Window
Hard
39.7% Accepted
ArrayBinary SearchDesign+2 more
Medium
63.0% Accepted
ArrayHash TableString+2 more
Hard
47.5% Accepted
Solution
ArrayHash TableString+2 more
1182. Shortest Distance to Target Color
💰 Premium
Medium
56.4% Accepted
Solution
ArrayBinary SearchDynamic Programming
Medium
76.8% Accepted
Solution
ArrayHash TableBinary Search+2 more
Hard
51.4% Accepted
ArrayBreadth-First SearchMatrix
Medium
59.0% Accepted
ArrayHash TableGreedy+1 more
Hard
41.6% Accepted
ArrayDynamic ProgrammingMatrix
Medium
63.7% Accepted
ArraySorting
Hard
33.0% Accepted
ArrayMathDynamic Programming+2 more
Medium
65.9% Accepted
Array
Medium
49.5% Accepted
ArrayDepth-First SearchBreadth-First Search+2 more
Medium
84.7% Accepted
ArrayBinary Indexed TreeSimulation
Hard
62.2% Accepted
ArrayBinary SearchHeap (Priority Queue)+1 more
Medium
84.9% Accepted
Solution
ArrayHash TableMath+2 more
Hard
49.2% Accepted
ArrayDynamic Programming
Medium
60.2% Accepted
ArrayHash TableString
Hard
39.4% Accepted
ArrayMathGeometry
Hard
62.4% Accepted
Solution
ArrayDynamic Programming
Hard
60.6% Accepted
ArrayMathDynamic Programming+3 more
Medium
62.3% Accepted
ArrayTwo PointersSorting
Medium
36.6% Accepted
ArrayHash TableBinary Search+2 more
Medium
68.2% Accepted
Solution
ArrayBrainteaserSimulation
Medium
59.2% Accepted
Solution
ArrayGreedySorting
Hard
46.5% Accepted
ArrayBinary SearchBit Manipulation+1 more
Medium
56.7% Accepted
Solution
ArrayBinary SearchInteractive
Medium
48.6% Accepted
ArrayGreedyMatrix
Medium
69.4% Accepted
Solution
ArrayMathInteractive
Medium
48.5% Accepted
ArrayHash TableGreedy+1 more
Medium
62.8% Accepted
ArrayGreedyBit Manipulation
Medium
43.4% Accepted
ArrayHash TableBinary Search+1 more
Hard
58.9% Accepted
Solution
ArrayDepth-First SearchBreadth-First Search+2 more
Hard
53.8% Accepted
Solution
ArrayMathDivide and Conquer+7 more
Hard
64.9% Accepted
Solution
ArrayDynamic ProgrammingMemoization
Medium
42.6% Accepted
ArrayHash TableMath+1 more
Medium
39.8% Accepted
ArrayGreedySorting+1 more
Medium
35.3% Accepted
ArrayDynamic ProgrammingMatrix
Medium
44.3% Accepted
ArraySimulation
Medium
82.8% Accepted
Solution
ArrayGreedyMatrix
Medium
61.6% Accepted
ArrayStringBinary Search+1 more
Medium
38.8% Accepted
ArrayEnumeration
Hard
48.9% Accepted
ArrayMathUnion Find+1 more
Medium
42.8% Accepted
ArrayHash TablePrefix Sum
Hard
40.6% Accepted
ArrayDynamic ProgrammingBit Manipulation+1 more
Hard
39.7% Accepted
ArrayDynamic ProgrammingSegment Tree+4 more
Medium
58.6% Accepted
Solution
ArrayMathDynamic Programming+1 more
Hard
63.0% Accepted
Solution
ArrayTwo PointersUnion Find+2 more
Medium
41.1% Accepted
Solution
ArrayGreedyHeap (Priority Queue)
Medium
72.2% Accepted
Solution
ArrayMatrixSimulation
Hard
49.2% Accepted
ArrayHash TableBinary Search+1 more
Hard
49.6% Accepted
ArrayDynamic Programming
Medium
48.9% Accepted
ArrayDepth-First SearchUnion Find
Hard
53.7% Accepted
ArrayMathDynamic Programming+2 more
Medium
35.4% Accepted
ArrayPrefix Sum
Medium
65.3% Accepted
Solution
ArrayDynamic Programming
1756. Design Most Recently Used Queue
💰 Premium
Medium
77.7% Accepted
Solution
ArrayLinked ListDivide and Conquer+3 more
Medium
54.4% Accepted
ArrayTwo PointersGreedy+1 more
Medium
75.4% Accepted
Solution
ArrayBreadth-First SearchMatrix
Hard
42.8% Accepted
Solution
ArrayDynamic Programming
Medium
48.1% Accepted
ArrayDynamic ProgrammingBacktracking
Hard
41.7% Accepted
ArrayHash TableTwo Pointers+4 more
Medium
44.6% Accepted
ArrayGreedy
Hard
40.4% Accepted
ArrayDynamic ProgrammingBit Manipulation
Medium
63.0% Accepted
ArrayGreedySorting
Hard
57.9% Accepted
Solution
ArrayMathDynamic Programming+4 more
Hard
46.0% Accepted
ArrayBit ManipulationTrie
Medium
72.5% Accepted
ArrayMathSimulation
1810. Minimum Path Cost in a Hidden Grid
💰 Premium
Medium
58.4% Accepted
ArrayDepth-First SearchBreadth-First Search+5 more
Hard
41.0% Accepted
ArrayDynamic ProgrammingBit Manipulation+2 more
Hard
43.4% Accepted
ArrayMathCounting+1 more
Medium
51.9% Accepted
ArrayDepth-First SearchGraph+1 more
Medium
84.8% Accepted
Solution
ArrayBit ManipulationPrefix Sum
Medium
74.1% Accepted
Solution
ArrayGreedySorting+1 more
Hard
62.1% Accepted
ArrayMathBit Manipulation
1852. Distinct Numbers in Each Subarray
💰 Premium
Medium
77.1% Accepted
Solution
ArrayHash TableSliding Window
Medium
54.1% Accepted
Solution
ArrayTwo PointersBinary Search
1858. Longest Word With All Prefixes
💰 Premium
Medium
71.9% Accepted
Solution
ArrayStringDepth-First Search+1 more
1874. Minimize Product Sum of Two Arrays
💰 Premium
Medium
89.1% Accepted
Solution
ArrayGreedySorting
Medium
49.7% Accepted
ArrayMathSorting+3 more
Hard
49.9% Accepted
ArrayDynamic ProgrammingBit Manipulation+1 more
Hard
38.4% Accepted
ArrayDynamic Programming
Medium
72.4% Accepted
Solution
ArraySorting
Medium
53.2% Accepted
Solution
ArrayBinary SearchSimulation+1 more
1902. Depth of BST Given Insertion Order
💰 Premium
Medium
42.4% Accepted
ArrayTreeBinary Search Tree+2 more
Hard
28.9% Accepted
ArrayBinary SearchRolling Hash+2 more
Medium
42.0% Accepted
Solution
ArrayDynamic ProgrammingMatrix
Medium
81.3% Accepted
Solution
ArrayHash TableCounting
Medium
60.4% Accepted
Solution
ArrayHash TableHeap (Priority Queue)
Medium
37.5% Accepted
ArrayStringGreedy
Medium
63.9% Accepted
ArrayDynamic ProgrammingBacktracking+2 more
Medium
48.1% Accepted
ArrayStackMonotonic Stack
Hard
52.4% Accepted
ArrayDynamic Programming
Hard
50.1% Accepted
ArrayMathBinary Search+2 more
Medium
43.4% Accepted
ArrayDynamic Programming
Hard
62.6% Accepted
Solution
ArrayBinary SearchBinary Indexed Tree
Medium
62.5% Accepted
ArrayBinary Search
Medium
50.4% Accepted
ArrayGreedySorting
Medium
79.4% Accepted
Solution
ArrayHash TableString+1 more
Medium
53.6% Accepted
ArrayHash TablePrefix Sum
Medium
47.3% Accepted
ArrayStringDivide and Conquer+3 more
Medium
49.3% Accepted
ArrayGreedy
Medium
40.1% Accepted
ArrayDynamic Programming
Medium
51.9% Accepted
ArrayHash TableMath+2 more
Medium
58.0% Accepted
ArrayGreedySorting+1 more
Hard
33.6% Accepted
ArrayHash TableMath+4 more
Hard
35.1% Accepted
ArrayHash TableCounting+2 more
Medium
57.4% Accepted
Solution
ArrayMathSimulation
Medium
49.2% Accepted
ArrayBinary SearchDivide and Conquer+4 more
Medium
50.9% Accepted
ArrayDynamic Programming
Hard
48.4% Accepted
ArrayStringBacktracking+1 more
Medium
51.2% Accepted
ArrayBreadth-First Search
Medium
62.4% Accepted
Solution
ArrayMatrixSimulation
Medium
40.7% Accepted
ArrayHash TableBinary Search+2 more
Hard
66.1% Accepted
ArrayDynamic ProgrammingMatrix
Medium
35.6% Accepted
ArrayGreedySorting
Medium
60.4% Accepted
Solution
ArrayHash TableSliding Window
Medium
59.9% Accepted
ArrayMathDynamic Programming
Medium
70.2% Accepted
Array
Medium
45.3% Accepted
ArrayHash TablePrefix Sum
Hard
42.2% Accepted
ArrayGraphMatrix
Medium
76.2% Accepted
ArrayMathBit Manipulation+1 more
Medium
43.8% Accepted
ArrayHash TableString+2 more
Medium
67.4% Accepted
ArrayBinary Search
Hard
52.5% Accepted
ArrayDynamic Programming
Medium
43.2% Accepted
ArrayHash TableMath+5 more
Medium
64.8% Accepted
Array
Hard
55.5% Accepted
ArraySegment TreeOrdered Set
Medium
44.0% Accepted
ArrayGreedySorting+2 more
Hard
50.3% Accepted
ArrayDynamic ProgrammingBit Manipulation+1 more
Medium
67.1% Accepted
ArrayBit ManipulationBreadth-First Search+1 more
Medium
49.5% Accepted
ArrayDynamic ProgrammingBit Manipulation+1 more
Medium
26.5% Accepted
ArrayMathGreedy+1 more
Medium
56.7% Accepted
ArrayHash TableSimulation
Medium
23.7% Accepted
ArrayGreedy
Medium
49.6% Accepted
ArrayGreedyHeap (Priority Queue)
Medium
51.0% Accepted
ArrayBacktrackingBit Manipulation+1 more
Hard
33.8% Accepted
ArrayStringSegment Tree+1 more
Medium
49.5% Accepted
ArrayStackGreedy
Hard
60.4% Accepted
Solution
ArrayDynamic ProgrammingPrefix Sum
Medium
42.8% Accepted
ArrayGreedyHeap (Priority Queue)
Hard
30.0% Accepted
ArrayTwo PointersBinary Search+4 more
Medium
62.6% Accepted
ArrayPrefix Sum
Medium
37.1% Accepted
ArrayMatrixPrefix Sum
Medium
67.3% Accepted
Solution
ArrayMatrixSimulation
Medium
54.5% Accepted
ArrayHash TableTrie+3 more
Hard
39.8% Accepted
ArrayDynamic ProgrammingMatrix
Medium
35.3% Accepted
ArrayBinary SearchGreedy+3 more
Hard
46.0% Accepted
Solution
ArrayDynamic Programming
Medium
67.8% Accepted
Solution
ArrayGreedySorting
Medium
26.5% Accepted
ArrayMathGeometry+2 more
Medium
47.5% Accepted
ArrayStackMatrix+1 more
Medium
59.0% Accepted
ArrayHash TableString+1 more
Medium
59.3% Accepted
ArrayHash TableSimulation
Medium
67.7% Accepted
ArrayDynamic ProgrammingMatrix
Hard
43.6% Accepted
ArrayDepth-First SearchUnion Find+1 more
Hard
52.3% Accepted
ArrayDynamic ProgrammingMemoization
Medium
79.6% Accepted
ArrayMathBit Manipulation
Hard
58.0% Accepted
ArrayDynamic Programming
Medium
65.8% Accepted
ArrayGreedySorting
Medium
26.2% Accepted
ArrayBinary SearchGreedy+2 more
Hard
45.0% Accepted
ArrayStackUnion Find+1 more
Medium
72.2% Accepted
ArrayGreedy
Medium
46.5% Accepted
ArrayStringDivide and Conquer+4 more
Hard
58.8% Accepted
ArrayMathSorting+2 more
Medium
36.6% Accepted
ArrayStackSorting+1 more
Hard
69.2% Accepted
ArrayHash TableGreedy
Hard
39.4% Accepted
Solution
ArrayDynamic ProgrammingStack+1 more
Medium
68.4% Accepted
ArrayMathBinary Search+1 more
2361. Minimum Costs Using the Train Line
💰 Premium
Hard
77.7% Accepted
Solution
ArrayDynamic Programming
Medium
52.1% Accepted
Solution
ArrayDynamic Programming
2371. Minimize Maximum Value in a Grid
💰 Premium
Hard
70.4% Accepted
Solution
ArrayUnion FindGraph+3 more
Medium
71.3% Accepted
Solution
ArrayMathDynamic Programming
Medium
57.4% Accepted
ArrayBacktrackingBit Manipulation+2 more
Hard
37.5% Accepted
ArrayBinary SearchQueue+4 more
2403. Minimum Time to Kill All Monsters
💰 Premium
Hard
57.1% Accepted
ArrayDynamic ProgrammingBit Manipulation+1 more
Hard
25.7% Accepted
ArrayDivide and ConquerDynamic Programming+4 more
Hard
41.8% Accepted
ArrayGreedySorting
Medium
66.9% Accepted
Solution
ArrayBit ManipulationBrainteaser
Medium
64.6% Accepted
ArrayDynamic Programming
Medium
70.3% Accepted
ArrayMathDynamic Programming+2 more
2445. Number of Nodes With Value One
💰 Premium
Medium
65.7% Accepted
ArrayTreeDepth-First Search+2 more
Hard
45.2% Accepted
ArrayGreedySorting
Hard
58.9% Accepted
Solution
ArrayDynamic ProgrammingSorting
2464. Minimum Subarrays in a Valid Split
💰 Premium
Medium
64.6% Accepted
Solution
ArrayMathDynamic Programming+1 more
Medium
42.2% Accepted
ArrayMathNumber Theory
2473. Minimum Cost to Buy Apples
💰 Premium
Medium
67.1% Accepted
Solution
ArrayGraphHeap (Priority Queue)+1 more
Medium
84.4% Accepted
Solution
ArrayMatrixSimulation
Medium
62.4% Accepted
ArrayMathDynamic Programming
Hard
41.1% Accepted
ArrayHash TableGreedy+1 more
2505. Bitwise OR of All Subsequence Sums
💰 Premium
Medium
64.4% Accepted
ArrayMathBit Manipulation+2 more
Medium
51.5% Accepted
ArrayDynamic ProgrammingMatrix
2519. Count the Number of K-Big Indices
💰 Premium
Hard
53.4% Accepted
ArrayBinary SearchDivide and Conquer+4 more
Hard
35.5% Accepted
ArrayHash TableMath+2 more
Hard
34.0% Accepted
ArrayBinary SearchGreedy+3 more
Hard
44.3% Accepted
ArrayHeap (Priority Queue)Simulation
Medium
32.8% Accepted
ArrayMathGreedy
Medium
68.0% Accepted
Solution
ArrayHash TableBinary Search+2 more
Medium
36.4% Accepted
ArrayBinary SearchSliding Window
Medium
27.6% Accepted
ArrayDynamic ProgrammingDepth-First Search+2 more
Medium
35.1% Accepted
ArrayBinary SearchGreedy+1 more
Medium
49.5% Accepted
ArrayGreedySorting
Medium
58.3% Accepted
ArrayBit ManipulationBrainteaser
Hard
32.4% Accepted
ArrayStringDynamic Programming+3 more
Medium
35.2% Accepted
ArrayMathString
Medium
40.7% Accepted
ArrayTwo PointersBinary Search+2 more
Hard
47.5% Accepted
ArrayHash TableDynamic Programming+2 more
Hard
28.5% Accepted
ArrayHash TableMath+1 more
Medium
52.8% Accepted
ArrayHash TableBit Manipulation+1 more
Hard
38.8% Accepted
ArrayBinary SearchStack+2 more
Medium
64.5% Accepted
Solution
ArrayHash TableSorting+2 more
2599. Make the Prefix Sum Non-negative
💰 Premium
Medium
51.8% Accepted
Solution
ArrayGreedyHeap (Priority Queue)
Medium
55.6% Accepted
Solution
ArrayMathBinary Search+2 more
2604. Minimum Time to Eat All Grains
💰 Premium
Hard
40.0% Accepted
ArrayTwo PointersBinary Search+1 more
Medium
57.5% Accepted
ArrayHash TableString+1 more
Hard
15.7% Accepted
ArrayHash TableBreadth-First Search+2 more
Hard
23.2% Accepted
ArrayDynamic ProgrammingStack+5 more
2638. Count the Number of K-Free Subsets
💰 Premium
Medium
47.0% Accepted
ArrayMathDynamic Programming+2 more
Medium
72.4% Accepted
ArrayPrefix Sum
Medium
34.0% Accepted
ArrayMathNumber Theory
Medium
70.4% Accepted
Solution
ArrayDepth-First SearchBreadth-First Search+2 more
Medium
63.9% Accepted
Solution
ArrayHash TableMatrix
Medium
59.9% Accepted
ArraySortingHeap (Priority Queue)+2 more
Medium
79.8% Accepted
Solution
ArrayBit Manipulation
Medium
58.8% Accepted
Solution
ArrayDynamic ProgrammingMatrix
Hard
43.1% Accepted
ArrayBinary Search
Medium
68.1% Accepted
ArrayHash TableMatrix
Hard
31.1% Accepted
ArrayHash TableBinary Search+5 more
Hard
46.5% Accepted
ArrayHash TableBit Manipulation+1 more
2737. Find the Closest Marked Node
💰 Premium
Medium
65.3% Accepted
Solution
ArrayGraphHeap (Priority Queue)+1 more
Medium
29.0% Accepted
ArrayDynamic ProgrammingBit Manipulation+1 more
Medium
26.8% Accepted
ArrayStringDynamic Programming
Medium
34.4% Accepted
ArrayMathDynamic Programming
Medium
36.5% Accepted
ArrayMathEnumeration+1 more
Hard
42.8% Accepted
ArrayHash TableOrdered Set
Medium
32.0% Accepted
ArrayDynamic Programming
Medium
33.0% Accepted
ArrayPrefix Sum
Medium
75.5% Accepted
Solution
ArrayHash TableSorting
Medium
37.1% Accepted
ArrayDynamic Programming
Medium
47.3% Accepted
ArrayGreedy
Hard
22.6% Accepted
ArrayMathBinary Search+2 more
Medium
28.0% Accepted
ArrayHash Table
Hard
26.4% Accepted
ArrayDynamic ProgrammingSorting
Medium
34.2% Accepted
ArrayDynamic ProgrammingGreedy
Hard
28.3% Accepted
ArrayHash TableStack+3 more
Hard
53.7% Accepted
ArrayBreadth-First SearchMatrix
Hard
53.9% Accepted
Solution
ArrayMathStack+4 more
Hard
45.2% Accepted
ArrayBinary SearchSorting+1 more
Medium
42.5% Accepted
ArrayBinary SearchDynamic Programming
Medium
75.4% Accepted
Solution
ArrayStackMonotonic Stack
Hard
32.1% Accepted
ArrayGreedyBit Manipulation
Hard
29.8% Accepted
ArrayDynamic ProgrammingBit Manipulation
2838. Maximum Coins Heroes Can Collect
💰 Premium
Medium
68.6% Accepted
Solution
ArrayTwo PointersBinary Search+2 more
Medium
40.1% Accepted
ArrayHash TableSliding Window
Medium
58.1% Accepted
Solution
ArrayHash TablePrefix Sum
2852. Sum of Remoteness of All Cells
💰 Premium
Medium
70.9% Accepted
Solution
ArrayHash TableDepth-First Search+3 more
Medium
26.2% Accepted
ArrayHash TableTwo Pointers+3 more
Medium
32.5% Accepted
ArrayHash TableBit Manipulation
Hard
42.2% Accepted
ArrayMathNumber Theory
Medium
70.1% Accepted
ArrayStackSorting+1 more
Medium
62.0% Accepted
Solution
ArrayHash TableGreedy+1 more
Medium
42.0% Accepted
ArrayGreedyBit Manipulation
Medium
40.5% Accepted
ArrayDynamic ProgrammingGreedy
Hard
43.8% Accepted
ArrayHash TableGreedy+1 more
Hard
21.3% Accepted
ArrayHash TableDynamic Programming+1 more
Medium
32.3% Accepted
ArrayTwo Pointers
Medium
55.0% Accepted
ArrayBinary Indexed TreeSegment Tree
Medium
24.1% Accepted
ArrayHash TableGreedy
Medium
38.7% Accepted
ArrayDynamic Programming
Hard
21.5% Accepted
ArrayDynamic ProgrammingBinary Indexed Tree+1 more
Hard
44.8% Accepted
ArrayBinary Indexed TreeSegment Tree
Hard
25.3% Accepted
ArrayBinary SearchDynamic Programming+2 more
Hard
60.8% Accepted
ArrayGreedySorting+2 more
Medium
43.6% Accepted
ArrayEnumeration
Hard
31.6% Accepted
ArrayHash TableBit Manipulation+2 more
Medium
47.9% Accepted
ArrayDynamic ProgrammingQueue+2 more
Medium
57.5% Accepted
ArrayGreedySorting
2955. Number of Same-End Substrings
💰 Premium
Medium
61.6% Accepted
Solution
ArrayHash TableString+2 more
Hard
48.2% Accepted
ArrayHash TableMath+1 more
Medium
22.8% Accepted
ArrayMathBinary Search+2 more
Hard
46.2% Accepted
ArrayDynamic ProgrammingQueue+2 more
Medium
65.5% Accepted
Solution
ArrayGreedySorting+1 more
Hard
39.6% Accepted
ArrayTwo PointersBinary Search
Medium
24.6% Accepted
ArrayHash TableEnumeration
Medium
57.4% Accepted
Solution
ArrayStringGraph+1 more
Hard
26.0% Accepted
ArrayStringDynamic Programming+3 more
Medium
72.1% Accepted
ArrayMathDynamic Programming+4 more
Medium
85.4% Accepted
Solution
ArrayBit Manipulation
3004. Maximum Subtree of the Same Color
💰 Premium
Medium
57.6% Accepted
ArrayDynamic ProgrammingTree+1 more
Hard
45.1% Accepted
ArrayHash TableMath+4 more
Medium
35.4% Accepted
ArrayMathGreedy+1 more
Hard
31.0% Accepted
ArrayHash TableSliding Window+1 more
Hard
43.9% Accepted
ArrayDynamic Programming
Medium
26.5% Accepted
ArrayHash TableEnumeration
Hard
29.0% Accepted
ArrayGreedyBit Manipulation
3023. Find Pattern in Infinite Stream I
💰 Premium
Medium
56.8% Accepted
ArraySliding WindowRolling Hash+2 more
3037. Find Pattern in Infinite Stream II
💰 Premium
Hard
66.9% Accepted
ArraySliding WindowRolling Hash+2 more
Medium
33.6% Accepted
ArrayDynamic ProgrammingMemoization
Hard
33.2% Accepted
ArrayDynamic ProgrammingSorting
Hard
20.5% Accepted
ArrayBinary SearchGreedy+1 more
Medium
45.8% Accepted
Solution
ArrayHeap (Priority Queue)Simulation
Medium
55.0% Accepted
ArrayTreeDepth-First Search
Medium
57.9% Accepted
ArrayMatrixPrefix Sum
Hard
29.8% Accepted
ArrayBinary Indexed TreeSegment Tree+1 more
Medium
64.4% Accepted
ArrayHash TableString+1 more
Medium
48.4% Accepted
ArrayHash TableSorting+2 more
Hard
20.7% Accepted
ArrayGreedySliding Window+1 more
Medium
42.1% Accepted
ArrayHash TableHeap (Priority Queue)+1 more
Medium
50.2% Accepted
Solution
ArrayBit ManipulationSliding Window
Hard
24.1% Accepted
ArrayDynamic ProgrammingSorting
Medium
47.3% Accepted
ArrayGreedySorting
3109. Find the Index of Permutation
💰 Premium
Medium
35.1% Accepted
ArrayBinary SearchDivide and Conquer+4 more
Hard
19.1% Accepted
ArrayMathBinary Search+3 more
Hard
27.4% Accepted
ArrayBinary SearchDynamic Programming+3 more
Medium
32.5% Accepted
ArrayTwo PointersSorting+1 more
3141. Maximum Hamming Distances
💰 Premium
Hard
48.0% Accepted
ArrayBit ManipulationBreadth-First Search
Medium
38.7% Accepted
ArrayHash TableString+2 more
Hard
22.9% Accepted
ArrayBinary SearchBit Manipulation
Medium
47.3% Accepted
ArrayDynamic ProgrammingMatrix
Medium
45.7% Accepted
Solution
ArrayBinary SearchPrefix Sum
Medium
42.2% Accepted
ArrayMathBinary Search
Medium
54.2% Accepted
Solution
ArrayHash TableSimulation
Hard
30.4% Accepted
ArrayBinary SearchBit Manipulation+1 more
Medium
32.1% Accepted
ArrayHash TableDynamic Programming
Hard
24.4% Accepted
ArrayHash TableDynamic Programming
Hard
21.1% Accepted
ArrayDynamic ProgrammingBit Manipulation
Medium
43.3% Accepted
ArrayHash TableCounting
Medium
76.0% Accepted
Solution
ArrayGreedySorting+1 more
Medium
64.6% Accepted
ArrayDynamic ProgrammingGreedy
Medium
29.2% Accepted
ArrayDynamic Programming
3205. Maximum Array Hopping Score I
💰 Premium
Medium
77.4% Accepted
ArrayDynamic ProgrammingStack+2 more
Hard
34.5% Accepted
ArrayBinary SearchBit Manipulation+1 more
Hard
19.0% Accepted
ArrayStringDynamic Programming+1 more
Medium
60.4% Accepted
ArrayBit Manipulation
Medium
58.1% Accepted
ArrayDynamic ProgrammingGreedy+1 more
Medium
23.8% Accepted
ArrayHash TablePrefix Sum
Hard
25.8% Accepted
ArrayDynamic ProgrammingMatrix+1 more
Hard
45.5% Accepted
ArrayBinary Search
Medium
27.3% Accepted
ArrayMathNumber Theory
Hard
25.5% Accepted
ArrayMathDepth-First Search+3 more
Medium
74.6% Accepted
ArrayTwo PointersMatrix
Hard
26.0% Accepted
ArrayGreedyGraph+1 more
Hard
16.2% Accepted
ArrayBinary Indexed TreeOrdered Set
Medium
47.4% Accepted
ArrayMathDynamic Programming+1 more
Hard
23.7% Accepted
ArrayMathDynamic Programming+2 more
Medium
62.3% Accepted
Solution
ArraySliding Window
Medium
30.9% Accepted
ArraySliding Window
Hard
15.6% Accepted
ArrayDynamic ProgrammingMatrix+1 more
Hard
26.6% Accepted
ArrayDynamic ProgrammingMatrix+1 more
Medium
49.7% Accepted
ArrayDynamic Programming
Hard
22.4% Accepted
ArrayStringBinary Search+2 more
Medium
37.9% Accepted
ArrayHash TableSorting+2 more
Hard
12.1% Accepted
ArrayHeap (Priority Queue)Simulation
Hard
26.7% Accepted
ArrayHash TableSorting+2 more
Hard
38.9% Accepted
ArrayGreedySorting
Medium
48.6% Accepted
ArrayHeap (Priority Queue)
Hard
38.3% Accepted
ArrayHash TableString+3 more
3284. Sum of Consecutive Subarrays
💰 Premium
Medium
42.2% Accepted
ArrayTwo PointersDynamic Programming
Medium
31.8% Accepted
ArrayBreadth-First SearchGraph+3 more
Hard
19.7% Accepted
ArrayDynamic ProgrammingBit Manipulation
Hard
17.6% Accepted
ArrayBinary SearchSorting
Medium
41.1% Accepted
ArrayDynamic Programming
Hard
18.8% Accepted
ArrayStringBinary Search+5 more
Medium
81.7% Accepted
ArrayLinked ListDoubly-Linked List
Medium
36.5% Accepted
ArrayMathBinary Search+2 more
3299. Sum of Consecutive Subsequences
💰 Premium
Hard
41.7% Accepted
ArrayHash TableDynamic Programming
Medium
65.2% Accepted
ArrayBit ManipulationEnumeration
Hard
28.8% Accepted
ArrayHash TableGraph+1 more
Medium
35.4% Accepted
ArrayBit Manipulation
Hard
16.7% Accepted
ArrayHash TableSliding Window+1 more
Medium
50.3% Accepted
ArrayBinary SearchSliding Window+1 more
Medium
28.9% Accepted
ArrayMathGreedy+1 more
Medium
47.1% Accepted
ArrayDynamic ProgrammingMatrix
Hard
30.4% Accepted
ArrayMathDynamic Programming+1 more
Hard
50.3% Accepted
ArrayStackMatrix+1 more
Medium
53.1% Accepted
ArrayStringPrefix Sum
Medium
36.0% Accepted
ArrayHash TableCounting+1 more
Medium
50.5% Accepted
ArrayMathBinary Indexed Tree+4 more
Medium
27.9% Accepted
ArrayHash TablePrefix Sum
3383. Minimum Runes to Add to Cast Spell
💰 Premium
Hard
42.7% Accepted
ArrayDepth-First SearchBreadth-First Search+3 more
Medium
16.4% Accepted
ArrayDynamic Programming
Medium
67.9% Accepted
ArrayHash TableDesign+3 more
Medium
40.2% Accepted
ArrayDynamic ProgrammingBit Manipulation+1 more
Hard
18.4% Accepted
ArrayHash TableMath+1 more
Hard
19.7% Accepted
ArrayBinary SearchEnumeration
Medium
84.5% Accepted
ArrayTwo PointersSimulation
Medium
15.4% Accepted
ArrayDynamic Programming
Hard
30.5% Accepted
ArrayBinary SearchDynamic Programming+1 more
Hard
12.2% Accepted
ArrayHash TableMath+1 more
Medium
29.1% Accepted
ArrayDynamic ProgrammingMatrix
Medium
46.6% Accepted
ArrayHash TableMath+2 more
Medium
37.3% Accepted
ArrayGreedySorting
Medium
60.0% Accepted
ArrayHash Table
Hard
26.2% Accepted
ArrayMathDynamic Programming+3 more
Medium
26.4% Accepted
ArrayHash Table
Hard
25.0% Accepted
ArrayBinary SearchGreedy
Medium
60.2% Accepted
ArrayGreedySorting+2 more
Hard
20.4% Accepted
ArrayBinary SearchGreedy
Medium
25.3% Accepted
ArrayDynamic ProgrammingPrefix Sum
Medium
66.1% Accepted
ArrayGreedySorting+1 more
Medium
32.4% Accepted
ArraySortingHeap (Priority Queue)
Hard
22.1% Accepted
ArrayStringTrie
Medium
32.2% Accepted
ArrayHash TableBinary Search
Medium
30.5% Accepted
ArrayDynamic Programming
Medium
47.8% Accepted
ArrayHash TableDepth-First Search+3 more
Medium
52.6% Accepted
ArrayGreedy
Hard
26.5% Accepted
ArrayDynamic ProgrammingPrefix Sum
Hard
17.0% Accepted
ArrayStringBinary Search+1 more
Hard
26.5% Accepted
ArrayHash TableMath+3 more
Hard
52.1% Accepted
ArrayMathGreedy+1 more
Hard
11.3% Accepted
ArrayHash TableDynamic Programming
Hard
14.5% Accepted
ArrayHash TableLinked List+4 more
Medium
25.8% Accepted
ArrayMathBit Manipulation
Medium
53.1% Accepted
ArrayBinary SearchBinary Indexed Tree+1 more
Medium
56.5% Accepted
ArrayHash TableString+1 more
Hard
62.3% Accepted
ArrayTreeBinary Tree
Medium
25.8% Accepted
ArrayStringRolling Hash+3 more
Hard
29.1% Accepted
ArrayDynamic ProgrammingBit Manipulation+3 more
Hard
29.8% Accepted
ArrayDynamic ProgrammingBit Manipulation+1 more
Hard
44.0% Accepted
ArrayDynamic ProgrammingTree+1 more
Medium
42.1% Accepted
ArrayMatrixEnumeration+1 more
Hard
21.2% Accepted
ArrayHash TableMatrix+2 more
Medium
62.2% Accepted
ArrayTwo PointersStack+3 more
Hard
59.8% Accepted
ArrayMathDynamic Programming+3 more
Hard
27.6% Accepted
ArrayTreeDepth-First Search+1 more
Medium
44.2% Accepted
ArrayDynamic ProgrammingMatrix
Hard
18.3% Accepted
ArrayMathBinary Search+3 more
Medium
59.4% Accepted
ArrayMathDynamic Programming+1 more
Medium
71.3% Accepted
ArraySorting
Medium
38.0% Accepted
ArraySliding WindowSorting
Hard
28.3% Accepted
ArrayDivide and Conquer
3656. Determine if a Simple Graph Exists
💰 Premium
Medium
49.5% Accepted
ArrayBinary SearchGraph+2 more
Medium
12.6% Accepted
ArrayDynamic ProgrammingBit Manipulation
3672. Sum of Weighted Modes in Subarrays
💰 Premium
Medium
55.2% Accepted
ArrayHash TableSliding Window+2 more
Medium
34.1% Accepted
ArrayHash TableSliding Window+2 more
Medium
78.7% Accepted
ArrayHash Table
Medium
73.3% Accepted
ArrayString
Medium
42.8% Accepted
ArrayBinary SearchDesign+1 more
Hard
29.5% Accepted
ArrayBinary SearchDepth-First Search+3 more
Medium
42.3% Accepted
ArrayDynamic Programming
Medium
59.6% Accepted
ArrayGreedySorting
3730. Maximum Calories Burnt from Jumps
💰 Premium
Medium
75.2% Accepted
ArrayTwo PointersGreedy+1 more
Page 1 of 135
Dynamic Programming (610 questions)
Hard
66.1% Accepted
99.4% Freq
Solution
ArrayTwo PointersDynamic Programming+2 more
Medium
36.7% Accepted
96.3% Freq
Solution
Two PointersStringDynamic Programming
Hard
58.1% Accepted
90.5% Freq
Solution
Hash TableMathString+2 more
Medium
77.9% Accepted
88.8% Freq
Solution
StringDynamic ProgrammingBacktracking
Medium
52.6% Accepted
88.6% Freq
Solution
ArrayDivide and ConquerDynamic Programming
Hard
77.9% Accepted
88.5% Freq
Solution
Dynamic Programming
Hard
45.8% Accepted
87.6% Freq
Solution
StringDynamic ProgrammingPrefix Sum
Medium
49.9% Accepted
86.1% Freq
Solution
Dynamic Programming
Medium
51.4% Accepted
85.6% Freq
Solution
ArrayStringDynamic Programming
Medium
45.7% Accepted
82.9% Freq
Solution
Hash TableMathString+2 more
Medium
30.0% Accepted
82.9% Freq
ArrayHash TableDynamic Programming+3 more
Medium
59.5% Accepted
82.4% Freq
Dynamic ProgrammingGreedyBit Manipulation
Medium
61.0% Accepted
82.1% Freq
Solution
Dynamic ProgrammingQueueSimulation
Medium
56.6% Accepted
82.0% Freq
Solution
ArrayDynamic ProgrammingBit Manipulation
Medium
59.8% Accepted
81.9% Freq
Solution
MathDynamic ProgrammingProbability and Statistics
Hard
63.7% Accepted
81.5% Freq
Solution
ArrayBinary SearchDynamic Programming+1 more
Hard
69.9% Accepted
81.4% Freq
Solution
ArrayDynamic ProgrammingHeap (Priority Queue)
Medium
47.4% Accepted
81.3% Freq
Solution
ArrayDynamic ProgrammingBreadth-First Search
Hard
54.5% Accepted
80.5% Freq
Solution
ArrayBinary SearchDynamic Programming+1 more
Medium
50.9% Accepted
80.3% Freq
Solution
ArrayBinary SearchDynamic Programming+2 more
Hard
29.9% Accepted
80.1% Freq
Solution
StringDynamic ProgrammingRecursion
Medium
40.1% Accepted
80.0% Freq
Solution
ArrayDynamic ProgrammingGreedy
Medium
52.0% Accepted
79.7% Freq
Solution
MathDynamic ProgrammingSliding Window+1 more
Hard
45.1% Accepted
79.6% Freq
Solution
ArrayDynamic ProgrammingBit Manipulation+1 more
Hard
65.3% Accepted
79.6% Freq
Solution
ArrayDynamic ProgrammingMatrix
Hard
49.2% Accepted
79.5% Freq
Solution
MathStringDynamic Programming+1 more
Medium
38.0% Accepted
79.2% Freq
Solution
ArrayDynamic ProgrammingStack+1 more
465. Optimal Account Balancing
💰 Premium
Hard
50.1% Accepted
78.8% Freq
Solution
ArrayDynamic ProgrammingBacktracking+2 more
Medium
57.3% Accepted
78.8% Freq
Solution
ArrayDynamic Programming
Hard
56.6% Accepted
78.7% Freq
Solution
ArrayDynamic ProgrammingMemoization+1 more
Medium
59.6% Accepted
78.3% Freq
Solution
StringDynamic Programming
Hard
59.2% Accepted
78.3% Freq
Solution
ArrayBinary SearchDynamic Programming+2 more
Medium
70.2% Accepted
78.0% Freq
Solution
ArrayDynamic ProgrammingGreedy
Medium
52.7% Accepted
77.8% Freq
Solution
ArrayDynamic Programming
Medium
54.8% Accepted
77.8% Freq
Solution
ArrayDynamic Programming
Hard
48.9% Accepted
77.7% Freq
Solution
ArrayDynamic ProgrammingMemoization
Medium
52.9% Accepted
77.6% Freq
Solution
StringDynamic ProgrammingGreedy+1 more
Hard
40.4% Accepted
76.8% Freq
StringDynamic Programming
Hard
55.2% Accepted
76.3% Freq
Solution
ArrayDynamic ProgrammingStack+2 more
Hard
47.5% Accepted
76.3% Freq
Solution
Dynamic ProgrammingTreeDepth-First Search+1 more
Medium
80.6% Accepted
76.3% Freq
Solution
ArrayDynamic ProgrammingMatrix
Medium
58.6% Accepted
76.0% Freq
Solution
ArrayBinary SearchDynamic Programming
Hard
73.2% Accepted
75.8% Freq
Solution
Dynamic ProgrammingMemoization
Medium
71.0% Accepted
75.5% Freq
Solution
ArrayDynamic ProgrammingStack+2 more
1216. Valid Palindrome III
💰 Premium
Hard
49.1% Accepted
75.2% Freq
Solution
StringDynamic Programming
Hard
41.7% Accepted
75.2% Freq
Solution
Dynamic ProgrammingTreeDepth-First Search+1 more
Medium
42.1% Accepted
74.9% Freq
Solution
ArrayDynamic ProgrammingGreedy
Hard
50.7% Accepted
74.1% Freq
Solution
ArrayDynamic ProgrammingGreedy
Medium
72.2% Accepted
74.1% Freq
Solution
Two PointersStringDynamic Programming
Medium
73.1% Accepted
74.1% Freq
Solution
StringDynamic ProgrammingBacktracking
Hard
37.5% Accepted
73.7% Freq
Solution
ArrayBinary SearchDynamic Programming+1 more
Medium
48.8% Accepted
73.7% Freq
Solution
ArrayHash TableString+3 more
Medium
35.6% Accepted
73.6% Freq
Solution
ArrayDynamic Programming
Medium
66.2% Accepted
73.4% Freq
Solution
MathDynamic ProgrammingCombinatorics
Hard
37.3% Accepted
72.6% Freq
Solution
StringDynamic ProgrammingStack
Medium
49.5% Accepted
72.2% Freq
Solution
ArrayDynamic ProgrammingMatrix
Hard
57.4% Accepted
71.2% Freq
Solution
Hash TableDynamic ProgrammingGraph+3 more
Hard
38.6% Accepted
70.9% Freq
Solution
ArrayDynamic ProgrammingMatrix
Hard
55.9% Accepted
70.8% Freq
Solution
ArrayDynamic ProgrammingDepth-First Search+5 more
Medium
51.4% Accepted
70.6% Freq
Solution
ArrayDynamic ProgrammingBacktracking
Hard
54.5% Accepted
70.6% Freq
Solution
ArrayHash TableString+4 more
Medium
58.6% Accepted
70.3% Freq
Solution
StringDynamic Programming
Medium
67.3% Accepted
70.3% Freq
Solution
ArrayDynamic ProgrammingMatrix
Medium
67.2% Accepted
69.9% Freq
Solution
ArrayDynamic Programming
Hard
56.0% Accepted
69.7% Freq
Dynamic ProgrammingDepth-First SearchBreadth-First Search+1 more
Medium
39.5% Accepted
69.6% Freq
Solution
StringDynamic ProgrammingStack+1 more
Hard
22.5% Accepted
69.3% Freq
ArrayTwo PointersBinary Search+4 more
Medium
56.0% Accepted
68.4% Freq
Solution
MathDynamic ProgrammingBreadth-First Search
Hard
26.4% Accepted
68.0% Freq
Solution
ArrayMathDynamic Programming+2 more
Hard
30.8% Accepted
67.9% Freq
Solution
StringDynamic ProgrammingGreedy+1 more
Medium
64.7% Accepted
67.9% Freq
Solution
StringDynamic Programming
Hard
49.6% Accepted
67.8% Freq
Solution
ArrayStringDynamic Programming+3 more
Hard
36.5% Accepted
67.8% Freq
ArrayHash TableMath+5 more
Hard
69.6% Accepted
67.3% Freq
Solution
ArrayDynamic ProgrammingGreedy+3 more
Medium
48.9% Accepted
67.3% Freq
Solution
ArrayDynamic Programming
Medium
48.8% Accepted
67.1% Freq
Solution
ArrayDynamic Programming
Hard
40.2% Accepted
67.1% Freq
Solution
ArrayDynamic ProgrammingMatrix
Medium
55.3% Accepted
66.7% Freq
Solution
Dynamic ProgrammingTreeDepth-First Search+1 more
Hard
42.8% Accepted
66.6% Freq
ArrayDynamic Programming
Medium
70.9% Accepted
66.4% Freq
Solution
ArrayDynamic ProgrammingSliding Window
Hard
29.4% Accepted
66.3% Freq
Solution
MathBinary SearchDynamic Programming
Hard
56.1% Accepted
65.9% Freq
ArrayMathDynamic Programming+1 more
Medium
45.8% Accepted
65.6% Freq
ArrayHash TableBinary Search+2 more
Medium
50.6% Accepted
65.5% Freq
Solution
ArrayHash TableString+4 more
Hard
52.4% Accepted
65.4% Freq
Solution
ArrayDynamic Programming
Hard
62.4% Accepted
65.2% Freq
Solution
ArrayDynamic Programming
Medium
44.2% Accepted
64.6% Freq
Solution
ArrayDynamic Programming
Medium
41.0% Accepted
64.5% Freq
Solution
Dynamic ProgrammingDepth-First SearchBreadth-First Search+3 more
Medium
50.6% Accepted
64.3% Freq
ArrayDynamic Programming
Hard
30.7% Accepted
64.1% Freq
StringDynamic ProgrammingStack+2 more
Medium
62.5% Accepted
64.0% Freq
Solution
ArrayHash TableTwo Pointers+3 more
Hard
44.6% Accepted
63.9% Freq
ArrayDynamic ProgrammingBacktracking+2 more
Hard
36.7% Accepted
63.7% Freq
Solution
MathDynamic ProgrammingRecursion
Medium
64.9% Accepted
63.5% Freq
Solution
ArrayBinary SearchDynamic Programming+1 more
Medium
51.6% Accepted
63.1% Freq
Solution
Dynamic Programming
Hard
65.6% Accepted
63.1% Freq
Solution
Dynamic ProgrammingBit ManipulationBreadth-First Search+2 more
Medium
62.9% Accepted
63.1% Freq
Solution
MathDynamic ProgrammingTree+2 more
Medium
37.2% Accepted
62.6% Freq
Solution
StringDynamic Programming
Medium
45.0% Accepted
62.6% Freq
Solution
ArrayHash TableTwo Pointers+4 more
Hard
36.0% Accepted
62.5% Freq
Solution
StringDynamic Programming
Hard
50.9% Accepted
62.4% Freq
Solution
StringDynamic Programming
Medium
30.3% Accepted
62.4% Freq
ArrayDynamic Programming
Medium
56.2% Accepted
62.0% Freq
Solution
ArrayDynamic ProgrammingGreedy+1 more
Medium
38.3% Accepted
61.7% Freq
Solution
ArrayDynamic ProgrammingBacktracking+3 more
Medium
37.0% Accepted
61.7% Freq
ArrayDynamic ProgrammingQueue+3 more
Medium
49.1% Accepted
61.0% Freq
Solution
ArrayMathDynamic Programming+1 more
Hard
62.5% Accepted
60.9% Freq
Solution
ArrayDynamic ProgrammingSorting
Hard
48.7% Accepted
60.8% Freq
Solution
ArrayDynamic Programming
Hard
59.7% Accepted
60.6% Freq
Solution
ArrayDynamic Programming
Hard
59.6% Accepted
60.5% Freq
Solution
ArrayDynamic ProgrammingSliding Window+1 more
Hard
45.0% Accepted
60.3% Freq
ArrayDynamic ProgrammingPrefix Sum
Medium
61.0% Accepted
60.2% Freq
Solution
ArrayDynamic Programming
Medium
47.5% Accepted
60.0% Freq
StringDynamic ProgrammingGreedy
Hard
56.8% Accepted
59.7% Freq
Solution
ArrayStringDynamic Programming
Hard
29.5% Accepted
59.6% Freq
Dynamic ProgrammingTreeDepth-First Search
727. Minimum Window Subsequence
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Hard
43.7% Accepted
59.5% Freq
Solution
StringDynamic ProgrammingSliding Window
Medium
39.5% Accepted
59.5% Freq
Hash TableStringDynamic Programming+1 more
Medium
60.9% Accepted
59.4% Freq
Solution
ArrayDynamic ProgrammingMatrix
Medium
49.7% Accepted
59.3% Freq
Solution
ArrayHash TableBinary Search+1 more
Hard
53.2% Accepted
58.8% Freq
Solution
Hash TableStringDynamic Programming
Medium
42.9% Accepted
58.8% Freq
Solution
StringDynamic Programming
Medium
30.8% Accepted
58.7% Freq
MathDynamic ProgrammingBit Manipulation+3 more
Medium
62.6% Accepted
58.6% Freq
Solution
ArrayDynamic Programming
Medium
56.8% Accepted
58.1% Freq
Solution
Dynamic Programming
Hard
66.8% Accepted
57.9% Freq
Solution
ArrayDynamic ProgrammingGraph+1 more
Hard
34.1% Accepted
57.8% Freq
Solution
MathDynamic ProgrammingGraph+3 more
Medium
61.3% Accepted
57.7% Freq
Solution
Dynamic ProgrammingBacktrackingTree+2 more
Hard
40.9% Accepted
57.6% Freq
Solution
ArrayDynamic ProgrammingGreedy+1 more
Hard
61.6% Accepted
57.2% Freq
Solution
StringDynamic Programming
Medium
45.7% Accepted
56.8% Freq
ArrayDynamic Programming
Medium
72.8% Accepted
56.7% Freq
Solution
MathStringDynamic Programming+2 more
Medium
54.9% Accepted
56.7% Freq
MathDynamic ProgrammingBacktracking
Medium
41.4% Accepted
56.5% Freq
Solution
ArrayTwo PointersDynamic Programming+1 more
Hard
45.6% Accepted
56.5% Freq
Dynamic ProgrammingTreeDepth-First Search+2 more
Medium
61.7% Accepted
56.4% Freq
Solution
StringDynamic Programming
Medium
52.7% Accepted
56.4% Freq
Solution
ArrayDynamic ProgrammingBreadth-First Search+1 more
Medium
57.0% Accepted
56.1% Freq
Solution
ArrayHash TableDynamic Programming
Hard
50.8% Accepted
56.1% Freq
Solution
ArrayHash TableMath+4 more
2291. Maximum Profit From Trading Stocks
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Medium
47.3% Accepted
56.1% Freq
ArrayDynamic Programming
Medium
56.0% Accepted
56.0% Freq
Solution
ArrayMathDynamic Programming+2 more
Medium
30.6% Accepted
56.0% Freq
ArrayDynamic Programming
Medium
67.4% Accepted
55.7% Freq
Solution
ArrayDynamic Programming
Hard
73.3% Accepted
55.6% Freq
Solution
StringDynamic Programming
Medium
49.4% Accepted
55.2% Freq
Solution
Hash TableMathDynamic Programming+1 more
Hard
37.8% Accepted
55.2% Freq
StringDynamic Programming
Medium
48.6% Accepted
55.1% Freq
Solution
ArrayDivide and ConquerDynamic Programming+2 more
Hard
60.8% Accepted
55.0% Freq
Solution
StringDynamic Programming
Medium
52.0% Accepted
54.6% Freq
Solution
ArrayDynamic ProgrammingBreadth-First Search+1 more
Medium
25.8% Accepted
54.4% Freq
ArrayMathDynamic Programming+2 more
Hard
24.1% Accepted
54.4% Freq
ArrayTwo PointersBinary Search+5 more
Hard
29.7% Accepted
53.9% Freq
ArrayDynamic ProgrammingPrefix Sum
Hard
17.5% Accepted
53.8% Freq
ArrayBinary SearchDynamic Programming+4 more
Medium
64.7% Accepted
53.6% Freq
Solution
ArrayDynamic ProgrammingBacktracking+2 more
Hard
43.1% Accepted
53.5% Freq
ArrayDynamic Programming
Hard
24.3% Accepted
53.5% Freq
ArrayBinary SearchDynamic Programming+2 more
Hard
20.7% Accepted
53.2% Freq
StringDynamic ProgrammingBit Manipulation+2 more
Medium
58.6% Accepted
53.2% Freq
ArrayDynamic Programming
Medium
71.1% Accepted
53.0% Freq
Dynamic ProgrammingMemoizationSorting
Hard
40.6% Accepted
52.9% Freq
ArrayDynamic ProgrammingGraph
Hard
43.2% Accepted
52.8% Freq
Solution
StringDynamic Programming
Medium
63.0% Accepted
52.8% Freq
Solution
Two PointersStringDynamic Programming
Hard
47.1% Accepted
52.7% Freq
Solution
StringDynamic Programming
Hard
65.4% Accepted
52.7% Freq
Solution
Dynamic ProgrammingTreeDepth-First Search+1 more
Hard
44.8% Accepted
52.7% Freq
Solution
ArrayStringDynamic Programming+2 more
Medium
51.3% Accepted
52.7% Freq
ArrayDynamic ProgrammingGreedy
Medium
52.5% Accepted
52.7% Freq
StringDynamic ProgrammingGreedy
Medium
51.1% Accepted
52.7% Freq
ArrayDynamic ProgrammingGreedy+1 more
Medium
51.2% Accepted
52.4% Freq
Solution
ArrayBinary SearchDynamic Programming+3 more
Medium
64.8% Accepted
52.3% Freq
Solution
ArrayDynamic Programming
Medium
40.6% Accepted
52.2% Freq
ArrayDynamic ProgrammingBit Manipulation+1 more
Hard
61.1% Accepted
52.1% Freq
Solution
ArrayDynamic Programming
Medium
41.3% Accepted
51.5% Freq
Solution
ArrayDynamic ProgrammingBacktracking+2 more
Medium
43.7% Accepted
51.1% Freq
Solution
ArrayDynamic ProgrammingMatrix
Hard
48.6% Accepted
50.9% Freq
Solution
ArrayDynamic Programming
Hard
40.5% Accepted
50.9% Freq
ArrayTwo PointersDynamic Programming+1 more
Hard
40.1% Accepted
50.9% Freq
ArrayDynamic ProgrammingBacktracking+2 more
Hard
61.2% Accepted
50.9% Freq
ArrayDynamic ProgrammingSorting
Medium
29.7% Accepted
50.9% Freq
Hash TableStringDynamic Programming+1 more
Medium
61.3% Accepted
50.8% Freq
Solution
ArrayDynamic Programming
Hard
53.5% Accepted
50.5% Freq
ArrayDynamic ProgrammingGreedy+1 more
Medium
52.0% Accepted
50.5% Freq
StringDynamic ProgrammingSimulation
Hard
52.9% Accepted
50.3% Freq
ArrayDynamic ProgrammingBit Manipulation+2 more
Hard
46.6% Accepted
50.3% Freq
Dynamic ProgrammingBit ManipulationTree+2 more
Medium
65.6% Accepted
50.1% Freq
Solution
StringDynamic ProgrammingStack
Medium
71.3% Accepted
50.0% Freq
Solution
ArrayDynamic ProgrammingGreedy
Hard
25.7% Accepted
49.8% Freq
MathStringDynamic Programming+1 more
Hard
30.4% Accepted
49.8% Freq
ArrayHash TableDynamic Programming
Hard
32.8% Accepted
49.7% Freq
ArrayDynamic ProgrammingTree+1 more
Medium
56.6% Accepted
49.2% Freq
Solution
MathDynamic Programming
Medium
41.4% Accepted
49.0% Freq
ArrayDynamic Programming
Hard
66.2% Accepted
48.8% Freq
Solution
Dynamic ProgrammingPrefix Sum
Hard
54.8% Accepted
48.8% Freq
Solution
ArrayBinary SearchDynamic Programming+1 more
Hard
37.0% Accepted
48.8% Freq
MathDynamic ProgrammingBit Manipulation+2 more
1230. Toss Strange Coins
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Medium
58.1% Accepted
48.6% Freq
Solution
ArrayMathDynamic Programming+1 more
Medium
82.7% Accepted
48.4% Freq
Solution
Dynamic ProgrammingTreeRecursion+2 more
Hard
44.6% Accepted
48.3% Freq
MathDynamic Programming
333. Largest BST Subtree
💰 Premium
Medium
45.7% Accepted
48.1% Freq
Solution
Dynamic ProgrammingTreeDepth-First Search+2 more
Hard
42.5% Accepted
48.1% Freq
Two PointersStringDynamic Programming+1 more
Medium
36.4% Accepted
47.9% Freq
ArrayMathDynamic Programming
Medium
61.5% Accepted
47.7% Freq
Solution
MathDynamic Programming
Medium
36.3% Accepted
47.6% Freq
ArrayDynamic ProgrammingMatrix
Medium
72.2% Accepted
47.3% Freq
Solution
ArrayMathDynamic Programming+1 more
Hard
52.2% Accepted
47.1% Freq
Solution
StringDynamic Programming
Medium
49.4% Accepted
47.1% Freq
Hash TableMathString+1 more
Medium
54.5% Accepted
47.0% Freq
Solution
ArrayDynamic ProgrammingPrefix Sum
Hard
28.8% Accepted
47.0% Freq
ArrayDynamic Programming
Hard
56.2% Accepted
46.8% Freq
Solution
Dynamic Programming
Hard
44.6% Accepted
46.6% Freq
ArrayDynamic ProgrammingBit Manipulation+3 more
Hard
41.6% Accepted
46.6% Freq
StringDynamic ProgrammingGreedy
Medium
59.2% Accepted
46.6% Freq
Solution
MathDynamic Programming
Medium
57.5% Accepted
46.5% Freq
Solution
ArrayHash TableDynamic Programming
Hard
54.7% Accepted
46.1% Freq
Solution
ArrayDynamic Programming
Medium
62.3% Accepted
45.0% Freq
Solution
ArrayMathDynamic Programming
Hard
51.8% Accepted
45.0% Freq
Solution
ArrayDynamic Programming
Medium
51.7% Accepted
45.0% Freq
ArrayDynamic ProgrammingMatrix
Hard
29.9% Accepted
45.0% Freq
ArrayBinary SearchDynamic Programming+4 more
Medium
46.4% Accepted
45.0% Freq
Solution
ArrayBinary SearchDynamic Programming+2 more
Medium
71.5% Accepted
44.8% Freq
Solution
Dynamic ProgrammingGraphShortest Path
Medium
54.8% Accepted
44.7% Freq
Solution
ArrayDynamic Programming
Medium
47.7% Accepted
44.7% Freq
ArrayDynamic ProgrammingMatrix
Hard
73.4% Accepted
44.4% Freq
Solution
ArrayDynamic ProgrammingBacktracking+3 more
Medium
59.1% Accepted
44.1% Freq
Solution
Dynamic Programming
Medium
64.7% Accepted
44.0% Freq
Solution
StringDynamic Programming
Hard
59.0% Accepted
43.6% Freq
Two PointersStringDynamic Programming+3 more
Hard
35.5% Accepted
43.6% Freq
MathDynamic ProgrammingTree+2 more
Hard
37.3% Accepted
43.6% Freq
ArrayDynamic Programming
Hard
21.0% Accepted
43.6% Freq
ArrayDynamic ProgrammingSegment Tree
Hard
21.0% Accepted
43.6% Freq
ArrayDynamic ProgrammingTree+1 more
Medium
64.8% Accepted
43.6% Freq
Solution
ArrayDynamic ProgrammingSliding Window
Hard
72.2% Accepted
43.6% Freq
Solution
ArrayDynamic ProgrammingMatrix
Medium
62.0% Accepted
43.1% Freq
StringDynamic ProgrammingBacktracking+2 more
Medium
20.9% Accepted
43.1% Freq
ArrayMathDynamic Programming+2 more
Hard
31.5% Accepted
42.7% Freq
Solution
StringDynamic Programming
Medium
52.3% Accepted
42.6% Freq
ArrayDynamic ProgrammingGreedy
Hard
60.0% Accepted
42.5% Freq
Solution
MathDynamic ProgrammingCombinatorics
Hard
18.4% Accepted
42.5% Freq
ArrayDynamic ProgrammingMatrix
Hard
34.4% Accepted
42.4% Freq
ArrayDynamic ProgrammingBinary Indexed Tree+2 more
Hard
27.2% Accepted
42.4% Freq
ArrayDynamic ProgrammingPrefix Sum
Hard
14.9% Accepted
42.4% Freq
ArrayDivide and ConquerDynamic Programming+1 more
Medium
31.3% Accepted
42.4% Freq
ArrayDynamic ProgrammingBacktracking+3 more
Hard
15.5% Accepted
42.4% Freq
StringDynamic Programming
Medium
55.9% Accepted
42.3% Freq
Solution
ArrayMathDynamic Programming+1 more
Medium
62.0% Accepted
42.1% Freq
Solution
Dynamic Programming
1062. Longest Repeating Substring
💰 Premium
Medium
63.3% Accepted
42.0% Freq
Solution
StringBinary SearchDynamic Programming+3 more
Medium
40.7% Accepted
42.0% Freq
ArrayDynamic ProgrammingTree+1 more
Medium
26.8% Accepted
42.0% Freq
StringDynamic ProgrammingGreedy+1 more
Medium
77.2% Accepted
42.0% Freq
Solution
ArrayDynamic Programming
Hard
43.8% Accepted
41.8% Freq
Solution
StringDynamic Programming
Medium
66.1% Accepted
41.5% Freq
Solution
StringDynamic Programming
Medium
72.1% Accepted
41.5% Freq
Hash TableStringDynamic Programming+1 more
Medium
53.8% Accepted
41.3% Freq
StringDynamic ProgrammingGreedy
Medium
38.7% Accepted
41.3% Freq
ArrayHash TableTwo Pointers+2 more
Hard
27.0% Accepted
41.1% Freq
ArrayDynamic ProgrammingBit Manipulation+4 more
Medium
50.8% Accepted
40.8% Freq
Solution
ArrayDynamic ProgrammingBinary Indexed Tree+1 more
Hard
50.4% Accepted
40.8% Freq
Solution
ArrayHash TableString+5 more
Medium
52.1% Accepted
40.6% Freq
Solution
ArrayDynamic ProgrammingBacktracking+3 more
Medium
60.2% Accepted
40.5% Freq
Solution
ArrayDynamic Programming
Hard
40.9% Accepted
40.3% Freq
Solution
ArrayDynamic ProgrammingStack+3 more
Hard
49.1% Accepted
40.3% Freq
ArrayDynamic ProgrammingBit Manipulation+2 more
Hard
21.2% Accepted
40.3% Freq
StringDynamic ProgrammingSuffix Array
Hard
41.7% Accepted
40.3% Freq
StringDynamic Programming
Medium
47.2% Accepted
40.3% Freq
StringDynamic ProgrammingGreedy
Hard
43.2% Accepted
40.3% Freq
ArrayHash TableDynamic Programming+1 more
Medium
37.7% Accepted
40.3% Freq
ArrayHash TableBinary Search+2 more
Medium
41.2% Accepted
40.3% Freq
ArrayDynamic ProgrammingMatrix
Hard
14.8% Accepted
40.3% Freq
ArrayDynamic ProgrammingBit Manipulation+2 more
Hard
11.9% Accepted
40.3% Freq
MathDynamic Programming
Medium
30.4% Accepted
40.2% Freq
ArrayDynamic ProgrammingBreadth-First Search
Medium
74.3% Accepted
39.8% Freq
MathDynamic Programming
Medium
54.4% Accepted
39.8% Freq
Solution
ArrayHash TableDynamic Programming
Medium
44.8% Accepted
39.8% Freq
ArrayDynamic ProgrammingBreadth-First Search+1 more
Medium
50.6% Accepted
39.6% Freq
StringDynamic ProgrammingPrefix Sum
Hard
52.4% Accepted
39.4% Freq
StringDynamic Programming
Hard
47.2% Accepted
39.4% Freq
ArrayMathDynamic Programming+2 more
Medium
49.4% Accepted
39.3% Freq
Solution
ArrayStringDynamic Programming
351. Android Unlock Patterns
💰 Premium
Medium
53.5% Accepted
39.0% Freq
Solution
Dynamic ProgrammingBacktrackingBit Manipulation+1 more
Hard
61.9% Accepted
39.0% Freq
StringDynamic Programming
Medium
48.1% Accepted
39.0% Freq
Dynamic ProgrammingBreadth-First SearchMemoization
Medium
57.2% Accepted
38.7% Freq
Solution
ArrayHash TableString+2 more
Hard
44.3% Accepted
38.5% Freq
ArrayMathDynamic Programming+1 more
Hard
15.8% Accepted
38.5% Freq
MathStringDynamic Programming+2 more
Medium
37.0% Accepted
38.5% Freq
StringDynamic Programming
Medium
45.7% Accepted
38.4% Freq
ArrayMathDynamic Programming
Medium
58.9% Accepted
38.3% Freq
ArrayDynamic Programming
Hard
50.5% Accepted
38.3% Freq
ArrayDynamic Programming
Medium
34.2% Accepted
37.9% Freq
ArrayDynamic ProgrammingBacktracking+2 more
Hard
38.1% Accepted
37.8% Freq
StringDynamic ProgrammingPrefix Sum
Hard
47.2% Accepted
37.8% Freq
ArrayDynamic ProgrammingTree+2 more
Hard
24.4% Accepted
37.8% Freq
ArrayDynamic ProgrammingBit Manipulation+1 more
Hard
32.7% Accepted
37.6% Freq
Solution
StringDynamic Programming
Medium
44.8% Accepted
37.6% Freq
ArrayMathDynamic Programming
Medium
61.3% Accepted
37.4% Freq
Solution
ArrayDynamic ProgrammingGreedy+1 more
Hard
57.8% Accepted
37.3% Freq
Solution
ArrayBinary SearchDynamic Programming+1 more
Hard
62.0% Accepted
37.0% Freq
Solution
ArrayMathDynamic Programming+3 more
Hard
63.4% Accepted
36.7% Freq
Solution
ArrayDynamic ProgrammingMatrix
Hard
48.9% Accepted
36.7% Freq
Solution
Dynamic Programming
Medium
70.1% Accepted
36.5% Freq
Solution
ArrayDynamic ProgrammingBinary Indexed Tree+1 more
Hard
44.0% Accepted
36.4% Freq
Solution
ArrayMathString+2 more
Hard
29.9% Accepted
36.4% Freq
Dynamic ProgrammingBit ManipulationGraph+1 more
Hard
56.1% Accepted
36.4% Freq
Hash TableStringDynamic Programming
Medium
46.2% Accepted
36.1% Freq
Solution
ArrayDynamic ProgrammingQueue+2 more
Medium
53.0% Accepted
35.7% Freq
Solution
ArrayHash TableDynamic Programming+1 more
Medium
57.7% Accepted
35.7% Freq
ArrayDynamic ProgrammingGreedy+2 more
Hard
63.2% Accepted
35.6% Freq
Solution
ArrayMathDynamic Programming+1 more
Hard
36.6% Accepted
35.6% Freq
Binary SearchDynamic ProgrammingBit Manipulation+4 more
Hard
41.0% Accepted
35.5% Freq
Solution
Dynamic Programming
Hard
42.5% Accepted
35.5% Freq
ArrayTwo PointersDynamic Programming+3 more
Hard
81.6% Accepted
35.4% Freq
Solution
ArrayHash TableString+5 more
Medium
37.2% Accepted
35.3% Freq
Solution
Dynamic ProgrammingGraphTopological Sort+1 more
Hard
61.5% Accepted
35.1% Freq
Solution
ArrayDynamic ProgrammingMemoization+2 more
Hard
40.8% Accepted
35.1% Freq
MathDynamic Programming
Hard
37.7% Accepted
35.1% Freq
MathStringDynamic Programming
Medium
25.1% Accepted
35.0% Freq
ArrayDynamic ProgrammingBacktracking+4 more
Medium
34.4% Accepted
34.6% Freq
ArrayDynamic Programming
Medium
48.5% Accepted
34.3% Freq
Solution
ArrayDynamic ProgrammingSliding Window
Medium
42.0% Accepted
34.3% Freq
StringDynamic Programming
Medium
60.6% Accepted
34.3% Freq
ArrayDynamic ProgrammingSliding Window
Medium
51.0% Accepted
33.8% Freq
ArrayDynamic ProgrammingPrefix Sum
Medium
50.5% Accepted
33.6% Freq
Solution
ArrayDynamic ProgrammingSorting
Medium
72.9% Accepted
33.5% Freq
ArrayMathDynamic Programming+2 more
Hard
59.3% Accepted
33.5% Freq
StringDynamic Programming
Medium
71.4% Accepted
33.3% Freq
Solution
ArrayDynamic Programming
Hard
36.0% Accepted
33.0% Freq
ArrayDynamic ProgrammingBit Manipulation+3 more
Medium
48.3% Accepted
32.7% Freq
Solution
Dynamic Programming
Medium
50.9% Accepted
32.7% Freq
Solution
ArrayHash TableMath+4 more
Hard
45.0% Accepted
32.6% Freq
StringDynamic Programming
Medium
67.0% Accepted
32.5% Freq
MathDynamic ProgrammingBrainteaser+1 more
Hard
35.9% Accepted
32.1% Freq
Dynamic ProgrammingMemoization
Medium
17.0% Accepted
32.1% Freq
ArrayTwo PointersDynamic Programming+1 more
Medium
43.3% Accepted
31.7% Freq
Dynamic Programming
Medium
30.4% Accepted
31.7% Freq
ArrayDynamic Programming
Medium
36.9% Accepted
31.6% Freq
Dynamic ProgrammingGreedyBit Manipulation+1 more
Hard
54.0% Accepted
31.4% Freq
Solution
StringDynamic ProgrammingBit Manipulation+1 more
Medium
60.8% Accepted
31.3% Freq
Solution
ArrayBinary SearchDynamic Programming+2 more
Medium
20.3% Accepted
31.3% Freq
ArrayDynamic Programming
Medium
69.7% Accepted
31.2% Freq
Solution
ArrayDynamic ProgrammingBacktracking+2 more
Medium
46.7% Accepted
30.9% Freq
Solution
Hash TableStringDynamic Programming
Medium
53.1% Accepted
30.5% Freq
Solution
ArrayHash TableBinary Search+2 more
Medium
55.0% Accepted
30.3% Freq
MathStringDynamic Programming+1 more
Medium
20.9% Accepted
29.3% Freq
ArrayStringBinary Search+6 more
Medium
67.7% Accepted
28.9% Freq
ArrayDynamic ProgrammingStack+2 more
Hard
76.5% Accepted
28.9% Freq
Solution
ArrayDynamic ProgrammingGreedy+1 more
Medium
50.6% Accepted
28.8% Freq
StringDynamic ProgrammingStack+1 more
Medium
58.5% Accepted
28.5% Freq
Solution
Dynamic Programming
Medium
40.8% Accepted
28.5% Freq
StringDynamic ProgrammingSliding Window
Hard
59.5% Accepted
28.2% Freq
Solution
MathDynamic ProgrammingGame Theory
Hard
44.7% Accepted
27.9% Freq
ArrayDynamic ProgrammingMatrix
Hard
59.1% Accepted
27.3% Freq
Solution
StringDynamic ProgrammingDepth-First Search+1 more
Medium
40.4% Accepted
27.3% Freq
ArrayDynamic ProgrammingPrefix Sum
Hard
55.3% Accepted
27.0% Freq
Solution
ArrayDynamic ProgrammingBit Manipulation+1 more
Medium
44.5% Accepted
26.2% Freq
ArrayDynamic ProgrammingGreedy
Hard
57.5% Accepted
25.8% Freq
Solution
ArrayDynamic ProgrammingDepth-First Search+5 more
Hard
56.3% Accepted
24.8% Freq
Solution
ArrayDynamic ProgrammingQueue+3 more
Medium
63.3% Accepted
24.6% Freq
Solution
ArrayStringDynamic Programming+1 more
487. Max Consecutive Ones II
💰 Premium
Medium
51.8% Accepted
23.4% Freq
Solution
ArrayDynamic ProgrammingSliding Window
Hard
41.1% Accepted
23.4% Freq
Solution
ArrayDynamic Programming
Medium
68.7% Accepted
22.9% Freq
Solution
ArrayDynamic Programming
Medium
49.1% Accepted
22.7% Freq
Solution
ArrayDynamic ProgrammingGreedy
Medium
66.9% Accepted
22.2% Freq
Solution
Dynamic ProgrammingTreeDepth-First Search+1 more
Hard
40.8% Accepted
21.9% Freq
ArrayDynamic ProgrammingStack+2 more
Medium
63.5% Accepted
21.3% Freq
ArrayDynamic Programming
Medium
51.9% Accepted
18.1% Freq
Solution
MathDynamic ProgrammingGame Theory
Medium
57.9% Accepted
17.6% Freq
ArrayDynamic ProgrammingStack+2 more
Medium
37.4% Accepted
17.5% Freq
ArrayHash TableDynamic Programming+1 more
Medium
68.4% Accepted
17.2% Freq
Hash TableStringDynamic Programming+1 more
Medium
26.0% Accepted
16.8% Freq
StringDynamic ProgrammingSliding Window+1 more
Hard
25.8% Accepted
13.8% Freq
ArrayBinary SearchDynamic Programming+1 more
Hard
78.1% Accepted
13.0% Freq
Solution
ArrayDynamic ProgrammingStack+2 more
Hard
39.6% Accepted
7.7% Freq
MathDynamic Programming
Hard
26.0% Accepted
6.9% Freq
Dynamic ProgrammingPrefix Sum
Hard
52.2% Accepted
6.2% Freq
ArrayDynamic Programming
Hard
47.0% Accepted
6.1% Freq
ArrayMathDynamic Programming+3 more
Medium
50.5% Accepted
Solution
ArrayDynamic ProgrammingMatrix
634. Find the Derangement of An Array
💰 Premium
Medium
41.7% Accepted
Solution
MathDynamic ProgrammingCombinatorics
750. Number Of Corner Rectangles
💰 Premium
Medium
67.9% Accepted
Solution
ArrayMathDynamic Programming+1 more
Hard
55.9% Accepted
Solution
StringDynamic ProgrammingPrefix Sum
Hard
59.4% Accepted
Solution
ArrayStringDynamic Programming
Hard
48.6% Accepted
Solution
MathDynamic ProgrammingMemoization
1066. Campus Bikes II
💰 Premium
Medium
55.8% Accepted
Solution
ArrayDynamic ProgrammingBacktracking+2 more
1182. Shortest Distance to Target Color
💰 Premium
Medium
56.4% Accepted
Solution
ArrayBinary SearchDynamic Programming
Hard
50.0% Accepted
Solution
Dynamic Programming
Hard
41.6% Accepted
ArrayDynamic ProgrammingMatrix
Hard
64.9% Accepted
Solution
MathDynamic ProgrammingCombinatorics
Hard
33.0% Accepted
ArrayMathDynamic Programming+2 more
Hard
44.5% Accepted
StringDynamic ProgrammingString Matching
Hard
49.2% Accepted
ArrayDynamic Programming
Hard
62.4% Accepted
Solution
ArrayDynamic Programming
Hard
60.6% Accepted
ArrayMathDynamic Programming+3 more
Medium
36.6% Accepted
ArrayHash TableBinary Search+2 more
1548. The Most Similar Path in a Graph
💰 Premium
Hard
59.3% Accepted
Solution
Dynamic ProgrammingGraph
Hard
53.8% Accepted
Solution
ArrayMathDivide and Conquer+7 more
Hard
64.9% Accepted
Solution
ArrayDynamic ProgrammingMemoization
Medium
35.3% Accepted
ArrayDynamic ProgrammingMatrix
Hard
73.2% Accepted
Solution
Dynamic ProgrammingBit ManipulationMemoization
Hard
66.8% Accepted
Dynamic ProgrammingBit ManipulationTree+2 more
Medium
45.2% Accepted
MathDynamic ProgrammingCombinatorics
Medium
79.1% Accepted
Solution
MathDynamic ProgrammingCombinatorics
Hard
40.4% Accepted
Dynamic ProgrammingBit ManipulationMemoization+1 more
Hard
40.6% Accepted
ArrayDynamic ProgrammingBit Manipulation+1 more
Hard
39.7% Accepted
ArrayDynamic ProgrammingSegment Tree+4 more
Medium
58.6% Accepted
Solution
ArrayMathDynamic Programming+1 more
Hard
49.6% Accepted
ArrayDynamic Programming
Hard
53.7% Accepted
ArrayMathDynamic Programming+2 more
Medium
65.3% Accepted
Solution
ArrayDynamic Programming
Hard
42.8% Accepted
Solution
ArrayDynamic Programming
Medium
48.1% Accepted
ArrayDynamic ProgrammingBacktracking
Medium
40.5% Accepted
Dynamic ProgrammingGraphTopological Sort+2 more
Hard
40.4% Accepted
ArrayDynamic ProgrammingBit Manipulation
Hard
57.9% Accepted
Solution
ArrayMathDynamic Programming+4 more
Hard
41.0% Accepted
ArrayDynamic ProgrammingBit Manipulation+2 more
Hard
58.3% Accepted
MathDynamic ProgrammingCombinatorics
Hard
49.9% Accepted
ArrayDynamic ProgrammingBit Manipulation+1 more
Hard
38.4% Accepted
ArrayDynamic Programming
Hard
51.2% Accepted
MathStringDynamic Programming+1 more
Hard
49.5% Accepted
MathDynamic ProgrammingTree+3 more
Medium
42.0% Accepted
Solution
ArrayDynamic ProgrammingMatrix
Medium
63.9% Accepted
ArrayDynamic ProgrammingBacktracking+2 more
Hard
52.4% Accepted
ArrayDynamic Programming
Medium
43.4% Accepted
ArrayDynamic Programming
Medium
40.1% Accepted
ArrayDynamic Programming
Hard
47.2% Accepted
Dynamic ProgrammingTreeDepth-First Search+1 more
Hard
57.4% Accepted
MathDynamic ProgrammingTree+2 more
Hard
33.6% Accepted
ArrayHash TableMath+4 more
Medium
50.9% Accepted
ArrayDynamic Programming
Hard
43.3% Accepted
StringDynamic Programming
Hard
66.1% Accepted
ArrayDynamic ProgrammingMatrix
Medium
59.9% Accepted
ArrayMathDynamic Programming
Hard
52.5% Accepted
ArrayDynamic Programming
Hard
48.7% Accepted
Solution
MathStringDynamic Programming
Medium
43.2% Accepted
ArrayHash TableMath+5 more
Hard
50.3% Accepted
ArrayDynamic ProgrammingBit Manipulation+1 more
Medium
49.5% Accepted
ArrayDynamic ProgrammingBit Manipulation+1 more
Medium
62.5% Accepted
MathDynamic Programming
Hard
60.4% Accepted
Solution
ArrayDynamic ProgrammingPrefix Sum
Hard
50.9% Accepted
Dynamic ProgrammingBit ManipulationGraph+1 more
Hard
65.5% Accepted
Dynamic ProgrammingGreedy
Hard
39.8% Accepted
ArrayDynamic ProgrammingMatrix
Hard
46.0% Accepted
Solution
ArrayDynamic Programming
Medium
67.7% Accepted
ArrayDynamic ProgrammingMatrix
Medium
27.7% Accepted
MathDynamic ProgrammingGreedy+1 more
Hard
52.3% Accepted
ArrayDynamic ProgrammingMemoization
Hard
56.6% Accepted
Dynamic ProgrammingTreeDepth-First Search+1 more
Hard
57.9% Accepted
Dynamic ProgrammingMemoization
Hard
58.0% Accepted
ArrayDynamic Programming
Hard
56.9% Accepted
Solution
MathDynamic ProgrammingCombinatorics+1 more
Hard
39.4% Accepted
Solution
ArrayDynamic ProgrammingStack+1 more
2361. Minimum Costs Using the Train Line
💰 Premium
Hard
77.7% Accepted
Solution
ArrayDynamic Programming
Medium
52.1% Accepted
Solution
ArrayDynamic Programming
Medium
56.1% Accepted
Dynamic ProgrammingTreeDepth-First Search
Medium
71.3% Accepted
Solution
ArrayMathDynamic Programming
Medium
36.5% Accepted
MathDynamic ProgrammingCombinatorics
2403. Minimum Time to Kill All Monsters
💰 Premium
Hard
57.1% Accepted
ArrayDynamic ProgrammingBit Manipulation+1 more
Hard
25.7% Accepted
ArrayDivide and ConquerDynamic Programming+4 more
Hard
35.3% Accepted
StringDynamic ProgrammingRolling Hash+2 more
Medium
64.6% Accepted
ArrayDynamic Programming
Medium
70.3% Accepted
ArrayMathDynamic Programming+2 more
Hard
58.9% Accepted
Solution
ArrayDynamic ProgrammingSorting
2464. Minimum Subarrays in a Valid Split
💰 Premium
Medium
64.6% Accepted
Solution
ArrayMathDynamic Programming+1 more
Hard
32.4% Accepted
StringDynamic ProgrammingPrefix Sum
Medium
62.4% Accepted
ArrayMathDynamic Programming
Medium
51.5% Accepted
ArrayDynamic ProgrammingMatrix
Medium
27.6% Accepted
ArrayDynamic ProgrammingDepth-First Search+2 more
Hard
32.4% Accepted
ArrayStringDynamic Programming+3 more
Hard
47.5% Accepted
ArrayHash TableDynamic Programming+2 more
Medium
57.5% Accepted
ArrayHash TableString+1 more
Hard
23.2% Accepted
ArrayDynamic ProgrammingStack+5 more
2638. Count the Number of K-Free Subsets
💰 Premium
Medium
47.0% Accepted
ArrayMathDynamic Programming+2 more
Medium
58.8% Accepted
Solution
ArrayDynamic ProgrammingMatrix
Hard
31.1% Accepted
ArrayHash TableBinary Search+5 more
Medium
29.0% Accepted
ArrayDynamic ProgrammingBit Manipulation+1 more
Medium
54.4% Accepted
MathDynamic ProgrammingGreedy+1 more
Medium
26.8% Accepted
ArrayStringDynamic Programming
Medium
34.4% Accepted
ArrayMathDynamic Programming
Medium
53.5% Accepted
Hash TableStringDynamic Programming+1 more
Medium
32.0% Accepted
ArrayDynamic Programming
Medium
37.1% Accepted
ArrayDynamic Programming
Hard
27.0% Accepted
StringDynamic Programming
Hard
26.4% Accepted
ArrayDynamic ProgrammingSorting
Medium
34.2% Accepted
ArrayDynamic ProgrammingGreedy
Medium
42.5% Accepted
ArrayBinary SearchDynamic Programming
Hard
20.7% Accepted
MathDynamic Programming
Hard
29.8% Accepted
ArrayDynamic ProgrammingBit Manipulation
Hard
29.8% Accepted
Dynamic ProgrammingGraphMemoization
Medium
40.5% Accepted
ArrayDynamic ProgrammingGreedy
Medium
27.5% Accepted
StringDynamic Programming
Hard
21.3% Accepted
ArrayHash TableDynamic Programming+1 more
Hard
35.5% Accepted
Two PointersStringDynamic Programming
Hard
58.4% Accepted
MathDynamic ProgrammingCombinatorics
Medium
38.7% Accepted
ArrayDynamic Programming
Hard
21.5% Accepted
ArrayDynamic ProgrammingBinary Indexed Tree+1 more
Medium
46.9% Accepted
Dynamic ProgrammingTreeDepth-First Search
Hard
25.3% Accepted
ArrayBinary SearchDynamic Programming+2 more
Medium
56.4% Accepted
MathDynamic ProgrammingCombinatorics
Medium
47.9% Accepted
ArrayDynamic ProgrammingQueue+2 more
Hard
46.2% Accepted
ArrayDynamic ProgrammingQueue+2 more
Hard
36.9% Accepted
Dynamic ProgrammingTreeDepth-First Search+2 more
Hard
26.0% Accepted
ArrayStringDynamic Programming+3 more
Medium
80.2% Accepted
MathDynamic ProgrammingNumber Theory
Medium
72.1% Accepted
ArrayMathDynamic Programming+4 more
Hard
46.4% Accepted
Solution
MathStringDynamic Programming
3004. Maximum Subtree of the Same Color
💰 Premium
Medium
57.6% Accepted
ArrayDynamic ProgrammingTree+1 more
Medium
37.9% Accepted
MathBinary SearchDynamic Programming+1 more
Hard
43.9% Accepted
ArrayDynamic Programming
Medium
33.6% Accepted
ArrayDynamic ProgrammingMemoization
Hard
33.2% Accepted
ArrayDynamic ProgrammingSorting
Hard
24.1% Accepted
ArrayDynamic ProgrammingSorting
Hard
27.4% Accepted
ArrayBinary SearchDynamic Programming+3 more
Medium
26.7% Accepted
Dynamic ProgrammingPrefix Sum
Hard
26.6% Accepted
Dynamic ProgrammingPrefix Sum
Medium
55.6% Accepted
StringBinary SearchDynamic Programming+2 more
Medium
47.3% Accepted
ArrayDynamic ProgrammingMatrix
Medium
32.1% Accepted
ArrayHash TableDynamic Programming
Hard
24.4% Accepted
ArrayHash TableDynamic Programming
Hard
21.1% Accepted
ArrayDynamic ProgrammingBit Manipulation
Medium
64.6% Accepted
ArrayDynamic ProgrammingGreedy
Medium
29.2% Accepted
ArrayDynamic Programming
3205. Maximum Array Hopping Score I
💰 Premium
Medium
77.4% Accepted
ArrayDynamic ProgrammingStack+2 more
Hard
19.0% Accepted
ArrayStringDynamic Programming+1 more
Medium
58.1% Accepted
ArrayDynamic ProgrammingGreedy+1 more
Hard
25.8% Accepted
ArrayDynamic ProgrammingMatrix+1 more
Hard
26.5% Accepted
Dynamic ProgrammingTreeDepth-First Search+1 more
Medium
47.4% Accepted
ArrayMathDynamic Programming+1 more
Hard
23.7% Accepted
ArrayMathDynamic Programming+2 more
Hard
15.6% Accepted
ArrayDynamic ProgrammingMatrix+1 more
Hard
26.6% Accepted
ArrayDynamic ProgrammingMatrix+1 more
Medium
49.7% Accepted
ArrayDynamic Programming
3284. Sum of Consecutive Subarrays
💰 Premium
Medium
42.2% Accepted
ArrayTwo PointersDynamic Programming
Hard
19.7% Accepted
ArrayDynamic ProgrammingBit Manipulation
Medium
41.1% Accepted
ArrayDynamic Programming
Hard
18.8% Accepted
ArrayStringBinary Search+5 more
3299. Sum of Consecutive Subsequences
💰 Premium
Hard
41.7% Accepted
ArrayHash TableDynamic Programming
Medium
21.0% Accepted
Two PointersStringDynamic Programming+1 more
Hard
34.1% Accepted
MathDynamic ProgrammingCombinatorics
Hard
31.6% Accepted
StringDynamic Programming
Medium
47.1% Accepted
ArrayDynamic ProgrammingMatrix
Hard
30.4% Accepted
ArrayMathDynamic Programming+1 more
Hard
26.4% Accepted
MathStringDynamic Programming+1 more
Medium
16.4% Accepted
ArrayDynamic Programming
Hard
25.6% Accepted
Hash TableStringDynamic Programming+2 more
Medium
40.2% Accepted
ArrayDynamic ProgrammingBit Manipulation+1 more
Medium
15.4% Accepted
ArrayDynamic Programming
Hard
30.5% Accepted
ArrayBinary SearchDynamic Programming+1 more
Medium
29.1% Accepted
ArrayDynamic ProgrammingMatrix
Hard
26.2% Accepted
ArrayMathDynamic Programming+3 more
Hard
21.6% Accepted
StringDynamic Programming
Medium
18.2% Accepted
Hash TableStringDynamic Programming+2 more
Medium
25.3% Accepted
ArrayDynamic ProgrammingPrefix Sum
Medium
30.5% Accepted
ArrayDynamic Programming
Hard
26.5% Accepted
ArrayDynamic ProgrammingPrefix Sum
Medium
43.4% Accepted
Two PointersStringDynamic Programming+1 more
Hard
16.3% Accepted
Two PointersStringDynamic Programming
Hard
26.5% Accepted
ArrayHash TableMath+3 more
Hard
11.3% Accepted
ArrayHash TableDynamic Programming
Hard
37.9% Accepted
MathStringDynamic Programming
Hard
29.1% Accepted
ArrayDynamic ProgrammingBit Manipulation+3 more
Hard
29.8% Accepted
ArrayDynamic ProgrammingBit Manipulation+1 more
Medium
18.8% Accepted
Hash TableDynamic ProgrammingGraph
Hard
44.0% Accepted
ArrayDynamic ProgrammingTree+1 more
Hard
59.8% Accepted
ArrayMathDynamic Programming+3 more
Medium
44.2% Accepted
ArrayDynamic ProgrammingMatrix
Medium
59.4% Accepted
ArrayMathDynamic Programming+1 more
Hard
20.7% Accepted
MathDynamic ProgrammingBit Manipulation+1 more
Medium
12.6% Accepted
ArrayDynamic ProgrammingBit Manipulation
Medium
42.3% Accepted
ArrayDynamic Programming
Page 1 of 51
String (589 questions)
Medium
37.8% Accepted
96.9% Freq
Solution
Hash TableStringSliding Window
Medium
36.7% Accepted
96.3% Freq
Solution
Two PointersStringDynamic Programming
Medium
71.1% Accepted
95.7% Freq
Solution
StringStack
Medium
71.7% Accepted
90.9% Freq
Solution
ArrayHash TableString+1 more
Medium
46.3% Accepted
90.7% Freq
Solution
MathStringStack
Hard
58.1% Accepted
90.5% Freq
Solution
Hash TableMathString+2 more
Hard
65.2% Accepted
90.1% Freq
Solution
StringRecursion
Hard
49.5% Accepted
89.7% Freq
Solution
ArrayStringSimulation
1152. Analyze User Website Visit Pattern
💰 Premium
Medium
44.2% Accepted
89.0% Freq
Solution
ArrayHash TableString+1 more
Medium
77.9% Accepted
88.8% Freq
Solution
StringDynamic ProgrammingBacktracking
Hard
45.8% Accepted
87.6% Freq
Solution
StringDynamic ProgrammingPrefix Sum
Medium
56.6% Accepted
87.4% Freq
Solution
Hash TableStringGreedy+3 more
588. Design In-Memory File System
💰 Premium
Hard
48.3% Accepted
85.8% Freq
Solution
Hash TableStringDesign+2 more
Medium
51.4% Accepted
85.6% Freq
Solution
ArrayStringDynamic Programming
Medium
66.5% Accepted
84.6% Freq
Solution
StringStackGreedy
Medium
61.8% Accepted
83.7% Freq
Solution
StringStackRecursion
Medium
42.0% Accepted
83.6% Freq
Solution
ArrayStringGreedy+1 more
Hard
46.3% Accepted
83.0% Freq
Solution
Hash TableStringSliding Window
Medium
45.7% Accepted
82.9% Freq
Solution
Hash TableMathString+2 more
Medium
58.3% Accepted
81.0% Freq
Solution
Hash TableStringSliding Window
Medium
59.0% Accepted
80.8% Freq
Solution
Two PointersString
Medium
49.6% Accepted
80.5% Freq
Solution
Hash TableStringBinary Search+1 more
Hard
46.2% Accepted
80.2% Freq
Solution
MathStringStack+1 more
Hard
29.9% Accepted
80.1% Freq
Solution
StringDynamic ProgrammingRecursion
Medium
30.1% Accepted
80.1% Freq
Solution
Hash TableMathString
Medium
46.2% Accepted
80.1% Freq
Solution
ArrayStringBacktracking+2 more
Medium
65.1% Accepted
79.8% Freq
Solution
ArrayStringBinary Search+3 more
Medium
61.5% Accepted
79.6% Freq
Solution
ArrayHash TableString
Hard
49.2% Accepted
79.5% Freq
Solution
MathStringDynamic Programming+1 more
Hard
34.7% Accepted
79.5% Freq
Solution
MathStringRecursion
Medium
64.8% Accepted
79.3% Freq
Solution
Hash TableStringBacktracking
Medium
54.1% Accepted
79.0% Freq
Solution
Hash TableMathString+1 more
Medium
59.6% Accepted
78.3% Freq
Solution
StringDynamic Programming
Medium
59.7% Accepted
78.1% Freq
Solution
ArrayHash TableString+5 more
1166. Design File System
💰 Premium
Medium
65.0% Accepted
77.8% Freq
Solution
Hash TableStringDesign+1 more
Medium
52.9% Accepted
77.6% Freq
Solution
StringDynamic ProgrammingGreedy+1 more
269. Alien Dictionary
💰 Premium
Hard
36.9% Accepted
77.2% Freq
Solution
ArrayStringDepth-First Search+3 more
Hard
44.1% Accepted
77.0% Freq
Solution
Hash TableStringBreadth-First Search
Hard
71.4% Accepted
77.0% Freq
Solution
StringBacktrackingGreedy+2 more
Hard
30.6% Accepted
77.0% Freq
StringGreedyString Matching
Hard
59.8% Accepted
76.9% Freq
Solution
StringTreeDepth-First Search+3 more
Hard
40.4% Accepted
76.8% Freq
StringDynamic Programming
642. Design Search Autocomplete System
💰 Premium
Hard
49.6% Accepted
76.8% Freq
Solution
StringDepth-First SearchDesign+4 more
Medium
67.2% Accepted
76.6% Freq
Solution
Hash TableStringGreedy+2 more
Medium
34.9% Accepted
76.6% Freq
Solution
MathTwo PointersString
Medium
35.9% Accepted
76.5% Freq
Solution
StringStackGreedy+1 more
Medium
52.8% Accepted
75.2% Freq
Solution
Hash TableStringSliding Window
1216. Valid Palindrome III
💰 Premium
Hard
49.1% Accepted
75.2% Freq
Solution
StringDynamic Programming
Hard
30.9% Accepted
75.2% Freq
Solution
StringBinary SearchSliding Window+3 more
Medium
31.5% Accepted
75.1% Freq
ArrayHash TableString+1 more
Medium
78.6% Accepted
74.8% Freq
Solution
ArrayStringDepth-First Search+1 more
Medium
60.4% Accepted
74.8% Freq
Solution
ArrayHash TableString+4 more
Medium
74.5% Accepted
74.7% Freq
Solution
StringStackGreedy
Hard
48.8% Accepted
74.2% Freq
Solution
StringSliding WindowEnumeration+1 more
Medium
72.2% Accepted
74.1% Freq
Solution
Two PointersStringDynamic Programming
Medium
73.1% Accepted
74.1% Freq
Solution
StringDynamic ProgrammingBacktracking
Medium
48.8% Accepted
73.7% Freq
Solution
ArrayHash TableString+3 more
Medium
72.2% Accepted
73.3% Freq
Solution
Hash TableStringSorting
Medium
45.7% Accepted
72.8% Freq
Solution
Two PointersString
Medium
53.6% Accepted
72.8% Freq
Solution
ArrayHash TableString+2 more
Medium
69.7% Accepted
72.7% Freq
Solution
Hash TableMathString
Hard
37.3% Accepted
72.6% Freq
Solution
StringDynamic ProgrammingStack
Medium
51.0% Accepted
72.5% Freq
Solution
Hash TableStringStack+2 more
Medium
54.2% Accepted
72.5% Freq
Solution
Two PointersString
Medium
60.4% Accepted
72.4% Freq
Solution
StringStack
Medium
56.7% Accepted
72.1% Freq
Solution
ArrayHash TableString+1 more
Medium
72.7% Accepted
72.1% Freq
Hash TableStringCounting
Medium
77.0% Accepted
71.8% Freq
Solution
MathStringBrainteaser+1 more
Hard
37.8% Accepted
71.3% Freq
Solution
ArrayStringBacktracking+2 more
Medium
44.4% Accepted
70.7% Freq
ArrayHash TableString+3 more
Hard
54.5% Accepted
70.6% Freq
Solution
ArrayHash TableString+4 more
Hard
31.8% Accepted
70.5% Freq
Solution
MathString
Medium
58.6% Accepted
70.3% Freq
Solution
StringDynamic Programming
249. Group Shifted Strings
💰 Premium
Medium
67.6% Accepted
70.3% Freq
Solution
ArrayHash TableString
Medium
52.8% Accepted
70.3% Freq
Solution
ArrayHash TableString+3 more
Medium
54.4% Accepted
69.7% Freq
Solution
StringBacktracking
Medium
39.5% Accepted
69.6% Freq
Solution
StringDynamic ProgrammingStack+1 more
Hard
15.0% Accepted
69.4% Freq
StringGreedyHeap (Priority Queue)
Medium
56.4% Accepted
69.2% Freq
Solution
StringTreeDepth-First Search+1 more
Hard
42.4% Accepted
69.2% Freq
Solution
MathStringBacktracking
Hard
78.0% Accepted
69.0% Freq
Solution
ArrayHash TableString+2 more
Medium
52.1% Accepted
69.0% Freq
Solution
StringStackGreedy+1 more
Medium
39.8% Accepted
68.9% Freq
Two PointersStringBinary Search+3 more
Medium
74.7% Accepted
68.5% Freq
Solution
ArrayHash TableString+2 more
Hard
69.8% Accepted
68.4% Freq
Solution
StringStackRecursion
Medium
63.6% Accepted
68.0% Freq
Solution
ArrayStringDepth-First Search+4 more
Hard
30.8% Accepted
67.9% Freq
Solution
StringDynamic ProgrammingGreedy+1 more
Medium
64.7% Accepted
67.9% Freq
Solution
StringDynamic Programming
Hard
49.6% Accepted
67.8% Freq
Solution
ArrayStringDynamic Programming+3 more
536. Construct Binary Tree from String
💰 Premium
Medium
58.6% Accepted
67.8% Freq
Solution
StringStackTree+2 more
Medium
39.8% Accepted
67.7% Freq
Hash TableStringCounting
Hard
49.5% Accepted
67.7% Freq
Solution
StringBacktrackingBreadth-First Search
Medium
83.4% Accepted
67.6% Freq
Solution
StringSorting
Medium
67.6% Accepted
67.5% Freq
Solution
ArrayHash TableString
Hard
65.0% Accepted
67.4% Freq
Solution
Hash TableStringStack+1 more
Medium
47.9% Accepted
67.3% Freq
Solution
Hash TableTwo PointersString+1 more
Medium
60.9% Accepted
66.9% Freq
Solution
ArrayHash TableString+1 more
Medium
74.2% Accepted
66.4% Freq
Solution
Hash TableStringDesign
Medium
49.7% Accepted
66.4% Freq
Solution
Hash TableStringSliding Window
244. Shortest Word Distance II
💰 Premium
Medium
62.4% Accepted
66.3% Freq
Solution
ArrayHash TableTwo Pointers+2 more
Medium
74.8% Accepted
66.3% Freq
Solution
Hash TableStringSorting+3 more
Medium
82.3% Accepted
66.1% Freq
Solution
Hash TableStringCounting
Medium
62.5% Accepted
66.0% Freq
Solution
Hash TableStringStack+1 more
Medium
56.4% Accepted
66.0% Freq
Solution
MathStringSimulation
Hard
48.7% Accepted
66.0% Freq
Linked ListStringStack+3 more
Medium
46.0% Accepted
65.8% Freq
ArrayHash TableString+1 more
Hard
27.3% Accepted
65.5% Freq
Solution
Hash TableStringBacktracking+1 more
Medium
50.6% Accepted
65.5% Freq
Solution
ArrayHash TableString+4 more
Medium
60.0% Accepted
65.4% Freq
Solution
ArrayHash TableString+4 more
Hard
41.3% Accepted
65.2% Freq
Solution
StringRolling HashString Matching+1 more
631. Design Excel Sum Formula
💰 Premium
Hard
40.5% Accepted
64.8% Freq
Solution
ArrayHash TableString+4 more
Medium
56.5% Accepted
64.5% Freq
Solution
ArrayHash TableString+2 more
Hard
53.2% Accepted
64.3% Freq
Solution
Hash TableStringStack+1 more
Hard
30.7% Accepted
64.1% Freq
StringDynamic ProgrammingStack+2 more
Medium
62.5% Accepted
64.0% Freq
Solution
ArrayHash TableTwo Pointers+3 more
Medium
62.5% Accepted
64.0% Freq
Solution
ArrayMathString+1 more
Medium
78.1% Accepted
63.4% Freq
Solution
Two PointersStringStack+1 more
Hard
16.2% Accepted
63.3% Freq
StringSimulation
Medium
37.2% Accepted
62.6% Freq
Solution
StringDynamic Programming
Medium
43.0% Accepted
62.6% Freq
Solution
MathStringSimulation
Hard
36.0% Accepted
62.5% Freq
Solution
StringDynamic Programming
Hard
33.5% Accepted
62.5% Freq
Solution
Hash TableStringSliding Window
Hard
50.9% Accepted
62.4% Freq
Solution
StringDynamic Programming
616. Add Bold Tag in String
💰 Premium
Medium
51.2% Accepted
62.3% Freq
Solution
ArrayHash TableString+2 more
Medium
71.7% Accepted
62.0% Freq
StringStack
Medium
52.2% Accepted
62.0% Freq
Solution
Hash TableStringBit Manipulation+3 more
Medium
71.0% Accepted
61.3% Freq
Solution
Hash TableStringBit Manipulation+1 more
Medium
37.7% Accepted
61.2% Freq
Solution
StringString Matching
Medium
40.9% Accepted
60.9% Freq
Solution
Two PointersStringEnumeration
Medium
68.7% Accepted
60.7% Freq
Solution
Hash TableStringDesign+1 more
Hard
39.7% Accepted
60.5% Freq
Solution
MathStringEnumeration
271. Encode and Decode Strings
💰 Premium
Medium
50.5% Accepted
60.1% Freq
Solution
ArrayStringDesign
Medium
47.7% Accepted
60.1% Freq
Solution
StringDepth-First SearchDesign+1 more
Medium
45.7% Accepted
60.1% Freq
Solution
Hash TableStringDivide and Conquer+1 more
Medium
45.0% Accepted
60.0% Freq
Solution
StringStackGreedy
Medium
47.5% Accepted
60.0% Freq
StringDynamic ProgrammingGreedy
Hard
68.4% Accepted
59.8% Freq
Solution
StringTreeDepth-First Search+1 more
Medium
66.3% Accepted
59.8% Freq
Solution
MathStringSimulation
Hard
56.8% Accepted
59.7% Freq
Solution
ArrayStringDynamic Programming
727. Minimum Window Subsequence
💰 Premium
Hard
43.7% Accepted
59.5% Freq
Solution
StringDynamic ProgrammingSliding Window
Medium
39.5% Accepted
59.5% Freq
Hash TableStringDynamic Programming+1 more
Medium
51.8% Accepted
59.2% Freq
Solution
Hash TableStringCounting
Hard
53.2% Accepted
58.8% Freq
Solution
Hash TableStringDynamic Programming
Medium
42.9% Accepted
58.8% Freq
Solution
StringDynamic Programming
Medium
32.0% Accepted
58.6% Freq
ArrayString
247. Strobogrammatic Number II
💰 Premium
Medium
53.4% Accepted
58.5% Freq
Solution
ArrayStringRecursion
Hard
42.2% Accepted
58.3% Freq
StringBinary SearchEnumeration
635. Design Log Storage System
💰 Premium
Medium
59.2% Accepted
58.2% Freq
Solution
Hash TableStringDesign+1 more
2950. Number of Divisible Substrings
💰 Premium
Medium
73.8% Accepted
58.2% Freq
Hash TableStringCounting+1 more
Medium
56.0% Accepted
58.0% Freq
Solution
Hash TableStringBreadth-First Search
Medium
81.7% Accepted
58.0% Freq
Solution
Hash TableTwo PointersString+1 more
Medium
86.5% Accepted
57.9% Freq
Solution
Hash TableStringDesign+1 more
Medium
53.9% Accepted
57.8% Freq
Hash TableStringSliding Window
Medium
45.8% Accepted
57.4% Freq
Solution
ArrayStringPrefix Sum
Hard
34.7% Accepted
57.2% Freq
Two PointersString
Hard
61.6% Accepted
57.2% Freq
Solution
StringDynamic Programming
Medium
64.7% Accepted
57.1% Freq
StringTrieRolling Hash+2 more
Medium
72.8% Accepted
56.7% Freq
Solution
MathStringDynamic Programming+2 more
Medium
61.7% Accepted
56.4% Freq
Solution
StringDynamic Programming
Medium
47.0% Accepted
56.2% Freq
ArrayStringBinary Search+1 more
1804. Implement Trie II (Prefix Tree)
💰 Premium
Medium
63.1% Accepted
56.1% Freq
Solution
Hash TableStringDesign+1 more
Hard
52.4% Accepted
56.1% Freq
Two PointersStringGreedy+1 more
Hard
49.5% Accepted
55.8% Freq
Solution
Hash TableMathString+2 more
Medium
61.4% Accepted
55.8% Freq
Solution
Hash TableStringGreedy+1 more
Hard
73.3% Accepted
55.6% Freq
Solution
StringDynamic Programming
Hard
37.8% Accepted
55.2% Freq
StringDynamic Programming
Medium
75.5% Accepted
55.1% Freq
Solution
StringBacktrackingBit Manipulation
Hard
60.8% Accepted
55.0% Freq
Solution
StringDynamic Programming
Medium
56.8% Accepted
54.8% Freq
Solution
Two PointersString
Medium
17.7% Accepted
54.8% Freq
StringSliding WindowEnumeration
Medium
51.9% Accepted
54.8% Freq
Solution
Hash TableMathString
Medium
36.7% Accepted
54.7% Freq
Hash TableStringGreedy+1 more
Medium
73.3% Accepted
54.6% Freq
Solution
Hash TableStringSliding Window
Hard
34.8% Accepted
54.4% Freq
ArrayMathString+1 more
Medium
52.2% Accepted
53.9% Freq
Solution
ArrayTwo PointersString+1 more
Medium
62.6% Accepted
53.8% Freq
StringStackGreedy+1 more
Hard
53.9% Accepted
53.7% Freq
Solution
ArrayStringTree+3 more
Medium
51.1% Accepted
53.6% Freq
StringSliding Window
358. Rearrange String k Distance Apart
💰 Premium
Hard
39.4% Accepted
53.5% Freq
Solution
Hash TableStringGreedy+3 more
Hard
20.7% Accepted
53.2% Freq
StringDynamic ProgrammingBit Manipulation+2 more
Hard
43.2% Accepted
52.8% Freq
Solution
StringDynamic Programming
Medium
63.0% Accepted
52.8% Freq
Solution
Two PointersStringDynamic Programming
Hard
47.1% Accepted
52.7% Freq
Solution
StringDynamic Programming
Hard
44.8% Accepted
52.7% Freq
Solution
ArrayStringDynamic Programming+2 more
Medium
52.5% Accepted
52.7% Freq
StringDynamic ProgrammingGreedy
Hard
18.2% Accepted
52.3% Freq
MathStringBreadth-First Search+2 more
1257. Smallest Common Region
💰 Premium
Medium
68.2% Accepted
52.1% Freq
Solution
ArrayHash TableString+3 more
Medium
49.4% Accepted
52.1% Freq
ArrayHash TableString+1 more
Medium
59.8% Accepted
52.0% Freq
ArrayHash TableString+2 more
Medium
78.3% Accepted
51.8% Freq
Solution
StringStackSimulation
Medium
81.1% Accepted
51.6% Freq
Solution
StringUnion Find
Medium
40.1% Accepted
51.6% Freq
StringSliding Window
Medium
90.1% Accepted
51.1% Freq
Solution
ArrayStringPrefix Sum
Hard
17.9% Accepted
50.9% Freq
ArrayStringBit Manipulation+3 more
Medium
29.7% Accepted
50.9% Freq
Hash TableStringDynamic Programming+1 more
Medium
56.9% Accepted
50.6% Freq
Solution
ArrayStringSorting
Hard
50.5% Accepted
50.6% Freq
StringRolling HashString Matching+1 more
Medium
37.7% Accepted
50.6% Freq
Solution
Two PointersString
Medium
52.0% Accepted
50.5% Freq
StringDynamic ProgrammingSimulation
Medium
43.8% Accepted
50.3% Freq
ArrayHash TableTwo Pointers+2 more
Hard
37.6% Accepted
50.3% Freq
ArrayHash TableString+2 more
Medium
65.6% Accepted
50.1% Freq
Solution
StringDynamic ProgrammingStack
Medium
76.9% Accepted
49.9% Freq
Solution
ArrayHash TableString
Medium
45.0% Accepted
49.8% Freq
ArrayHash TableString+2 more
Medium
76.1% Accepted
49.8% Freq
Solution
Hash TableStringSliding Window
Hard
25.7% Accepted
49.8% Freq
MathStringDynamic Programming+1 more
Hard
51.5% Accepted
49.0% Freq
Solution
ArrayStringDesign+2 more
Hard
42.5% Accepted
48.1% Freq
Two PointersStringDynamic Programming+1 more
Medium
61.4% Accepted
47.9% Freq
Solution
StringBit ManipulationSimulation
Hard
42.8% Accepted
47.9% Freq
ArrayHash TableString+1 more
Medium
65.5% Accepted
47.8% Freq
Solution
StringGreedyHeap (Priority Queue)
Medium
67.8% Accepted
47.8% Freq
Solution
ArrayStringPrefix Sum
1236. Web Crawler
💰 Premium
Medium
68.7% Accepted
47.7% Freq
Solution
StringDepth-First SearchBreadth-First Search+1 more
Medium
60.4% Accepted
47.6% Freq
Hash TableMathString+3 more
Hard
36.6% Accepted
47.3% Freq
Solution
ArrayHash TableString+1 more
Hard
52.2% Accepted
47.1% Freq
Solution
StringDynamic Programming
Medium
46.4% Accepted
47.1% Freq
ArrayTwo PointersString+1 more
Medium
49.4% Accepted
47.1% Freq
Hash TableMathString+1 more
Medium
69.3% Accepted
47.0% Freq
Solution
StringBinary SearchSliding Window+1 more
Hard
41.6% Accepted
46.6% Freq
StringDynamic ProgrammingGreedy
Medium
59.0% Accepted
46.4% Freq
Solution
StringTreeDepth-First Search+4 more
Medium
77.0% Accepted
46.3% Freq
Solution
ArrayHash TableString+1 more
Medium
57.2% Accepted
46.1% Freq
Solution
Hash TableStringDepth-First Search+2 more
Hard
55.8% Accepted
45.9% Freq
Solution
ArrayHash TableString+3 more
1087. Brace Expansion
💰 Premium
Medium
66.8% Accepted
45.9% Freq
Solution
StringBacktrackingStack+2 more
Medium
36.8% Accepted
45.5% Freq
Solution
StringStack
Medium
46.9% Accepted
45.5% Freq
ArrayHash TableString+1 more
Medium
56.0% Accepted
44.9% Freq
StringStackSimulation
Medium
51.1% Accepted
44.7% Freq
ArrayHash TableString+1 more
Medium
64.5% Accepted
44.5% Freq
ArrayTwo PointersString+2 more
Hard
83.3% Accepted
44.5% Freq
Solution
StringTreeDepth-First Search+1 more
Medium
10.9% Accepted
44.3% Freq
ArrayHash TableString+2 more
Medium
64.7% Accepted
44.0% Freq
Solution
StringDynamic Programming
439. Ternary Expression Parser
💰 Premium
Medium
62.3% Accepted
43.6% Freq
Solution
StringStackRecursion
Hard
59.0% Accepted
43.6% Freq
Two PointersStringDynamic Programming+3 more
Medium
75.2% Accepted
43.6% Freq
ArrayHash TableString+1 more
Medium
40.4% Accepted
43.6% Freq
StringSliding Window
Hard
11.7% Accepted
43.6% Freq
MathStringBacktracking+2 more
Medium
60.4% Accepted
43.6% Freq
ArrayStringDepth-First Search+2 more
737. Sentence Similarity II
💰 Premium
Medium
50.9% Accepted
43.3% Freq
Solution
ArrayHash TableString+3 more
Medium
38.2% Accepted
43.1% Freq
ArrayHash TableString
Medium
62.0% Accepted
43.1% Freq
StringDynamic ProgrammingBacktracking+2 more
Medium
43.9% Accepted
43.0% Freq
Hash TableStringSliding Window
Medium
64.9% Accepted
43.0% Freq
StringSimulation
Hard
31.5% Accepted
42.7% Freq
Solution
StringDynamic Programming
Medium
40.9% Accepted
42.4% Freq
ArrayHash TableString+2 more
Hard
25.5% Accepted
42.4% Freq
StringSliding WindowRolling Hash+1 more
Medium
46.5% Accepted
42.4% Freq
ArrayHash TableString+2 more
Hard
15.5% Accepted
42.4% Freq
StringDynamic Programming
Medium
79.4% Accepted
42.3% Freq
Solution
StringDepth-First SearchBreadth-First Search+1 more
1062. Longest Repeating Substring
💰 Premium
Medium
63.3% Accepted
42.0% Freq
Solution
StringBinary SearchDynamic Programming+3 more
Medium
51.0% Accepted
42.0% Freq
StringCounting
Medium
26.8% Accepted
42.0% Freq
StringDynamic ProgrammingGreedy+1 more
Hard
43.8% Accepted
41.8% Freq
Solution
StringDynamic Programming
Medium
66.1% Accepted
41.5% Freq
Solution
StringDynamic Programming
Hard
40.3% Accepted
41.5% Freq
Solution
Hash TableStringBreadth-First Search
Medium
72.1% Accepted
41.5% Freq
Hash TableStringDynamic Programming+1 more
Medium
46.6% Accepted
41.4% Freq
Solution
ArrayTwo PointersString
499. The Maze III
💰 Premium
Hard
51.0% Accepted
41.3% Freq
Solution
ArrayStringDepth-First Search+5 more
Medium
68.7% Accepted
41.3% Freq
ArrayHash TableString
Medium
53.8% Accepted
41.3% Freq
StringDynamic ProgrammingGreedy
Medium
38.7% Accepted
41.3% Freq
ArrayHash TableTwo Pointers+2 more
Medium
65.0% Accepted
41.0% Freq
MathStringGreedy
Medium
59.3% Accepted
40.9% Freq
Solution
StringBinary SearchSliding Window+1 more
Medium
71.8% Accepted
40.9% Freq
Solution
StringStack
Hard
50.4% Accepted
40.8% Freq
Solution
ArrayHash TableString+5 more
1055. Shortest Way to Form String
💰 Premium
Medium
61.4% Accepted
40.5% Freq
Solution
Two PointersStringBinary Search+1 more
Medium
56.8% Accepted
40.5% Freq
Solution
Hash TableStringSliding Window
Medium
67.8% Accepted
40.4% Freq
Solution
StringPrefix Sum
Medium
38.9% Accepted
40.3% Freq
StringGreedy
Hard
21.2% Accepted
40.3% Freq
StringDynamic ProgrammingSuffix Array
Hard
41.7% Accepted
40.3% Freq
StringDynamic Programming
Medium
47.2% Accepted
40.3% Freq
StringDynamic ProgrammingGreedy
Medium
50.6% Accepted
39.6% Freq
StringDynamic ProgrammingPrefix Sum
Medium
56.8% Accepted
39.4% Freq
Solution
Hash TableStringBit Manipulation+2 more
Hard
52.4% Accepted
39.4% Freq
StringDynamic Programming
Medium
60.2% Accepted
39.4% Freq
Hash TableStringCounting
Medium
49.4% Accepted
39.3% Freq
Solution
ArrayStringDynamic Programming
Medium
78.6% Accepted
39.2% Freq
Solution
StringStackSimulation
Medium
68.5% Accepted
39.0% Freq
Solution
ArrayHash TableString+1 more
Hard
61.9% Accepted
39.0% Freq
StringDynamic Programming
Medium
60.8% Accepted
39.0% Freq
Solution
ArrayStringBit Manipulation
Medium
51.3% Accepted
38.9% Freq
Solution
ArrayStringUnion Find+1 more
Medium
57.2% Accepted
38.7% Freq
Solution
ArrayHash TableString+2 more
Hard
62.0% Accepted
38.5% Freq
Solution
StringStackGreedy+1 more
Hard
15.8% Accepted
38.5% Freq
MathStringDynamic Programming+2 more
Medium
37.0% Accepted
38.5% Freq
StringDynamic Programming
Medium
70.1% Accepted
38.3% Freq
Solution
StringRecursionSimulation
Medium
53.4% Accepted
37.8% Freq
Solution
ArrayStringPrefix Sum
Medium
34.2% Accepted
37.8% Freq
MathString
Hard
38.1% Accepted
37.8% Freq
StringDynamic ProgrammingPrefix Sum
Hard
18.6% Accepted
37.8% Freq
ArrayHash TableString+3 more
Medium
48.8% Accepted
37.7% Freq
StringStackDepth-First Search
Hard
32.7% Accepted
37.6% Freq
Solution
StringDynamic Programming
Medium
54.2% Accepted
37.4% Freq
Solution
Hash TableStringSorting+1 more
Medium
54.1% Accepted
37.0% Freq
ArrayHash TableString+2 more
Medium
67.0% Accepted
37.0% Freq
ArrayStringSimulation
Medium
75.0% Accepted
37.0% Freq
ArrayHash TableString+1 more
Medium
61.1% Accepted
36.6% Freq
Solution
StringSliding Window
Hard
44.0% Accepted
36.4% Freq
Solution
ArrayMathString+2 more
Hard
56.1% Accepted
36.4% Freq
Hash TableStringDynamic Programming
Hard
38.0% Accepted
36.4% Freq
ArrayHash TableString+1 more
Medium
66.5% Accepted
36.1% Freq
StringSorting
Medium
60.7% Accepted
35.7% Freq
Solution
ArrayHash TableString+1 more
Medium
42.8% Accepted
35.5% Freq
Hash TableString
Hard
13.5% Accepted
35.5% Freq
MathStringCombinatorics+1 more
Hard
81.6% Accepted
35.4% Freq
Solution
ArrayHash TableString+5 more
Medium
24.9% Accepted
35.4% Freq
Hash TableStringGreedy+2 more
Medium
45.6% Accepted
35.1% Freq
Hash TableStringBinary Search+3 more
Hard
37.7% Accepted
35.1% Freq
MathStringDynamic Programming
Medium
42.0% Accepted
34.3% Freq
StringDynamic Programming
Medium
44.8% Accepted
34.0% Freq
Solution
StringGreedy
Medium
78.3% Accepted
34.0% Freq
Solution
Hash TableStringGreedy
Medium
83.6% Accepted
33.9% Freq
Solution
Hash TableStringBacktracking+1 more
Medium
57.3% Accepted
33.6% Freq
Solution
MathString
Hard
59.3% Accepted
33.5% Freq
StringDynamic Programming
Medium
68.5% Accepted
33.3% Freq
Solution
Hash TableStringBacktracking
Medium
76.4% Accepted
33.0% Freq
Solution
String
Hard
45.0% Accepted
32.6% Freq
StringDynamic Programming
Medium
65.6% Accepted
32.1% Freq
Solution
Two PointersString
Medium
54.0% Accepted
31.8% Freq
Solution
ArrayHash TableString+2 more
Medium
48.5% Accepted
31.7% Freq
Solution
ArrayTwo PointersString
Hard
54.0% Accepted
31.4% Freq
Solution
StringDynamic ProgrammingBit Manipulation+1 more
Medium
56.0% Accepted
31.0% Freq
Solution
Two PointersString
Hard
40.9% Accepted
30.9% Freq
StringGreedy
Medium
46.7% Accepted
30.9% Freq
Solution
Hash TableStringDynamic Programming
Medium
55.0% Accepted
30.3% Freq
MathStringDynamic Programming+1 more
Medium
60.0% Accepted
30.1% Freq
String
Medium
54.4% Accepted
30.0% Freq
Solution
ArrayStringBacktracking+1 more
Medium
63.2% Accepted
29.8% Freq
StringSortingCounting Sort
186. Reverse Words in a String II
💰 Premium
Medium
56.4% Accepted
29.4% Freq
Solution
Two PointersString
Medium
58.2% Accepted
29.4% Freq
Hash TableStringBit Manipulation+1 more
Medium
44.8% Accepted
29.4% Freq
StringStackSimulation
Hard
27.7% Accepted
29.4% Freq
ArrayStringTrie+3 more
Medium
52.9% Accepted
29.4% Freq
Hash TableStringSliding Window+1 more
Medium
20.9% Accepted
29.3% Freq
ArrayStringBinary Search+6 more
Medium
76.2% Accepted
29.1% Freq
ArrayHash TableString+2 more
Medium
50.6% Accepted
28.8% Freq
StringDynamic ProgrammingStack+1 more
Medium
31.8% Accepted
28.6% Freq
StringStackSimulation
Medium
40.8% Accepted
28.5% Freq
StringDynamic ProgrammingSliding Window
Medium
75.0% Accepted
28.5% Freq
Solution
Hash TableStringCounting
Hard
60.8% Accepted
27.6% Freq
Solution
ArrayStringTrie+1 more
Hard
59.1% Accepted
27.3% Freq
Solution
StringDynamic ProgrammingDepth-First Search+1 more
Medium
55.8% Accepted
27.3% Freq
Solution
ArrayHash TableString
Medium
70.9% Accepted
27.3% Freq
Solution
Hash TableStringGreedy+2 more
Medium
52.7% Accepted
26.8% Freq
Two PointersStringGreedy
Hard
27.2% Accepted
26.2% Freq
Two PointersStringBinary Search+3 more
Medium
52.2% Accepted
24.9% Freq
Hash TableStringCounting+1 more
Medium
63.3% Accepted
24.6% Freq
Solution
ArrayStringDynamic Programming+1 more
Medium
87.8% Accepted
23.6% Freq
StringBacktrackingBit Manipulation
Medium
72.7% Accepted
23.2% Freq
Solution
MathStringSimulation
Medium
85.7% Accepted
23.2% Freq
Solution
StringBacktrackingStack+1 more
Hard
40.6% Accepted
23.0% Freq
Solution
ArrayHash TableString+2 more
Medium
85.1% Accepted
22.2% Freq
Solution
ArrayStringPrefix Sum
Medium
70.4% Accepted
21.3% Freq
Solution
StringTreeDepth-First Search+1 more
Medium
88.7% Accepted
21.0% Freq
Solution
StringGreedy
Medium
87.0% Accepted
20.1% Freq
Solution
ArrayMathString+1 more
Medium
45.8% Accepted
19.5% Freq
Solution
MathStringSimulation
Medium
71.7% Accepted
19.5% Freq
Solution
ArrayTwo PointersString+1 more
Medium
68.4% Accepted
17.2% Freq
Hash TableStringDynamic Programming+1 more
Medium
26.0% Accepted
16.8% Freq
StringDynamic ProgrammingSliding Window+1 more
Medium
17.8% Accepted
15.1% Freq
Hash TableStringPrefix Sum
Medium
60.0% Accepted
6.0% Freq
StringGreedy
267. Palindrome Permutation II
💰 Premium
Medium
42.2% Accepted
Solution
Hash TableStringBacktracking
320. Generalized Abbreviation
💰 Premium
Medium
60.2% Accepted
Solution
StringBacktrackingBit Manipulation
Medium
46.6% Accepted
Solution
StringStackTree+1 more
Medium
53.2% Accepted
Solution
Hash TableStringBacktracking+1 more
Medium
56.3% Accepted
Solution
StringBacktrackingEnumeration
Medium
40.0% Accepted
Solution
StringBacktracking
Medium
73.2% Accepted
Solution
ArrayHash TableString+1 more
Hard
55.9% Accepted
Solution
StringDynamic ProgrammingPrefix Sum
Medium
35.7% Accepted
Solution
ArrayStringBacktracking+1 more
Medium
36.0% Accepted
Solution
ArrayStringGreedy
Hard
59.4% Accepted
Solution
ArrayStringDynamic Programming
Medium
61.0% Accepted
Solution
StringBacktrackingTree+2 more
Medium
60.7% Accepted
StringStack
Medium
45.7% Accepted
ArrayMathString+2 more
Medium
76.4% Accepted
Solution
Hash TableStringSliding Window
Hard
34.7% Accepted
Solution
Hash TableStringGraph
Medium
63.0% Accepted
ArrayHash TableString+2 more
Hard
47.5% Accepted
Solution
ArrayHash TableString+2 more
Medium
72.6% Accepted
Solution
StringBacktrackingDesign+1 more
Medium
75.7% Accepted
Solution
Hash TableStringBit Manipulation+1 more
Hard
44.5% Accepted
StringDynamic ProgrammingString Matching
Medium
68.6% Accepted
Solution
Hash TableStringGreedy+1 more
Medium
85.2% Accepted
Solution
StringBacktracking
Medium
70.7% Accepted
StringGreedySorting
Medium
60.2% Accepted
ArrayHash TableString
Hard
40.6% Accepted
StringGreedyBinary Indexed Tree+1 more
Medium
53.4% Accepted
StringStackGreedy
Hard
45.9% Accepted
Hash TableStringBit Manipulation
1554. Strings Differ by One Character
💰 Premium
Medium
40.6% Accepted
Hash TableStringRolling Hash+1 more
Hard
50.8% Accepted
StringGreedySorting
Hard
62.6% Accepted
StringStackTree+1 more
Medium
31.9% Accepted
Two PointersString
Medium
61.6% Accepted
ArrayStringBinary Search+1 more
Medium
67.3% Accepted
Solution
StringGreedy
Medium
37.5% Accepted
Hash TableStringCounting+1 more
Medium
64.0% Accepted
Hash TableStringGreedy
Hard
50.6% Accepted
MathStringCombinatorics
Medium
37.2% Accepted
StringBacktrackingEnumeration
Medium
71.7% Accepted
Two PointersStringGreedy
1858. Longest Word With All Prefixes
💰 Premium
Medium
71.9% Accepted
Solution
ArrayStringDepth-First Search+1 more
Medium
43.7% Accepted
StringGreedy
Hard
51.2% Accepted
MathStringDynamic Programming+1 more
Medium
66.6% Accepted
Solution
Hash TableStringBit Manipulation+1 more
Medium
37.5% Accepted
ArrayStringGreedy
Hard
30.5% Accepted
StringRolling HashHash Function
Medium
79.4% Accepted
Solution
ArrayHash TableString+1 more
Medium
47.3% Accepted
ArrayStringDivide and Conquer+3 more
Hard
33.6% Accepted
ArrayHash TableMath+4 more
Hard
39.3% Accepted
StringStackGreedy+1 more
Medium
62.9% Accepted
Solution
MathStringGreedy+1 more
Hard
48.4% Accepted
ArrayStringBacktracking+1 more
Hard
43.3% Accepted
StringDynamic Programming
2067. Number of Equal Count Substrings
💰 Premium
Medium
44.9% Accepted
Hash TableStringSliding Window+1 more
Medium
74.3% Accepted
Solution
Hash TableMathString+2 more
Medium
81.8% Accepted
StringSimulation
Medium
43.8% Accepted
ArrayHash TableString+2 more
Hard
48.7% Accepted
Solution
MathStringDynamic Programming
Medium
64.1% Accepted
Solution
Hash TableStringRolling Hash+2 more
Medium
73.0% Accepted
Hash TableStringCounting
Medium
35.6% Accepted
StringGreedyPrefix Sum
Hard
33.8% Accepted
ArrayStringSegment Tree+1 more
Hard
43.3% Accepted
StringBinary SearchRolling Hash+3 more
Medium
68.1% Accepted
StringEnumeration
Medium
59.0% Accepted
ArrayHash TableString+1 more
Medium
46.5% Accepted
ArrayStringDivide and Conquer+4 more
Hard
35.3% Accepted
StringDynamic ProgrammingRolling Hash+2 more
Medium
63.6% Accepted
MathString
Hard
32.4% Accepted
StringDynamic ProgrammingPrefix Sum
Medium
72.9% Accepted
Solution
Two PointersStringGreedy
Medium
57.1% Accepted
Hash TableMathString+1 more
Medium
51.6% Accepted
Solution
Hash TableStringSliding Window
Medium
27.3% Accepted
Hash TableStringCounting
Medium
48.7% Accepted
Hash TableMathString+2 more
Medium
42.1% Accepted
StringBit Manipulation
Hard
32.8% Accepted
Two PointersStringBinary Search
Hard
32.4% Accepted
ArrayStringDynamic Programming+3 more
Medium
35.2% Accepted
ArrayMathString
Medium
57.5% Accepted
ArrayHash TableString+1 more
Hard
37.6% Accepted
StringGreedy
Medium
38.0% Accepted
StringSliding Window
Medium
33.8% Accepted
StringGreedy
Medium
26.8% Accepted
ArrayStringDynamic Programming
Medium
53.5% Accepted
Hash TableStringDynamic Programming+1 more
Medium
31.2% Accepted
StringGreedyEnumeration
Hard
27.0% Accepted
StringDynamic Programming
2802. Find The K-th Lucky Number
💰 Premium
Medium
76.2% Accepted
Solution
MathStringBit Manipulation
Medium
55.7% Accepted
Hash TableStringSorting
Hard
30.0% Accepted
Hash TableMathString+2 more
Medium
38.3% Accepted
MathStringGreedy+1 more
Medium
27.5% Accepted
StringDynamic Programming
Hard
35.5% Accepted
Two PointersStringDynamic Programming
Medium
64.0% Accepted
Solution
Two PointersStringGreedy
Hard
25.6% Accepted
Hash TableMathString+2 more
Hard
29.3% Accepted
Hash TableStringSliding Window
2955. Number of Same-End Substrings
💰 Premium
Medium
61.6% Accepted
Solution
ArrayHash TableString+2 more
Medium
57.4% Accepted
Solution
ArrayStringGraph+1 more
Hard
26.0% Accepted
ArrayStringDynamic Programming+3 more
Medium
61.9% Accepted
Solution
Hash TableStringBinary Search+2 more
Medium
38.8% Accepted
Solution
Hash TableStringBinary Search+2 more
Hard
23.8% Accepted
Hash TableStringPrefix Sum
Hard
46.4% Accepted
Solution
MathStringDynamic Programming
Medium
79.9% Accepted
Solution
Hash TableStringGreedy+2 more
Medium
41.9% Accepted
StringRolling HashString Matching+1 more
Hard
34.7% Accepted
StringRolling HashString Matching+1 more
Medium
64.4% Accepted
ArrayHash TableString+1 more
Medium
28.5% Accepted
Hash TableStringGreedy+3 more
Medium
49.5% Accepted
MathStringCounting
Hard
58.6% Accepted
Hash TableStringBinary Search+1 more
Medium
62.7% Accepted
StringGreedy
Medium
53.4% Accepted
StringGreedySorting
Medium
69.9% Accepted
StringGreedySorting
Medium
55.6% Accepted
StringBinary SearchDynamic Programming+2 more
Medium
38.7% Accepted
ArrayHash TableString+2 more
Hard
19.0% Accepted
ArrayStringDynamic Programming+1 more
Medium
53.3% Accepted
StringGreedyCounting
Hard
22.4% Accepted
ArrayStringBinary Search+2 more
Hard
38.3% Accepted
ArrayHash TableString+3 more
Hard
18.8% Accepted
ArrayStringBinary Search+5 more
Medium
42.1% Accepted
Hash TableStringSliding Window
Hard
55.6% Accepted
Hash TableStringSliding Window
Medium
21.0% Accepted
Two PointersStringDynamic Programming+1 more
Hard
14.5% Accepted
StringString Matching
Medium
41.5% Accepted
Hash TableStringSliding Window
Medium
40.6% Accepted
Solution
Hash TableStringSliding Window
Hard
31.6% Accepted
StringDynamic Programming
Medium
79.8% Accepted
StringSimulation
Medium
55.1% Accepted
Hash TableStringSliding Window
Hard
70.1% Accepted
Hash TableStringSliding Window
Hard
26.4% Accepted
MathStringDynamic Programming+1 more
Medium
53.1% Accepted
ArrayStringPrefix Sum
Medium
56.4% Accepted
Hash TableStringSorting
Hard
25.6% Accepted
Hash TableStringDynamic Programming+2 more
Hard
39.6% Accepted
StringBinary Search
Hard
49.0% Accepted
Two PointersString
Medium
34.8% Accepted
Hash TableStringStack+1 more
Hard
21.6% Accepted
StringDynamic Programming
Hard
22.6% Accepted
Two PointersStringBinary Search+1 more
Medium
18.2% Accepted
Hash TableStringDynamic Programming+2 more
Medium
67.8% Accepted
Two PointersString
Hard
22.1% Accepted
ArrayStringTrie
Medium
30.7% Accepted
StringEnumeration
Hard
17.0% Accepted
ArrayStringBinary Search+1 more
Medium
43.4% Accepted
Two PointersStringDynamic Programming+1 more
Hard
16.3% Accepted
Two PointersStringDynamic Programming
Hard
12.9% Accepted
Hash TableMathString+2 more
Hard
37.9% Accepted
MathStringDynamic Programming
Medium
56.5% Accepted
ArrayHash TableString+1 more
Medium
25.8% Accepted
ArrayStringRolling Hash+3 more
Medium
37.5% Accepted
Hash TableMathString+2 more
Medium
73.3% Accepted
ArrayString
Page 1 of 50
Hash Table (570 questions)
Medium
46.2% Accepted
98.8% Freq
Solution
Hash TableLinked ListDesign+1 more
Medium
37.8% Accepted
96.9% Freq
Solution
Hash TableStringSliding Window
Medium
46.2% Accepted
94.3% Freq
Solution
ArrayHash TablePrefix Sum
Medium
57.6% Accepted
93.0% Freq
Solution
Hash TableTreeDepth-First Search+3 more
Medium
66.1% Accepted
92.2% Freq
Solution
Hash TableMathSorting+2 more
Medium
71.7% Accepted
90.9% Freq
Solution
ArrayHash TableString+1 more
Hard
58.1% Accepted
90.5% Freq
Solution
Hash TableMathString+2 more
Medium
82.8% Accepted
89.4% Freq
Hash TableTwo PointersTree+1 more
1152. Analyze User Website Visit Pattern
💰 Premium
Medium
44.2% Accepted
89.0% Freq
Solution
ArrayHash TableString+1 more
Medium
56.6% Accepted
87.4% Freq
Solution
Hash TableStringGreedy+3 more
Medium
65.1% Accepted
86.8% Freq
Solution
ArrayHash TableDivide and Conquer+5 more
Hard
47.7% Accepted
86.6% Freq
Solution
Hash TableLinked ListDesign+1 more
Medium
47.0% Accepted
86.4% Freq
Solution
ArrayHash TableUnion Find
588. Design In-Memory File System
💰 Premium
Hard
48.3% Accepted
85.8% Freq
Solution
Hash TableStringDesign+2 more
Hard
47.0% Accepted
85.4% Freq
Solution
ArrayHash TableBreadth-First Search
Hard
44.0% Accepted
85.1% Freq
Solution
Hash TableLinked ListDesign+1 more
Hard
57.6% Accepted
83.3% Freq
Solution
ArrayHash TableGreedy+1 more
Medium
55.1% Accepted
83.2% Freq
Solution
ArrayHash TableMath+2 more
Hard
46.3% Accepted
83.0% Freq
Solution
Hash TableStringSliding Window
Medium
45.7% Accepted
82.9% Freq
Solution
Hash TableMathString+2 more
Medium
30.0% Accepted
82.9% Freq
ArrayHash TableDynamic Programming+3 more
348. Design Tic-Tac-Toe
💰 Premium
Medium
58.7% Accepted
82.6% Freq
Solution
ArrayHash TableDesign+2 more
Medium
58.3% Accepted
81.0% Freq
Solution
Hash TableStringSliding Window
Medium
40.4% Accepted
80.8% Freq
ArrayHash TableEnumeration
Hard
38.8% Accepted
80.6% Freq
Solution
ArrayHash TableSliding Window+1 more
Medium
49.6% Accepted
80.5% Freq
Solution
Hash TableStringBinary Search+1 more
Medium
61.8% Accepted
80.3% Freq
Solution
ArrayHash TableMatrix
1570. Dot Product of Two Sparse Vectors
💰 Premium
Medium
89.9% Accepted
80.3% Freq
Solution
ArrayHash TableTwo Pointers+1 more
Medium
64.0% Accepted
80.2% Freq
Solution
ArrayHash TableSliding Window
Medium
30.1% Accepted
80.1% Freq
Solution
Hash TableMathString
Medium
61.7% Accepted
79.6% Freq
Solution
Hash TableLinked List
Medium
61.5% Accepted
79.6% Freq
Solution
ArrayHash TableString
Medium
64.8% Accepted
79.3% Freq
Solution
Hash TableStringBacktracking
Medium
54.1% Accepted
79.0% Freq
Solution
Hash TableMathString+1 more
Hard
65.3% Accepted
78.7% Freq
Solution
ArrayHash TableBacktracking+1 more
Medium
63.5% Accepted
78.7% Freq
ArrayHash TableMatrix+1 more
Medium
35.1% Accepted
78.6% Freq
ArrayHash TableSliding Window+1 more
Medium
59.7% Accepted
78.1% Freq
Solution
ArrayHash TableString+5 more
1166. Design File System
💰 Premium
Medium
65.0% Accepted
77.8% Freq
Solution
Hash TableStringDesign+1 more
Medium
49.8% Accepted
77.7% Freq
Solution
ArrayHash TableSliding Window
Hard
52.6% Accepted
77.4% Freq
Solution
Hash TableTreeDepth-First Search+3 more
Hard
41.8% Accepted
77.2% Freq
Solution
ArrayHash Table
Hard
44.1% Accepted
77.0% Freq
Solution
Hash TableStringBreadth-First Search
Medium
67.2% Accepted
76.6% Freq
Solution
Hash TableStringGreedy+2 more
Medium
44.6% Accepted
75.4% Freq
ArrayHash TableTree+3 more
Medium
62.2% Accepted
75.3% Freq
Solution
ArrayHash TableGreedy+3 more
Medium
52.8% Accepted
75.2% Freq
Solution
Hash TableStringSliding Window
Medium
31.5% Accepted
75.1% Freq
ArrayHash TableString+1 more
Hard
48.9% Accepted
74.9% Freq
Solution
ArrayHash TableSorting+2 more
Medium
60.4% Accepted
74.8% Freq
Solution
ArrayHash TableString+4 more
311. Sparse Matrix Multiplication
💰 Premium
Medium
69.1% Accepted
74.7% Freq
Solution
ArrayHash TableMatrix
Hard
29.3% Accepted
74.0% Freq
ArrayHash TableBinary Search+1 more
Medium
67.1% Accepted
73.7% Freq
Solution
Hash TableTreeDepth-First Search+2 more
Medium
48.8% Accepted
73.7% Freq
Solution
ArrayHash TableString+3 more
Medium
72.2% Accepted
73.3% Freq
Solution
Hash TableStringSorting
Medium
53.6% Accepted
72.8% Freq
Solution
ArrayHash TableString+2 more
Medium
69.7% Accepted
72.7% Freq
Solution
Hash TableMathString
353. Design Snake Game
💰 Premium
Medium
39.9% Accepted
72.6% Freq
Solution
ArrayHash TableDesign+2 more
Medium
51.0% Accepted
72.5% Freq
Solution
Hash TableStringStack+2 more
Medium
49.4% Accepted
72.5% Freq
Solution
Hash TableDesignHeap (Priority Queue)+1 more
Medium
56.7% Accepted
72.1% Freq
Solution
ArrayHash TableString+1 more
Medium
72.7% Accepted
72.1% Freq
Hash TableStringCounting
Hard
67.0% Accepted
71.8% Freq
Solution
ArrayHash TableSliding Window+1 more
305. Number of Islands II
💰 Premium
Hard
40.3% Accepted
71.3% Freq
Solution
ArrayHash TableUnion Find
Medium
48.6% Accepted
71.2% Freq
Solution
Hash TableDesignHeap (Priority Queue)+2 more
Hard
57.4% Accepted
71.2% Freq
Solution
Hash TableDynamic ProgrammingGraph+3 more
Medium
55.8% Accepted
70.9% Freq
Solution
ArrayHash TableMath+1 more
Medium
61.7% Accepted
70.8% Freq
Solution
ArrayHash TableDesign
Medium
50.1% Accepted
70.8% Freq
Solution
ArrayHash TablePrefix Sum
Medium
70.2% Accepted
70.7% Freq
Solution
ArrayHash TableDesign+1 more
Medium
36.7% Accepted
70.7% Freq
Solution
ArrayHash TableBinary Search+1 more
Medium
44.4% Accepted
70.7% Freq
ArrayHash TableString+3 more
Hard
54.5% Accepted
70.6% Freq
Solution
ArrayHash TableString+4 more
249. Group Shifted Strings
💰 Premium
Medium
67.6% Accepted
70.3% Freq
Solution
ArrayHash TableString
Medium
52.8% Accepted
70.3% Freq
Solution
ArrayHash TableString+3 more
1740. Find Distance in a Binary Tree
💰 Premium
Medium
74.1% Accepted
70.1% Freq
Solution
Hash TableTreeDepth-First Search+2 more
Hard
78.0% Accepted
69.0% Freq
Solution
ArrayHash TableString+2 more
Medium
22.3% Accepted
68.9% Freq
ArrayHash TableBreadth-First Search+1 more
Medium
74.7% Accepted
68.5% Freq
Solution
ArrayHash TableString+2 more
Hard
46.8% Accepted
68.3% Freq
ArrayHash TablePrefix Sum
Medium
67.8% Accepted
68.3% Freq
Solution
ArrayHash TableGreedy
694. Number of Distinct Islands
💰 Premium
Medium
62.6% Accepted
68.0% Freq
Solution
Hash TableDepth-First SearchBreadth-First Search+2 more
Medium
65.9% Accepted
68.0% Freq
Solution
ArrayHash TableSliding Window
Hard
36.5% Accepted
67.8% Freq
ArrayHash TableMath+5 more
Medium
39.8% Accepted
67.7% Freq
Hash TableStringCounting
Medium
67.6% Accepted
67.5% Freq
Solution
ArrayHash TableString
Hard
65.0% Accepted
67.4% Freq
Solution
Hash TableStringStack+1 more
Medium
47.9% Accepted
67.3% Freq
Solution
Hash TableTwo PointersString+1 more
Medium
39.4% Accepted
67.0% Freq
Solution
ArrayHash TableBinary Search+3 more
Medium
60.9% Accepted
66.9% Freq
Solution
ArrayHash TableString+1 more
Medium
58.1% Accepted
66.8% Freq
Solution
ArrayHash TableMath+1 more
Medium
39.0% Accepted
66.7% Freq
Solution
ArrayHash TableBinary Search+2 more
Medium
74.2% Accepted
66.4% Freq
Solution
Hash TableStringDesign
Medium
49.7% Accepted
66.4% Freq
Solution
Hash TableStringSliding Window
244. Shortest Word Distance II
💰 Premium
Medium
62.4% Accepted
66.3% Freq
Solution
ArrayHash TableTwo Pointers+2 more
Medium
55.8% Accepted
66.3% Freq
Solution
ArrayHash TablePrefix Sum
Medium
74.8% Accepted
66.3% Freq
Solution
Hash TableStringSorting+3 more
Medium
82.3% Accepted
66.1% Freq
Solution
Hash TableStringCounting
Medium
74.9% Accepted
66.0% Freq
Solution
ArrayHash TableDepth-First Search
Medium
62.5% Accepted
66.0% Freq
Solution
Hash TableStringStack+1 more
Medium
49.2% Accepted
65.9% Freq
ArrayHash TableDesign+1 more
711. Number of Distinct Islands II
💰 Premium
Hard
55.1% Accepted
65.9% Freq
Solution
Hash TableDepth-First SearchBreadth-First Search+2 more
Medium
46.0% Accepted
65.8% Freq
ArrayHash TableString+1 more
Medium
45.8% Accepted
65.6% Freq
ArrayHash TableBinary Search+2 more
Hard
27.3% Accepted
65.5% Freq
Solution
Hash TableStringBacktracking+1 more
Medium
50.6% Accepted
65.5% Freq
Solution
ArrayHash TableString+4 more
Medium
60.0% Accepted
65.4% Freq
Solution
ArrayHash TableString+4 more
Medium
58.0% Accepted
65.2% Freq
Hash TableLinked ListDesign+1 more
Hard
42.7% Accepted
64.8% Freq
Solution
ArrayHash TableDepth-First Search+3 more
631. Design Excel Sum Formula
💰 Premium
Hard
40.5% Accepted
64.8% Freq
Solution
ArrayHash TableString+4 more
Medium
56.5% Accepted
64.5% Freq
Solution
ArrayHash TableString+2 more
Hard
53.2% Accepted
64.3% Freq
Solution
Hash TableStringStack+1 more
Medium
62.5% Accepted
64.0% Freq
Solution
ArrayHash TableTwo Pointers+3 more
Medium
63.4% Accepted
63.9% Freq
Solution
Hash TableTreeDepth-First Search+1 more
1429. First Unique Number
💰 Premium
Medium
56.5% Accepted
63.5% Freq
Solution
ArrayHash TableDesign+2 more
Medium
55.3% Accepted
63.4% Freq
Solution
ArrayHash TableSorting+1 more
Medium
62.5% Accepted
62.9% Freq
Solution
Hash TableDepth-First SearchUnion Find+1 more
Hard
69.9% Accepted
62.8% Freq
Solution
ArrayHash TableGreedy+3 more
Medium
67.4% Accepted
62.7% Freq
Solution
ArrayHash TableSliding Window+1 more
Medium
45.0% Accepted
62.6% Freq
Solution
ArrayHash TableTwo Pointers+4 more
Hard
33.5% Accepted
62.5% Freq
Solution
Hash TableStringSliding Window
Medium
63.8% Accepted
62.5% Freq
Solution
Hash TableDepth-First SearchBreadth-First Search+1 more
616. Add Bold Tag in String
💰 Premium
Medium
51.2% Accepted
62.3% Freq
Solution
ArrayHash TableString+2 more
Medium
56.0% Accepted
62.1% Freq
Solution
ArrayHash TableMath+1 more
Medium
52.2% Accepted
62.0% Freq
Solution
Hash TableStringBit Manipulation+3 more
Medium
37.2% Accepted
61.3% Freq
ArrayHash TableCounting
Medium
71.0% Accepted
61.3% Freq
Solution
Hash TableStringBit Manipulation+1 more
1244. Design A Leaderboard
💰 Premium
Medium
68.0% Accepted
61.1% Freq
Solution
Hash TableDesignSorting
Hard
36.1% Accepted
61.1% Freq
Solution
ArrayHash TableMath+2 more
Medium
25.9% Accepted
60.8% Freq
ArrayHash TableBit Manipulation+2 more
Medium
66.4% Accepted
60.8% Freq
Hash TableTreeDepth-First Search+1 more
Medium
68.7% Accepted
60.7% Freq
Solution
Hash TableStringDesign+1 more
Medium
53.3% Accepted
60.3% Freq
Solution
ArrayHash TableBit Manipulation+1 more
Medium
55.2% Accepted
60.3% Freq
Solution
ArrayHash TableMath+2 more
Medium
43.2% Accepted
60.3% Freq
ArrayHash TableGreedy+1 more
Medium
45.7% Accepted
60.1% Freq
Solution
Hash TableStringDivide and Conquer+1 more
Hard
29.7% Accepted
59.8% Freq
Solution
ArrayHash TableMath+1 more
Medium
39.5% Accepted
59.5% Freq
Hash TableStringDynamic Programming+1 more
Hard
37.0% Accepted
59.4% Freq
Hash TableBinary SearchTree+2 more
Medium
49.7% Accepted
59.3% Freq
Solution
ArrayHash TableBinary Search+1 more
Medium
67.8% Accepted
59.2% Freq
Solution
ArrayHash TableDivide and Conquer+2 more
Medium
51.8% Accepted
59.2% Freq
Solution
Hash TableStringCounting
Medium
44.6% Accepted
59.1% Freq
ArrayHash TableDepth-First Search+5 more
Medium
31.1% Accepted
59.1% Freq
Solution
ArrayHash TableMath+1 more
Hard
53.2% Accepted
58.8% Freq
Solution
Hash TableStringDynamic Programming
Medium
55.9% Accepted
58.6% Freq
ArrayHash TableMath+2 more
Medium
39.0% Accepted
58.6% Freq
Solution
ArrayHash TableMath+1 more
635. Design Log Storage System
💰 Premium
Medium
59.2% Accepted
58.2% Freq
Solution
Hash TableStringDesign+1 more
Medium
60.4% Accepted
58.2% Freq
Solution
Hash TableTreeDepth-First Search+1 more
2950. Number of Divisible Substrings
💰 Premium
Medium
73.8% Accepted
58.2% Freq
Hash TableStringCounting+1 more
Medium
56.0% Accepted
58.0% Freq
Solution
Hash TableStringBreadth-First Search
Hard
66.5% Accepted
58.0% Freq
Solution
Hash TableStackDesign+1 more
Medium
81.7% Accepted
58.0% Freq
Solution
Hash TableTwo PointersString+1 more
Medium
86.5% Accepted
57.9% Freq
Solution
Hash TableStringDesign+1 more
Medium
53.9% Accepted
57.8% Freq
Hash TableStringSliding Window
Medium
64.8% Accepted
57.7% Freq
Solution
Hash TableMathReservoir Sampling+1 more
Medium
43.6% Accepted
57.6% Freq
Hash TableLinked ListDesign+1 more
Medium
48.5% Accepted
57.3% Freq
Solution
ArrayHash TableMath+1 more
Medium
57.0% Accepted
56.1% Freq
Solution
ArrayHash TableDynamic Programming
Hard
50.8% Accepted
56.1% Freq
Solution
ArrayHash TableMath+4 more
1804. Implement Trie II (Prefix Tree)
💰 Premium
Medium
63.1% Accepted
56.1% Freq
Solution
Hash TableStringDesign+1 more
Medium
37.0% Accepted
56.1% Freq
ArrayHash TableBinary Search+1 more
Hard
49.5% Accepted
55.8% Freq
Solution
Hash TableMathString+2 more
Medium
61.4% Accepted
55.8% Freq
Solution
Hash TableStringGreedy+1 more
Medium
68.9% Accepted
55.5% Freq
Solution
ArrayHash TableTwo Pointers+1 more
Medium
49.4% Accepted
55.2% Freq
Solution
Hash TableMathDynamic Programming+1 more
Medium
45.2% Accepted
55.0% Freq
Solution
ArrayHash TableTwo Pointers+2 more
Hard
46.2% Accepted
55.0% Freq
Solution
ArrayHash TableBreadth-First Search
1506. Find Root of N-Ary Tree
💰 Premium
Medium
78.5% Accepted
55.0% Freq
Solution
Hash TableBit ManipulationTree+1 more
Medium
51.9% Accepted
54.8% Freq
Solution
Hash TableMathString
Medium
79.3% Accepted
54.7% Freq
Hash TableTreeDepth-First Search+1 more
Medium
36.7% Accepted
54.7% Freq
Hash TableStringGreedy+1 more
Medium
74.3% Accepted
54.7% Freq
Solution
ArrayHash TableMath+2 more
Medium
73.3% Accepted
54.6% Freq
Solution
Hash TableStringSliding Window
Medium
58.3% Accepted
54.4% Freq
Solution
ArrayHash TableSimulation
Medium
42.7% Accepted
54.2% Freq
Solution
ArrayHash TableSliding Window
Medium
64.7% Accepted
54.1% Freq
Solution
Hash TableTreeDepth-First Search+2 more
Medium
50.6% Accepted
53.9% Freq
ArrayHash TableSorting
Medium
62.2% Accepted
53.7% Freq
ArrayHash TableCounting
358. Rearrange String k Distance Apart
💰 Premium
Hard
39.4% Accepted
53.5% Freq
Solution
Hash TableStringGreedy+3 more
Medium
56.7% Accepted
53.4% Freq
Solution
ArrayHash TableTwo Pointers+1 more
Medium
77.6% Accepted
53.3% Freq
Solution
ArrayHash TableDepth-First Search+3 more
Medium
25.5% Accepted
52.8% Freq
ArrayHash TableStack+2 more
Medium
35.0% Accepted
52.7% Freq
ArrayHash TableGreedy+1 more
325. Maximum Size Subarray Sum Equals k
💰 Premium
Medium
50.7% Accepted
52.3% Freq
Solution
ArrayHash TablePrefix Sum
1257. Smallest Common Region
💰 Premium
Medium
68.2% Accepted
52.1% Freq
Solution
ArrayHash TableString+3 more
Medium
49.4% Accepted
52.1% Freq
ArrayHash TableString+1 more
Hard
15.2% Accepted
52.1% Freq
ArrayHash TableTree+2 more
Medium
54.9% Accepted
52.1% Freq
ArrayHash TableBinary Search+2 more
Medium
59.8% Accepted
52.0% Freq
ArrayHash TableString+2 more
Medium
53.0% Accepted
52.0% Freq
Solution
Hash TableLinked List
Medium
62.9% Accepted
51.7% Freq
Solution
Hash TableMathBacktracking+2 more
Medium
72.4% Accepted
51.6% Freq
Solution
ArrayHash TableTree+2 more
Medium
80.9% Accepted
51.6% Freq
Solution
Hash TableTreeDepth-First Search+2 more
Medium
63.6% Accepted
51.3% Freq
Solution
ArrayHash TableGreedy+2 more
Hard
57.5% Accepted
51.2% Freq
Solution
ArrayHash TableBinary Search+3 more
Medium
76.6% Accepted
51.2% Freq
Solution
ArrayHash Table
Medium
75.9% Accepted
50.9% Freq
Solution
ArrayHash TableSliding Window
Medium
29.7% Accepted
50.9% Freq
Hash TableStringDynamic Programming+1 more
Medium
43.8% Accepted
50.3% Freq
ArrayHash TableTwo Pointers+2 more
Medium
40.7% Accepted
50.3% Freq
Solution
ArrayHash TableGreedy+1 more
Hard
37.6% Accepted
50.3% Freq
ArrayHash TableString+2 more
Medium
87.0% Accepted
50.2% Freq
Solution
ArrayHash TableBit Manipulation
Medium
76.9% Accepted
49.9% Freq
Solution
ArrayHash TableString
Hard
41.6% Accepted
49.8% Freq
Solution
ArrayHash TableMath+2 more
Hard
48.6% Accepted
49.8% Freq
ArrayHash TableBinary Search+1 more
Medium
45.0% Accepted
49.8% Freq
ArrayHash TableString+2 more
Medium
76.1% Accepted
49.8% Freq
Solution
Hash TableStringSliding Window
Hard
30.4% Accepted
49.8% Freq
ArrayHash TableDynamic Programming
Medium
40.3% Accepted
49.4% Freq
Solution
ArrayHash TableBinary Search+2 more
Medium
56.4% Accepted
49.2% Freq
Solution
Hash TableLinked ListTwo Pointers
Medium
79.0% Accepted
49.0% Freq
Solution
Hash TableTreeDepth-First Search+2 more
Medium
51.5% Accepted
48.3% Freq
Solution
ArrayHash TableMath+1 more
Medium
53.4% Accepted
48.3% Freq
Solution
ArrayHash TableCounting
Hard
62.8% Accepted
48.1% Freq
Solution
ArrayHash TableDesign+2 more
Hard
42.8% Accepted
47.9% Freq
ArrayHash TableString+1 more
Medium
60.4% Accepted
47.6% Freq
Hash TableMathString+3 more
Medium
46.0% Accepted
47.5% Freq
Solution
ArrayHash TableTwo Pointers+2 more
Hard
36.6% Accepted
47.3% Freq
Solution
ArrayHash TableString+1 more
Medium
49.4% Accepted
47.1% Freq
Hash TableMathString+1 more
Medium
36.6% Accepted
46.6% Freq
ArrayHash TableBinary Search+2 more
Medium
53.2% Accepted
46.6% Freq
ArrayHash TableSliding Window
Medium
54.4% Accepted
46.6% Freq
ArrayHash TableSimulation
Medium
57.5% Accepted
46.5% Freq
Solution
ArrayHash TableDynamic Programming
Medium
77.0% Accepted
46.3% Freq
Solution
ArrayHash TableString+1 more
Hard
52.2% Accepted
46.2% Freq
Solution
ArrayHash TableBinary Search+1 more
Medium
57.2% Accepted
46.1% Freq
Solution
Hash TableStringDepth-First Search+2 more
Medium
70.6% Accepted
46.0% Freq
Solution
Hash TableDesignHeap (Priority Queue)+1 more
Hard
55.8% Accepted
45.9% Freq
Solution
ArrayHash TableString+3 more
Medium
46.9% Accepted
45.5% Freq
ArrayHash TableString+1 more
Medium
46.2% Accepted
44.9% Freq
Solution
ArrayHash TableCounting
Medium
51.1% Accepted
44.7% Freq
ArrayHash TableString+1 more
Medium
48.2% Accepted
44.5% Freq
ArrayHash TableGreedy+3 more
Medium
10.9% Accepted
44.3% Freq
ArrayHash TableString+2 more
Hard
45.7% Accepted
43.6% Freq
ArrayHash TableBit Manipulation+2 more
Medium
75.2% Accepted
43.6% Freq
ArrayHash TableString+1 more
Medium
53.7% Accepted
43.6% Freq
ArrayHash TableMath+1 more
Medium
28.3% Accepted
43.6% Freq
ArrayHash TableMath+3 more
737. Sentence Similarity II
💰 Premium
Medium
50.9% Accepted
43.3% Freq
Solution
ArrayHash TableString+3 more
Medium
36.3% Accepted
43.2% Freq
ArrayHash TableTwo Pointers
Medium
38.2% Accepted
43.1% Freq
ArrayHash TableString
Medium
54.3% Accepted
43.0% Freq
Solution
ArrayHash TableMath+1 more
Medium
43.9% Accepted
43.0% Freq
Hash TableStringSliding Window
Medium
62.1% Accepted
42.9% Freq
Solution
ArrayHash TableBacktracking+1 more
Medium
40.9% Accepted
42.4% Freq
ArrayHash TableString+2 more
Medium
46.5% Accepted
42.4% Freq
ArrayHash TableString+2 more
Hard
20.4% Accepted
42.4% Freq
ArrayHash TableBinary Search+3 more
Hard
40.3% Accepted
41.5% Freq
Solution
Hash TableStringBreadth-First Search
Medium
72.1% Accepted
41.5% Freq
Hash TableStringDynamic Programming+1 more
Medium
57.6% Accepted
41.4% Freq
Solution
ArrayHash TableGreedy+1 more
Medium
68.7% Accepted
41.3% Freq
ArrayHash TableString
Medium
51.9% Accepted
41.3% Freq
ArrayHash TableDesign+1 more
Medium
38.7% Accepted
41.3% Freq
ArrayHash TableTwo Pointers+2 more
Medium
29.5% Accepted
41.3% Freq
ArrayHash TableMath+1 more
Hard
50.4% Accepted
40.8% Freq
Solution
ArrayHash TableString+5 more
Medium
67.3% Accepted
40.6% Freq
Solution
ArrayHash TableDivide and Conquer+2 more
Medium
56.8% Accepted
40.5% Freq
Solution
Hash TableStringSliding Window
Medium
68.5% Accepted
40.5% Freq
Solution
Hash TableTreeDepth-First Search+1 more
Hard
43.2% Accepted
40.3% Freq
ArrayHash TableDynamic Programming+1 more
Medium
37.7% Accepted
40.3% Freq
ArrayHash TableBinary Search+2 more
Medium
45.6% Accepted
40.3% Freq
ArrayHash TableGreedy
Hard
69.5% Accepted
40.3% Freq
Solution
Hash TableMathCombinatorics+1 more
Medium
62.8% Accepted
40.3% Freq
ArrayHash TableGreedy+2 more
Hard
59.7% Accepted
40.2% Freq
ArrayHash TableBit Manipulation
Hard
74.6% Accepted
40.1% Freq
Solution
ArrayHash TableMatrix+1 more
Medium
54.4% Accepted
39.8% Freq
Solution
ArrayHash TableDynamic Programming
Hard
40.8% Accepted
39.8% Freq
ArrayHash TableMath+4 more
Medium
56.8% Accepted
39.4% Freq
Solution
Hash TableStringBit Manipulation+2 more
Medium
60.2% Accepted
39.4% Freq
Hash TableStringCounting
Medium
26.3% Accepted
39.4% Freq
ArrayHash Table
Medium
68.5% Accepted
39.0% Freq
Solution
ArrayHash TableString+1 more
Medium
78.0% Accepted
39.0% Freq
Solution
ArrayHash TableDivide and Conquer+2 more
Medium
59.9% Accepted
38.8% Freq
Solution
ArrayHash TableTree+4 more
Medium
57.2% Accepted
38.7% Freq
Solution
ArrayHash TableString+2 more
Hard
40.8% Accepted
38.5% Freq
ArrayHash TableTwo Pointers+2 more
Hard
30.0% Accepted
38.5% Freq
ArrayHash TableMath+2 more
Medium
57.5% Accepted
37.9% Freq
Solution
ArrayHash TableLinked List
Medium
80.8% Accepted
37.9% Freq
Solution
ArrayHash TableBit Manipulation+1 more
Hard
18.6% Accepted
37.8% Freq
ArrayHash TableString+3 more
Medium
54.2% Accepted
37.4% Freq
Solution
Hash TableStringSorting+1 more
Medium
87.5% Accepted
37.2% Freq
Solution
ArrayHash TableGreedy
Medium
49.1% Accepted
37.0% Freq
Solution
ArrayHash Table
Medium
54.4% Accepted
37.0% Freq
ArrayHash TableGreedy+1 more
Medium
54.1% Accepted
37.0% Freq
ArrayHash TableString+2 more
Medium
75.0% Accepted
37.0% Freq
ArrayHash TableString+1 more
Hard
13.2% Accepted
36.6% Freq
ArrayHash TableMath+1 more
Hard
56.1% Accepted
36.4% Freq
Hash TableStringDynamic Programming
Hard
38.0% Accepted
36.4% Freq
ArrayHash TableString+1 more
Medium
72.8% Accepted
36.2% Freq
Solution
Hash TableTreeDepth-First Search+2 more
Hard
34.3% Accepted
36.1% Freq
ArrayHash TableMath+3 more
Medium
68.9% Accepted
35.8% Freq
Solution
ArrayHash TableTree+2 more
Medium
60.7% Accepted
35.7% Freq
Solution
ArrayHash TableString+1 more
Medium
53.0% Accepted
35.7% Freq
Solution
ArrayHash TableDynamic Programming+1 more
Medium
56.8% Accepted
35.7% Freq
ArrayHash TableSorting+1 more
Medium
42.8% Accepted
35.5% Freq
Hash TableString
Hard
81.6% Accepted
35.4% Freq
Solution
ArrayHash TableString+5 more
Medium
24.9% Accepted
35.4% Freq
Hash TableStringGreedy+2 more
Medium
35.2% Accepted
35.3% Freq
ArrayHash TableSliding Window
Medium
45.6% Accepted
35.1% Freq
Hash TableStringBinary Search+3 more
Medium
80.9% Accepted
35.1% Freq
ArrayHash TableMath+1 more
Hard
36.0% Accepted
34.6% Freq
ArrayHash TableDepth-First Search+1 more
Hard
72.3% Accepted
34.6% Freq
Solution
ArrayHash TableBit Manipulation+2 more
Hard
34.1% Accepted
34.6% Freq
Hash TableGraph
Medium
78.3% Accepted
34.0% Freq
Solution
Hash TableStringGreedy
Medium
83.6% Accepted
33.9% Freq
Solution
Hash TableStringBacktracking+1 more
Medium
68.5% Accepted
33.3% Freq
Solution
Hash TableStringBacktracking
Medium
50.9% Accepted
32.7% Freq
Solution
ArrayHash TableMath+4 more
Medium
39.4% Accepted
32.7% Freq
Solution
ArrayHash TablePrefix Sum
Medium
80.7% Accepted
32.6% Freq
ArrayHash Table
Medium
63.1% Accepted
32.1% Freq
Solution
ArrayHash TableGreedy+1 more
Medium
36.5% Accepted
31.9% Freq
ArrayHash TableStack+2 more
Medium
69.3% Accepted
31.9% Freq
Solution
ArrayHash TableGreedy+2 more
Medium
54.0% Accepted
31.8% Freq
Solution
ArrayHash TableString+2 more
Medium
42.8% Accepted
31.7% Freq
ArrayHash TableMath+1 more
Medium
51.8% Accepted
31.5% Freq
Solution
ArrayHash TableGreedy+1 more
Medium
72.5% Accepted
31.1% Freq
Solution
ArrayHash TableSorting+1 more
Medium
73.0% Accepted
31.0% Freq
ArrayHash Table
Medium
70.1% Accepted
30.9% Freq
Solution
ArrayHash TableCounting
Medium
46.7% Accepted
30.9% Freq
Solution
Hash TableStringDynamic Programming
Medium
53.1% Accepted
30.5% Freq
Solution
ArrayHash TableBinary Search+2 more
Medium
20.8% Accepted
30.2% Freq
ArrayHash TablePrefix Sum
Medium
70.7% Accepted
30.1% Freq
Solution
ArrayHash TableMatrix+1 more
Medium
58.2% Accepted
29.4% Freq
Hash TableStringBit Manipulation+1 more
Medium
52.9% Accepted
29.4% Freq
Hash TableStringSliding Window+1 more
Medium
76.2% Accepted
29.1% Freq
ArrayHash TableString+2 more
Hard
56.2% Accepted
28.5% Freq
Solution
ArrayHash TableTree+3 more
Medium
75.0% Accepted
28.5% Freq
Solution
Hash TableStringCounting
Medium
55.8% Accepted
27.3% Freq
Solution
ArrayHash TableString
Medium
70.9% Accepted
27.3% Freq
Solution
Hash TableStringGreedy+2 more
Medium
31.6% Accepted
27.3% Freq
ArrayHash TableSliding Window+1 more
Medium
42.0% Accepted
26.9% Freq
ArrayHash TableCounting
Medium
52.0% Accepted
26.8% Freq
ArrayHash TableDivide and Conquer+2 more
Medium
39.6% Accepted
25.1% Freq
Solution
ArrayHash TableGreedy+1 more
Medium
52.2% Accepted
24.9% Freq
Hash TableStringCounting+1 more
Medium
50.9% Accepted
24.6% Freq
ArrayHash TableBreadth-First Search+2 more
Medium
81.7% Accepted
24.4% Freq
Solution
ArrayHash TableTree+1 more
Medium
47.8% Accepted
24.0% Freq
ArrayHash TableBreadth-First Search
Medium
31.3% Accepted
23.9% Freq
ArrayHash TableMath+1 more
Hard
40.6% Accepted
23.0% Freq
Solution
ArrayHash TableString+2 more
Medium
52.4% Accepted
22.7% Freq
Solution
ArrayHash TableBinary Search+1 more
Medium
86.4% Accepted
22.3% Freq
Solution
ArrayHash Table
Medium
75.6% Accepted
22.3% Freq
Solution
Hash TableTreeDepth-First Search+2 more
Hard
8.8% Accepted
20.2% Freq
ArrayHash TableDivide and Conquer+2 more
Hard
59.7% Accepted
19.4% Freq
Solution
Hash TableBinary SearchUnion Find+3 more
Medium
65.9% Accepted
19.0% Freq
Solution
ArrayHash TableSorting+1 more
Medium
37.4% Accepted
17.5% Freq
ArrayHash TableDynamic Programming+1 more
Medium
68.4% Accepted
17.2% Freq
Hash TableStringDynamic Programming+1 more
Medium
56.1% Accepted
16.0% Freq
Solution
ArrayHash TableSliding Window
Medium
17.8% Accepted
15.1% Freq
Hash TableStringPrefix Sum
Medium
32.0% Accepted
13.7% Freq
ArrayHash TablePrefix Sum
Medium
69.7% Accepted
5.0% Freq
Solution
ArrayHash TableLinked List
Medium
24.4% Accepted
3.8% Freq
ArrayHash TablePrefix Sum
Hard
25.0% Accepted
3.0% Freq
ArrayHash TablePrefix Sum
Medium
24.3% Accepted
2.4% Freq
ArrayHash TableMath+2 more
267. Palindrome Permutation II
💰 Premium
Medium
42.2% Accepted
Solution
Hash TableStringBacktracking
379. Design Phone Directory
💰 Premium
Medium
52.6% Accepted
Solution
ArrayHash TableLinked List+2 more
Medium
44.6% Accepted
Solution
Hash TableMathReservoir Sampling+1 more
Medium
53.2% Accepted
Solution
Hash TableStringBacktracking+1 more
Medium
73.2% Accepted
Solution
ArrayHash TableString+1 more
Hard
45.2% Accepted
Solution
ArrayHash TableDepth-First Search+3 more
Medium
46.7% Accepted
Solution
Hash TableMath
Medium
78.6% Accepted
Solution
ArrayHash TableMatrix
Medium
63.7% Accepted
ArrayHash TableGreedy+2 more
Medium
76.4% Accepted
Solution
Hash TableStringSliding Window
Hard
34.7% Accepted
Solution
Hash TableStringGraph
Medium
63.0% Accepted
ArrayHash TableString+2 more
Hard
47.5% Accepted
Solution
ArrayHash TableString+2 more
Medium
76.8% Accepted
Solution
ArrayHash TableBinary Search+2 more
Medium
84.1% Accepted
Solution
Hash TableTreeDepth-First Search+3 more
Medium
59.0% Accepted
ArrayHash TableGreedy+1 more
Medium
75.7% Accepted
Solution
Hash TableStringBit Manipulation+1 more
Medium
68.6% Accepted
Solution
Hash TableStringGreedy+1 more
Medium
84.9% Accepted
Solution
ArrayHash TableMath+2 more
Medium
60.2% Accepted
ArrayHash TableString
Medium
36.6% Accepted
ArrayHash TableBinary Search+2 more
1490. Clone N-ary Tree
💰 Premium
Medium
83.2% Accepted
Solution
Hash TableTreeDepth-First Search+1 more
Medium
55.2% Accepted
Solution
Hash TableTreeDepth-First Search+2 more
Hard
45.9% Accepted
Hash TableStringBit Manipulation
Medium
48.5% Accepted
ArrayHash TableGreedy+1 more
1554. Strings Differ by One Character
💰 Premium
Medium
40.6% Accepted
Hash TableStringRolling Hash+1 more
Medium
43.4% Accepted
ArrayHash TableBinary Search+1 more
Medium
42.6% Accepted
ArrayHash TableMath+1 more
Medium
71.4% Accepted
Hash TableTreeDepth-First Search+2 more
1660. Correct a Binary Tree
💰 Premium
Medium
74.2% Accepted
Solution
Hash TableTreeDepth-First Search+2 more
Medium
42.8% Accepted
ArrayHash TablePrefix Sum
Hard
49.2% Accepted
ArrayHash TableBinary Search+1 more
Medium
37.5% Accepted
Hash TableStringCounting+1 more
Hard
41.7% Accepted
ArrayHash TableTwo Pointers+4 more
Medium
64.0% Accepted
Hash TableStringGreedy
Medium
75.6% Accepted
Solution
Hash TableLinked List
1852. Distinct Numbers in Each Subarray
💰 Premium
Medium
77.1% Accepted
Solution
ArrayHash TableSliding Window
Medium
66.6% Accepted
Solution
Hash TableStringBit Manipulation+1 more
Medium
81.3% Accepted
Solution
ArrayHash TableCounting
Medium
60.4% Accepted
Solution
ArrayHash TableHeap (Priority Queue)
Medium
79.4% Accepted
Solution
ArrayHash TableString+1 more
Medium
53.6% Accepted
ArrayHash TablePrefix Sum
Medium
51.9% Accepted
ArrayHash TableMath+2 more
Hard
33.6% Accepted
ArrayHash TableMath+4 more
Hard
35.1% Accepted
ArrayHash TableCounting+2 more
2067. Number of Equal Count Substrings
💰 Premium
Medium
44.9% Accepted
Hash TableStringSliding Window+1 more
Medium
40.7% Accepted
ArrayHash TableBinary Search+2 more
Medium
74.3% Accepted
Solution
Hash TableMathString+2 more
Medium
60.4% Accepted
Solution
ArrayHash TableSliding Window
Medium
45.3% Accepted
ArrayHash TablePrefix Sum
Medium
43.8% Accepted
ArrayHash TableString+2 more
Medium
43.2% Accepted
ArrayHash TableMath+5 more
Medium
64.1% Accepted
Solution
Hash TableStringRolling Hash+2 more
Medium
73.0% Accepted
Hash TableStringCounting
Medium
56.7% Accepted
ArrayHash TableSimulation
Medium
54.5% Accepted
ArrayHash TableTrie+3 more
Medium
59.0% Accepted
ArrayHash TableString+1 more
Medium
59.3% Accepted
ArrayHash TableSimulation
Medium
57.1% Accepted
Solution
Hash TableDesignHeap (Priority Queue)+1 more
Hard
69.2% Accepted
ArrayHash TableGreedy
Medium
54.3% Accepted
Hash TableBinary SearchUnion Find+5 more
Medium
57.1% Accepted
Hash TableMathString+1 more
Hard
41.1% Accepted
ArrayHash TableGreedy+1 more
Medium
51.6% Accepted
Solution
Hash TableStringSliding Window
Hard
35.5% Accepted
ArrayHash TableMath+2 more
Medium
50.2% Accepted
Hash TableDesignQueue+2 more
Medium
27.3% Accepted
Hash TableStringCounting
Medium
48.7% Accepted
Hash TableMathString+2 more
Medium
68.0% Accepted
Solution
ArrayHash TableBinary Search+2 more
Hard
47.5% Accepted
ArrayHash TableDynamic Programming+2 more
Hard
28.5% Accepted
ArrayHash TableMath+1 more
Medium
52.8% Accepted
ArrayHash TableBit Manipulation+1 more
Medium
64.5% Accepted
Solution
ArrayHash TableSorting+2 more
Medium
57.5% Accepted
ArrayHash TableString+1 more
Hard
15.7% Accepted
ArrayHash TableBreadth-First Search+2 more
Medium
63.9% Accepted
Solution
ArrayHash TableMatrix
Medium
68.1% Accepted
ArrayHash TableMatrix
Hard
31.1% Accepted
ArrayHash TableBinary Search+5 more
Hard
46.5% Accepted
ArrayHash TableBit Manipulation+1 more
Hard
42.8% Accepted
ArrayHash TableOrdered Set
Medium
53.5% Accepted
Hash TableStringDynamic Programming+1 more
Medium
75.5% Accepted
Solution
ArrayHash TableSorting
Medium
28.0% Accepted
ArrayHash Table
Hard
28.3% Accepted
ArrayHash TableStack+3 more
Medium
55.7% Accepted
Hash TableStringSorting
Medium
40.1% Accepted
ArrayHash TableSliding Window
Hard
30.0% Accepted
Hash TableMathString+2 more
Medium
58.1% Accepted
Solution
ArrayHash TablePrefix Sum
2852. Sum of Remoteness of All Cells
💰 Premium
Medium
70.9% Accepted
Solution
ArrayHash TableDepth-First Search+3 more
Medium
26.2% Accepted
ArrayHash TableTwo Pointers+3 more
Medium
32.5% Accepted
ArrayHash TableBit Manipulation
Medium
62.0% Accepted
Solution
ArrayHash TableGreedy+1 more
Hard
43.8% Accepted
ArrayHash TableGreedy+1 more
Hard
21.3% Accepted
ArrayHash TableDynamic Programming+1 more
Medium
24.1% Accepted
ArrayHash TableGreedy
Hard
31.6% Accepted
ArrayHash TableBit Manipulation+2 more
Hard
25.6% Accepted
Hash TableMathString+2 more
Hard
29.3% Accepted
Hash TableStringSliding Window
2955. Number of Same-End Substrings
💰 Premium
Medium
61.6% Accepted
Solution
ArrayHash TableString+2 more
Hard
48.2% Accepted
ArrayHash TableMath+1 more
Medium
24.6% Accepted
ArrayHash TableEnumeration
Medium
61.9% Accepted
Solution
Hash TableStringBinary Search+2 more
Medium
38.8% Accepted
Solution
Hash TableStringBinary Search+2 more
Hard
23.8% Accepted
Hash TableStringPrefix Sum
Hard
45.1% Accepted
ArrayHash TableMath+4 more
Hard
31.0% Accepted
ArrayHash TableSliding Window+1 more
Medium
79.9% Accepted
Solution
Hash TableStringGreedy+2 more
Medium
26.5% Accepted
ArrayHash TableEnumeration
Medium
64.4% Accepted
ArrayHash TableString+1 more
Medium
48.4% Accepted
ArrayHash TableSorting+2 more
Medium
28.5% Accepted
Hash TableStringGreedy+3 more
Medium
42.1% Accepted
ArrayHash TableHeap (Priority Queue)+1 more
Hard
58.6% Accepted
Hash TableStringBinary Search+1 more
Medium
38.7% Accepted
ArrayHash TableString+2 more
Medium
54.2% Accepted
Solution
ArrayHash TableSimulation
Medium
32.1% Accepted
ArrayHash TableDynamic Programming
Hard
24.4% Accepted
ArrayHash TableDynamic Programming
Medium
43.3% Accepted
ArrayHash TableCounting
Medium
23.8% Accepted
ArrayHash TablePrefix Sum
Medium
37.9% Accepted
ArrayHash TableSorting+2 more
Hard
26.7% Accepted
ArrayHash TableSorting+2 more
Hard
38.3% Accepted
ArrayHash TableString+3 more
Medium
42.1% Accepted
Hash TableStringSliding Window
Hard
55.6% Accepted
Hash TableStringSliding Window
3299. Sum of Consecutive Subsequences
💰 Premium
Hard
41.7% Accepted
ArrayHash TableDynamic Programming
Medium
41.5% Accepted
Hash TableStringSliding Window
Medium
40.6% Accepted
Solution
Hash TableStringSliding Window
Hard
28.8% Accepted
ArrayHash TableGraph+1 more
Hard
16.7% Accepted
ArrayHash TableSliding Window+1 more
Medium
55.1% Accepted
Hash TableStringSliding Window
Hard
70.1% Accepted
Hash TableStringSliding Window
Medium
56.4% Accepted
Hash TableStringSorting
3369. Design an Array Statistics Tracker
💰 Premium
Hard
34.7% Accepted
Hash TableBinary SearchDesign+4 more
Medium
36.0% Accepted
ArrayHash TableCounting+1 more
Medium
27.9% Accepted
ArrayHash TablePrefix Sum
Hard
25.6% Accepted
Hash TableStringDynamic Programming+2 more
Medium
67.9% Accepted
ArrayHash TableDesign+3 more
Hard
18.4% Accepted
ArrayHash TableMath+1 more
Medium
34.8% Accepted
Hash TableStringStack+1 more
Hard
12.2% Accepted
ArrayHash TableMath+1 more
Medium
46.6% Accepted
ArrayHash TableMath+2 more
Medium
60.0% Accepted
ArrayHash Table
Medium
26.4% Accepted
ArrayHash Table
Medium
18.2% Accepted
Hash TableStringDynamic Programming+2 more
Medium
32.2% Accepted
ArrayHash TableBinary Search
Medium
47.8% Accepted
ArrayHash TableDepth-First Search+3 more
Hard
26.5% Accepted
ArrayHash TableMath+3 more
Hard
11.3% Accepted
ArrayHash TableDynamic Programming
Hard
14.5% Accepted
ArrayHash TableLinked List+4 more
Hard
12.9% Accepted
Hash TableMathString+2 more
Medium
56.5% Accepted
ArrayHash TableString+1 more
Medium
18.8% Accepted
Hash TableDynamic ProgrammingGraph
Hard
21.2% Accepted
ArrayHash TableMatrix+2 more
Medium
37.5% Accepted
Hash TableMathString+2 more
3672. Sum of Weighted Modes in Subarrays
💰 Premium
Medium
55.2% Accepted
ArrayHash TableSliding Window+2 more
Medium
34.1% Accepted
ArrayHash TableSliding Window+2 more
Medium
78.7% Accepted
ArrayHash Table
Page 1 of 48
Math (469 questions)
Medium
47.2% Accepted
93.7% Freq
Solution
Linked ListMathRecursion
Medium
48.7% Accepted
92.5% Freq
Solution
ArrayMathBinary Search+2 more
Medium
66.1% Accepted
92.2% Freq
Solution
Hash TableMathSorting+2 more
Medium
55.8% Accepted
90.7% Freq
Solution
MathCombinatoricsEnumeration
Medium
46.3% Accepted
90.7% Freq
Solution
MathStringStack
Hard
58.1% Accepted
90.5% Freq
Solution
Hash TableMathString+2 more
Medium
55.1% Accepted
83.2% Freq
Solution
ArrayHash TableMath+2 more
Medium
45.7% Accepted
82.9% Freq
Solution
Hash TableMathString+2 more
Hard
35.6% Accepted
82.3% Freq
ArrayMathCombinatorics
Medium
59.8% Accepted
81.9% Freq
Solution
MathDynamic ProgrammingProbability and Statistics
Medium
64.1% Accepted
81.7% Freq
Solution
ArrayMathGeometry+2 more
Medium
60.0% Accepted
81.1% Freq
Solution
Math
Medium
43.9% Accepted
80.5% Freq
Solution
ArrayMathTwo Pointers
Hard
46.2% Accepted
80.2% Freq
Solution
MathStringStack+1 more
Medium
30.1% Accepted
80.1% Freq
Solution
Hash TableMathString
Medium
52.0% Accepted
79.7% Freq
Solution
MathDynamic ProgrammingSliding Window+1 more
Hard
49.2% Accepted
79.5% Freq
Solution
MathStringDynamic Programming+1 more
Hard
34.7% Accepted
79.5% Freq
Solution
MathStringRecursion
Medium
54.1% Accepted
79.0% Freq
Solution
Hash TableMathString+1 more
Medium
34.9% Accepted
76.6% Freq
Solution
MathTwo PointersString
Hard
63.9% Accepted
76.3% Freq
Solution
MathEnumeration
Hard
48.6% Accepted
75.5% Freq
Solution
MathBit ManipulationRecursion
Hard
42.3% Accepted
75.1% Freq
Solution
MathEnumeration
Medium
68.4% Accepted
73.7% Freq
Solution
ArrayMathDivide and Conquer+4 more
Medium
66.2% Accepted
73.4% Freq
Solution
MathDynamic ProgrammingCombinatorics
Medium
69.7% Accepted
72.7% Freq
Solution
Hash TableMathString
Medium
35.4% Accepted
71.9% Freq
Solution
ArrayMathEnumeration+1 more
Medium
77.0% Accepted
71.8% Freq
Solution
MathStringBrainteaser+1 more
Hard
58.3% Accepted
71.0% Freq
Solution
MathCombinatorics
Medium
55.8% Accepted
70.9% Freq
Solution
ArrayHash TableMath+1 more
Hard
31.8% Accepted
70.5% Freq
Solution
MathString
Medium
28.7% Accepted
70.2% Freq
MathGreedyBit Manipulation
Hard
42.4% Accepted
69.2% Freq
Solution
MathStringBacktracking
Medium
48.8% Accepted
68.5% Freq
Solution
MathGreedy
Medium
56.0% Accepted
68.4% Freq
Solution
MathDynamic ProgrammingBreadth-First Search
Hard
26.4% Accepted
68.0% Freq
Solution
ArrayMathDynamic Programming+2 more
Hard
36.5% Accepted
67.8% Freq
ArrayHash TableMath+5 more
Medium
54.5% Accepted
67.7% Freq
Solution
MathBit Manipulation
Medium
70.2% Accepted
67.4% Freq
Solution
ArrayMath
Medium
58.1% Accepted
66.8% Freq
Solution
ArrayHash TableMath+1 more
Medium
64.3% Accepted
66.4% Freq
Solution
Math
Hard
29.4% Accepted
66.3% Freq
Solution
MathBinary SearchDynamic Programming
Medium
56.4% Accepted
66.0% Freq
Solution
MathStringSimulation
Hard
56.1% Accepted
65.9% Freq
ArrayMathDynamic Programming+1 more
Hard
60.4% Accepted
65.3% Freq
Solution
ArrayMathBit Manipulation
Hard
53.2% Accepted
65.2% Freq
Solution
ArrayMathGreedy
Hard
37.8% Accepted
65.1% Freq
ArrayMathGeometry+2 more
Medium
32.1% Accepted
64.6% Freq
ArrayMathTwo Pointers+1 more
Hard
57.5% Accepted
64.1% Freq
Solution
ArrayMathStack+1 more
Medium
62.5% Accepted
64.0% Freq
Solution
ArrayMathString+1 more
Hard
36.7% Accepted
63.7% Freq
Solution
MathDynamic ProgrammingRecursion
Medium
19.0% Accepted
63.6% Freq
Solution
MathBit Manipulation
Hard
32.3% Accepted
63.1% Freq
ArrayMathGeometry+2 more
Medium
62.9% Accepted
63.1% Freq
Solution
MathDynamic ProgrammingTree+2 more
Medium
29.9% Accepted
62.8% Freq
ArrayMathBinary Search+3 more
Medium
43.0% Accepted
62.6% Freq
Solution
MathStringSimulation
Medium
56.0% Accepted
62.6% Freq
Solution
ArrayMathStack
Medium
56.0% Accepted
62.1% Freq
Solution
ArrayHash TableMath+1 more
Hard
36.1% Accepted
61.1% Freq
Solution
ArrayHash TableMath+2 more
Medium
49.1% Accepted
61.0% Freq
Solution
ArrayMathDynamic Programming+1 more
Hard
39.7% Accepted
60.5% Freq
Solution
MathStringEnumeration
Medium
55.2% Accepted
60.3% Freq
Solution
ArrayHash TableMath+2 more
Medium
82.1% Accepted
60.1% Freq
Solution
ArrayMathRecursion+2 more
Medium
66.3% Accepted
59.8% Freq
Solution
MathStringSimulation
Hard
29.7% Accepted
59.8% Freq
Solution
ArrayHash TableMath+1 more
Hard
64.4% Accepted
59.3% Freq
Solution
ArrayMathGeometry+2 more
Medium
44.1% Accepted
59.2% Freq
MathDepth-First SearchBreadth-First Search
Medium
31.1% Accepted
59.1% Freq
Solution
ArrayHash TableMath+1 more
Medium
30.8% Accepted
58.7% Freq
MathDynamic ProgrammingBit Manipulation+3 more
Medium
55.9% Accepted
58.6% Freq
ArrayHash TableMath+2 more
Medium
39.0% Accepted
58.6% Freq
Solution
ArrayHash TableMath+1 more
Medium
82.0% Accepted
58.6% Freq
Solution
ArrayMathSimulation+1 more
Medium
61.3% Accepted
58.0% Freq
Solution
ArrayMathSorting
Hard
34.1% Accepted
57.8% Freq
Solution
MathDynamic ProgrammingGraph+3 more
Hard
52.9% Accepted
57.8% Freq
ArrayMathTree+2 more
Medium
64.8% Accepted
57.7% Freq
Solution
Hash TableMathReservoir Sampling+1 more
Medium
47.8% Accepted
57.4% Freq
Solution
MathBit ManipulationRecursion
Medium
48.5% Accepted
57.3% Freq
Solution
ArrayHash TableMath+1 more
Hard
15.5% Accepted
57.1% Freq
ArrayMathSegment Tree+1 more
Medium
72.8% Accepted
56.7% Freq
Solution
MathStringDynamic Programming+2 more
Medium
54.9% Accepted
56.7% Freq
MathDynamic ProgrammingBacktracking
Medium
36.6% Accepted
56.4% Freq
Solution
MathTwo PointersBinary Search
Hard
50.8% Accepted
56.1% Freq
Solution
ArrayHash TableMath+4 more
Medium
56.0% Accepted
56.0% Freq
Solution
ArrayMathDynamic Programming+2 more
Hard
49.5% Accepted
55.8% Freq
Solution
Hash TableMathString+2 more
Hard
53.4% Accepted
55.3% Freq
Solution
MathBinary Search
Medium
49.4% Accepted
55.2% Freq
Solution
Hash TableMathDynamic Programming+1 more
Medium
51.9% Accepted
54.8% Freq
Solution
Hash TableMathString
Medium
74.3% Accepted
54.7% Freq
Solution
ArrayHash TableMath+2 more
Medium
62.1% Accepted
54.6% Freq
Solution
Linked ListMathStack
Hard
34.8% Accepted
54.4% Freq
ArrayMathString+1 more
Medium
25.8% Accepted
54.4% Freq
ArrayMathDynamic Programming+2 more
Medium
45.6% Accepted
53.9% Freq
ArrayMathGeometry
Hard
50.7% Accepted
53.8% Freq
ArrayMathGreedy+1 more
Medium
58.2% Accepted
53.3% Freq
Solution
ArrayMath
Medium
61.9% Accepted
53.1% Freq
Solution
MathGeometryNumber Theory
Medium
20.2% Accepted
52.7% Freq
ArrayMathQueue+3 more
Hard
23.1% Accepted
52.3% Freq
ArrayMathEnumeration+1 more
Hard
18.2% Accepted
52.3% Freq
MathStringBreadth-First Search+2 more
Medium
46.0% Accepted
52.1% Freq
Solution
MathRejection SamplingRandomized+1 more
Medium
62.9% Accepted
51.7% Freq
Solution
Hash TableMathBacktracking+2 more
Hard
30.3% Accepted
51.6% Freq
ArrayMathNumber Theory
Hard
36.1% Accepted
50.3% Freq
Solution
MathBinary Search
Hard
41.6% Accepted
49.8% Freq
Solution
ArrayHash TableMath+2 more
Hard
25.7% Accepted
49.8% Freq
MathStringDynamic Programming+1 more
Medium
49.6% Accepted
49.5% Freq
Solution
ArrayMathDepth-First Search+3 more
Medium
56.6% Accepted
49.2% Freq
Solution
MathDynamic Programming
Medium
38.8% Accepted
49.0% Freq
Solution
ArrayMathBinary Search+4 more
Hard
37.0% Accepted
48.8% Freq
MathDynamic ProgrammingBit Manipulation+2 more
Medium
39.3% Accepted
48.8% Freq
ArrayMathBrainteaser+1 more
Medium
59.3% Accepted
48.7% Freq
Solution
ArrayMathDesign+1 more
360. Sort Transformed Array
💰 Premium
Medium
57.5% Accepted
48.6% Freq
Solution
ArrayMathTwo Pointers+1 more
1230. Toss Strange Coins
💰 Premium
Medium
58.1% Accepted
48.6% Freq
Solution
ArrayMathDynamic Programming+1 more
Medium
51.5% Accepted
48.3% Freq
Solution
ArrayHash TableMath+1 more
Hard
44.6% Accepted
48.3% Freq
MathDynamic Programming
Medium
37.5% Accepted
47.9% Freq
ArrayMathGreedy+2 more
Medium
36.4% Accepted
47.9% Freq
ArrayMathDynamic Programming
Medium
61.5% Accepted
47.7% Freq
Solution
MathDynamic Programming
Medium
38.9% Accepted
47.7% Freq
Solution
MathBinary SearchGreedy
Medium
60.4% Accepted
47.6% Freq
Hash TableMathString+3 more
Medium
72.2% Accepted
47.3% Freq
Solution
ArrayMathDynamic Programming+1 more
Medium
49.4% Accepted
47.1% Freq
Hash TableMathString+1 more
Medium
49.1% Accepted
47.1% Freq
Solution
MathGreedy
Medium
59.2% Accepted
46.6% Freq
Solution
MathDynamic Programming
Medium
67.5% Accepted
45.8% Freq
Solution
ArrayMathDivide and Conquer
Medium
27.7% Accepted
45.6% Freq
Solution
MathNumber Theory
Medium
62.3% Accepted
45.0% Freq
Solution
ArrayMathDynamic Programming
Medium
82.4% Accepted
45.0% Freq
ArrayMathStack+3 more
Medium
62.8% Accepted
44.9% Freq
Solution
ArrayMathDesign+2 more
Medium
49.1% Accepted
44.7% Freq
ArrayMathNumber Theory
Hard
50.9% Accepted
43.6% Freq
Solution
ArrayMathBit Manipulation+1 more
Medium
53.7% Accepted
43.6% Freq
ArrayHash TableMath+1 more
Hard
35.5% Accepted
43.6% Freq
MathDynamic ProgrammingTree+2 more
Hard
11.7% Accepted
43.6% Freq
MathStringBacktracking+2 more
Medium
28.3% Accepted
43.6% Freq
ArrayHash TableMath+3 more
Hard
47.9% Accepted
43.1% Freq
ArrayMathUnion Find+2 more
Medium
20.9% Accepted
43.1% Freq
ArrayMathDynamic Programming+2 more
Medium
54.3% Accepted
43.0% Freq
Solution
ArrayHash TableMath+1 more
Medium
37.5% Accepted
42.7% Freq
Solution
ArrayMathGreedy+1 more
Hard
60.0% Accepted
42.5% Freq
Solution
MathDynamic ProgrammingCombinatorics
Medium
68.1% Accepted
42.4% Freq
Solution
ArrayMathPrefix Sum
Medium
55.9% Accepted
42.3% Freq
Solution
ArrayMathDynamic Programming+1 more
Hard
33.2% Accepted
41.3% Freq
ArrayMathBit Manipulation+3 more
Medium
28.8% Accepted
41.3% Freq
MathGraphHeap (Priority Queue)+2 more
Hard
21.2% Accepted
41.3% Freq
ArrayMathBinary Indexed Tree+3 more
Medium
29.5% Accepted
41.3% Freq
ArrayHash TableMath+1 more
Medium
38.3% Accepted
41.1% Freq
MathGreedy
Medium
65.0% Accepted
41.0% Freq
MathStringGreedy
Hard
62.9% Accepted
41.0% Freq
ArrayMathNumber Theory
Medium
30.9% Accepted
40.3% Freq
MathBinary SearchCombinatorics+1 more
Hard
43.2% Accepted
40.3% Freq
ArrayMathGreedy
Hard
69.5% Accepted
40.3% Freq
Solution
Hash TableMathCombinatorics+1 more
Hard
34.7% Accepted
40.3% Freq
MathGreedyGraph
Hard
11.9% Accepted
40.3% Freq
MathDynamic Programming
Medium
51.8% Accepted
40.2% Freq
ArrayMathNumber Theory
Medium
74.3% Accepted
39.8% Freq
MathDynamic Programming
Hard
40.8% Accepted
39.8% Freq
ArrayHash TableMath+4 more
Medium
53.2% Accepted
39.8% Freq
MathSorting
Medium
65.0% Accepted
39.6% Freq
MathSimulation
Medium
86.7% Accepted
39.4% Freq
ArrayMathGeometry
Medium
60.4% Accepted
39.4% Freq
MathGreedy
Hard
47.2% Accepted
39.4% Freq
ArrayMathDynamic Programming+2 more
Medium
40.8% Accepted
39.4% Freq
ArrayMathNumber Theory
Hard
23.0% Accepted
39.4% Freq
ArrayMathStack+1 more
Hard
44.3% Accepted
38.5% Freq
ArrayMathDynamic Programming+1 more
Hard
30.3% Accepted
38.5% Freq
ArrayMathBinary Search+1 more
Hard
15.8% Accepted
38.5% Freq
MathStringDynamic Programming+2 more
Hard
30.0% Accepted
38.5% Freq
ArrayHash TableMath+2 more
Medium
31.7% Accepted
38.5% Freq
ArrayMathBit Manipulation+1 more
Medium
63.0% Accepted
38.5% Freq
Solution
MathBacktrackingBit Manipulation
Medium
45.7% Accepted
38.4% Freq
ArrayMathDynamic Programming
Medium
79.3% Accepted
38.3% Freq
Solution
Math
Medium
68.3% Accepted
37.9% Freq
MathGreedyHeap (Priority Queue)
Medium
29.3% Accepted
37.9% Freq
MathRecursion
Medium
34.2% Accepted
37.8% Freq
MathString
Medium
44.8% Accepted
37.6% Freq
ArrayMathDynamic Programming
Medium
42.7% Accepted
37.0% Freq
ArrayMathProbability and Statistics
Hard
62.0% Accepted
37.0% Freq
Solution
ArrayMathDynamic Programming+3 more
Hard
13.2% Accepted
36.6% Freq
ArrayHash TableMath+1 more
Hard
44.0% Accepted
36.4% Freq
Solution
ArrayMathString+2 more
Hard
34.3% Accepted
36.1% Freq
ArrayHash TableMath+3 more
Hard
34.9% Accepted
35.7% Freq
ArrayMathGeometry+1 more
Hard
63.2% Accepted
35.6% Freq
Solution
ArrayMathDynamic Programming+1 more
Hard
13.5% Accepted
35.5% Freq
MathStringCombinatorics+1 more
Hard
40.8% Accepted
35.1% Freq
MathDynamic Programming
Medium
80.9% Accepted
35.1% Freq
ArrayHash TableMath+1 more
Hard
37.7% Accepted
35.1% Freq
MathStringDynamic Programming
Medium
54.2% Accepted
34.4% Freq
Solution
ArrayMathBit Manipulation
Medium
67.5% Accepted
34.0% Freq
Solution
ArrayMathSorting+1 more
Medium
43.8% Accepted
34.0% Freq
MathGreedyEnumeration
Medium
82.6% Accepted
33.6% Freq
Solution
Math
Medium
57.3% Accepted
33.6% Freq
Solution
MathString
Medium
72.9% Accepted
33.5% Freq
ArrayMathDynamic Programming+2 more
Medium
84.7% Accepted
32.7% Freq
Solution
ArrayMathGreedy+2 more
Medium
50.9% Accepted
32.7% Freq
Solution
ArrayHash TableMath+4 more
Hard
41.8% Accepted
32.6% Freq
Solution
ArrayMathUnion Find+1 more
Medium
67.0% Accepted
32.5% Freq
MathDynamic ProgrammingBrainteaser+1 more
Medium
42.8% Accepted
31.7% Freq
ArrayHash TableMath+1 more
Medium
64.7% Accepted
30.5% Freq
MathGreedy
Medium
55.0% Accepted
30.3% Freq
MathStringDynamic Programming+1 more
Medium
53.7% Accepted
30.1% Freq
ArrayMathSimulation+2 more
Hard
64.4% Accepted
29.1% Freq
Solution
ArrayMathBit Manipulation+2 more
Hard
59.5% Accepted
28.2% Freq
Solution
MathDynamic ProgrammingGame Theory
Medium
32.9% Accepted
27.9% Freq
MathBacktrackingNumber Theory
Medium
59.6% Accepted
26.8% Freq
MathBacktrackingGreedy
Medium
61.2% Accepted
25.6% Freq
Solution
Linked ListMathStack
Medium
31.3% Accepted
23.9% Freq
ArrayHash TableMath+1 more
Medium
91.5% Accepted
23.3% Freq
Solution
Linked ListMathNumber Theory
Medium
72.7% Accepted
23.2% Freq
Solution
MathStringSimulation
Medium
51.8% Accepted
21.5% Freq
MathGreedy
Medium
87.0% Accepted
20.1% Freq
Solution
ArrayMathString+1 more
Hard
22.7% Accepted
19.6% Freq
MathBit Manipulation
Medium
45.8% Accepted
19.5% Freq
Solution
MathStringSimulation
Medium
51.9% Accepted
18.1% Freq
Solution
MathDynamic ProgrammingGame Theory
Hard
20.5% Accepted
14.2% Freq
ArrayMathTree+1 more
Medium
89.7% Accepted
13.9% Freq
MathTwo PointersBrainteaser
Medium
64.4% Accepted
10.7% Freq
Solution
Linked ListMathReservoir Sampling+1 more
Medium
62.3% Accepted
9.2% Freq
ArrayMathGreedy+2 more
Hard
39.6% Accepted
7.7% Freq
MathDynamic Programming
Hard
12.4% Accepted
6.1% Freq
ArrayMathGreedy+2 more
Hard
47.0% Accepted
6.1% Freq
ArrayMathDynamic Programming+3 more
Medium
58.7% Accepted
3.2% Freq
MathGreedy
Medium
24.3% Accepted
2.4% Freq
ArrayHash TableMath+2 more
Medium
41.9% Accepted
Solution
MathGeometryRejection Sampling+1 more
Medium
44.6% Accepted
Solution
Hash TableMathReservoir Sampling+1 more
634. Find the Derangement of An Array
💰 Premium
Medium
41.7% Accepted
Solution
MathDynamic ProgrammingCombinatorics
Medium
49.8% Accepted
Solution
MathBit ManipulationDepth-First Search+1 more
750. Number Of Corner Rectangles
💰 Premium
Medium
67.9% Accepted
Solution
ArrayMathDynamic Programming+1 more
Hard
46.2% Accepted
Solution
MathBinary Search
Hard
48.6% Accepted
Solution
MathDynamic ProgrammingMemoization
Medium
46.7% Accepted
Solution
Hash TableMath
Medium
58.2% Accepted
ArrayMathSliding Window+1 more
Medium
45.7% Accepted
ArrayMathString+2 more
Medium
75.7% Accepted
MathTreeBinary Tree
Medium
69.7% Accepted
MathTwo PointersBinary Search+1 more
Medium
72.3% Accepted
MathBacktrackingBit Manipulation
Hard
64.9% Accepted
Solution
MathDynamic ProgrammingCombinatorics
Hard
33.0% Accepted
ArrayMathDynamic Programming+2 more
Medium
84.9% Accepted
Solution
ArrayHash TableMath+2 more
Hard
39.4% Accepted
ArrayMathGeometry
Hard
60.6% Accepted
ArrayMathDynamic Programming+3 more
Medium
69.4% Accepted
Solution
ArrayMathInteractive
Hard
53.8% Accepted
Solution
ArrayMathDivide and Conquer+7 more
Medium
42.6% Accepted
ArrayHash TableMath+1 more
Medium
45.2% Accepted
MathDynamic ProgrammingCombinatorics
Hard
48.9% Accepted
ArrayMathUnion Find+1 more
Medium
60.9% Accepted
Solution
Linked ListMathTwo Pointers
Medium
79.1% Accepted
Solution
MathDynamic ProgrammingCombinatorics
Medium
56.8% Accepted
Solution
MathBit ManipulationSimulation
Medium
58.6% Accepted
Solution
ArrayMathDynamic Programming+1 more
Hard
53.7% Accepted
ArrayMathDynamic Programming+2 more
Hard
57.9% Accepted
Solution
ArrayMathDynamic Programming+4 more
Medium
72.5% Accepted
ArrayMathSimulation
Hard
34.8% Accepted
MathRecursionNumber Theory
Hard
43.4% Accepted
ArrayMathCounting+1 more
Hard
50.6% Accepted
MathStringCombinatorics
Hard
62.1% Accepted
ArrayMathBit Manipulation
Hard
58.3% Accepted
MathDynamic ProgrammingCombinatorics
Medium
49.7% Accepted
ArrayMathSorting+3 more
Hard
51.2% Accepted
MathStringDynamic Programming+1 more
Hard
49.5% Accepted
MathDynamic ProgrammingTree+3 more
Medium
55.1% Accepted
MathBinary Search
Hard
50.1% Accepted
ArrayMathBinary Search+2 more
Medium
36.8% Accepted
MathGreedyRecursion
Medium
48.2% Accepted
MathEnumeration
Medium
51.9% Accepted
ArrayHash TableMath+2 more
Hard
57.4% Accepted
MathDynamic ProgrammingTree+2 more
Hard
33.6% Accepted
ArrayHash TableMath+4 more
Medium
57.4% Accepted
Solution
ArrayMathSimulation
Medium
62.9% Accepted
Solution
MathStringGreedy+1 more
Medium
74.3% Accepted
Solution
Hash TableMathString+2 more
Medium
59.9% Accepted
ArrayMathDynamic Programming
Medium
76.2% Accepted
ArrayMathBit Manipulation+1 more
Hard
48.7% Accepted
Solution
MathStringDynamic Programming
Medium
43.2% Accepted
ArrayHash TableMath+5 more
Medium
62.5% Accepted
MathDynamic Programming
Medium
26.5% Accepted
ArrayMathGreedy+1 more
Medium
56.3% Accepted
MathEnumeration
Medium
26.5% Accepted
ArrayMathGeometry+2 more
Medium
27.7% Accepted
MathDynamic ProgrammingGreedy+1 more
Medium
79.6% Accepted
ArrayMathBit Manipulation
Hard
56.9% Accepted
Solution
MathDynamic ProgrammingCombinatorics+1 more
Hard
58.8% Accepted
ArrayMathSorting+2 more
Medium
68.4% Accepted
ArrayMathBinary Search+1 more
Medium
71.3% Accepted
Solution
ArrayMathDynamic Programming
Medium
36.5% Accepted
MathDynamic ProgrammingCombinatorics
Medium
70.3% Accepted
ArrayMathDynamic Programming+2 more
Medium
63.6% Accepted
MathString
2464. Minimum Subarrays in a Valid Split
💰 Premium
Medium
64.6% Accepted
Solution
ArrayMathDynamic Programming+1 more
Medium
42.2% Accepted
ArrayMathNumber Theory
Medium
57.1% Accepted
Hash TableMathString+1 more
Medium
62.4% Accepted
ArrayMathDynamic Programming
2505. Bitwise OR of All Subsequence Sums
💰 Premium
Medium
64.4% Accepted
ArrayMathBit Manipulation+2 more
Medium
49.5% Accepted
MathSimulationNumber Theory
Medium
31.7% Accepted
MathBinary SearchNumber Theory
Medium
51.5% Accepted
Solution
MathNumber Theory
Hard
35.5% Accepted
ArrayHash TableMath+2 more
Medium
48.7% Accepted
Hash TableMathString+2 more
Medium
32.8% Accepted
ArrayMathGreedy
Medium
35.2% Accepted
ArrayMathString
Hard
28.5% Accepted
ArrayHash TableMath+1 more
Medium
55.6% Accepted
Solution
ArrayMathBinary Search+2 more
2638. Count the Number of K-Free Subsets
💰 Premium
Medium
47.0% Accepted
ArrayMathDynamic Programming+2 more
Medium
34.0% Accepted
ArrayMathNumber Theory
Medium
81.8% Accepted
Solution
MathBacktracking
Medium
54.4% Accepted
MathDynamic ProgrammingGreedy+1 more
Medium
34.4% Accepted
ArrayMathDynamic Programming
Medium
36.5% Accepted
ArrayMathEnumeration+1 more
Hard
22.6% Accepted
ArrayMathBinary Search+2 more
2802. Find The K-th Lucky Number
💰 Premium
Medium
76.2% Accepted
Solution
MathStringBit Manipulation
Hard
53.9% Accepted
Solution
ArrayMathStack+4 more
Hard
20.7% Accepted
MathDynamic Programming
Medium
35.5% Accepted
MathGreedy
Hard
30.0% Accepted
Hash TableMathString+2 more
Medium
38.3% Accepted
MathStringGreedy+1 more
Medium
43.5% Accepted
MathGreedy
Medium
37.1% Accepted
Solution
Math
Hard
42.2% Accepted
ArrayMathNumber Theory
Hard
58.4% Accepted
MathDynamic ProgrammingCombinatorics
Hard
57.2% Accepted
Solution
MathCombinatorics
Medium
56.4% Accepted
MathDynamic ProgrammingCombinatorics
Hard
25.6% Accepted
Hash TableMathString+2 more
Hard
48.2% Accepted
ArrayHash TableMath+1 more
Medium
22.8% Accepted
ArrayMathBinary Search+2 more
Medium
80.2% Accepted
MathDynamic ProgrammingNumber Theory
Medium
72.1% Accepted
ArrayMathDynamic Programming+4 more
Hard
46.4% Accepted
Solution
MathStringDynamic Programming
Medium
37.9% Accepted
MathBinary SearchDynamic Programming+1 more
Hard
45.1% Accepted
ArrayHash TableMath+4 more
Medium
35.4% Accepted
ArrayMathGreedy+1 more
Medium
49.5% Accepted
MathStringCounting
Hard
19.1% Accepted
ArrayMathBinary Search+3 more
Medium
42.2% Accepted
ArrayMathBinary Search
Medium
27.3% Accepted
ArrayMathNumber Theory
Hard
25.5% Accepted
ArrayMathDepth-First Search+3 more
Medium
47.4% Accepted
ArrayMathDynamic Programming+1 more
Hard
23.7% Accepted
ArrayMathDynamic Programming+2 more
Medium
36.5% Accepted
ArrayMathBinary Search+2 more
Hard
34.1% Accepted
MathDynamic ProgrammingCombinatorics
Medium
28.9% Accepted
ArrayMathGreedy+1 more
Hard
30.4% Accepted
ArrayMathDynamic Programming+1 more
Hard
26.4% Accepted
MathStringDynamic Programming+1 more
Medium
50.5% Accepted
ArrayMathBinary Indexed Tree+4 more
Hard
18.4% Accepted
ArrayHash TableMath+1 more
Hard
12.2% Accepted
ArrayHash TableMath+1 more
Medium
46.6% Accepted
ArrayHash TableMath+2 more
Hard
34.1% Accepted
MathCombinatorics
Hard
26.2% Accepted
ArrayMathDynamic Programming+3 more
Hard
26.5% Accepted
ArrayHash TableMath+3 more
Hard
52.1% Accepted
ArrayMathGreedy+1 more
Medium
25.8% Accepted
ArrayMathBit Manipulation
Hard
12.9% Accepted
Hash TableMathString+2 more
Hard
37.9% Accepted
MathStringDynamic Programming
Medium
37.5% Accepted
Hash TableMathString+2 more
Medium
53.3% Accepted
MathTreeDepth-First Search
Hard
59.8% Accepted
ArrayMathDynamic Programming+3 more
Medium
71.0% Accepted
MathBrainteaser
Hard
18.3% Accepted
ArrayMathBinary Search+3 more
Medium
59.4% Accepted
ArrayMathDynamic Programming+1 more
Hard
20.7% Accepted
MathDynamic ProgrammingBit Manipulation+1 more
Page 1 of 40
Greedy (393 questions)
Medium
58.9% Accepted
90.8% Freq
Solution
ArrayTwo PointersGreedy
253. Meeting Rooms II
💰 Premium
Medium
52.4% Accepted
90.1% Freq
Solution
ArrayTwo PointersGreedy+3 more
Medium
38.7% Accepted
88.4% Freq
Solution
ArrayGreedySorting+1 more
Medium
56.6% Accepted
87.4% Freq
Solution
Hash TableStringGreedy+3 more
Medium
44.4% Accepted
85.3% Freq
Solution
ArrayBinary SearchGreedy+3 more
Medium
66.5% Accepted
84.6% Freq
Solution
StringStackGreedy
Medium
42.0% Accepted
83.6% Freq
Solution
ArrayStringGreedy+1 more
Medium
74.1% Accepted
83.5% Freq
Solution
ArrayGreedyHeap (Priority Queue)
Hard
57.6% Accepted
83.3% Freq
Solution
ArrayHash TableGreedy+1 more
Medium
30.0% Accepted
82.9% Freq
ArrayHash TableDynamic Programming+3 more
Medium
59.5% Accepted
82.4% Freq
Dynamic ProgrammingGreedyBit Manipulation
Medium
53.9% Accepted
82.2% Freq
Solution
ArrayGreedySliding Window
Medium
50.9% Accepted
80.3% Freq
Solution
ArrayBinary SearchDynamic Programming+2 more
Medium
55.0% Accepted
80.2% Freq
Solution
ArrayGreedySorting+2 more
Medium
40.1% Accepted
80.0% Freq
Solution
ArrayDynamic ProgrammingGreedy
Medium
50.2% Accepted
79.4% Freq
Solution
ArrayGreedy
Hard
59.2% Accepted
78.3% Freq
Solution
ArrayBinary SearchDynamic Programming+2 more
Medium
70.2% Accepted
78.0% Freq
Solution
ArrayDynamic ProgrammingGreedy
Medium
52.9% Accepted
77.6% Freq
Solution
StringDynamic ProgrammingGreedy+1 more
Medium
56.4% Accepted
77.5% Freq
Solution
ArrayTwo PointersBinary Search+2 more
Hard
71.4% Accepted
77.0% Freq
Solution
StringBacktrackingGreedy+2 more
Hard
30.6% Accepted
77.0% Freq
StringGreedyString Matching
Medium
67.2% Accepted
76.6% Freq
Solution
Hash TableStringGreedy+2 more
Medium
35.9% Accepted
76.5% Freq
Solution
StringStackGreedy+1 more
Medium
62.2% Accepted
75.3% Freq
Solution
ArrayHash TableGreedy+3 more
Medium
42.1% Accepted
74.9% Freq
Solution
ArrayDynamic ProgrammingGreedy
Medium
74.5% Accepted
74.7% Freq
Solution
StringStackGreedy
Hard
50.7% Accepted
74.1% Freq
Solution
ArrayDynamic ProgrammingGreedy
Medium
50.5% Accepted
73.1% Freq
Solution
ArrayGreedyHeap (Priority Queue)
Medium
53.6% Accepted
72.8% Freq
Solution
ArrayHash TableString+2 more
Medium
51.0% Accepted
72.5% Freq
Solution
Hash TableStringStack+2 more
Medium
78.8% Accepted
71.2% Freq
Solution
ArrayGreedySorting
Medium
44.4% Accepted
70.7% Freq
ArrayHash TableString+3 more
Medium
60.9% Accepted
70.2% Freq
Solution
ArrayTwo PointersGreedy+1 more
Medium
28.7% Accepted
70.2% Freq
MathGreedyBit Manipulation
Medium
56.1% Accepted
69.7% Freq
Solution
ArrayTwo PointersBinary Search+2 more
Medium
39.5% Accepted
69.6% Freq
Solution
StringDynamic ProgrammingStack+1 more
Medium
32.7% Accepted
69.4% Freq
ArrayGreedy
Hard
15.0% Accepted
69.4% Freq
StringGreedyHeap (Priority Queue)
Medium
52.1% Accepted
69.0% Freq
Solution
StringStackGreedy+1 more
Medium
48.8% Accepted
68.5% Freq
Solution
MathGreedy
Medium
60.4% Accepted
68.4% Freq
Solution
ArrayGreedyEnumeration
Medium
67.8% Accepted
68.3% Freq
Solution
ArrayHash TableGreedy
Hard
30.8% Accepted
67.9% Freq
Solution
StringDynamic ProgrammingGreedy+1 more
Medium
81.8% Accepted
67.7% Freq
Solution
ArrayGreedySorting
Hard
69.6% Accepted
67.3% Freq
Solution
ArrayDynamic ProgrammingGreedy+3 more
Medium
58.1% Accepted
66.8% Freq
Solution
ArrayHash TableMath+1 more
Medium
39.0% Accepted
66.7% Freq
Solution
ArrayHash TableBinary Search+2 more
Medium
62.5% Accepted
66.0% Freq
Solution
Hash TableStringStack+1 more
Hard
53.2% Accepted
65.2% Freq
Solution
ArrayMathGreedy
Medium
64.9% Accepted
63.5% Freq
Solution
ArrayBinary SearchDynamic Programming+1 more
Medium
78.1% Accepted
63.4% Freq
Solution
Two PointersStringStack+1 more
Medium
29.9% Accepted
62.8% Freq
ArrayMathBinary Search+3 more
Hard
69.9% Accepted
62.8% Freq
Solution
ArrayHash TableGreedy+3 more
Medium
56.0% Accepted
62.1% Freq
Solution
ArrayHash TableMath+1 more
Medium
56.2% Accepted
62.0% Freq
Solution
ArrayDynamic ProgrammingGreedy+1 more
Medium
41.9% Accepted
61.6% Freq
ArrayGreedy
Hard
47.7% Accepted
61.5% Freq
Solution
ArrayGreedySorting+1 more
Medium
43.2% Accepted
60.3% Freq
ArrayHash TableGreedy+1 more
Medium
45.0% Accepted
60.0% Freq
Solution
StringStackGreedy
Medium
64.1% Accepted
60.0% Freq
Solution
ArrayStackGreedy+2 more
Medium
47.5% Accepted
60.0% Freq
StringDynamic ProgrammingGreedy
Medium
68.9% Accepted
59.4% Freq
ArrayTwo PointersGreedy
Medium
36.3% Accepted
58.0% Freq
ArrayDivide and ConquerGreedy+2 more
Medium
81.7% Accepted
58.0% Freq
Solution
Hash TableTwo PointersString+1 more
Hard
40.9% Accepted
57.6% Freq
Solution
ArrayDynamic ProgrammingGreedy+1 more
Hard
33.6% Accepted
57.2% Freq
ArrayTwo PointersStack+2 more
Hard
60.3% Accepted
57.1% Freq
ArrayGreedySorting
Medium
53.1% Accepted
57.1% Freq
ArrayGreedyHeap (Priority Queue)
Medium
67.4% Accepted
56.5% Freq
ArrayBinary SearchGreedy+1 more
Hard
52.4% Accepted
56.1% Freq
Two PointersStringGreedy+1 more
Medium
61.4% Accepted
55.8% Freq
Solution
Hash TableStringGreedy+1 more
Hard
41.0% Accepted
55.4% Freq
Solution
ArrayGreedySorting+1 more
Medium
75.1% Accepted
55.0% Freq
Solution
ArrayTwo PointersGreedy+1 more
Medium
37.7% Accepted
54.8% Freq
Solution
ArrayTwo PointersStack+3 more
Medium
36.7% Accepted
54.7% Freq
Hash TableStringGreedy+1 more
Medium
60.6% Accepted
54.4% Freq
ArrayTwo PointersGreedy+1 more
Medium
39.1% Accepted
54.4% Freq
Solution
ArrayGreedy
Hard
24.1% Accepted
54.4% Freq
ArrayTwo PointersBinary Search+5 more
Medium
52.0% Accepted
54.2% Freq
Solution
ArrayGreedySorting
1580. Put Boxes Into the Warehouse II
💰 Premium
Medium
65.8% Accepted
53.9% Freq
Solution
ArrayGreedySorting
Medium
62.6% Accepted
53.8% Freq
StringStackGreedy+1 more
Hard
50.7% Accepted
53.8% Freq
ArrayMathGreedy+1 more
Medium
68.1% Accepted
53.7% Freq
Solution
ArrayGreedySorting
358. Rearrange String k Distance Apart
💰 Premium
Hard
39.4% Accepted
53.5% Freq
Solution
Hash TableStringGreedy+3 more
Hard
58.8% Accepted
53.5% Freq
Solution
GreedyDepth-First SearchBreadth-First Search+2 more
Medium
25.5% Accepted
52.8% Freq
ArrayHash TableStack+2 more
Medium
51.3% Accepted
52.7% Freq
ArrayDynamic ProgrammingGreedy
Medium
35.0% Accepted
52.7% Freq
ArrayHash TableGreedy+1 more
Medium
52.5% Accepted
52.7% Freq
StringDynamic ProgrammingGreedy
Medium
51.1% Accepted
52.7% Freq
ArrayDynamic ProgrammingGreedy+1 more
Hard
72.2% Accepted
52.1% Freq
Solution
ArrayGreedySorting+1 more
1564. Put Boxes Into the Warehouse I
💰 Premium
Medium
67.2% Accepted
51.6% Freq
Solution
ArrayGreedySorting
Medium
63.6% Accepted
51.3% Freq
Solution
ArrayHash TableGreedy+2 more
Medium
80.2% Accepted
50.9% Freq
Solution
ArrayGreedyBit Manipulation+1 more
Hard
40.5% Accepted
50.9% Freq
ArrayTwo PointersDynamic Programming+1 more
Medium
69.8% Accepted
50.9% Freq
ArrayGreedySorting
Medium
29.7% Accepted
50.9% Freq
Hash TableStringDynamic Programming+1 more
1167. Minimum Cost to Connect Sticks
💰 Premium
Medium
71.5% Accepted
50.7% Freq
Solution
ArrayGreedyHeap (Priority Queue)
Medium
50.9% Accepted
50.6% Freq
Solution
ArrayGreedySorting
Hard
53.5% Accepted
50.5% Freq
ArrayDynamic ProgrammingGreedy+1 more
Hard
54.5% Accepted
50.5% Freq
Solution
ArrayStackGreedy+2 more
Medium
71.5% Accepted
50.3% Freq
Solution
ArrayTwo PointersGreedy+1 more
Medium
40.7% Accepted
50.3% Freq
Solution
ArrayHash TableGreedy+1 more
Medium
71.3% Accepted
50.0% Freq
Solution
ArrayDynamic ProgrammingGreedy
Medium
60.9% Accepted
49.5% Freq
Solution
ArrayGreedySorting
Hard
54.8% Accepted
48.8% Freq
Solution
ArrayBinary SearchDynamic Programming+1 more
Hard
49.8% Accepted
48.1% Freq
Solution
ArrayBinary SearchGreedy+1 more
Hard
42.5% Accepted
48.1% Freq
Two PointersStringDynamic Programming+1 more
Medium
41.5% Accepted
48.0% Freq
ArrayGreedyGraph+2 more
Medium
37.5% Accepted
47.9% Freq
ArrayMathGreedy+2 more
Medium
65.5% Accepted
47.8% Freq
Solution
StringGreedyHeap (Priority Queue)
Medium
38.9% Accepted
47.7% Freq
Solution
MathBinary SearchGreedy
Medium
35.2% Accepted
47.6% Freq
ArrayBinary SearchGreedy+1 more
Medium
49.1% Accepted
47.1% Freq
Solution
MathGreedy
Medium
41.3% Accepted
46.6% Freq
Solution
ArrayGreedySorting
Hard
41.6% Accepted
46.6% Freq
StringDynamic ProgrammingGreedy
Medium
42.0% Accepted
46.3% Freq
ArrayGreedyBit Manipulation+1 more
Hard
50.3% Accepted
46.2% Freq
Solution
ArrayTwo PointersBinary Search+4 more
Medium
51.5% Accepted
45.8% Freq
ArrayGreedy
Medium
48.8% Accepted
45.5% Freq
ArrayGreedy
Medium
53.9% Accepted
45.5% Freq
Solution
ArrayTwo PointersGreedy+1 more
Medium
46.4% Accepted
45.0% Freq
Solution
ArrayBinary SearchDynamic Programming+2 more
Hard
46.6% Accepted
44.9% Freq
Solution
ArrayBinary SearchGreedy+2 more
Medium
54.9% Accepted
44.9% Freq
Solution
ArrayGreedySorting
Hard
16.6% Accepted
44.9% Freq
ArrayBinary SearchGreedy
Medium
48.2% Accepted
44.5% Freq
ArrayHash TableGreedy+3 more
Medium
54.4% Accepted
43.7% Freq
Solution
ArrayGreedySorting+1 more
Hard
59.0% Accepted
43.6% Freq
Two PointersStringDynamic Programming+3 more
Hard
11.7% Accepted
43.6% Freq
MathStringBacktracking+2 more
Medium
28.3% Accepted
43.6% Freq
ArrayHash TableMath+3 more
Medium
62.8% Accepted
43.5% Freq
Solution
ArrayBinary SearchGreedy
Medium
42.1% Accepted
43.3% Freq
ArrayGreedySorting+1 more
Medium
37.5% Accepted
42.7% Freq
Solution
ArrayMathGreedy+1 more
Medium
52.3% Accepted
42.6% Freq
ArrayDynamic ProgrammingGreedy
Medium
63.1% Accepted
42.4% Freq
ArrayGreedySorting
Medium
26.8% Accepted
42.0% Freq
StringDynamic ProgrammingGreedy+1 more
Medium
65.1% Accepted
41.9% Freq
Solution
ArrayGreedyHeap (Priority Queue)
Medium
60.5% Accepted
41.4% Freq
Solution
ArrayGreedySorting+1 more
Medium
57.6% Accepted
41.4% Freq
Solution
ArrayHash TableGreedy+1 more
Medium
86.3% Accepted
41.3% Freq
Solution
ArrayGreedyMatrix
Medium
56.5% Accepted
41.3% Freq
Solution
ArrayGreedy
Medium
53.8% Accepted
41.3% Freq
StringDynamic ProgrammingGreedy
Medium
23.9% Accepted
41.3% Freq
ArrayBinary SearchGreedy+3 more
Medium
38.3% Accepted
41.1% Freq
MathGreedy
Medium
65.0% Accepted
41.0% Freq
MathStringGreedy
Medium
63.6% Accepted
40.8% Freq
Solution
ArrayTwo PointersGreedy+3 more
1055. Shortest Way to Form String
💰 Premium
Medium
61.4% Accepted
40.5% Freq
Solution
Two PointersStringBinary Search+1 more
Hard
43.2% Accepted
40.3% Freq
ArrayMathGreedy
Medium
75.2% Accepted
40.3% Freq
Solution
ArrayGreedySorting+1 more
Medium
38.9% Accepted
40.3% Freq
StringGreedy
Medium
47.2% Accepted
40.3% Freq
StringDynamic ProgrammingGreedy
Medium
45.6% Accepted
40.3% Freq
ArrayHash TableGreedy
Hard
34.7% Accepted
40.3% Freq
MathGreedyGraph
Medium
62.8% Accepted
40.3% Freq
ArrayHash TableGreedy+2 more
Medium
44.3% Accepted
39.8% Freq
Solution
ArrayStackGreedy+2 more
Hard
71.2% Accepted
39.8% Freq
Solution
ArrayGreedySorting
Medium
60.4% Accepted
39.4% Freq
MathGreedy
Medium
55.9% Accepted
39.2% Freq
ArrayGreedy
Hard
53.9% Accepted
38.6% Freq
Solution
ArrayGreedyHeap (Priority Queue)+1 more
Hard
62.0% Accepted
38.5% Freq
Solution
StringStackGreedy+1 more
Hard
42.2% Accepted
38.5% Freq
ArrayGreedySliding Window+1 more
Hard
15.8% Accepted
38.5% Freq
MathStringDynamic Programming+2 more
Hard
38.7% Accepted
38.5% Freq
Binary SearchGreedyUnion Find+2 more
Medium
68.3% Accepted
37.9% Freq
MathGreedyHeap (Priority Queue)
Hard
45.8% Accepted
37.8% Freq
Solution
ArrayGreedySorting
Medium
61.3% Accepted
37.4% Freq
Solution
ArrayDynamic ProgrammingGreedy+1 more
Medium
87.5% Accepted
37.2% Freq
Solution
ArrayHash TableGreedy
Medium
54.4% Accepted
37.0% Freq
ArrayHash TableGreedy+1 more
Medium
65.7% Accepted
37.0% Freq
Solution
ArrayGreedySorting
Hard
63.0% Accepted
36.4% Freq
ArrayGreedyUnion Find+1 more
Medium
45.6% Accepted
36.3% Freq
Solution
ArrayGreedy
Medium
48.4% Accepted
35.7% Freq
ArrayGreedyMatrix
Medium
57.7% Accepted
35.7% Freq
ArrayDynamic ProgrammingGreedy+2 more
Medium
24.9% Accepted
35.4% Freq
Hash TableStringGreedy+2 more
Medium
25.1% Accepted
35.0% Freq
ArrayDynamic ProgrammingBacktracking+4 more
Medium
81.6% Accepted
35.0% Freq
Solution
ArrayTwo PointersGreedy+1 more
Medium
32.9% Accepted
34.6% Freq
ArrayGreedy
Medium
44.8% Accepted
34.0% Freq
Solution
StringGreedy
Medium
78.3% Accepted
34.0% Freq
Solution
Hash TableStringGreedy
Medium
43.8% Accepted
34.0% Freq
MathGreedyEnumeration
Medium
36.9% Accepted
33.5% Freq
ArrayGreedySorting
Medium
84.7% Accepted
32.7% Freq
Solution
ArrayMathGreedy+2 more
Medium
63.1% Accepted
32.1% Freq
Solution
ArrayHash TableGreedy+1 more
Medium
69.3% Accepted
31.9% Freq
Solution
ArrayHash TableGreedy+2 more
Medium
52.3% Accepted
31.7% Freq
Solution
ArrayStackGreedy+1 more
Medium
36.9% Accepted
31.6% Freq
Dynamic ProgrammingGreedyBit Manipulation+1 more
Medium
51.8% Accepted
31.5% Freq
Solution
ArrayHash TableGreedy+1 more
Hard
63.6% Accepted
31.4% Freq
Solution
ArrayGreedySorting+1 more
Medium
84.7% Accepted
31.1% Freq
Solution
Divide and ConquerGreedyTree+3 more
Hard
40.9% Accepted
30.9% Freq
StringGreedy
Hard
61.2% Accepted
30.9% Freq
ArrayGreedySorting
Medium
64.7% Accepted
30.5% Freq
MathGreedy
Medium
34.1% Accepted
29.1% Freq
ArrayTwo PointersBinary Search+2 more
Medium
67.7% Accepted
28.9% Freq
ArrayDynamic ProgrammingStack+2 more
Hard
76.5% Accepted
28.9% Freq
Solution
ArrayDynamic ProgrammingGreedy+1 more
Medium
50.6% Accepted
28.8% Freq
StringDynamic ProgrammingStack+1 more
Medium
70.9% Accepted
27.3% Freq
Solution
Hash TableStringGreedy+2 more
Medium
52.7% Accepted
26.8% Freq
Two PointersStringGreedy
Medium
59.6% Accepted
26.8% Freq
MathBacktrackingGreedy
Medium
44.5% Accepted
26.2% Freq
ArrayDynamic ProgrammingGreedy
Medium
39.6% Accepted
25.1% Freq
Solution
ArrayHash TableGreedy+1 more
Medium
63.3% Accepted
24.6% Freq
Solution
ArrayStringDynamic Programming+1 more
Medium
63.9% Accepted
24.4% Freq
Solution
ArrayGreedyHeap (Priority Queue)
Medium
41.9% Accepted
23.4% Freq
ArrayGreedy
Medium
85.7% Accepted
23.2% Freq
Solution
StringBacktrackingStack+1 more
Medium
49.1% Accepted
22.7% Freq
Solution
ArrayDynamic ProgrammingGreedy
Hard
40.8% Accepted
21.9% Freq
ArrayDynamic ProgrammingStack+2 more
Medium
51.8% Accepted
21.5% Freq
MathGreedy
Medium
88.7% Accepted
21.0% Freq
Solution
StringGreedy
Medium
34.3% Accepted
18.3% Freq
ArrayTwo PointersGreedy+2 more
Medium
57.9% Accepted
17.6% Freq
ArrayDynamic ProgrammingStack+2 more
Medium
68.4% Accepted
13.5% Freq
ArrayGreedy
Hard
13.5% Accepted
13.2% Freq
ArrayGreedySegment Tree+1 more
Hard
78.1% Accepted
13.0% Freq
Solution
ArrayDynamic ProgrammingStack+2 more
Medium
59.4% Accepted
11.5% Freq
ArrayGreedy
Medium
62.3% Accepted
9.2% Freq
ArrayMathGreedy+2 more
Hard
12.4% Accepted
6.1% Freq
ArrayMathGreedy+2 more
Medium
60.0% Accepted
6.0% Freq
StringGreedy
Medium
58.7% Accepted
3.2% Freq
MathGreedy
Medium
36.0% Accepted
Solution
ArrayStringGreedy
Medium
45.7% Accepted
ArrayMathString+2 more
Medium
63.7% Accepted
ArrayHash TableGreedy+2 more
Medium
59.0% Accepted
ArrayHash TableGreedy+1 more
Hard
33.0% Accepted
ArrayMathDynamic Programming+2 more
Medium
68.6% Accepted
Solution
Hash TableStringGreedy+1 more
Medium
70.7% Accepted
StringGreedySorting
Hard
40.6% Accepted
StringGreedyBinary Indexed Tree+1 more
Medium
59.2% Accepted
Solution
ArrayGreedySorting
Medium
48.6% Accepted
ArrayGreedyMatrix
Medium
53.4% Accepted
StringStackGreedy
Medium
48.5% Accepted
ArrayHash TableGreedy+1 more
Medium
62.8% Accepted
ArrayGreedyBit Manipulation
Hard
50.8% Accepted
StringGreedySorting
Medium
39.8% Accepted
ArrayGreedySorting+1 more
Medium
82.8% Accepted
Solution
ArrayGreedyMatrix
Medium
67.3% Accepted
Solution
StringGreedy
Medium
41.1% Accepted
Solution
ArrayGreedyHeap (Priority Queue)
Hard
49.2% Accepted
ArrayHash TableBinary Search+1 more
Medium
54.4% Accepted
ArrayTwo PointersGreedy+1 more
Medium
44.6% Accepted
ArrayGreedy
Medium
64.0% Accepted
Hash TableStringGreedy
Medium
63.0% Accepted
ArrayGreedySorting
Medium
74.1% Accepted
Solution
ArrayGreedySorting+1 more
Medium
71.7% Accepted
Two PointersStringGreedy
Medium
43.7% Accepted
StringGreedy
1874. Minimize Product Sum of Two Arrays
💰 Premium
Medium
89.1% Accepted
Solution
ArrayGreedySorting
Medium
37.5% Accepted
ArrayStringGreedy
Medium
50.4% Accepted
ArrayGreedySorting
Medium
36.8% Accepted
MathGreedyRecursion
Medium
49.3% Accepted
ArrayGreedy
Medium
58.0% Accepted
ArrayGreedySorting+1 more
Hard
39.3% Accepted
StringStackGreedy+1 more
Medium
62.9% Accepted
Solution
MathStringGreedy+1 more
Medium
35.6% Accepted
ArrayGreedySorting
Medium
44.0% Accepted
ArrayGreedySorting+2 more
Medium
26.5% Accepted
ArrayMathGreedy+1 more
Medium
23.7% Accepted
ArrayGreedy
Medium
35.6% Accepted
StringGreedyPrefix Sum
Medium
49.6% Accepted
ArrayGreedyHeap (Priority Queue)
Medium
49.5% Accepted
ArrayStackGreedy
Medium
42.8% Accepted
ArrayGreedyHeap (Priority Queue)
Hard
30.0% Accepted
ArrayTwo PointersBinary Search+4 more
Hard
65.5% Accepted
Dynamic ProgrammingGreedy
Medium
35.3% Accepted
ArrayBinary SearchGreedy+3 more
Medium
67.8% Accepted
Solution
ArrayGreedySorting
Medium
69.1% Accepted
Solution
GreedyGraphSorting+1 more
Medium
27.7% Accepted
MathDynamic ProgrammingGreedy+1 more
Medium
65.8% Accepted
ArrayGreedySorting
Medium
26.2% Accepted
ArrayBinary SearchGreedy+2 more
Medium
72.2% Accepted
ArrayGreedy
Hard
69.2% Accepted
ArrayHash TableGreedy
Medium
68.4% Accepted
ArrayMathBinary Search+1 more
Hard
41.8% Accepted
ArrayGreedySorting
Medium
70.3% Accepted
ArrayMathDynamic Programming+2 more
Hard
45.2% Accepted
ArrayGreedySorting
Medium
72.9% Accepted
Solution
Two PointersStringGreedy
Hard
41.1% Accepted
ArrayHash TableGreedy+1 more
Hard
34.0% Accepted
ArrayBinary SearchGreedy+3 more
Medium
32.8% Accepted
ArrayMathGreedy
Medium
68.0% Accepted
Solution
ArrayHash TableBinary Search+2 more
Medium
35.1% Accepted
ArrayBinary SearchGreedy+1 more
Medium
49.5% Accepted
ArrayGreedySorting
Hard
32.4% Accepted
ArrayStringDynamic Programming+3 more
Medium
40.7% Accepted
ArrayTwo PointersBinary Search+2 more
Hard
38.8% Accepted
ArrayBinary SearchStack+2 more
2599. Make the Prefix Sum Non-negative
💰 Premium
Medium
51.8% Accepted
Solution
ArrayGreedyHeap (Priority Queue)
Medium
55.6% Accepted
Solution
ArrayMathBinary Search+2 more
Hard
37.6% Accepted
StringGreedy
Medium
33.8% Accepted
StringGreedy
Medium
54.4% Accepted
MathDynamic ProgrammingGreedy+1 more
Medium
47.3% Accepted
ArrayGreedy
Hard
22.6% Accepted
ArrayMathBinary Search+2 more
Medium
31.2% Accepted
StringGreedyEnumeration
Medium
34.2% Accepted
ArrayDynamic ProgrammingGreedy
Hard
28.3% Accepted
ArrayHash TableStack+3 more
Hard
53.9% Accepted
Solution
ArrayMathStack+4 more
Medium
35.5% Accepted
MathGreedy
Hard
32.1% Accepted
ArrayGreedyBit Manipulation
Hard
30.0% Accepted
Hash TableMathString+2 more
Medium
38.3% Accepted
MathStringGreedy+1 more
Medium
43.5% Accepted
MathGreedy
Medium
26.2% Accepted
ArrayHash TableTwo Pointers+3 more
Medium
62.0% Accepted
Solution
ArrayHash TableGreedy+1 more
Medium
42.0% Accepted
ArrayGreedyBit Manipulation
Medium
40.5% Accepted
ArrayDynamic ProgrammingGreedy
Hard
43.8% Accepted
ArrayHash TableGreedy+1 more
Medium
24.1% Accepted
ArrayHash TableGreedy
Hard
60.8% Accepted
ArrayGreedySorting+2 more
Medium
64.0% Accepted
Solution
Two PointersStringGreedy
Medium
57.5% Accepted
ArrayGreedySorting
Medium
22.8% Accepted
ArrayMathBinary Search+2 more
Medium
65.5% Accepted
Solution
ArrayGreedySorting+1 more
Medium
35.4% Accepted
ArrayMathGreedy+1 more
Medium
79.9% Accepted
Solution
Hash TableStringGreedy+2 more
Hard
29.0% Accepted
ArrayGreedyBit Manipulation
Hard
20.5% Accepted
ArrayBinary SearchGreedy+1 more
Medium
28.5% Accepted
Hash TableStringGreedy+3 more
Hard
20.7% Accepted
ArrayGreedySliding Window+1 more
Medium
62.7% Accepted
StringGreedy
Medium
47.3% Accepted
ArrayGreedySorting
Medium
53.4% Accepted
StringGreedySorting
Medium
69.9% Accepted
StringGreedySorting
Medium
76.0% Accepted
Solution
ArrayGreedySorting+1 more
Medium
64.6% Accepted
ArrayDynamic ProgrammingGreedy
3205. Maximum Array Hopping Score I
💰 Premium
Medium
77.4% Accepted
ArrayDynamic ProgrammingStack+2 more
Medium
58.1% Accepted
ArrayDynamic ProgrammingGreedy+1 more
Medium
53.3% Accepted
StringGreedyCounting
Hard
26.0% Accepted
ArrayGreedyGraph+1 more
Hard
38.9% Accepted
ArrayGreedySorting
Medium
36.5% Accepted
ArrayMathBinary Search+2 more
Medium
21.0% Accepted
Two PointersStringDynamic Programming+1 more
Medium
28.9% Accepted
ArrayMathGreedy+1 more
Medium
37.3% Accepted
ArrayGreedySorting
Hard
25.0% Accepted
ArrayBinary SearchGreedy
Medium
18.2% Accepted
Hash TableStringDynamic Programming+2 more
Medium
60.2% Accepted
ArrayGreedySorting+2 more
Hard
20.4% Accepted
ArrayBinary SearchGreedy
Medium
66.1% Accepted
ArrayGreedySorting+1 more
Medium
52.6% Accepted
ArrayGreedy
Hard
52.1% Accepted
ArrayMathGreedy+1 more
Medium
62.2% Accepted
ArrayTwo PointersStack+3 more
Hard
18.3% Accepted
ArrayMathBinary Search+3 more
Medium
59.6% Accepted
ArrayGreedySorting
3730. Maximum Calories Burnt from Jumps
💰 Premium
Medium
75.2% Accepted
ArrayTwo PointersGreedy+1 more
Page 1 of 33
Sorting (388 questions)
Medium
57.6% Accepted
93.0% Freq
Solution
Hash TableTreeDepth-First Search+3 more
Medium
66.1% Accepted
92.2% Freq
Solution
Hash TableMathSorting+2 more
Medium
71.7% Accepted
90.9% Freq
Solution
ArrayHash TableString+1 more
253. Meeting Rooms II
💰 Premium
Medium
52.4% Accepted
90.1% Freq
Solution
ArrayTwo PointersGreedy+3 more
1152. Analyze User Website Visit Pattern
💰 Premium
Medium
44.2% Accepted
89.0% Freq
Solution
ArrayHash TableString+1 more
Medium
68.5% Accepted
88.7% Freq
Solution
ArrayDivide and ConquerSorting+2 more
Medium
38.7% Accepted
88.4% Freq
Solution
ArrayGreedySorting+1 more
Medium
56.6% Accepted
87.4% Freq
Solution
Hash TableStringGreedy+3 more
Medium
65.1% Accepted
86.8% Freq
Solution
ArrayHash TableDivide and Conquer+5 more
588. Design In-Memory File System
💰 Premium
Hard
48.3% Accepted
85.8% Freq
Solution
Hash TableStringDesign+2 more
Medium
44.4% Accepted
85.3% Freq
Solution
ArrayBinary SearchGreedy+3 more
Medium
42.0% Accepted
83.6% Freq
Solution
ArrayStringGreedy+1 more
Medium
64.1% Accepted
81.7% Freq
Solution
ArrayMathGeometry+2 more
Hard
63.7% Accepted
81.5% Freq
Solution
ArrayBinary SearchDynamic Programming+1 more
Medium
68.5% Accepted
80.6% Freq
Solution
ArrayTwo PointersSorting
Hard
54.5% Accepted
80.5% Freq
Solution
ArrayBinary SearchDynamic Programming+1 more
Medium
50.9% Accepted
80.3% Freq
Solution
ArrayBinary SearchDynamic Programming+2 more
Medium
55.0% Accepted
80.2% Freq
Solution
ArrayGreedySorting+2 more
Medium
65.1% Accepted
79.8% Freq
Solution
ArrayStringBinary Search+3 more
Hard
53.8% Accepted
79.4% Freq
Solution
Two PointersDesignSorting+2 more
Medium
35.1% Accepted
78.6% Freq
ArrayHash TableSliding Window+1 more
Medium
59.7% Accepted
78.1% Freq
Solution
ArrayHash TableString+5 more
Medium
56.4% Accepted
77.5% Freq
Solution
ArrayTwo PointersBinary Search+2 more
Hard
52.6% Accepted
77.4% Freq
Solution
Hash TableTreeDepth-First Search+3 more
642. Design Search Autocomplete System
💰 Premium
Hard
49.6% Accepted
76.8% Freq
Solution
StringDepth-First SearchDesign+4 more
Medium
67.2% Accepted
76.6% Freq
Solution
Hash TableStringGreedy+2 more
2021. Brightest Position on Street
💰 Premium
Medium
60.5% Accepted
75.8% Freq
ArraySortingPrefix Sum+1 more
Medium
62.2% Accepted
75.3% Freq
Solution
ArrayHash TableGreedy+3 more
Medium
31.5% Accepted
75.1% Freq
ArrayHash TableString+1 more
Hard
48.9% Accepted
74.9% Freq
Solution
ArrayHash TableSorting+2 more
Medium
60.4% Accepted
74.8% Freq
Solution
ArrayHash TableString+4 more
Hard
37.5% Accepted
73.7% Freq
Solution
ArrayBinary SearchDynamic Programming+1 more
Medium
68.4% Accepted
73.7% Freq
Solution
ArrayMathDivide and Conquer+4 more
Medium
72.2% Accepted
73.3% Freq
Solution
Hash TableStringSorting
Medium
49.1% Accepted
72.6% Freq
Solution
ArrayTwo PointersBinary Search+3 more
Medium
78.8% Accepted
71.2% Freq
Solution
ArrayGreedySorting
Medium
44.4% Accepted
70.7% Freq
ArrayHash TableString+3 more
Medium
47.5% Accepted
70.6% Freq
Solution
ArrayTwo PointersSorting
Medium
60.9% Accepted
70.2% Freq
Solution
ArrayTwo PointersGreedy+1 more
Medium
56.1% Accepted
70.0% Freq
Solution
ArrayDivide and ConquerSorting+5 more
Medium
56.1% Accepted
69.7% Freq
Solution
ArrayTwo PointersBinary Search+2 more
Medium
63.1% Accepted
69.4% Freq
Solution
Linked ListTwo PointersDivide and Conquer+2 more
1229. Meeting Scheduler
💰 Premium
Medium
55.2% Accepted
69.2% Freq
Solution
ArrayTwo PointersSorting
Medium
84.7% Accepted
68.4% Freq
Solution
ArraySortingMatrix
Hard
49.6% Accepted
67.8% Freq
Solution
ArrayStringDynamic Programming+3 more
Medium
56.1% Accepted
67.8% Freq
Solution
ArraySortingHeap (Priority Queue)+2 more
Medium
81.8% Accepted
67.7% Freq
Solution
ArrayGreedySorting
Medium
83.4% Accepted
67.6% Freq
Solution
StringSorting
Medium
47.0% Accepted
67.5% Freq
Solution
ArraySortingHeap (Priority Queue)
Hard
65.0% Accepted
67.4% Freq
Solution
Hash TableStringStack+1 more
Hard
69.6% Accepted
67.3% Freq
Solution
ArrayDynamic ProgrammingGreedy+3 more
Medium
29.2% Accepted
67.1% Freq
ArrayTwo PointersBinary Search+1 more
759. Employee Free Time
💰 Premium
Hard
72.6% Accepted
67.0% Freq
Solution
ArrayLine SweepSorting+1 more
Medium
40.8% Accepted
66.4% Freq
ArrayTwo PointersBinary Search+1 more
Medium
74.8% Accepted
66.3% Freq
Solution
Hash TableStringSorting+3 more
Hard
44.5% Accepted
66.1% Freq
Solution
ArrayDivide and ConquerBinary Indexed Tree+5 more
Hard
56.1% Accepted
65.9% Freq
ArrayMathDynamic Programming+1 more
Medium
46.0% Accepted
65.8% Freq
ArrayHash TableString+1 more
Medium
45.8% Accepted
65.6% Freq
ArrayHash TableBinary Search+2 more
Medium
50.6% Accepted
65.5% Freq
Solution
ArrayHash TableString+4 more
Medium
60.0% Accepted
65.4% Freq
Solution
ArrayHash TableString+4 more
Hard
37.8% Accepted
65.1% Freq
ArrayMathGeometry+2 more
Medium
32.1% Accepted
64.6% Freq
ArrayMathTwo Pointers+1 more
Medium
49.4% Accepted
64.1% Freq
Solution
ArrayTwo PointersBinary Search+1 more
Medium
62.5% Accepted
64.0% Freq
Solution
ArrayHash TableTwo Pointers+3 more
Medium
62.5% Accepted
64.0% Freq
Solution
ArrayMathString+1 more
Medium
55.3% Accepted
63.4% Freq
Solution
ArrayHash TableSorting+1 more
Hard
32.3% Accepted
63.1% Freq
ArrayMathGeometry+2 more
Medium
29.9% Accepted
62.8% Freq
ArrayMathBinary Search+3 more
Hard
69.9% Accepted
62.8% Freq
Solution
ArrayHash TableGreedy+3 more
Medium
45.0% Accepted
62.6% Freq
Solution
ArrayHash TableTwo Pointers+4 more
Medium
56.2% Accepted
62.0% Freq
Solution
ArrayDynamic ProgrammingGreedy+1 more
Hard
47.7% Accepted
61.5% Freq
Solution
ArrayGreedySorting+1 more
1244. Design A Leaderboard
💰 Premium
Medium
68.0% Accepted
61.1% Freq
Solution
Hash TableDesignSorting
Medium
58.2% Accepted
61.1% Freq
Solution
ArraySortingHeap (Priority Queue)
Medium
64.0% Accepted
61.1% Freq
Solution
ArrayBinary SearchSorting+2 more
Medium
49.2% Accepted
61.0% Freq
Solution
ArrayTwo PointersBinary Search+1 more
Medium
49.1% Accepted
61.0% Freq
Solution
ArrayMathDynamic Programming+1 more
Hard
62.5% Accepted
60.9% Freq
Solution
ArrayDynamic ProgrammingSorting
Medium
71.6% Accepted
60.8% Freq
Solution
ArrayBinary SearchSorting
Medium
55.2% Accepted
60.3% Freq
Solution
ArrayHash TableMath+2 more
Medium
64.1% Accepted
60.0% Freq
Solution
ArrayStackGreedy+2 more
Hard
64.4% Accepted
59.3% Freq
Solution
ArrayMathGeometry+2 more
Hard
40.4% Accepted
58.8% Freq
ArraySortingHeap (Priority Queue)
Medium
61.3% Accepted
58.0% Freq
Solution
ArrayMathSorting
Medium
36.3% Accepted
58.0% Freq
ArrayDivide and ConquerGreedy+2 more
Medium
62.4% Accepted
57.4% Freq
Solution
ArrayBacktrackingSorting
Hard
60.3% Accepted
57.1% Freq
ArrayGreedySorting
1885. Count Pairs in Two Arrays
💰 Premium
Medium
60.3% Accepted
57.1% Freq
Solution
ArrayTwo PointersBinary Search+1 more
Medium
67.4% Accepted
56.5% Freq
ArrayBinary SearchGreedy+1 more
Medium
39.9% Accepted
56.1% Freq
Solution
ArrayBinary SearchSliding Window+2 more
Medium
43.1% Accepted
55.9% Freq
Binary SearchUnion FindGraph+1 more
Medium
61.4% Accepted
55.8% Freq
Solution
Hash TableStringGreedy+1 more
Medium
68.9% Accepted
55.5% Freq
Solution
ArrayHash TableTwo Pointers+1 more
Hard
41.0% Accepted
55.4% Freq
Solution
ArrayGreedySorting+1 more
Medium
45.2% Accepted
55.0% Freq
Solution
ArrayHash TableTwo Pointers+2 more
Medium
75.1% Accepted
55.0% Freq
Solution
ArrayTwo PointersGreedy+1 more
Medium
37.7% Accepted
54.8% Freq
Solution
ArrayTwo PointersStack+3 more
Medium
83.4% Accepted
54.6% Freq
Solution
ArrayQueueSorting+1 more
Medium
60.6% Accepted
54.4% Freq
ArrayTwo PointersGreedy+1 more
Hard
33.0% Accepted
54.4% Freq
ArrayBinary SearchSorting+1 more
Hard
24.1% Accepted
54.4% Freq
ArrayTwo PointersBinary Search+5 more
Medium
52.0% Accepted
54.2% Freq
Solution
ArrayGreedySorting
Medium
49.5% Accepted
54.0% Freq
Solution
ArrayTwo PointersBinary Search+1 more
Medium
52.2% Accepted
53.9% Freq
Solution
ArrayTwo PointersString+1 more
1580. Put Boxes Into the Warehouse II
💰 Premium
Medium
65.8% Accepted
53.9% Freq
Solution
ArrayGreedySorting
Medium
50.6% Accepted
53.9% Freq
ArrayHash TableSorting
Medium
44.6% Accepted
53.9% Freq
Binary SearchUnion FindGraph+1 more
Medium
68.1% Accepted
53.7% Freq
Solution
ArrayGreedySorting
358. Rearrange String k Distance Apart
💰 Premium
Hard
39.4% Accepted
53.5% Freq
Solution
Hash TableStringGreedy+3 more
Medium
56.7% Accepted
53.4% Freq
Solution
ArrayHash TableTwo Pointers+1 more
Medium
71.1% Accepted
53.0% Freq
Dynamic ProgrammingMemoizationSorting
Medium
51.1% Accepted
52.7% Freq
ArrayDynamic ProgrammingGreedy+1 more
Hard
72.2% Accepted
52.1% Freq
Solution
ArrayGreedySorting+1 more
Medium
59.8% Accepted
52.0% Freq
ArrayHash TableString+2 more
Medium
65.7% Accepted
51.8% Freq
Solution
ArrayUnion FindSorting
Hard
24.1% Accepted
51.7% Freq
Solution
ArraySliding WindowSorting+2 more
1564. Put Boxes Into the Warehouse I
💰 Premium
Medium
67.2% Accepted
51.6% Freq
Solution
ArrayGreedySorting
Medium
63.6% Accepted
51.3% Freq
Solution
ArrayHash TableGreedy+2 more
Hard
57.5% Accepted
51.2% Freq
Solution
ArrayHash TableBinary Search+3 more
Hard
61.2% Accepted
50.9% Freq
ArrayDynamic ProgrammingSorting
Medium
69.8% Accepted
50.9% Freq
ArrayGreedySorting
Medium
56.9% Accepted
50.6% Freq
Solution
ArrayStringSorting
Medium
50.9% Accepted
50.6% Freq
Solution
ArrayGreedySorting
Hard
54.5% Accepted
50.5% Freq
Solution
ArrayStackGreedy+2 more
Medium
54.2% Accepted
50.4% Freq
Solution
ArrayStackSorting+1 more
Medium
43.8% Accepted
50.3% Freq
ArrayHash TableTwo Pointers+2 more
Medium
71.5% Accepted
50.3% Freq
Solution
ArrayTwo PointersGreedy+1 more
Medium
40.7% Accepted
50.3% Freq
Solution
ArrayHash TableGreedy+1 more
Medium
45.0% Accepted
49.8% Freq
ArrayHash TableString+2 more
Medium
60.9% Accepted
49.5% Freq
Solution
ArrayGreedySorting
Hard
54.0% Accepted
49.1% Freq
Solution
ArrayBinary SearchSliding Window+2 more
360. Sort Transformed Array
💰 Premium
Medium
57.5% Accepted
48.6% Freq
Solution
ArrayMathTwo Pointers+1 more
Hard
49.8% Accepted
48.1% Freq
Solution
ArrayBinary SearchGreedy+1 more
Medium
41.5% Accepted
48.0% Freq
ArrayGreedyGraph+2 more
Medium
37.5% Accepted
47.9% Freq
ArrayMathGreedy+2 more
Medium
50.6% Accepted
47.7% Freq
Solution
ArraySortingBucket Sort+1 more
Medium
35.2% Accepted
47.6% Freq
ArrayBinary SearchGreedy+1 more
Medium
46.0% Accepted
47.5% Freq
Solution
ArrayHash TableTwo Pointers+2 more
Hard
56.1% Accepted
47.4% Freq
Solution
ArrayStackSorting+1 more
Medium
57.5% Accepted
46.9% Freq
Solution
Linked ListSorting
Medium
74.4% Accepted
46.9% Freq
Solution
ArrayBinary Indexed TreeSegment Tree+1 more
Medium
41.3% Accepted
46.6% Freq
Solution
ArrayGreedySorting
Medium
36.6% Accepted
46.6% Freq
ArrayHash TableBinary Search+2 more
Hard
53.2% Accepted
46.5% Freq
ArrayBinary SearchLine Sweep+2 more
Hard
46.1% Accepted
46.4% Freq
Solution
ArrayTwo PointersBinary Search+1 more
Hard
50.3% Accepted
46.2% Freq
Solution
ArrayTwo PointersBinary Search+4 more
Medium
52.8% Accepted
46.1% Freq
Solution
ArrayTwo PointersBinary Search+1 more
1087. Brace Expansion
💰 Premium
Medium
66.8% Accepted
45.9% Freq
Solution
StringBacktrackingStack+2 more
Medium
53.9% Accepted
45.5% Freq
Solution
ArrayTwo PointersGreedy+1 more
Medium
46.9% Accepted
45.5% Freq
ArrayHash TableString+1 more
Medium
68.8% Accepted
45.0% Freq
ArraySortingMatrix
Hard
46.6% Accepted
44.9% Freq
Solution
ArrayBinary SearchGreedy+2 more
Medium
54.9% Accepted
44.9% Freq
Solution
ArrayGreedySorting
Medium
51.1% Accepted
44.7% Freq
ArrayHash TableString+1 more
Medium
48.2% Accepted
44.5% Freq
ArrayHash TableGreedy+3 more
Medium
54.4% Accepted
43.7% Freq
Solution
ArrayGreedySorting+1 more
Hard
37.7% Accepted
43.6% Freq
ArrayBinary SearchSliding Window+2 more
Medium
42.1% Accepted
43.3% Freq
ArrayGreedySorting+1 more
Medium
54.7% Accepted
43.1% Freq
ArrayBinary SearchSorting
Hard
47.9% Accepted
43.1% Freq
ArrayMathUnion Find+2 more
Medium
20.9% Accepted
43.1% Freq
ArrayMathDynamic Programming+2 more
Medium
37.5% Accepted
42.7% Freq
Solution
ArrayMathGreedy+1 more
Medium
45.8% Accepted
42.4% Freq
ArrayBinary SearchSorting
Medium
46.5% Accepted
42.4% Freq
ArrayHash TableString+2 more
Medium
63.1% Accepted
42.4% Freq
ArrayGreedySorting
Medium
68.3% Accepted
42.4% Freq
Solution
ArraySorting
Hard
41.7% Accepted
42.0% Freq
Solution
ArrayUnion FindGraph+3 more
Medium
60.5% Accepted
41.4% Freq
Solution
ArrayGreedySorting+1 more
Medium
57.6% Accepted
41.4% Freq
Solution
ArrayHash TableGreedy+1 more
Hard
21.2% Accepted
41.3% Freq
ArrayMathBinary Indexed Tree+3 more
Medium
23.9% Accepted
41.3% Freq
ArrayBinary SearchGreedy+3 more
Hard
59.4% Accepted
41.1% Freq
Solution
ArrayTwo PointersBreadth-First Search+4 more
Medium
63.6% Accepted
40.8% Freq
Solution
ArrayTwo PointersGreedy+3 more
Hard
40.9% Accepted
40.3% Freq
Solution
ArrayDynamic ProgrammingStack+3 more
Medium
75.2% Accepted
40.3% Freq
Solution
ArrayGreedySorting+1 more
Medium
37.7% Accepted
40.3% Freq
ArrayHash TableBinary Search+2 more
Medium
62.8% Accepted
40.3% Freq
ArrayHash TableGreedy+2 more
Medium
60.2% Accepted
40.2% Freq
Solution
ArrayUnion FindSorting
Medium
44.3% Accepted
39.8% Freq
Solution
ArrayStackGreedy+2 more
Hard
71.2% Accepted
39.8% Freq
Solution
ArrayGreedySorting
Medium
53.2% Accepted
39.8% Freq
MathSorting
Hard
39.5% Accepted
39.4% Freq
ArrayGraphSorting+1 more
Hard
40.8% Accepted
38.5% Freq
ArrayHash TableTwo Pointers+2 more
Hard
45.8% Accepted
37.8% Freq
Solution
ArrayGreedySorting
Medium
54.2% Accepted
37.4% Freq
Solution
Hash TableStringSorting+1 more
Medium
61.3% Accepted
37.4% Freq
Solution
ArrayDynamic ProgrammingGreedy+1 more
Hard
57.8% Accepted
37.3% Freq
Solution
ArrayBinary SearchDynamic Programming+1 more
Medium
66.5% Accepted
37.3% Freq
Solution
ArrayBit ManipulationSorting
Medium
65.7% Accepted
37.0% Freq
Solution
ArrayGreedySorting
Medium
45.8% Accepted
36.4% Freq
ArrayBreadth-First SearchSorting+2 more
Hard
63.0% Accepted
36.4% Freq
ArrayGreedyUnion Find+1 more
Hard
34.3% Accepted
36.1% Freq
ArrayHash TableMath+3 more
Medium
66.5% Accepted
36.1% Freq
StringSorting
Medium
53.0% Accepted
35.7% Freq
Solution
ArrayHash TableDynamic Programming+1 more
Medium
56.8% Accepted
35.7% Freq
ArrayHash TableSorting+1 more
Hard
42.5% Accepted
35.5% Freq
ArrayTwo PointersDynamic Programming+3 more
Hard
40.9% Accepted
35.3% Freq
ArrayBinary SearchStack+3 more
Medium
45.6% Accepted
35.1% Freq
Hash TableStringBinary Search+3 more
Medium
25.1% Accepted
35.0% Freq
ArrayDynamic ProgrammingBacktracking+4 more
Medium
81.6% Accepted
35.0% Freq
Solution
ArrayTwo PointersGreedy+1 more
Medium
63.1% Accepted
34.0% Freq
Solution
ArrayTwo PointersBinary Search+2 more
Medium
67.5% Accepted
34.0% Freq
Solution
ArrayMathSorting+1 more
Medium
83.1% Accepted
33.8% Freq
Solution
ArraySortingMatrix
Medium
50.5% Accepted
33.6% Freq
Solution
ArrayDynamic ProgrammingSorting
Medium
36.9% Accepted
33.5% Freq
ArrayGreedySorting
Medium
84.7% Accepted
32.7% Freq
Solution
ArrayMathGreedy+2 more
Medium
50.9% Accepted
32.7% Freq
Solution
ArrayHash TableMath+4 more
Medium
58.2% Accepted
32.7% Freq
Solution
ArrayBinary SearchSliding Window+1 more
Medium
61.6% Accepted
32.1% Freq
TreeDepth-First SearchSorting+1 more
Medium
17.0% Accepted
32.1% Freq
ArrayTwo PointersDynamic Programming+1 more
Medium
69.3% Accepted
31.9% Freq
Solution
ArrayHash TableGreedy+2 more
Medium
54.0% Accepted
31.8% Freq
Solution
ArrayHash TableString+2 more
Medium
31.8% Accepted
31.7% Freq
ArrayBinary SearchSorting+1 more
Medium
62.1% Accepted
31.7% Freq
Solution
ArrayBinary SearchSorting
Hard
63.6% Accepted
31.4% Freq
Solution
ArrayGreedySorting+1 more
Medium
60.8% Accepted
31.3% Freq
Solution
ArrayBinary SearchDynamic Programming+2 more
Medium
72.5% Accepted
31.1% Freq
Solution
ArrayHash TableSorting+1 more
Hard
61.2% Accepted
30.9% Freq
ArrayGreedySorting
Medium
68.8% Accepted
30.5% Freq
Solution
ArrayTwo PointersBinary Search+2 more
Medium
53.1% Accepted
30.5% Freq
Solution
ArrayHash TableBinary Search+2 more
Medium
52.3% Accepted
30.1% Freq
ArraySorting
Hard
66.2% Accepted
29.8% Freq
Solution
Union FindGraphSorting+2 more
Medium
63.2% Accepted
29.8% Freq
StringSortingCounting Sort
Medium
76.2% Accepted
29.1% Freq
ArrayHash TableString+2 more
Medium
34.1% Accepted
29.1% Freq
ArrayTwo PointersBinary Search+2 more
Hard
76.5% Accepted
28.9% Freq
Solution
ArrayDynamic ProgrammingGreedy+1 more
Medium
37.4% Accepted
28.8% Freq
ArrayBinary SearchSorting+1 more
Medium
80.1% Accepted
28.8% Freq
Solution
TreeDepth-First SearchBinary Search Tree+2 more
Medium
63.8% Accepted
28.5% Freq
ArrayDivide and ConquerBit Manipulation+5 more
Hard
56.2% Accepted
28.5% Freq
Solution
ArrayHash TableTree+3 more
Medium
59.1% Accepted
28.0% Freq
Solution
TreeBreadth-First SearchSorting+1 more
259. 3Sum Smaller
💰 Premium
Medium
51.1% Accepted
25.8% Freq
Solution
ArrayTwo PointersBinary Search+1 more
Medium
39.6% Accepted
25.1% Freq
Solution
ArrayHash TableGreedy+1 more
Medium
50.9% Accepted
24.6% Freq
ArrayHash TableBreadth-First Search+2 more
Medium
85.9% Accepted
23.0% Freq
ArraySortingMatrix
Medium
48.0% Accepted
22.5% Freq
Solution
ArraySorting
Medium
65.9% Accepted
19.0% Freq
Solution
ArrayHash TableSorting+1 more
Medium
34.3% Accepted
18.3% Freq
ArrayTwo PointersGreedy+2 more
Hard
25.8% Accepted
13.8% Freq
ArrayBinary SearchDynamic Programming+1 more
Medium
62.3% Accepted
9.2% Freq
ArrayMathGreedy+2 more
Medium
73.2% Accepted
Solution
ArrayHash TableString+1 more
Medium
58.2% Accepted
ArrayMathSliding Window+1 more
Medium
45.7% Accepted
ArrayMathString+2 more
Medium
63.7% Accepted
ArrayHash TableGreedy+2 more
Medium
63.0% Accepted
ArrayHash TableString+2 more
Medium
59.0% Accepted
ArrayHash TableGreedy+1 more
Medium
63.7% Accepted
ArraySorting
Hard
33.0% Accepted
ArrayMathDynamic Programming+2 more
Medium
70.7% Accepted
StringGreedySorting
Medium
62.3% Accepted
ArrayTwo PointersSorting
Medium
59.2% Accepted
Solution
ArrayGreedySorting
Hard
50.8% Accepted
StringGreedySorting
Medium
39.8% Accepted
ArrayGreedySorting+1 more
Hard
63.0% Accepted
Solution
ArrayTwo PointersUnion Find+2 more
Hard
41.7% Accepted
ArrayHash TableTwo Pointers+4 more
Medium
63.0% Accepted
ArrayGreedySorting
Medium
74.1% Accepted
Solution
ArrayGreedySorting+1 more
1874. Minimize Product Sum of Two Arrays
💰 Premium
Medium
89.1% Accepted
Solution
ArrayGreedySorting
Medium
49.7% Accepted
ArrayMathSorting+3 more
Medium
72.4% Accepted
Solution
ArraySorting
Medium
50.4% Accepted
ArrayGreedySorting
Medium
47.3% Accepted
ArrayStringDivide and Conquer+3 more
Medium
58.0% Accepted
ArrayGreedySorting+1 more
Medium
67.0% Accepted
Linked ListTwo PointersSorting
Hard
45.3% Accepted
Solution
Depth-First SearchBreadth-First SearchUnion Find+2 more
Medium
35.6% Accepted
ArrayGreedySorting
Medium
43.8% Accepted
ArrayHash TableString+2 more
Medium
44.0% Accepted
ArrayGreedySorting+2 more
Medium
26.5% Accepted
ArrayMathGreedy+1 more
Hard
30.0% Accepted
ArrayTwo PointersBinary Search+4 more
Medium
35.3% Accepted
ArrayBinary SearchGreedy+3 more
Medium
67.8% Accepted
Solution
ArrayGreedySorting
Medium
26.5% Accepted
ArrayMathGeometry+2 more
Medium
69.1% Accepted
Solution
GreedyGraphSorting+1 more
Medium
65.8% Accepted
ArrayGreedySorting
Medium
26.2% Accepted
ArrayBinary SearchGreedy+2 more
Medium
46.5% Accepted
ArrayStringDivide and Conquer+4 more
Hard
58.8% Accepted
ArrayMathSorting+2 more
Medium
36.6% Accepted
ArrayStackSorting+1 more
2371. Minimize Maximum Value in a Grid
💰 Premium
Hard
70.4% Accepted
Solution
ArrayUnion FindGraph+3 more
Hard
41.8% Accepted
ArrayGreedySorting
Hard
45.2% Accepted
ArrayGreedySorting
Hard
58.9% Accepted
Solution
ArrayDynamic ProgrammingSorting
Medium
68.0% Accepted
Solution
ArrayHash TableBinary Search+2 more
Medium
35.1% Accepted
ArrayBinary SearchGreedy+1 more
Medium
49.5% Accepted
ArrayGreedySorting
Medium
40.7% Accepted
ArrayTwo PointersBinary Search+2 more
Hard
38.8% Accepted
ArrayBinary SearchStack+2 more
Medium
64.5% Accepted
Solution
ArrayHash TableSorting+2 more
2604. Minimum Time to Eat All Grains
💰 Premium
Hard
40.0% Accepted
ArrayTwo PointersBinary Search+1 more
2638. Count the Number of K-Free Subsets
💰 Premium
Medium
47.0% Accepted
ArrayMathDynamic Programming+2 more
Medium
59.9% Accepted
ArraySortingHeap (Priority Queue)+2 more
Hard
31.1% Accepted
ArrayHash TableBinary Search+5 more
Medium
75.5% Accepted
Solution
ArrayHash TableSorting
Hard
22.6% Accepted
ArrayMathBinary Search+2 more
Hard
26.4% Accepted
ArrayDynamic ProgrammingSorting
Hard
28.3% Accepted
ArrayHash TableStack+3 more
Hard
53.9% Accepted
Solution
ArrayMathStack+4 more
Hard
45.2% Accepted
ArrayBinary SearchSorting+1 more
2838. Maximum Coins Heroes Can Collect
💰 Premium
Medium
68.6% Accepted
Solution
ArrayTwo PointersBinary Search+2 more
Medium
55.7% Accepted
Hash TableStringSorting
Medium
70.1% Accepted
ArrayStackSorting+1 more
Hard
60.8% Accepted
ArrayGreedySorting+2 more
Medium
57.5% Accepted
ArrayGreedySorting
Medium
22.8% Accepted
ArrayMathBinary Search+2 more
Medium
65.5% Accepted
Solution
ArrayGreedySorting+1 more
Hard
36.9% Accepted
Dynamic ProgrammingTreeDepth-First Search+2 more
Hard
45.1% Accepted
ArrayHash TableMath+4 more
Medium
79.9% Accepted
Solution
Hash TableStringGreedy+2 more
Hard
33.2% Accepted
ArrayDynamic ProgrammingSorting
Medium
48.4% Accepted
ArrayHash TableSorting+2 more
Medium
28.5% Accepted
Hash TableStringGreedy+3 more
Hard
24.1% Accepted
ArrayDynamic ProgrammingSorting
Medium
47.3% Accepted
ArrayGreedySorting
Medium
53.4% Accepted
StringGreedySorting
Medium
69.9% Accepted
StringGreedySorting
Medium
32.5% Accepted
ArrayTwo PointersSorting+1 more
Medium
38.7% Accepted
ArrayHash TableString+2 more
Medium
76.0% Accepted
Solution
ArrayGreedySorting+1 more
Medium
58.1% Accepted
ArrayDynamic ProgrammingGreedy+1 more
Medium
37.9% Accepted
ArrayHash TableSorting+2 more
Hard
26.7% Accepted
ArrayHash TableSorting+2 more
Hard
38.9% Accepted
ArrayGreedySorting
Hard
17.6% Accepted
ArrayBinary SearchSorting
Medium
50.3% Accepted
ArrayBinary SearchSliding Window+1 more
Medium
56.4% Accepted
Hash TableStringSorting
Medium
50.5% Accepted
ArrayMathBinary Indexed Tree+4 more
Hard
30.5% Accepted
ArrayBinary SearchDynamic Programming+1 more
Medium
37.3% Accepted
ArrayGreedySorting
Medium
18.2% Accepted
Hash TableStringDynamic Programming+2 more
Medium
60.2% Accepted
ArrayGreedySorting+2 more
Medium
66.1% Accepted
ArrayGreedySorting+1 more
Medium
32.4% Accepted
ArraySortingHeap (Priority Queue)
Medium
62.2% Accepted
ArrayTwo PointersStack+3 more
Medium
37.5% Accepted
Hash TableMathString+2 more
Medium
71.3% Accepted
ArraySorting
Medium
38.0% Accepted
ArraySliding WindowSorting
3656. Determine if a Simple Graph Exists
💰 Premium
Medium
49.5% Accepted
ArrayBinary SearchGraph+2 more
Medium
59.6% Accepted
ArrayGreedySorting
3730. Maximum Calories Burnt from Jumps
💰 Premium
Medium
75.2% Accepted
ArrayTwo PointersGreedy+1 more
Page 1 of 33
Depth-First Search (291 questions)
Medium
63.2% Accepted
93.9% Freq
Solution
ArrayDepth-First SearchBreadth-First Search+2 more
339. Nested List Weight Sum
💰 Premium
Medium
85.8% Accepted
93.2% Freq
Solution
Depth-First SearchBreadth-First Search
Medium
57.6% Accepted
93.0% Freq
Solution
Hash TableTreeDepth-First Search+3 more
Hard
55.8% Accepted
86.6% Freq
Solution
ArrayDepth-First SearchBreadth-First Search+2 more
Medium
68.0% Accepted
84.8% Freq
Solution
TreeDepth-First SearchBinary Tree
Medium
46.2% Accepted
80.1% Freq
Solution
ArrayStringBacktracking+2 more
Medium
50.2% Accepted
79.0% Freq
Solution
Depth-First SearchBreadth-First SearchGraph+1 more
Medium
68.6% Accepted
78.7% Freq
Solution
TreeDepth-First SearchBreadth-First Search+1 more
Hard
52.6% Accepted
77.4% Freq
Solution
Hash TableTreeDepth-First Search+3 more
269. Alien Dictionary
💰 Premium
Hard
36.9% Accepted
77.2% Freq
Solution
ArrayStringDepth-First Search+3 more
Medium
59.0% Accepted
77.1% Freq
Solution
ArrayDepth-First SearchBreadth-First Search+1 more
Hard
59.8% Accepted
76.9% Freq
Solution
StringTreeDepth-First Search+3 more
642. Design Search Autocomplete System
💰 Premium
Hard
49.6% Accepted
76.8% Freq
Solution
StringDepth-First SearchDesign+4 more
Hard
47.5% Accepted
76.3% Freq
Solution
Dynamic ProgrammingTreeDepth-First Search+1 more
Medium
44.6% Accepted
75.4% Freq
ArrayHash TableTree+3 more
Medium
76.1% Accepted
75.4% Freq
Solution
Depth-First SearchTrie
Hard
41.7% Accepted
75.2% Freq
Solution
Dynamic ProgrammingTreeDepth-First Search+1 more
Medium
78.6% Accepted
74.8% Freq
Solution
ArrayStringDepth-First Search+1 more
Medium
60.4% Accepted
74.8% Freq
Solution
ArrayHash TableString+4 more
Medium
54.4% Accepted
74.7% Freq
Solution
Depth-First SearchBreadth-First SearchGraph+1 more
Medium
69.2% Accepted
74.3% Freq
Solution
TreeDepth-First SearchBinary Tree
Medium
67.1% Accepted
73.7% Freq
Solution
Hash TableTreeDepth-First Search+2 more
Hard
73.1% Accepted
73.2% Freq
Solution
TreeDepth-First SearchBreadth-First Search
Hard
76.4% Accepted
71.7% Freq
Solution
ArrayBit ManipulationTree+1 more
Hard
55.9% Accepted
70.8% Freq
Solution
ArrayDynamic ProgrammingDepth-First Search+5 more
1740. Find Distance in a Binary Tree
💰 Premium
Medium
74.1% Accepted
70.1% Freq
Solution
Hash TableTreeDepth-First Search+2 more
Medium
60.1% Accepted
70.0% Freq
Solution
ArrayDepth-First SearchBreadth-First Search+1 more
Medium
62.0% Accepted
69.7% Freq
Solution
Linked ListDepth-First SearchDoubly-Linked List
Hard
56.0% Accepted
69.7% Freq
Dynamic ProgrammingDepth-First SearchBreadth-First Search+1 more
Medium
56.4% Accepted
69.2% Freq
Solution
StringTreeDepth-First Search+1 more
364. Nested List Weight Sum II
💰 Premium
Medium
66.1% Accepted
68.6% Freq
Solution
StackDepth-First SearchBreadth-First Search
Medium
73.5% Accepted
68.2% Freq
Solution
ArrayDepth-First SearchBreadth-First Search+2 more
Medium
63.6% Accepted
68.0% Freq
Solution
ArrayStringDepth-First Search+4 more
694. Number of Distinct Islands
💰 Premium
Medium
62.6% Accepted
68.0% Freq
Solution
Hash TableDepth-First SearchBreadth-First Search+2 more
Medium
77.2% Accepted
67.9% Freq
Solution
TreeDepth-First SearchBinary Tree
Hard
49.6% Accepted
67.8% Freq
Solution
ArrayStringDynamic Programming+3 more
536. Construct Binary Tree from String
💰 Premium
Medium
58.6% Accepted
67.8% Freq
Solution
StringStackTree+2 more
Medium
86.7% Accepted
67.4% Freq
Solution
TreeDepth-First SearchBinary Tree
Medium
69.5% Accepted
66.7% Freq
Solution
TreeDepth-First SearchBreadth-First Search
Medium
55.3% Accepted
66.7% Freq
Solution
Dynamic ProgrammingTreeDepth-First Search+1 more
Hard
43.9% Accepted
66.4% Freq
Depth-First SearchGraphEulerian Circuit
Hard
67.3% Accepted
66.1% Freq
Solution
ArrayBinary SearchDepth-First Search+4 more
Medium
74.9% Accepted
66.0% Freq
Solution
ArrayHash TableDepth-First Search
711. Number of Distinct Islands II
💰 Premium
Hard
55.1% Accepted
65.9% Freq
Solution
Hash TableDepth-First SearchBreadth-First Search+2 more
Medium
69.5% Accepted
65.9% Freq
Solution
Depth-First SearchBreadth-First SearchUnion Find+1 more
Hard
58.8% Accepted
65.8% Freq
Solution
Depth-First SearchGraphBiconnected Component
Medium
44.8% Accepted
65.8% Freq
Solution
TreeDepth-First SearchBreadth-First Search+1 more
Medium
68.4% Accepted
65.6% Freq
ArrayDepth-First SearchBreadth-First Search+1 more
Medium
60.0% Accepted
65.4% Freq
Solution
ArrayHash TableString+4 more
Hard
42.7% Accepted
64.8% Freq
Solution
ArrayHash TableDepth-First Search+3 more
Medium
65.4% Accepted
64.6% Freq
Solution
StackTreeDepth-First Search+3 more
Medium
66.3% Accepted
64.5% Freq
Solution
Linked ListTreeDepth-First Search+2 more
Medium
41.0% Accepted
64.5% Freq
Solution
Dynamic ProgrammingDepth-First SearchBreadth-First Search+3 more
Medium
52.9% Accepted
64.3% Freq
Solution
Depth-First SearchGraph
545. Boundary of Binary Tree
💰 Premium
Medium
47.6% Accepted
64.0% Freq
Solution
TreeDepth-First SearchBinary Tree
Medium
63.4% Accepted
63.9% Freq
Solution
Hash TableTreeDepth-First Search+1 more
366. Find Leaves of Binary Tree
💰 Premium
Medium
81.2% Accepted
63.7% Freq
Solution
TreeDepth-First SearchBinary Tree
Medium
65.6% Accepted
63.5% Freq
Solution
Linked ListStackTree+4 more
Medium
62.5% Accepted
62.9% Freq
Solution
Hash TableDepth-First SearchUnion Find+1 more
1242. Web Crawler Multithreaded
💰 Premium
Medium
50.6% Accepted
62.9% Freq
Depth-First SearchBreadth-First SearchConcurrency
Hard
62.5% Accepted
62.8% Freq
Solution
ArrayBinary SearchDepth-First Search+3 more
Medium
63.8% Accepted
62.5% Freq
Solution
Hash TableDepth-First SearchBreadth-First Search+1 more
1778. Shortest Path in a Hidden Grid
💰 Premium
Medium
44.3% Accepted
62.4% Freq
ArrayDepth-First SearchBreadth-First Search+2 more
Medium
44.0% Accepted
62.2% Freq
Solution
ArrayDepth-First SearchBreadth-First Search+2 more
Medium
64.5% Accepted
61.3% Freq
Solution
Depth-First SearchBreadth-First SearchUnion Find+1 more
Hard
61.9% Accepted
61.2% Freq
Solution
Depth-First SearchGraphTopological Sort
490. The Maze
💰 Premium
Medium
59.9% Accepted
61.1% Freq
Solution
ArrayDepth-First SearchBreadth-First Search+1 more
Medium
77.0% Accepted
61.0% Freq
ArrayDepth-First SearchMatrix
Medium
66.4% Accepted
60.8% Freq
Hash TableTreeDepth-First Search+1 more
Medium
57.8% Accepted
60.6% Freq
Solution
TreeDepth-First SearchBinary Search Tree+1 more
156. Binary Tree Upside Down
💰 Premium
Medium
64.9% Accepted
60.6% Freq
TreeDepth-First SearchBinary Tree
Hard
53.5% Accepted
60.3% Freq
Solution
ArrayDepth-First SearchBreadth-First Search+2 more
Medium
76.1% Accepted
60.3% Freq
Solution
TreeDepth-First SearchBinary Search Tree+1 more
Medium
69.4% Accepted
60.2% Freq
Solution
TreeDepth-First SearchBinary Search Tree+1 more
Medium
47.7% Accepted
60.1% Freq
Solution
StringDepth-First SearchDesign+1 more
Hard
68.4% Accepted
59.8% Freq
Solution
StringTreeDepth-First Search+1 more
Hard
29.5% Accepted
59.6% Freq
Dynamic ProgrammingTreeDepth-First Search
Hard
37.0% Accepted
59.4% Freq
Hash TableBinary SearchTree+2 more
Medium
44.1% Accepted
59.2% Freq
MathDepth-First SearchBreadth-First Search
Medium
44.6% Accepted
59.1% Freq
ArrayHash TableDepth-First Search+5 more
Medium
62.6% Accepted
59.0% Freq
Solution
ArrayDepth-First SearchGraph+1 more
Hard
65.6% Accepted
58.9% Freq
Solution
Depth-First SearchBreadth-First SearchGraph+1 more
Medium
58.5% Accepted
58.6% Freq
Solution
Depth-First SearchBreadth-First SearchUnion Find+1 more
Medium
60.4% Accepted
58.2% Freq
Solution
Hash TableTreeDepth-First Search+1 more
Hard
52.9% Accepted
57.8% Freq
ArrayMathTree+2 more
Medium
34.9% Accepted
56.9% Freq
Solution
TreeDepth-First SearchBinary Search Tree+1 more
Medium
83.4% Accepted
56.5% Freq
Solution
BacktrackingDepth-First SearchBreadth-First Search+1 more
Hard
45.6% Accepted
56.5% Freq
Dynamic ProgrammingTreeDepth-First Search+2 more
Medium
52.0% Accepted
56.4% Freq
Solution
Depth-First SearchBreadth-First SearchUnion Find+1 more
Medium
60.4% Accepted
56.3% Freq
Solution
TreeDepth-First SearchBreadth-First Search
Medium
69.6% Accepted
55.3% Freq
Solution
Linked ListStackTree+2 more
Medium
58.9% Accepted
55.2% Freq
Solution
Depth-First SearchBreadth-First SearchGraph+2 more
1506. Find Root of N-Ary Tree
💰 Premium
Medium
78.5% Accepted
55.0% Freq
Solution
Hash TableBit ManipulationTree+1 more
Medium
79.3% Accepted
54.7% Freq
Hash TableTreeDepth-First Search+1 more
Medium
49.6% Accepted
54.5% Freq
Solution
Depth-First SearchBreadth-First SearchUnion Find+1 more
Medium
64.7% Accepted
54.1% Freq
Solution
Hash TableTreeDepth-First Search+2 more
272. Closest Binary Search Tree Value II
💰 Premium
Hard
60.8% Accepted
53.9% Freq
Solution
Two PointersStackTree+4 more
Hard
53.9% Accepted
53.7% Freq
Solution
ArrayStringTree+3 more
Hard
58.2% Accepted
53.5% Freq
Solution
Depth-First SearchGraphEulerian Circuit
Hard
24.3% Accepted
53.5% Freq
ArrayBinary SearchDynamic Programming+2 more
Hard
58.8% Accepted
53.5% Freq
Solution
GreedyDepth-First SearchBreadth-First Search+2 more
Medium
77.6% Accepted
53.3% Freq
Solution
ArrayHash TableDepth-First Search+3 more
Medium
56.5% Accepted
53.1% Freq
Solution
Linked ListTreeDepth-First Search+2 more
Medium
69.7% Accepted
53.0% Freq
Solution
Depth-First SearchBreadth-First SearchGraph+1 more
Medium
65.7% Accepted
52.9% Freq
Solution
Depth-First SearchBreadth-First SearchUnion Find+1 more
Medium
46.2% Accepted
52.7% Freq
Solution
TreeDepth-First SearchBinary Tree
Hard
65.4% Accepted
52.7% Freq
Solution
Dynamic ProgrammingTreeDepth-First Search+1 more
Medium
55.0% Accepted
52.5% Freq
Depth-First SearchBreadth-First SearchGraph
1257. Smallest Common Region
💰 Premium
Medium
68.2% Accepted
52.1% Freq
Solution
ArrayHash TableString+3 more
Hard
15.2% Accepted
52.1% Freq
ArrayHash TableTree+2 more
Medium
72.4% Accepted
51.6% Freq
Solution
ArrayHash TableTree+2 more
Medium
80.9% Accepted
51.6% Freq
Solution
Hash TableTreeDepth-First Search+2 more
Medium
69.2% Accepted
51.6% Freq
Solution
TreeDepth-First SearchBinary Tree
Medium
66.9% Accepted
50.8% Freq
Solution
Depth-First SearchBreadth-First SearchUnion Find+1 more
Medium
62.3% Accepted
50.3% Freq
Solution
ArrayBinary SearchDepth-First Search+4 more
Hard
46.6% Accepted
50.3% Freq
Dynamic ProgrammingBit ManipulationTree+2 more
Medium
61.2% Accepted
50.0% Freq
Solution
BacktrackingTreeDepth-First Search+1 more
Hard
32.8% Accepted
49.7% Freq
ArrayDynamic ProgrammingTree+1 more
Medium
49.6% Accepted
49.5% Freq
Solution
ArrayMathDepth-First Search+3 more
Medium
79.0% Accepted
49.0% Freq
Solution
Hash TableTreeDepth-First Search+2 more
Hard
54.9% Accepted
48.6% Freq
Solution
ArrayTreeDepth-First Search+2 more
Medium
77.2% Accepted
48.3% Freq
Solution
TreeDepth-First SearchBinary Tree
333. Largest BST Subtree
💰 Premium
Medium
45.7% Accepted
48.1% Freq
Solution
Dynamic ProgrammingTreeDepth-First Search+2 more
1236. Web Crawler
💰 Premium
Medium
68.7% Accepted
47.7% Freq
Solution
StringDepth-First SearchBreadth-First Search+1 more
Hard
67.2% Accepted
47.6% Freq
Solution
Depth-First SearchBreadth-First SearchUnion Find+1 more
Medium
66.5% Accepted
47.2% Freq
Solution
TreeDepth-First SearchBinary Search Tree+1 more
1245. Tree Diameter
💰 Premium
Medium
61.2% Accepted
47.0% Freq
Solution
TreeDepth-First SearchBreadth-First Search+2 more
Hard
44.6% Accepted
46.6% Freq
ArrayDynamic ProgrammingBit Manipulation+3 more
Medium
42.2% Accepted
46.6% Freq
Solution
Depth-First SearchBreadth-First SearchGraph+1 more
Medium
59.0% Accepted
46.4% Freq
Solution
StringTreeDepth-First Search+4 more
Hard
69.5% Accepted
46.2% Freq
Solution
TreeDepth-First Search
Medium
57.2% Accepted
46.1% Freq
Solution
Hash TableStringDepth-First Search+2 more
Hard
55.8% Accepted
45.9% Freq
Solution
ArrayHash TableString+3 more
Medium
73.5% Accepted
45.9% Freq
Solution
ArrayDepth-First SearchBreadth-First Search+3 more
Medium
75.2% Accepted
45.5% Freq
Solution
Depth-First SearchBreadth-First SearchGraph
1102. Path With Maximum Minimum Value
💰 Premium
Medium
54.3% Accepted
45.4% Freq
Solution
ArrayBinary SearchDepth-First Search+4 more
Hard
60.7% Accepted
45.0% Freq
Solution
ArrayBinary SearchDepth-First Search+2 more
Medium
54.3% Accepted
44.9% Freq
Solution
TreeDepth-First SearchBinary Tree
1522. Diameter of N-Ary Tree
💰 Premium
Medium
75.4% Accepted
44.9% Freq
Solution
TreeDepth-First Search
Hard
83.3% Accepted
44.5% Freq
Solution
StringTreeDepth-First Search+1 more
Medium
72.4% Accepted
44.2% Freq
Solution
TreeDepth-First SearchBinary Tree
Medium
66.9% Accepted
44.2% Freq
Solution
ArrayDepth-First SearchBreadth-First Search+2 more
Medium
71.0% Accepted
44.1% Freq
Solution
TreeDepth-First SearchBinary Search Tree+1 more
Hard
45.7% Accepted
43.6% Freq
ArrayHash TableBit Manipulation+2 more
Hard
35.5% Accepted
43.6% Freq
MathDynamic ProgrammingTree+2 more
Medium
60.4% Accepted
43.6% Freq
ArrayStringDepth-First Search+2 more
Hard
48.8% Accepted
43.6% Freq
ArrayTreeDepth-First Search
Hard
21.0% Accepted
43.6% Freq
ArrayDynamic ProgrammingTree+1 more
737. Sentence Similarity II
💰 Premium
Medium
50.9% Accepted
43.3% Freq
Solution
ArrayHash TableString+3 more
Medium
62.0% Accepted
43.1% Freq
Solution
Depth-First SearchBreadth-First SearchGraph+1 more
Medium
85.8% Accepted
42.8% Freq
Solution
TreeDepth-First SearchBreadth-First Search+1 more
Medium
43.1% Accepted
42.7% Freq
Solution
TreeDepth-First SearchBinary Tree
Medium
66.5% Accepted
42.6% Freq
Solution
ArrayDepth-First SearchBreadth-First Search
505. The Maze II
💰 Premium
Medium
54.5% Accepted
42.4% Freq
Solution
ArrayDepth-First SearchBreadth-First Search+4 more
Medium
31.3% Accepted
42.4% Freq
ArrayDynamic ProgrammingBacktracking+3 more
Medium
79.4% Accepted
42.3% Freq
Solution
StringDepth-First SearchBreadth-First Search+1 more
Hard
66.4% Accepted
42.1% Freq
Solution
Depth-First SearchGraphEulerian Circuit
Medium
40.7% Accepted
42.0% Freq
ArrayDynamic ProgrammingTree+1 more
Hard
36.7% Accepted
41.9% Freq
TreeDepth-First SearchBreadth-First Search+1 more
Medium
65.4% Accepted
41.8% Freq
Solution
Depth-First SearchBreadth-First SearchGraph
Medium
56.3% Accepted
41.7% Freq
ArrayDepth-First SearchBreadth-First Search+2 more
Medium
71.2% Accepted
41.6% Freq
Solution
ArrayDepth-First SearchBreadth-First Search+2 more
Hard
46.3% Accepted
41.5% Freq
Depth-First SearchBreadth-First SearchGraph+2 more
431. Encode N-ary Tree to Binary Tree
💰 Premium
Hard
80.4% Accepted
41.3% Freq
Solution
TreeDepth-First SearchBreadth-First Search+2 more
499. The Maze III
💰 Premium
Hard
51.0% Accepted
41.3% Freq
Solution
ArrayStringDepth-First Search+5 more
Hard
57.2% Accepted
41.1% Freq
Solution
TreeDepth-First SearchBreadth-First Search+1 more
Medium
68.5% Accepted
40.5% Freq
Solution
Hash TableTreeDepth-First Search+1 more
261. Graph Valid Tree
💰 Premium
Medium
49.6% Accepted
40.3% Freq
Solution
Depth-First SearchBreadth-First SearchUnion Find+1 more
Medium
59.6% Accepted
40.1% Freq
Solution
Depth-First SearchBreadth-First SearchGraph+1 more
Medium
67.5% Accepted
39.9% Freq
Solution
TreeDepth-First SearchBreadth-First Search+1 more
Hard
40.8% Accepted
39.8% Freq
ArrayHash TableMath+4 more
Medium
49.6% Accepted
39.4% Freq
Solution
TreeDepth-First SearchBinary Tree
Hard
41.0% Accepted
39.4% Freq
ArrayTreeDepth-First Search+2 more
Medium
59.9% Accepted
38.8% Freq
Solution
ArrayHash TableTree+4 more
Hard
50.2% Accepted
38.4% Freq
Solution
Depth-First SearchBreadth-First SearchGraph+1 more
250. Count Univalue Subtrees
💰 Premium
Medium
57.3% Accepted
37.9% Freq
Solution
TreeDepth-First SearchBinary Tree
Medium
67.4% Accepted
37.9% Freq
Solution
ArrayTreeDepth-First Search+2 more
Hard
47.2% Accepted
37.8% Freq
ArrayDynamic ProgrammingTree+2 more
Hard
18.6% Accepted
37.8% Freq
ArrayHash TableString+3 more
Medium
43.3% Accepted
37.8% Freq
Binary SearchDepth-First SearchBreadth-First Search+2 more
Medium
48.8% Accepted
37.7% Freq
StringStackDepth-First Search
Medium
58.2% Accepted
37.2% Freq
Solution
Depth-First SearchBreadth-First SearchUnion Find+1 more
Medium
54.1% Accepted
37.0% Freq
ArrayHash TableString+2 more
Medium
51.6% Accepted
37.0% Freq
ArrayDepth-First SearchBreadth-First Search+2 more
Medium
66.0% Accepted
37.0% Freq
Solution
TreeDepth-First SearchBreadth-First Search+1 more
Medium
59.7% Accepted
36.9% Freq
ArrayDepth-First SearchBreadth-First Search+2 more
Medium
64.5% Accepted
36.4% Freq
Solution
TreeDepth-First SearchBreadth-First Search+1 more
Medium
72.8% Accepted
36.2% Freq
Solution
Hash TableTreeDepth-First Search+2 more
Medium
68.9% Accepted
35.8% Freq
Solution
ArrayHash TableTree+2 more
Hard
36.6% Accepted
35.6% Freq
Binary SearchDynamic ProgrammingBit Manipulation+4 more
Medium
66.3% Accepted
35.0% Freq
Solution
TreeDepth-First SearchBreadth-First Search+1 more
Hard
36.0% Accepted
34.6% Freq
ArrayHash TableDepth-First Search+1 more
Medium
73.6% Accepted
34.4% Freq
Solution
TreeDepth-First SearchBreadth-First Search+1 more
Medium
48.1% Accepted
33.8% Freq
Solution
TreeDepth-First SearchBinary Tree
Medium
72.0% Accepted
33.7% Freq
Solution
TreeDepth-First SearchBreadth-First Search+1 more
Medium
52.0% Accepted
33.6% Freq
ArrayTreeDepth-First Search+1 more
Hard
36.0% Accepted
33.0% Freq
ArrayDynamic ProgrammingBit Manipulation+3 more
Hard
35.6% Accepted
32.6% Freq
Solution
Depth-First SearchBreadth-First SearchUnion Find+1 more
Medium
61.6% Accepted
32.1% Freq
TreeDepth-First SearchSorting+1 more
Medium
44.0% Accepted
31.5% Freq
Solution
TreeDepth-First SearchBreadth-First Search+3 more
Medium
84.7% Accepted
31.1% Freq
Solution
Divide and ConquerGreedyTree+3 more
Medium
75.5% Accepted
30.5% Freq
Solution
ArrayDepth-First SearchBreadth-First Search+1 more
Medium
88.3% Accepted
29.7% Freq
Solution
TreeDepth-First SearchBinary Search Tree+1 more
Medium
80.1% Accepted
28.8% Freq
Solution
TreeDepth-First SearchBinary Search Tree+2 more
Hard
59.1% Accepted
27.3% Freq
Solution
StringDynamic ProgrammingDepth-First Search+1 more
Medium
52.7% Accepted
27.0% Freq
TreeDepth-First SearchBinary Tree
Hard
57.5% Accepted
25.8% Freq
Solution
ArrayDynamic ProgrammingDepth-First Search+5 more
Medium
86.7% Accepted
24.6% Freq
Solution
TreeDepth-First SearchBreadth-First Search+1 more
285. Inorder Successor in BST
💰 Premium
Medium
51.0% Accepted
23.6% Freq
Solution
TreeDepth-First SearchBinary Search Tree+1 more
Medium
43.5% Accepted
23.2% Freq
ArrayBinary SearchTree+3 more
Medium
75.6% Accepted
22.3% Freq
Solution
Hash TableTreeDepth-First Search+2 more
Medium
66.9% Accepted
22.2% Freq
Solution
Dynamic ProgrammingTreeDepth-First Search+1 more
Medium
70.4% Accepted
21.3% Freq
Solution
StringTreeDepth-First Search+1 more
Medium
86.4% Accepted
21.3% Freq
Solution
TreeDepth-First SearchBreadth-First Search+1 more
Medium
69.6% Accepted
21.0% Freq
Solution
TreeDepth-First SearchBinary Tree
Medium
72.9% Accepted
18.3% Freq
Solution
ArrayDepth-First SearchBreadth-First Search+2 more
Medium
77.7% Accepted
16.6% Freq
Solution
Depth-First SearchBreadth-First SearchUnion Find+1 more
Medium
78.1% Accepted
14.5% Freq
Solution
TreeDepth-First SearchBinary Tree
Medium
64.1% Accepted
Solution
TreeDepth-First SearchBreadth-First Search+1 more
663. Equal Tree Partition
💰 Premium
Medium
42.3% Accepted
Solution
TreeDepth-First SearchBinary Tree
Medium
49.8% Accepted
Solution
MathBit ManipulationDepth-First Search+1 more
742. Closest Leaf in a Binary Tree
💰 Premium
Medium
47.3% Accepted
Solution
TreeDepth-First SearchBreadth-First Search+1 more
Hard
45.2% Accepted
Solution
ArrayHash TableDepth-First Search+3 more
Medium
51.4% Accepted
Solution
TreeDepth-First SearchBinary Tree
Medium
61.0% Accepted
Solution
StringBacktrackingTree+2 more
Medium
50.5% Accepted
ArrayDepth-First SearchBreadth-First Search+1 more
Medium
53.0% Accepted
Depth-First SearchBreadth-First SearchGraph
Medium
54.4% Accepted
TreeDepth-First SearchBinary Tree
1120. Maximum Average Subtree
💰 Premium
Medium
66.9% Accepted
Solution
TreeDepth-First SearchBinary Tree
Medium
84.1% Accepted
Solution
Hash TableTreeDepth-First Search+3 more
Medium
51.9% Accepted
Solution
Linked ListTreeDepth-First Search+1 more
Medium
49.5% Accepted
ArrayDepth-First SearchBreadth-First Search+2 more
Medium
47.4% Accepted
TreeDepth-First SearchBreadth-First Search+1 more
Medium
68.3% Accepted
Solution
Bit ManipulationTreeDepth-First Search+2 more
1490. Clone N-ary Tree
💰 Premium
Medium
83.2% Accepted
Solution
Hash TableTreeDepth-First Search+1 more
Medium
55.2% Accepted
Solution
Hash TableTreeDepth-First Search+2 more
Medium
71.8% Accepted
Solution
TreeDepth-First SearchBinary Tree
Hard
58.9% Accepted
Solution
ArrayDepth-First SearchBreadth-First Search+2 more
Medium
71.4% Accepted
Hash TableTreeDepth-First Search+2 more
1660. Correct a Binary Tree
💰 Premium
Medium
74.2% Accepted
Solution
Hash TableTreeDepth-First Search+2 more
1666. Change the Root of a Binary Tree
💰 Premium
Medium
75.0% Accepted
TreeDepth-First SearchBinary Tree
Medium
48.9% Accepted
ArrayDepth-First SearchUnion Find
1810. Minimum Path Cost in a Hidden Grid
💰 Premium
Medium
58.4% Accepted
ArrayDepth-First SearchBreadth-First Search+5 more
Medium
51.9% Accepted
ArrayDepth-First SearchGraph+1 more
1858. Longest Word With All Prefixes
💰 Premium
Medium
71.9% Accepted
Solution
ArrayStringDepth-First Search+1 more
Medium
77.2% Accepted
Solution
TreeDepth-First SearchBinary Tree
Hard
47.2% Accepted
Dynamic ProgrammingTreeDepth-First Search+1 more
Hard
45.3% Accepted
Solution
Depth-First SearchBreadth-First SearchUnion Find+2 more
Hard
73.2% Accepted
Solution
Depth-First SearchBreadth-First SearchUnion Find+1 more
Hard
43.6% Accepted
ArrayDepth-First SearchUnion Find+1 more
Hard
56.6% Accepted
Dynamic ProgrammingTreeDepth-First Search+1 more
Medium
56.1% Accepted
Dynamic ProgrammingTreeDepth-First Search
2445. Number of Nodes With Value One
💰 Premium
Medium
65.7% Accepted
ArrayTreeDepth-First Search+2 more
Hard
50.8% Accepted
TreeDepth-First SearchGraph+1 more
Medium
27.6% Accepted
ArrayDynamic ProgrammingDepth-First Search+2 more
Hard
47.5% Accepted
ArrayHash TableDynamic Programming+2 more
Medium
70.4% Accepted
Solution
ArrayDepth-First SearchBreadth-First Search+2 more
Medium
66.6% Accepted
StackTreeDepth-First Search+1 more
2773. Height of Special Binary Tree
💰 Premium
Medium
74.2% Accepted
TreeDepth-First SearchBreadth-First Search+1 more
2792. Count Nodes That Are Great Enough
💰 Premium
Hard
56.2% Accepted
Divide and ConquerTreeDepth-First Search+1 more
2852. Sum of Remoteness of All Cells
💰 Premium
Medium
70.9% Accepted
Solution
ArrayHash TableDepth-First Search+3 more
Medium
46.9% Accepted
Dynamic ProgrammingTreeDepth-First Search
Hard
36.9% Accepted
Dynamic ProgrammingTreeDepth-First Search+2 more
3004. Maximum Subtree of the Same Color
💰 Premium
Medium
57.6% Accepted
ArrayDynamic ProgrammingTree+1 more
Medium
55.0% Accepted
ArrayTreeDepth-First Search
Medium
69.0% Accepted
TreeDepth-First SearchBreadth-First Search+1 more
Hard
25.5% Accepted
ArrayMathDepth-First Search+3 more
Hard
26.5% Accepted
Dynamic ProgrammingTreeDepth-First Search+1 more
Medium
55.0% Accepted
TreeDepth-First Search
Medium
50.0% Accepted
Depth-First SearchBreadth-First SearchGraph
3383. Minimum Runes to Add to Cast Spell
💰 Premium
Hard
42.7% Accepted
ArrayDepth-First SearchBreadth-First Search+3 more
Medium
47.8% Accepted
ArrayHash TableDepth-First Search+3 more
Hard
44.0% Accepted
ArrayDynamic ProgrammingTree+1 more
Medium
53.3% Accepted
MathTreeDepth-First Search
Hard
59.8% Accepted
ArrayMathDynamic Programming+3 more
Hard
27.6% Accepted
ArrayTreeDepth-First Search+1 more
Hard
29.5% Accepted
ArrayBinary SearchDepth-First Search+3 more
Page 1 of 25
Binary Search (290 questions)
Hard
45.1% Accepted
94.0% Freq
Solution
ArrayBinary SearchDivide and Conquer
Medium
48.7% Accepted
92.5% Freq
Solution
ArrayMathBinary Search+2 more
Medium
49.3% Accepted
88.9% Freq
Solution
ArrayBinary Search
Medium
46.6% Accepted
87.8% Freq
Solution
ArrayBinary Search
Hard
49.0% Accepted
85.4% Freq
Solution
ArrayBinary Search
Medium
44.4% Accepted
85.3% Freq
Solution
ArrayBinary SearchGreedy+3 more
Medium
39.0% Accepted
84.6% Freq
Solution
ArrayBinary SearchSegment Tree+1 more
Medium
43.6% Accepted
83.4% Freq
Solution
ArrayBinary Search
Medium
59.2% Accepted
82.0% Freq
Solution
ArrayBinary Search
362. Design Hit Counter
💰 Premium
Medium
69.3% Accepted
81.6% Freq
Solution
ArrayBinary SearchDesign+2 more
Hard
63.7% Accepted
81.5% Freq
Solution
ArrayBinary SearchDynamic Programming+1 more
Medium
66.8% Accepted
81.4% Freq
Solution
ArrayBinary SearchSliding Window+1 more
Medium
47.7% Accepted
80.8% Freq
Solution
ArrayBinary Search
Medium
49.6% Accepted
80.5% Freq
Solution
Hash TableStringBinary Search+1 more
Hard
54.5% Accepted
80.5% Freq
Solution
ArrayBinary SearchDynamic Programming+1 more
Medium
50.9% Accepted
80.3% Freq
Solution
ArrayBinary SearchDynamic Programming+2 more
Medium
65.1% Accepted
79.8% Freq
Solution
ArrayStringBinary Search+3 more
Hard
59.2% Accepted
78.3% Freq
Solution
ArrayBinary SearchDynamic Programming+2 more
Medium
56.4% Accepted
77.5% Freq
Solution
ArrayTwo PointersBinary Search+2 more
Medium
62.1% Accepted
77.2% Freq
Solution
ArrayBinary SearchBit Manipulation+1 more
Medium
67.1% Accepted
76.5% Freq
Solution
ArrayBinary Search
Medium
73.0% Accepted
76.2% Freq
Solution
ArrayBinary Search
Medium
58.6% Accepted
76.0% Freq
Solution
ArrayBinary SearchDynamic Programming
Hard
30.9% Accepted
75.2% Freq
Solution
StringBinary SearchSliding Window+3 more
Hard
29.3% Accepted
74.0% Freq
ArrayHash TableBinary Search+1 more
Hard
37.5% Accepted
73.7% Freq
Solution
ArrayBinary SearchDynamic Programming+1 more
Hard
61.0% Accepted
72.9% Freq
Solution
ArrayBinary SearchSliding Window+1 more
Medium
49.1% Accepted
72.6% Freq
Solution
ArrayTwo PointersBinary Search+3 more
Medium
63.5% Accepted
71.7% Freq
Solution
ArrayTwo PointersBinary Search+1 more
Medium
36.7% Accepted
70.7% Freq
Solution
ArrayHash TableBinary Search+1 more
Medium
55.9% Accepted
70.3% Freq
Solution
ArrayBinary Search
1060. Missing Element in Sorted Array
💰 Premium
Medium
59.5% Accepted
69.8% Freq
Solution
ArrayBinary Search
Medium
56.1% Accepted
69.7% Freq
Solution
ArrayTwo PointersBinary Search+2 more
Hard
33.1% Accepted
69.5% Freq
Solution
ArrayBinary SearchDivide and Conquer+4 more
Medium
56.2% Accepted
69.3% Freq
Solution
ArrayBinary SearchDivide and Conquer+1 more
Medium
53.0% Accepted
69.3% Freq
Solution
ArrayBinary SearchMatrix
Hard
22.5% Accepted
69.3% Freq
ArrayTwo PointersBinary Search+4 more
Medium
39.8% Accepted
68.9% Freq
Two PointersStringBinary Search+3 more
Medium
35.5% Accepted
68.3% Freq
ArrayBinary SearchOrdered Set
Hard
17.7% Accepted
68.3% Freq
ArrayBinary SearchBinary Indexed Tree+1 more
Medium
53.4% Accepted
67.3% Freq
Solution
ArrayBinary SearchSliding Window+1 more
Medium
29.2% Accepted
67.1% Freq
ArrayTwo PointersBinary Search+1 more
Medium
39.4% Accepted
67.0% Freq
Solution
ArrayHash TableBinary Search+3 more
Medium
39.0% Accepted
66.7% Freq
Solution
ArrayHash TableBinary Search+2 more
Medium
40.8% Accepted
66.4% Freq
ArrayTwo PointersBinary Search+1 more
Hard
29.4% Accepted
66.3% Freq
Solution
MathBinary SearchDynamic Programming
Hard
67.3% Accepted
66.1% Freq
Solution
ArrayBinary SearchDepth-First Search+4 more
Medium
51.4% Accepted
65.7% Freq
Solution
ArrayTwo PointersBinary Search+2 more
Medium
45.8% Accepted
65.6% Freq
ArrayHash TableBinary Search+2 more
Medium
50.6% Accepted
65.5% Freq
Solution
ArrayHash TableString+4 more
Medium
64.1% Accepted
64.3% Freq
Solution
ArrayTwo PointersBinary Search
Medium
49.4% Accepted
64.1% Freq
Solution
ArrayTwo PointersBinary Search+1 more
Medium
64.9% Accepted
63.5% Freq
Solution
ArrayBinary SearchDynamic Programming+1 more
Medium
64.9% Accepted
63.4% Freq
Solution
ArrayBinary Search
Medium
50.2% Accepted
63.3% Freq
Solution
ArrayBinary SearchSliding Window+1 more
Medium
29.9% Accepted
62.8% Freq
ArrayMathBinary Search+3 more
Hard
62.5% Accepted
62.8% Freq
Solution
ArrayBinary SearchDepth-First Search+3 more
Medium
45.0% Accepted
62.6% Freq
Solution
ArrayHash TableTwo Pointers+4 more
Medium
34.3% Accepted
62.2% Freq
Solution
ArrayBinary SearchStack+2 more
Medium
48.5% Accepted
61.8% Freq
Solution
ArrayBinary SearchBreadth-First Search+3 more
Medium
64.0% Accepted
61.1% Freq
Solution
ArrayBinary SearchSorting+2 more
Medium
49.2% Accepted
61.0% Freq
Solution
ArrayTwo PointersBinary Search+1 more
Medium
71.6% Accepted
60.8% Freq
Solution
ArrayBinary SearchSorting
Medium
55.0% Accepted
59.5% Freq
Solution
ArrayBinary SearchMatrix+1 more
Hard
37.0% Accepted
59.4% Freq
Hash TableBinary SearchTree+2 more
Medium
49.7% Accepted
59.3% Freq
Solution
ArrayHash TableBinary Search+1 more
Hard
40.8% Accepted
59.1% Freq
Solution
ArrayBinary SearchInteractive
Medium
50.0% Accepted
59.0% Freq
Solution
ArrayBinary Search
Hard
42.2% Accepted
58.3% Freq
StringBinary SearchEnumeration
Medium
39.4% Accepted
58.1% Freq
Solution
ArrayBinary Search
Medium
53.3% Accepted
57.9% Freq
Solution
ArrayBinary Search
1885. Count Pairs in Two Arrays
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Medium
60.3% Accepted
57.1% Freq
Solution
ArrayTwo PointersBinary Search+1 more
Medium
53.9% Accepted
56.8% Freq
ArrayBinary SearchMatrix
Medium
39.3% Accepted
56.6% Freq
Solution
ArrayBinary Search
Medium
67.4% Accepted
56.5% Freq
ArrayBinary SearchGreedy+1 more
Medium
36.6% Accepted
56.4% Freq
Solution
MathTwo PointersBinary Search
Medium
47.0% Accepted
56.2% Freq
ArrayStringBinary Search+1 more
Medium
39.9% Accepted
56.1% Freq
Solution
ArrayBinary SearchSliding Window+2 more
Medium
37.0% Accepted
56.1% Freq
ArrayHash TableBinary Search+1 more
Medium
43.1% Accepted
55.9% Freq
Binary SearchUnion FindGraph+1 more
Medium
58.8% Accepted
55.8% Freq
Solution
ArrayBinary Search
Medium
39.8% Accepted
55.4% Freq
ArrayBinary Search
Hard
53.4% Accepted
55.3% Freq
Solution
MathBinary Search
Medium
45.2% Accepted
55.0% Freq
Solution
ArrayHash TableTwo Pointers+2 more
Hard
43.1% Accepted
54.5% Freq
Solution
ArrayBinary SearchDivide and Conquer+4 more
Hard
40.8% Accepted
54.4% Freq
Solution
ArrayBinary SearchDivide and Conquer+4 more
Hard
33.0% Accepted
54.4% Freq
ArrayBinary SearchSorting+1 more
Hard
24.1% Accepted
54.4% Freq
ArrayTwo PointersBinary Search+5 more
Medium
49.5% Accepted
54.0% Freq
Solution
ArrayTwo PointersBinary Search+1 more
Medium
44.6% Accepted
53.9% Freq
Binary SearchUnion FindGraph+1 more
Hard
36.8% Accepted
53.9% Freq
ArrayBinary SearchBreadth-First Search+1 more
Hard
17.5% Accepted
53.8% Freq
ArrayBinary SearchDynamic Programming+4 more
Hard
24.3% Accepted
53.5% Freq
ArrayBinary SearchDynamic Programming+2 more
Hard
32.4% Accepted
53.0% Freq
Solution
ArrayBinary SearchQueue+4 more
Medium
51.2% Accepted
52.4% Freq
Solution
ArrayBinary SearchDynamic Programming+3 more
Hard
20.6% Accepted
52.1% Freq
ArrayBinary SearchSegment Tree+1 more
Medium
54.9% Accepted
52.1% Freq
ArrayHash TableBinary Search+2 more
Medium
58.2% Accepted
51.6% Freq
Solution
ArrayBinary SearchDesign+2 more
Hard
57.5% Accepted
51.2% Freq
Solution
ArrayHash TableBinary Search+3 more
Hard
36.1% Accepted
50.3% Freq
Solution
MathBinary Search
Medium
62.3% Accepted
50.3% Freq
Solution
ArrayBinary SearchDepth-First Search+4 more
Hard
48.6% Accepted
49.8% Freq
ArrayHash TableBinary Search+1 more
Medium
40.3% Accepted
49.4% Freq
Solution
ArrayHash TableBinary Search+2 more
Hard
54.0% Accepted
49.1% Freq
Solution
ArrayBinary SearchSliding Window+2 more
Medium
38.8% Accepted
49.0% Freq
Solution
ArrayMathBinary Search+4 more
Hard
54.8% Accepted
48.8% Freq
Solution
ArrayBinary SearchDynamic Programming+1 more
Hard
62.3% Accepted
48.6% Freq
Solution
ArrayBinary SearchSliding Window+1 more
Hard
37.7% Accepted
48.5% Freq
ArrayBinary SearchDivide and Conquer+4 more
Hard
49.8% Accepted
48.1% Freq
Solution
ArrayBinary SearchGreedy+1 more
Hard
65.8% Accepted
48.1% Freq
Solution
ArrayBinary SearchDivide and Conquer+4 more
Medium
38.9% Accepted
47.7% Freq
Solution
MathBinary SearchGreedy
Medium
35.2% Accepted
47.6% Freq
ArrayBinary SearchGreedy+1 more
Hard
44.3% Accepted
47.3% Freq
Solution
ArrayBinary Search
Medium
46.4% Accepted
47.1% Freq
ArrayTwo PointersString+1 more
Medium
66.8% Accepted
47.0% Freq
Solution
ArrayBinary Search
Medium
69.3% Accepted
47.0% Freq
Solution
StringBinary SearchSliding Window+1 more
Medium
36.6% Accepted
46.6% Freq
ArrayHash TableBinary Search+2 more
Hard
53.2% Accepted
46.5% Freq
ArrayBinary SearchLine Sweep+2 more
Hard
46.1% Accepted
46.4% Freq
Solution
ArrayTwo PointersBinary Search+1 more
Hard
52.2% Accepted
46.2% Freq
Solution
ArrayHash TableBinary Search+1 more
Hard
50.3% Accepted
46.2% Freq
Solution
ArrayTwo PointersBinary Search+4 more
Medium
52.8% Accepted
46.1% Freq
Solution
ArrayTwo PointersBinary Search+1 more
Medium
47.5% Accepted
46.0% Freq
Solution
ArrayBinary Search
1102. Path With Maximum Minimum Value
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Medium
54.3% Accepted
45.4% Freq
Solution
ArrayBinary SearchDepth-First Search+4 more
Hard
60.7% Accepted
45.0% Freq
Solution
ArrayBinary SearchDepth-First Search+2 more
Hard
29.9% Accepted
45.0% Freq
ArrayBinary SearchDynamic Programming+4 more
Medium
46.4% Accepted
45.0% Freq
Solution
ArrayBinary SearchDynamic Programming+2 more
Hard
46.6% Accepted
44.9% Freq
Solution
ArrayBinary SearchGreedy+2 more
Hard
16.6% Accepted
44.9% Freq
ArrayBinary SearchGreedy
Hard
71.0% Accepted
44.3% Freq
Solution
Binary SearchDesignSegment Tree+2 more
Medium
59.7% Accepted
44.1% Freq
Solution
ArrayBinary Search
Medium
43.6% Accepted
44.1% Freq
Solution
ArrayBinary SearchPrefix Sum
Hard
37.7% Accepted
43.6% Freq
ArrayBinary SearchSliding Window+2 more
Medium
62.8% Accepted
43.5% Freq
Solution
ArrayBinary SearchGreedy
Medium
54.7% Accepted
43.1% Freq
ArrayBinary SearchSorting
Medium
73.0% Accepted
42.5% Freq
Solution
ArrayBinary SearchInteractive
Medium
45.8% Accepted
42.4% Freq
ArrayBinary SearchSorting
Hard
20.4% Accepted
42.4% Freq
ArrayHash TableBinary Search+3 more
1062. Longest Repeating Substring
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Medium
63.3% Accepted
42.0% Freq
Solution
StringBinary SearchDynamic Programming+3 more
Medium
23.9% Accepted
41.3% Freq
ArrayBinary SearchGreedy+3 more
Medium
59.3% Accepted
40.9% Freq
Solution
StringBinary SearchSliding Window+1 more
1055. Shortest Way to Form String
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Medium
61.4% Accepted
40.5% Freq
Solution
Two PointersStringBinary Search+1 more
Medium
30.9% Accepted
40.3% Freq
MathBinary SearchCombinatorics+1 more
Medium
37.7% Accepted
40.3% Freq
ArrayHash TableBinary Search+2 more
Hard
46.3% Accepted
40.2% Freq
ArrayBinary SearchDivide and Conquer+4 more
Hard
45.0% Accepted
39.4% Freq
Solution
ArrayBinary SearchMatrix+2 more
Medium
33.8% Accepted
39.0% Freq
ArrayTwo PointersBinary Search+1 more
Hard
30.3% Accepted
38.5% Freq
ArrayMathBinary Search+1 more
Hard
32.0% Accepted
38.5% Freq
ArrayBinary SearchStack+1 more
Hard
38.7% Accepted
38.5% Freq
Binary SearchGreedyUnion Find+2 more
Medium
53.7% Accepted
38.3% Freq
ArrayBinary SearchMatrix+1 more
Medium
43.3% Accepted
37.8% Freq
Binary SearchDepth-First SearchBreadth-First Search+2 more
Hard
57.8% Accepted
37.3% Freq
Solution
ArrayBinary SearchDynamic Programming+1 more
Hard
53.7% Accepted
36.4% Freq
Solution
ArrayBinary Search
Hard
44.0% Accepted
36.4% Freq
Solution
ArrayMathString+2 more
Hard
34.3% Accepted
36.1% Freq
ArrayHash TableMath+3 more
Hard
39.9% Accepted
35.7% Freq
ArrayBinary Search
Hard
36.6% Accepted
35.6% Freq
Binary SearchDynamic ProgrammingBit Manipulation+4 more
Hard
40.9% Accepted
35.3% Freq
ArrayBinary SearchStack+3 more
Medium
45.6% Accepted
35.1% Freq
Hash TableStringBinary Search+3 more
Medium
63.1% Accepted
34.0% Freq
Solution
ArrayTwo PointersBinary Search+2 more
Hard
64.3% Accepted
32.9% Freq
Solution
ArrayTwo PointersBinary Search+2 more
Medium
62.5% Accepted
32.8% Freq
Solution
ArrayBinary SearchDesign+3 more
Medium
58.2% Accepted
32.7% Freq
Solution
ArrayBinary SearchSliding Window+1 more
Medium
31.8% Accepted
31.7% Freq
ArrayBinary SearchSorting+1 more
Medium
62.1% Accepted
31.7% Freq
Solution
ArrayBinary SearchSorting
Medium
60.8% Accepted
31.3% Freq
Solution
ArrayBinary SearchDynamic Programming+2 more
Medium
68.8% Accepted
30.5% Freq
Solution
ArrayTwo PointersBinary Search+2 more
Medium
53.1% Accepted
30.5% Freq
Solution
ArrayHash TableBinary Search+2 more
Hard
52.2% Accepted
30.5% Freq
Solution
ArrayBinary SearchStack+4 more
Medium
20.9% Accepted
29.3% Freq
ArrayStringBinary Search+6 more
Medium
34.1% Accepted
29.1% Freq
ArrayTwo PointersBinary Search+2 more
Medium
37.4% Accepted
28.8% Freq
ArrayBinary SearchSorting+1 more
Hard
27.2% Accepted
26.2% Freq
Two PointersStringBinary Search+3 more
259. 3Sum Smaller
💰 Premium
Medium
51.1% Accepted
25.8% Freq
Solution
ArrayTwo PointersBinary Search+1 more
Medium
43.5% Accepted
23.2% Freq
ArrayBinary SearchTree+3 more
Medium
52.4% Accepted
22.7% Freq
Solution
ArrayHash TableBinary Search+1 more
Hard
59.7% Accepted
19.4% Freq
Solution
Hash TableBinary SearchUnion Find+3 more
Hard
25.8% Accepted
13.8% Freq
ArrayBinary SearchDynamic Programming+1 more
Medium
40.9% Accepted
2.2% Freq
ArrayBinary Search
644. Maximum Average Subarray II
💰 Premium
Hard
37.6% Accepted
Solution
ArrayBinary SearchPrefix Sum
Hard
46.2% Accepted
Solution
MathBinary Search
Hard
39.7% Accepted
ArrayBinary SearchDesign+2 more
Medium
63.0% Accepted
ArrayHash TableString+2 more
1182. Shortest Distance to Target Color
💰 Premium
Medium
56.4% Accepted
Solution
ArrayBinary SearchDynamic Programming
Medium
76.8% Accepted
Solution
ArrayHash TableBinary Search+2 more
Medium
69.7% Accepted
MathTwo PointersBinary Search+1 more
Hard
62.2% Accepted
ArrayBinary SearchHeap (Priority Queue)+1 more
Medium
36.6% Accepted
ArrayHash TableBinary Search+2 more
Hard
46.5% Accepted
ArrayBinary SearchBit Manipulation+1 more
Medium
56.7% Accepted
Solution
ArrayBinary SearchInteractive
Medium
43.4% Accepted
ArrayHash TableBinary Search+1 more
Medium
61.6% Accepted
ArrayStringBinary Search+1 more
Hard
49.2% Accepted
ArrayHash TableBinary Search+1 more
Hard
41.7% Accepted
ArrayHash TableTwo Pointers+4 more
Medium
54.1% Accepted
Solution
ArrayTwo PointersBinary Search
Medium
53.2% Accepted
Solution
ArrayBinary SearchSimulation+1 more
Hard
28.9% Accepted
ArrayBinary SearchRolling Hash+2 more
Medium
55.1% Accepted
MathBinary Search
Hard
50.1% Accepted
ArrayMathBinary Search+2 more
Hard
62.6% Accepted
Solution
ArrayBinary SearchBinary Indexed Tree
Medium
62.5% Accepted
ArrayBinary Search
Medium
49.2% Accepted
ArrayBinary SearchDivide and Conquer+4 more
Medium
40.7% Accepted
ArrayHash TableBinary Search+2 more
Medium
67.4% Accepted
ArrayBinary Search
Hard
43.3% Accepted
StringBinary SearchRolling Hash+3 more
Hard
30.0% Accepted
ArrayTwo PointersBinary Search+4 more
Medium
35.3% Accepted
ArrayBinary SearchGreedy+3 more
Hard
18.0% Accepted
Binary SearchDesignBinary Indexed Tree+1 more
Medium
26.2% Accepted
ArrayBinary SearchGreedy+2 more
Medium
68.4% Accepted
ArrayMathBinary Search+1 more
Hard
37.5% Accepted
ArrayBinary SearchQueue+4 more
Medium
54.3% Accepted
Hash TableBinary SearchUnion Find+5 more
Medium
31.7% Accepted
MathBinary SearchNumber Theory
2519. Count the Number of K-Big Indices
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Hard
53.4% Accepted
ArrayBinary SearchDivide and Conquer+4 more
Hard
34.0% Accepted
ArrayBinary SearchGreedy+3 more
Medium
68.0% Accepted
Solution
ArrayHash TableBinary Search+2 more
Medium
36.4% Accepted
ArrayBinary SearchSliding Window
Medium
35.1% Accepted
ArrayBinary SearchGreedy+1 more
Hard
32.8% Accepted
Two PointersStringBinary Search
Medium
40.7% Accepted
ArrayTwo PointersBinary Search+2 more
Hard
38.8% Accepted
ArrayBinary SearchStack+2 more
Medium
55.6% Accepted
Solution
ArrayMathBinary Search+2 more
2604. Minimum Time to Eat All Grains
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Hard
40.0% Accepted
ArrayTwo PointersBinary Search+1 more
Hard
43.1% Accepted
ArrayBinary Search
Hard
31.1% Accepted
ArrayHash TableBinary Search+5 more
Hard
22.6% Accepted
ArrayMathBinary Search+2 more
Hard
45.2% Accepted
ArrayBinary SearchSorting+1 more
Medium
42.5% Accepted
ArrayBinary SearchDynamic Programming
2838. Maximum Coins Heroes Can Collect
💰 Premium
Medium
68.6% Accepted
Solution
ArrayTwo PointersBinary Search+2 more
Medium
26.2% Accepted
ArrayHash TableTwo Pointers+3 more
Hard
25.3% Accepted
ArrayBinary SearchDynamic Programming+2 more
Medium
22.8% Accepted
ArrayMathBinary Search+2 more
Hard
39.6% Accepted
ArrayTwo PointersBinary Search
Medium
61.9% Accepted
Solution
Hash TableStringBinary Search+2 more
Medium
38.8% Accepted
Solution
Hash TableStringBinary Search+2 more
Medium
37.9% Accepted
MathBinary SearchDynamic Programming+1 more
Hard
20.5% Accepted
ArrayBinary SearchGreedy+1 more
Hard
58.6% Accepted
Hash TableStringBinary Search+1 more
3109. Find the Index of Permutation
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Medium
35.1% Accepted
ArrayBinary SearchDivide and Conquer+4 more
Hard
19.1% Accepted
ArrayMathBinary Search+3 more
Hard
27.4% Accepted
ArrayBinary SearchDynamic Programming+3 more
Medium
55.6% Accepted
StringBinary SearchDynamic Programming+2 more
Medium
38.7% Accepted
ArrayHash TableString+2 more
Hard
22.9% Accepted
ArrayBinary SearchBit Manipulation
Medium
45.7% Accepted
Solution
ArrayBinary SearchPrefix Sum
Medium
42.2% Accepted
ArrayMathBinary Search
Hard
30.4% Accepted
ArrayBinary SearchBit Manipulation+1 more
Hard
34.5% Accepted
ArrayBinary SearchBit Manipulation+1 more
Hard
45.5% Accepted
ArrayBinary Search
Hard
22.4% Accepted
ArrayStringBinary Search+2 more
Hard
17.6% Accepted
ArrayBinary SearchSorting
Hard
18.8% Accepted
ArrayStringBinary Search+5 more
Medium
36.5% Accepted
ArrayMathBinary Search+2 more
Medium
50.3% Accepted
ArrayBinary SearchSliding Window+1 more
3369. Design an Array Statistics Tracker
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Hard
34.7% Accepted
Hash TableBinary SearchDesign+4 more
Hard
19.7% Accepted
ArrayBinary SearchEnumeration
Hard
39.6% Accepted
StringBinary Search
Hard
30.5% Accepted
ArrayBinary SearchDynamic Programming+1 more
Hard
25.0% Accepted
ArrayBinary SearchGreedy
Hard
22.6% Accepted
Two PointersStringBinary Search+1 more
Hard
20.4% Accepted
ArrayBinary SearchGreedy
Medium
32.2% Accepted
ArrayHash TableBinary Search
Hard
17.0% Accepted
ArrayStringBinary Search+1 more
Medium
53.1% Accepted
ArrayBinary SearchBinary Indexed Tree+1 more
Hard
18.3% Accepted
ArrayMathBinary Search+3 more
3656. Determine if a Simple Graph Exists
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Medium
49.5% Accepted
ArrayBinary SearchGraph+2 more
Medium
42.8% Accepted
ArrayBinary SearchDesign+1 more
Hard
29.5% Accepted
ArrayBinary SearchDepth-First Search+3 more
Medium
54.7% Accepted
Two PointersBinary SearchEnumeration
Page 1 of 25
Breadth-First Search (230 questions)
Medium
63.2% Accepted
93.9% Freq
Solution
ArrayDepth-First SearchBreadth-First Search+2 more
339. Nested List Weight Sum
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Medium
85.8% Accepted
93.2% Freq
Solution
Depth-First SearchBreadth-First Search
Medium
57.6% Accepted
93.0% Freq
Solution
Hash TableTreeDepth-First Search+3 more
Hard
44.7% Accepted
89.8% Freq
Solution
ArrayBreadth-First SearchMatrix
Hard
55.8% Accepted
86.6% Freq
Solution
ArrayDepth-First SearchBreadth-First Search+2 more
Hard
47.0% Accepted
85.4% Freq
Solution
ArrayHash TableBreadth-First Search
Medium
57.6% Accepted
82.6% Freq
Solution
ArrayBreadth-First SearchMatrix
Hard
63.8% Accepted
81.8% Freq
Solution
ArrayBreadth-First SearchHeap (Priority Queue)+1 more
Medium
47.4% Accepted
81.3% Freq
Solution
ArrayDynamic ProgrammingBreadth-First Search
Medium
50.2% Accepted
79.0% Freq
Solution
Depth-First SearchBreadth-First SearchGraph+1 more
Medium
68.6% Accepted
78.7% Freq
Solution
TreeDepth-First SearchBreadth-First Search+1 more
Medium
50.7% Accepted
78.6% Freq
Solution
ArrayBreadth-First SearchMatrix
286. Walls and Gates
💰 Premium
Medium
63.4% Accepted
78.5% Freq
Solution
ArrayBreadth-First SearchMatrix
Hard
52.6% Accepted
77.4% Freq
Solution
Hash TableTreeDepth-First Search+3 more
269. Alien Dictionary
💰 Premium
Hard
36.9% Accepted
77.2% Freq
Solution
ArrayStringDepth-First Search+3 more
Medium
59.0% Accepted
77.1% Freq
Solution
ArrayDepth-First SearchBreadth-First Search+1 more
Hard
44.1% Accepted
77.0% Freq
Solution
Hash TableStringBreadth-First Search
Hard
59.8% Accepted
76.9% Freq
Solution
StringTreeDepth-First Search+3 more
Medium
44.6% Accepted
75.4% Freq
ArrayHash TableTree+3 more
Medium
60.4% Accepted
74.8% Freq
Solution
ArrayHash TableString+4 more
Medium
54.4% Accepted
74.7% Freq
Solution
Depth-First SearchBreadth-First SearchGraph+1 more
Medium
67.1% Accepted
73.7% Freq
Solution
Hash TableTreeDepth-First Search+2 more
Hard
73.1% Accepted
73.2% Freq
Solution
TreeDepth-First SearchBreadth-First Search
Medium
48.0% Accepted
71.4% Freq
Solution
ArrayBreadth-First SearchMatrix
Hard
55.9% Accepted
70.8% Freq
Solution
ArrayDynamic ProgrammingDepth-First Search+5 more
1740. Find Distance in a Binary Tree
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Medium
74.1% Accepted
70.1% Freq
Solution
Hash TableTreeDepth-First Search+2 more
Medium
60.1% Accepted
70.0% Freq
Solution
ArrayDepth-First SearchBreadth-First Search+1 more
Hard
56.0% Accepted
69.7% Freq
Dynamic ProgrammingDepth-First SearchBreadth-First Search+1 more
Medium
22.3% Accepted
68.9% Freq
ArrayHash TableBreadth-First Search+1 more
364. Nested List Weight Sum II
💰 Premium
Medium
66.1% Accepted
68.6% Freq
Solution
StackDepth-First SearchBreadth-First Search
Medium
56.0% Accepted
68.4% Freq
Solution
MathDynamic ProgrammingBreadth-First Search
Medium
73.5% Accepted
68.2% Freq
Solution
ArrayDepth-First SearchBreadth-First Search+2 more
Medium
63.6% Accepted
68.0% Freq
Solution
ArrayStringDepth-First Search+4 more
694. Number of Distinct Islands
💰 Premium
Medium
62.6% Accepted
68.0% Freq
Solution
Hash TableDepth-First SearchBreadth-First Search+2 more
Hard
49.5% Accepted
67.7% Freq
Solution
StringBacktrackingBreadth-First Search
Medium
60.9% Accepted
66.9% Freq
Solution
ArrayHash TableString+1 more
Medium
69.5% Accepted
66.7% Freq
Solution
TreeDepth-First SearchBreadth-First Search
Medium
62.6% Accepted
66.5% Freq
Solution
TreeBreadth-First SearchBinary Tree
Hard
67.3% Accepted
66.1% Freq
Solution
ArrayBinary SearchDepth-First Search+4 more
711. Number of Distinct Islands II
💰 Premium
Hard
55.1% Accepted
65.9% Freq
Solution
Hash TableDepth-First SearchBreadth-First Search+2 more
Medium
69.5% Accepted
65.9% Freq
Solution
Depth-First SearchBreadth-First SearchUnion Find+1 more
Medium
44.8% Accepted
65.8% Freq
Solution
TreeDepth-First SearchBreadth-First Search+1 more
Medium
68.4% Accepted
65.6% Freq
ArrayDepth-First SearchBreadth-First Search+1 more
Hard
45.9% Accepted
65.6% Freq
Solution
ArrayBreadth-First SearchMatrix
Hard
27.3% Accepted
65.5% Freq
Solution
Hash TableStringBacktracking+1 more
Medium
60.0% Accepted
65.4% Freq
Solution
ArrayHash TableString+4 more
Hard
42.7% Accepted
64.8% Freq
Solution
ArrayHash TableDepth-First Search+3 more
Medium
66.3% Accepted
64.5% Freq
Solution
Linked ListTreeDepth-First Search+2 more
Medium
41.0% Accepted
64.5% Freq
Solution
Dynamic ProgrammingDepth-First SearchBreadth-First Search+3 more
Medium
71.6% Accepted
64.2% Freq
Solution
TreeBreadth-First SearchBinary Tree
Hard
30.7% Accepted
64.1% Freq
StringDynamic ProgrammingStack+2 more
Medium
63.4% Accepted
63.9% Freq
Solution
Hash TableTreeDepth-First Search+1 more
Hard
65.6% Accepted
63.1% Freq
Solution
Dynamic ProgrammingBit ManipulationBreadth-First Search+2 more
1242. Web Crawler Multithreaded
💰 Premium
Medium
50.6% Accepted
62.9% Freq
Depth-First SearchBreadth-First SearchConcurrency
Hard
62.5% Accepted
62.8% Freq
Solution
ArrayBinary SearchDepth-First Search+3 more
Medium
63.8% Accepted
62.5% Freq
Solution
Hash TableDepth-First SearchBreadth-First Search+1 more
1778. Shortest Path in a Hidden Grid
💰 Premium
Medium
44.3% Accepted
62.4% Freq
ArrayDepth-First SearchBreadth-First Search+2 more
Medium
44.0% Accepted
62.2% Freq
Solution
ArrayDepth-First SearchBreadth-First Search+2 more
Medium
48.5% Accepted
61.8% Freq
Solution
ArrayBinary SearchBreadth-First Search+3 more
Medium
64.5% Accepted
61.3% Freq
Solution
Depth-First SearchBreadth-First SearchUnion Find+1 more
Hard
70.8% Accepted
61.1% Freq
Solution
ArrayBreadth-First SearchGraph+3 more
490. The Maze
💰 Premium
Medium
59.9% Accepted
61.1% Freq
Solution
ArrayDepth-First SearchBreadth-First Search+1 more
Medium
25.9% Accepted
60.8% Freq
ArrayHash TableBit Manipulation+2 more
Hard
53.5% Accepted
60.3% Freq
Solution
ArrayDepth-First SearchBreadth-First Search+2 more
Hard
54.2% Accepted
60.0% Freq
Solution
ArrayBit ManipulationBreadth-First Search+1 more
Hard
68.4% Accepted
59.8% Freq
Solution
StringTreeDepth-First Search+1 more
Medium
58.8% Accepted
59.6% Freq
Solution
TreeBreadth-First SearchBinary Tree
Medium
44.1% Accepted
59.2% Freq
MathDepth-First SearchBreadth-First Search
Medium
44.6% Accepted
59.1% Freq
ArrayHash TableDepth-First Search+5 more
Hard
65.6% Accepted
58.9% Freq
Solution
Depth-First SearchBreadth-First SearchGraph+1 more
Medium
58.5% Accepted
58.6% Freq
Solution
Depth-First SearchBreadth-First SearchUnion Find+1 more
Medium
56.0% Accepted
58.0% Freq
Solution
Hash TableStringBreadth-First Search
Hard
68.2% Accepted
57.1% Freq
Solution
ArrayBreadth-First SearchGraph
Medium
83.4% Accepted
56.5% Freq
Solution
BacktrackingDepth-First SearchBreadth-First Search+1 more
Medium
52.0% Accepted
56.4% Freq
Solution
Depth-First SearchBreadth-First SearchUnion Find+1 more
Medium
52.7% Accepted
56.4% Freq
Solution
ArrayDynamic ProgrammingBreadth-First Search+1 more
Medium
60.4% Accepted
56.3% Freq
Solution
TreeDepth-First SearchBreadth-First Search
Medium
58.9% Accepted
55.2% Freq
Solution
Depth-First SearchBreadth-First SearchGraph+2 more
Hard
46.2% Accepted
55.0% Freq
Solution
ArrayHash TableBreadth-First Search
Medium
52.0% Accepted
54.6% Freq
Solution
ArrayDynamic ProgrammingBreadth-First Search+1 more
Medium
49.6% Accepted
54.5% Freq
Solution
Depth-First SearchBreadth-First SearchUnion Find+1 more
Medium
64.7% Accepted
54.1% Freq
Solution
Hash TableTreeDepth-First Search+2 more
Hard
36.8% Accepted
53.9% Freq
ArrayBinary SearchBreadth-First Search+1 more
Hard
58.8% Accepted
53.5% Freq
Solution
GreedyDepth-First SearchBreadth-First Search+2 more
Medium
77.6% Accepted
53.3% Freq
Solution
ArrayHash TableDepth-First Search+3 more
Medium
56.5% Accepted
53.1% Freq
Solution
Linked ListTreeDepth-First Search+2 more
Medium
69.7% Accepted
53.0% Freq
Solution
Depth-First SearchBreadth-First SearchGraph+1 more
Medium
65.7% Accepted
52.9% Freq
Solution
Depth-First SearchBreadth-First SearchUnion Find+1 more
Medium
55.0% Accepted
52.5% Freq
Depth-First SearchBreadth-First SearchGraph
Hard
18.2% Accepted
52.3% Freq
MathStringBreadth-First Search+2 more
1257. Smallest Common Region
💰 Premium
Medium
68.2% Accepted
52.1% Freq
Solution
ArrayHash TableString+3 more
Medium
80.9% Accepted
51.6% Freq
Solution
Hash TableTreeDepth-First Search+2 more
Medium
66.9% Accepted
50.8% Freq
Solution
Depth-First SearchBreadth-First SearchUnion Find+1 more
Medium
62.3% Accepted
50.3% Freq
Solution
ArrayBinary SearchDepth-First Search+4 more
Medium
49.6% Accepted
49.5% Freq
Solution
ArrayMathDepth-First Search+3 more
Medium
79.0% Accepted
49.0% Freq
Solution
Hash TableTreeDepth-First Search+2 more
Hard
54.9% Accepted
48.6% Freq
Solution
ArrayTreeDepth-First Search+2 more
1236. Web Crawler
💰 Premium
Medium
68.7% Accepted
47.7% Freq
Solution
StringDepth-First SearchBreadth-First Search+1 more
Hard
67.2% Accepted
47.6% Freq
Solution
Depth-First SearchBreadth-First SearchUnion Find+1 more
1245. Tree Diameter
💰 Premium
Medium
61.2% Accepted
47.0% Freq
Solution
TreeDepth-First SearchBreadth-First Search+2 more
Medium
42.2% Accepted
46.6% Freq
Solution
Depth-First SearchBreadth-First SearchGraph+1 more
Medium
59.0% Accepted
46.4% Freq
Solution
StringTreeDepth-First Search+4 more
Hard
55.8% Accepted
45.9% Freq
Solution
ArrayHash TableString+3 more
1087. Brace Expansion
💰 Premium
Medium
66.8% Accepted
45.9% Freq
Solution
StringBacktrackingStack+2 more
Medium
73.5% Accepted
45.9% Freq
Solution
ArrayDepth-First SearchBreadth-First Search+3 more
Hard
49.2% Accepted
45.5% Freq
ArrayBreadth-First SearchHeap (Priority Queue)+1 more
Medium
75.2% Accepted
45.5% Freq
Solution
Depth-First SearchBreadth-First SearchGraph
1102. Path With Maximum Minimum Value
💰 Premium
Medium
54.3% Accepted
45.4% Freq
Solution
ArrayBinary SearchDepth-First Search+4 more
Hard
60.7% Accepted
45.0% Freq
Solution
ArrayBinary SearchDepth-First Search+2 more
Medium
48.0% Accepted
44.7% Freq
Solution
ArrayBreadth-First SearchMatrix
Hard
73.4% Accepted
44.4% Freq
Solution
ArrayDynamic ProgrammingBacktracking+3 more
Medium
66.9% Accepted
44.2% Freq
Solution
ArrayDepth-First SearchBreadth-First Search+2 more
Medium
60.4% Accepted
43.6% Freq
ArrayStringDepth-First Search+2 more
737. Sentence Similarity II
💰 Premium
Medium
50.9% Accepted
43.3% Freq
Solution
ArrayHash TableString+3 more
Medium
62.0% Accepted
43.1% Freq
Solution
Depth-First SearchBreadth-First SearchGraph+1 more
1730. Shortest Path to Get Food
💰 Premium
Medium
57.0% Accepted
43.1% Freq
Solution
ArrayBreadth-First SearchMatrix
Medium
85.8% Accepted
42.8% Freq
Solution
TreeDepth-First SearchBreadth-First Search+1 more
Medium
66.5% Accepted
42.6% Freq
Solution
ArrayDepth-First SearchBreadth-First Search
Medium
47.5% Accepted
42.5% Freq
Solution
Breadth-First SearchGraph
505. The Maze II
💰 Premium
Medium
54.5% Accepted
42.4% Freq
Solution
ArrayDepth-First SearchBreadth-First Search+4 more
Medium
79.4% Accepted
42.3% Freq
Solution
StringDepth-First SearchBreadth-First Search+1 more
Hard
36.7% Accepted
41.9% Freq
TreeDepth-First SearchBreadth-First Search+1 more
Medium
65.4% Accepted
41.8% Freq
Solution
Depth-First SearchBreadth-First SearchGraph
Medium
56.3% Accepted
41.7% Freq
ArrayDepth-First SearchBreadth-First Search+2 more
Medium
71.2% Accepted
41.6% Freq
Solution
ArrayDepth-First SearchBreadth-First Search+2 more
Hard
40.3% Accepted
41.5% Freq
Solution
Hash TableStringBreadth-First Search
Hard
46.3% Accepted
41.5% Freq
Depth-First SearchBreadth-First SearchGraph+2 more
431. Encode N-ary Tree to Binary Tree
💰 Premium
Hard
80.4% Accepted
41.3% Freq
Solution
TreeDepth-First SearchBreadth-First Search+2 more
499. The Maze III
💰 Premium
Hard
51.0% Accepted
41.3% Freq
Solution
ArrayStringDepth-First Search+5 more
Hard
33.2% Accepted
41.3% Freq
ArrayMathBit Manipulation+3 more
Hard
59.4% Accepted
41.1% Freq
Solution
ArrayTwo PointersBreadth-First Search+4 more
Hard
57.2% Accepted
41.1% Freq
Solution
TreeDepth-First SearchBreadth-First Search+1 more
261. Graph Valid Tree
💰 Premium
Medium
49.6% Accepted
40.3% Freq
Solution
Depth-First SearchBreadth-First SearchUnion Find+1 more
Medium
30.4% Accepted
40.2% Freq
ArrayDynamic ProgrammingBreadth-First Search
Medium
59.6% Accepted
40.1% Freq
Solution
Depth-First SearchBreadth-First SearchGraph+1 more
Medium
67.5% Accepted
39.9% Freq
Solution
TreeDepth-First SearchBreadth-First Search+1 more
Medium
44.8% Accepted
39.8% Freq
ArrayDynamic ProgrammingBreadth-First Search+1 more
Medium
48.1% Accepted
39.0% Freq
Dynamic ProgrammingBreadth-First SearchMemoization
Medium
59.9% Accepted
38.8% Freq
Solution
ArrayHash TableTree+4 more
Hard
50.2% Accepted
38.4% Freq
Solution
Depth-First SearchBreadth-First SearchGraph+1 more
Hard
56.5% Accepted
38.3% Freq
Solution
ArrayBreadth-First SearchGraph+3 more
Medium
67.4% Accepted
37.9% Freq
Solution
ArrayTreeDepth-First Search+2 more
Hard
70.3% Accepted
37.8% Freq
Solution
ArrayBreadth-First SearchGraph+3 more
Medium
43.3% Accepted
37.8% Freq
Binary SearchDepth-First SearchBreadth-First Search+2 more
Medium
58.9% Accepted
37.4% Freq
Solution
BacktrackingBreadth-First Search
Medium
58.2% Accepted
37.2% Freq
Solution
Depth-First SearchBreadth-First SearchUnion Find+1 more
Medium
51.6% Accepted
37.0% Freq
ArrayDepth-First SearchBreadth-First Search+2 more
Medium
66.0% Accepted
37.0% Freq
Solution
TreeDepth-First SearchBreadth-First Search+1 more
Medium
59.7% Accepted
36.9% Freq
ArrayDepth-First SearchBreadth-First Search+2 more
Medium
45.8% Accepted
36.4% Freq
ArrayBreadth-First SearchSorting+2 more
Medium
64.5% Accepted
36.4% Freq
Solution
TreeDepth-First SearchBreadth-First Search+1 more
Medium
72.8% Accepted
36.2% Freq
Solution
Hash TableTreeDepth-First Search+2 more
Medium
71.4% Accepted
36.1% Freq
Solution
TreeBreadth-First Search
Medium
68.9% Accepted
35.8% Freq
Solution
ArrayHash TableTree+2 more
Hard
36.6% Accepted
35.6% Freq
Binary SearchDynamic ProgrammingBit Manipulation+4 more
Medium
66.3% Accepted
35.0% Freq
Solution
TreeDepth-First SearchBreadth-First Search+1 more
Hard
36.0% Accepted
34.6% Freq
ArrayHash TableDepth-First Search+1 more
Hard
72.3% Accepted
34.6% Freq
Solution
ArrayHash TableBit Manipulation+2 more
Medium
73.6% Accepted
34.4% Freq
Solution
TreeDepth-First SearchBreadth-First Search+1 more
Medium
66.8% Accepted
34.0% Freq
Solution
TreeBreadth-First SearchBinary Tree
Medium
72.0% Accepted
33.7% Freq
Solution
TreeDepth-First SearchBreadth-First Search+1 more
Medium
67.0% Accepted
33.3% Freq
Solution
TreeBreadth-First SearchBinary Tree
Hard
35.6% Accepted
32.6% Freq
Solution
Depth-First SearchBreadth-First SearchUnion Find+1 more
Medium
44.0% Accepted
31.5% Freq
Solution
TreeDepth-First SearchBreadth-First Search+3 more
Hard
62.4% Accepted
30.9% Freq
Solution
Breadth-First SearchGraphShortest Path
Medium
75.5% Accepted
30.5% Freq
Solution
ArrayDepth-First SearchBreadth-First Search+1 more
Hard
38.6% Accepted
29.9% Freq
Breadth-First SearchGraph
Medium
54.7% Accepted
29.8% Freq
ArrayBreadth-First SearchGraph
Medium
59.1% Accepted
28.0% Freq
Solution
TreeBreadth-First SearchSorting+1 more
Hard
59.1% Accepted
27.3% Freq
Solution
StringDynamic ProgrammingDepth-First Search+1 more
Medium
61.9% Accepted
27.0% Freq
Solution
ArrayBreadth-First SearchGraph
Medium
74.3% Accepted
26.8% Freq
Solution
TreeBreadth-First SearchBinary Tree
Hard
57.5% Accepted
25.8% Freq
Solution
ArrayDynamic ProgrammingDepth-First Search+5 more
Medium
50.9% Accepted
24.6% Freq
ArrayHash TableBreadth-First Search+2 more
Medium
86.7% Accepted
24.6% Freq
Solution
TreeDepth-First SearchBreadth-First Search+1 more
Medium
47.8% Accepted
24.0% Freq
ArrayHash TableBreadth-First Search
Medium
75.6% Accepted
22.3% Freq
Solution
Hash TableTreeDepth-First Search+2 more
Medium
86.4% Accepted
21.3% Freq
Solution
TreeDepth-First SearchBreadth-First Search+1 more
Medium
72.9% Accepted
18.3% Freq
Solution
ArrayDepth-First SearchBreadth-First Search+2 more
Medium
77.7% Accepted
16.6% Freq
Solution
Depth-First SearchBreadth-First SearchUnion Find+1 more
Medium
24.3% Accepted
2.4% Freq
ArrayHash TableMath+2 more
Medium
64.1% Accepted
Solution
TreeDepth-First SearchBreadth-First Search+1 more
Medium
49.8% Accepted
Solution
MathBit ManipulationDepth-First Search+1 more
Hard
35.8% Accepted
ArrayBreadth-First SearchHeap (Priority Queue)+1 more
742. Closest Leaf in a Binary Tree
💰 Premium
Medium
47.3% Accepted
Solution
TreeDepth-First SearchBreadth-First Search+1 more
Medium
64.8% Accepted
Solution
TreeBreadth-First SearchDesign+1 more
Hard
45.2% Accepted
Solution
ArrayHash TableDepth-First Search+3 more
Medium
50.5% Accepted
ArrayDepth-First SearchBreadth-First Search+1 more
Medium
53.0% Accepted
Depth-First SearchBreadth-First SearchGraph
Hard
51.4% Accepted
ArrayBreadth-First SearchMatrix
Medium
84.1% Accepted
Solution
Hash TableTreeDepth-First Search+3 more
Medium
49.5% Accepted
ArrayDepth-First SearchBreadth-First Search+2 more
Medium
47.4% Accepted
TreeDepth-First SearchBreadth-First Search+1 more
Medium
68.3% Accepted
Solution
Bit ManipulationTreeDepth-First Search+2 more
1490. Clone N-ary Tree
💰 Premium
Medium
83.2% Accepted
Solution
Hash TableTreeDepth-First Search+1 more
Medium
55.2% Accepted
Solution
Hash TableTreeDepth-First Search+2 more
Hard
58.9% Accepted
Solution
ArrayDepth-First SearchBreadth-First Search+2 more
Medium
75.0% Accepted
Solution
TreeBreadth-First SearchBinary Tree
1660. Correct a Binary Tree
💰 Premium
Medium
74.2% Accepted
Solution
Hash TableTreeDepth-First Search+2 more
Medium
75.4% Accepted
Solution
ArrayBreadth-First SearchMatrix
1810. Minimum Path Cost in a Hidden Grid
💰 Premium
Medium
58.4% Accepted
ArrayDepth-First SearchBreadth-First Search+5 more
Medium
51.2% Accepted
ArrayBreadth-First Search
Hard
45.3% Accepted
Solution
Depth-First SearchBreadth-First SearchUnion Find+2 more
Medium
67.1% Accepted
ArrayBit ManipulationBreadth-First Search+1 more
Hard
73.2% Accepted
Solution
Depth-First SearchBreadth-First SearchUnion Find+1 more
2445. Number of Nodes With Value One
💰 Premium
Medium
65.7% Accepted
ArrayTreeDepth-First Search+2 more
Medium
27.6% Accepted
ArrayDynamic ProgrammingDepth-First Search+2 more
Hard
15.7% Accepted
ArrayHash TableBreadth-First Search+2 more
Hard
23.2% Accepted
ArrayDynamic ProgrammingStack+5 more
Medium
70.4% Accepted
Solution
ArrayDepth-First SearchBreadth-First Search+2 more
2773. Height of Special Binary Tree
💰 Premium
Medium
74.2% Accepted
TreeDepth-First SearchBreadth-First Search+1 more
Hard
53.7% Accepted
ArrayBreadth-First SearchMatrix
2852. Sum of Remoteness of All Cells
💰 Premium
Medium
70.9% Accepted
Solution
ArrayHash TableDepth-First Search+3 more
Medium
56.4% Accepted
Breadth-First SearchGraphPrefix Sum
3141. Maximum Hamming Distances
💰 Premium
Hard
48.0% Accepted
ArrayBit ManipulationBreadth-First Search
Medium
69.0% Accepted
TreeDepth-First SearchBreadth-First Search+1 more
Hard
25.5% Accepted
ArrayMathDepth-First Search+3 more
Medium
31.8% Accepted
ArrayBreadth-First SearchGraph+3 more
Medium
50.0% Accepted
Depth-First SearchBreadth-First SearchGraph
3383. Minimum Runes to Add to Cast Spell
💰 Premium
Hard
42.7% Accepted
ArrayDepth-First SearchBreadth-First Search+3 more
Medium
47.8% Accepted
ArrayHash TableDepth-First Search+3 more
Hard
29.5% Accepted
ArrayBinary SearchDepth-First Search+3 more
Page 1 of 20
Matrix (227 questions)
Medium
63.2% Accepted
93.9% Freq
Solution
ArrayDepth-First SearchBreadth-First Search+2 more
Medium
66.7% Accepted
91.1% Freq
Solution
ArrayMatrixSimulation
Hard
44.7% Accepted
89.8% Freq
Solution
ArrayBreadth-First SearchMatrix
Hard
63.7% Accepted
89.3% Freq
Solution
ArrayMatrixEnumeration
Hard
55.8% Accepted
86.6% Freq
Solution
ArrayDepth-First SearchBreadth-First Search+2 more
Medium
55.3% Accepted
86.3% Freq
Solution
ArrayMatrixSimulation
348. Design Tic-Tac-Toe
💰 Premium
Medium
58.7% Accepted
82.6% Freq
Solution
ArrayHash TableDesign+2 more
Medium
57.6% Accepted
82.6% Freq
Solution
ArrayBreadth-First SearchMatrix
Hard
63.8% Accepted
81.8% Freq
Solution
ArrayBreadth-First SearchHeap (Priority Queue)+1 more
Medium
61.8% Accepted
80.3% Freq
Solution
ArrayHash TableMatrix
Medium
46.2% Accepted
80.1% Freq
Solution
ArrayStringBacktracking+2 more
Hard
65.3% Accepted
79.6% Freq
Solution
ArrayDynamic ProgrammingMatrix
Hard
65.3% Accepted
78.7% Freq
Solution
ArrayHash TableBacktracking+1 more
Medium
63.5% Accepted
78.7% Freq
ArrayHash TableMatrix+1 more
Hard
56.6% Accepted
78.7% Freq
Solution
ArrayDynamic ProgrammingMemoization+1 more
Medium
50.7% Accepted
78.6% Freq
Solution
ArrayBreadth-First SearchMatrix
286. Walls and Gates
💰 Premium
Medium
63.4% Accepted
78.5% Freq
Solution
ArrayBreadth-First SearchMatrix
Medium
59.0% Accepted
77.1% Freq
Solution
ArrayDepth-First SearchBreadth-First Search+1 more
Hard
55.2% Accepted
76.3% Freq
Solution
ArrayDynamic ProgrammingStack+2 more
Medium
80.6% Accepted
76.3% Freq
Solution
ArrayDynamic ProgrammingMatrix
Medium
71.0% Accepted
75.5% Freq
Solution
ArrayDynamic ProgrammingStack+2 more
311. Sparse Matrix Multiplication
💰 Premium
Medium
69.1% Accepted
74.7% Freq
Solution
ArrayHash TableMatrix
Medium
55.5% Accepted
74.7% Freq
Solution
ArrayGraphHeap (Priority Queue)+2 more
Medium
79.2% Accepted
73.8% Freq
Solution
ArrayTwo PointersMatrix
Medium
78.0% Accepted
73.2% Freq
Solution
ArrayMatrix
Medium
49.5% Accepted
72.2% Freq
Solution
ArrayDynamic ProgrammingMatrix
Medium
48.0% Accepted
71.4% Freq
Solution
ArrayBreadth-First SearchMatrix
Hard
37.8% Accepted
71.3% Freq
Solution
ArrayStringBacktracking+2 more
Medium
77.7% Accepted
71.1% Freq
Solution
ArrayDivide and ConquerTree+1 more
Medium
68.1% Accepted
71.0% Freq
Solution
ArrayGraphHeap (Priority Queue)+2 more
Hard
38.6% Accepted
70.9% Freq
Solution
ArrayDynamic ProgrammingMatrix
Hard
55.9% Accepted
70.8% Freq
Solution
ArrayDynamic ProgrammingDepth-First Search+5 more
Medium
67.3% Accepted
70.3% Freq
Solution
ArrayDynamic ProgrammingMatrix
Medium
60.1% Accepted
70.0% Freq
Solution
ArrayDepth-First SearchBreadth-First Search+1 more
Medium
56.2% Accepted
69.3% Freq
Solution
ArrayBinary SearchDivide and Conquer+1 more
Medium
53.0% Accepted
69.3% Freq
Solution
ArrayBinary SearchMatrix
Medium
22.3% Accepted
68.9% Freq
ArrayHash TableBreadth-First Search+1 more
Medium
74.7% Accepted
68.5% Freq
Solution
ArrayHash TableString+2 more
Medium
84.7% Accepted
68.4% Freq
Solution
ArraySortingMatrix
Medium
73.5% Accepted
68.2% Freq
Solution
ArrayDepth-First SearchBreadth-First Search+2 more
Medium
72.0% Accepted
67.1% Freq
Solution
ArrayMatrixSimulation
Hard
40.2% Accepted
67.1% Freq
Solution
ArrayDynamic ProgrammingMatrix
Hard
67.3% Accepted
66.1% Freq
Solution
ArrayBinary SearchDepth-First Search+4 more
Medium
68.4% Accepted
65.6% Freq
ArrayDepth-First SearchBreadth-First Search+1 more
Hard
45.9% Accepted
65.6% Freq
Solution
ArrayBreadth-First SearchMatrix
631. Design Excel Sum Formula
💰 Premium
Hard
40.5% Accepted
64.8% Freq
Solution
ArrayHash TableString+4 more
Hard
62.5% Accepted
62.8% Freq
Solution
ArrayBinary SearchDepth-First Search+3 more
1778. Shortest Path in a Hidden Grid
💰 Premium
Medium
44.3% Accepted
62.4% Freq
ArrayDepth-First SearchBreadth-First Search+2 more
Medium
44.0% Accepted
62.2% Freq
Solution
ArrayDepth-First SearchBreadth-First Search+2 more
Medium
48.5% Accepted
61.8% Freq
Solution
ArrayBinary SearchBreadth-First Search+3 more
Hard
70.8% Accepted
61.1% Freq
Solution
ArrayBreadth-First SearchGraph+3 more
Medium
64.0% Accepted
61.1% Freq
Solution
ArrayBinary SearchSorting+2 more
490. The Maze
💰 Premium
Medium
59.9% Accepted
61.1% Freq
Solution
ArrayDepth-First SearchBreadth-First Search+1 more
Medium
77.0% Accepted
61.0% Freq
ArrayDepth-First SearchMatrix
Medium
25.9% Accepted
60.8% Freq
ArrayHash TableBit Manipulation+2 more
Hard
82.6% Accepted
60.6% Freq
Solution
ArrayBacktrackingBit Manipulation+1 more
Hard
53.5% Accepted
60.3% Freq
Solution
ArrayDepth-First SearchBreadth-First Search+2 more
Hard
54.2% Accepted
60.0% Freq
Solution
ArrayBit ManipulationBreadth-First Search+1 more
Medium
84.5% Accepted
60.0% Freq
Solution
ArrayMatrixSimulation
Medium
55.0% Accepted
59.5% Freq
Solution
ArrayBinary SearchMatrix+1 more
Medium
60.9% Accepted
59.4% Freq
Solution
ArrayDynamic ProgrammingMatrix
Medium
74.2% Accepted
58.5% Freq
Solution
ArrayMatrixSimulation
Medium
53.9% Accepted
56.8% Freq
ArrayBinary SearchMatrix
Medium
52.7% Accepted
56.4% Freq
Solution
ArrayDynamic ProgrammingBreadth-First Search+1 more
Medium
57.2% Accepted
56.0% Freq
Solution
ArrayDesignMatrix+1 more
Medium
52.0% Accepted
54.6% Freq
Solution
ArrayDynamic ProgrammingBreadth-First Search+1 more
Hard
36.8% Accepted
53.9% Freq
ArrayBinary SearchBreadth-First Search+1 more
Medium
77.6% Accepted
53.3% Freq
Solution
ArrayHash TableDepth-First Search+3 more
Hard
60.3% Accepted
52.3% Freq
ArrayGraphTopological Sort+1 more
Medium
43.7% Accepted
51.1% Freq
Solution
ArrayDynamic ProgrammingMatrix
Medium
80.2% Accepted
50.9% Freq
Solution
ArrayGreedyBit Manipulation+1 more
Medium
25.1% Accepted
50.9% Freq
ArrayTwo PointersMatrix
Medium
70.4% Accepted
50.9% Freq
ArrayDivide and ConquerMatrix
Medium
62.3% Accepted
50.3% Freq
Solution
ArrayBinary SearchDepth-First Search+4 more
Hard
52.9% Accepted
50.3% Freq
ArrayDynamic ProgrammingBit Manipulation+2 more
Medium
51.5% Accepted
48.3% Freq
Solution
ArrayHash TableMath+1 more
Medium
36.3% Accepted
47.6% Freq
ArrayDynamic ProgrammingMatrix
Medium
68.2% Accepted
46.1% Freq
Solution
ArrayBacktrackingMatrix
Medium
73.5% Accepted
45.9% Freq
Solution
ArrayDepth-First SearchBreadth-First Search+3 more
Medium
34.7% Accepted
45.8% Freq
Solution
ArrayMatrix
Hard
49.2% Accepted
45.5% Freq
ArrayBreadth-First SearchHeap (Priority Queue)+1 more
1102. Path With Maximum Minimum Value
💰 Premium
Medium
54.3% Accepted
45.4% Freq
Solution
ArrayBinary SearchDepth-First Search+4 more
Hard
60.7% Accepted
45.0% Freq
Solution
ArrayBinary SearchDepth-First Search+2 more
Medium
51.7% Accepted
45.0% Freq
ArrayDynamic ProgrammingMatrix
Medium
68.8% Accepted
45.0% Freq
ArraySortingMatrix
Medium
50.4% Accepted
44.9% Freq
ArrayMatrixEnumeration
Medium
48.0% Accepted
44.7% Freq
Solution
ArrayBreadth-First SearchMatrix
Medium
47.7% Accepted
44.7% Freq
ArrayDynamic ProgrammingMatrix
Hard
73.4% Accepted
44.4% Freq
Solution
ArrayDynamic ProgrammingBacktracking+3 more
Medium
66.9% Accepted
44.2% Freq
Solution
ArrayDepth-First SearchBreadth-First Search+2 more
Hard
50.9% Accepted
43.6% Freq
Solution
ArrayMathBit Manipulation+1 more
Medium
51.2% Accepted
43.6% Freq
ArrayMatrixPrefix Sum
Hard
72.2% Accepted
43.6% Freq
Solution
ArrayDynamic ProgrammingMatrix
308. Range Sum Query 2D - Mutable
💰 Premium
Medium
45.1% Accepted
43.4% Freq
Solution
ArrayDesignBinary Indexed Tree+2 more
1730. Shortest Path to Get Food
💰 Premium
Medium
57.0% Accepted
43.1% Freq
Solution
ArrayBreadth-First SearchMatrix
Medium
53.1% Accepted
42.5% Freq
ArrayMatrixPrefix Sum
Hard
18.4% Accepted
42.5% Freq
ArrayDynamic ProgrammingMatrix
505. The Maze II
💰 Premium
Medium
54.5% Accepted
42.4% Freq
Solution
ArrayDepth-First SearchBreadth-First Search+4 more
Hard
41.7% Accepted
42.0% Freq
Solution
ArrayUnion FindGraph+3 more
Medium
56.3% Accepted
41.7% Freq
ArrayDepth-First SearchBreadth-First Search+2 more
Medium
71.2% Accepted
41.6% Freq
Solution
ArrayDepth-First SearchBreadth-First Search+2 more
499. The Maze III
💰 Premium
Hard
51.0% Accepted
41.3% Freq
Solution
ArrayStringDepth-First Search+5 more
Medium
86.3% Accepted
41.3% Freq
Solution
ArrayGreedyMatrix
Hard
59.4% Accepted
41.1% Freq
Solution
ArrayTwo PointersBreadth-First Search+4 more
Hard
49.1% Accepted
40.3% Freq
ArrayDynamic ProgrammingBit Manipulation+2 more
Medium
75.2% Accepted
40.3% Freq
Solution
ArrayGreedySorting+1 more
Medium
41.2% Accepted
40.3% Freq
ArrayDynamic ProgrammingMatrix
Hard
14.8% Accepted
40.3% Freq
ArrayDynamic ProgrammingBit Manipulation+2 more
Hard
74.6% Accepted
40.1% Freq
Solution
ArrayHash TableMatrix+1 more
Medium
44.8% Accepted
39.8% Freq
ArrayDynamic ProgrammingBreadth-First Search+1 more
Hard
45.0% Accepted
39.4% Freq
Solution
ArrayBinary SearchMatrix+2 more
Medium
53.7% Accepted
38.3% Freq
ArrayBinary SearchMatrix+1 more
Hard
56.5% Accepted
38.3% Freq
Solution
ArrayBreadth-First SearchGraph+3 more
Hard
70.3% Accepted
37.8% Freq
Solution
ArrayBreadth-First SearchGraph+3 more
Medium
51.6% Accepted
37.0% Freq
ArrayDepth-First SearchBreadth-First Search+2 more
Medium
59.7% Accepted
36.9% Freq
ArrayDepth-First SearchBreadth-First Search+2 more
Hard
63.4% Accepted
36.7% Freq
Solution
ArrayDynamic ProgrammingMatrix
Medium
76.1% Accepted
36.7% Freq
ArrayMatrixPrefix Sum
Medium
45.8% Accepted
36.4% Freq
ArrayBreadth-First SearchSorting+2 more
Medium
48.4% Accepted
35.7% Freq
ArrayGreedyMatrix
Hard
61.5% Accepted
35.1% Freq
Solution
ArrayDynamic ProgrammingMemoization+2 more
Hard
72.3% Accepted
34.6% Freq
Solution
ArrayHash TableBit Manipulation+2 more
Medium
67.5% Accepted
34.0% Freq
Solution
ArrayMathSorting+1 more
Medium
83.1% Accepted
33.8% Freq
Solution
ArraySortingMatrix
Medium
72.4% Accepted
33.5% Freq
ArrayMatrixSimulation
Medium
31.6% Accepted
33.0% Freq
ArrayMatrixPrefix Sum
Medium
75.5% Accepted
30.5% Freq
Solution
ArrayDepth-First SearchBreadth-First Search+1 more
Medium
70.7% Accepted
30.1% Freq
Solution
ArrayHash TableMatrix+1 more
Medium
63.8% Accepted
28.5% Freq
ArrayDivide and ConquerBit Manipulation+5 more
Hard
44.7% Accepted
27.9% Freq
ArrayDynamic ProgrammingMatrix
Hard
57.5% Accepted
25.8% Freq
Solution
ArrayDynamic ProgrammingDepth-First Search+5 more
Hard
79.3% Accepted
24.2% Freq
Solution
ArrayGraphTopological Sort+1 more
Medium
85.9% Accepted
23.0% Freq
ArraySortingMatrix
Medium
87.0% Accepted
20.1% Freq
Solution
ArrayMathString+1 more
Medium
82.2% Accepted
19.5% Freq
Solution
ArrayLinked ListMatrix+1 more
Medium
72.9% Accepted
18.3% Freq
Solution
ArrayDepth-First SearchBreadth-First Search+2 more
Hard
47.0% Accepted
6.1% Freq
ArrayMathDynamic Programming+3 more
Medium
50.5% Accepted
Solution
ArrayDynamic ProgrammingMatrix
Hard
35.8% Accepted
ArrayBreadth-First SearchHeap (Priority Queue)+1 more
750. Number Of Corner Rectangles
💰 Premium
Medium
67.9% Accepted
Solution
ArrayMathDynamic Programming+1 more
Medium
50.5% Accepted
ArrayDepth-First SearchBreadth-First Search+1 more
Medium
78.6% Accepted
Solution
ArrayHash TableMatrix
Medium
76.8% Accepted
Solution
ArrayHash TableBinary Search+2 more
Hard
51.4% Accepted
ArrayBreadth-First SearchMatrix
Hard
41.6% Accepted
ArrayDynamic ProgrammingMatrix
Medium
49.5% Accepted
ArrayDepth-First SearchBreadth-First Search+2 more
Hard
62.2% Accepted
ArrayBinary SearchHeap (Priority Queue)+1 more
Medium
48.6% Accepted
ArrayGreedyMatrix
Hard
58.9% Accepted
Solution
ArrayDepth-First SearchBreadth-First Search+2 more
Medium
35.3% Accepted
ArrayDynamic ProgrammingMatrix
Medium
82.8% Accepted
Solution
ArrayGreedyMatrix
Medium
72.2% Accepted
Solution
ArrayMatrixSimulation
Medium
75.4% Accepted
Solution
ArrayBreadth-First SearchMatrix
1810. Minimum Path Cost in a Hidden Grid
💰 Premium
Medium
58.4% Accepted
ArrayDepth-First SearchBreadth-First Search+5 more
Medium
51.9% Accepted
ArrayDepth-First SearchGraph+1 more
Medium
49.7% Accepted
ArrayMathSorting+3 more
Medium
42.0% Accepted
Solution
ArrayDynamic ProgrammingMatrix
Medium
62.4% Accepted
Solution
ArrayMatrixSimulation
Hard
66.1% Accepted
ArrayDynamic ProgrammingMatrix
Hard
42.2% Accepted
ArrayGraphMatrix
Medium
76.2% Accepted
ArrayMathBit Manipulation+1 more
Medium
67.1% Accepted
ArrayBit ManipulationBreadth-First Search+1 more
Medium
37.1% Accepted
ArrayMatrixPrefix Sum
Medium
67.3% Accepted
Solution
ArrayMatrixSimulation
Hard
39.8% Accepted
ArrayDynamic ProgrammingMatrix
Medium
47.5% Accepted
ArrayStackMatrix+1 more
Medium
67.7% Accepted
ArrayDynamic ProgrammingMatrix
2371. Minimize Maximum Value in a Grid
💰 Premium
Hard
70.4% Accepted
Solution
ArrayUnion FindGraph+3 more
Medium
57.4% Accepted
ArrayBacktrackingBit Manipulation+2 more
Medium
84.4% Accepted
Solution
ArrayMatrixSimulation
Medium
51.5% Accepted
ArrayDynamic ProgrammingMatrix
Medium
27.6% Accepted
ArrayDynamic ProgrammingDepth-First Search+2 more
Hard
32.4% Accepted
ArrayStringDynamic Programming+3 more
Hard
23.2% Accepted
ArrayDynamic ProgrammingStack+5 more
Medium
70.4% Accepted
Solution
ArrayDepth-First SearchBreadth-First Search+2 more
Medium
63.9% Accepted
Solution
ArrayHash TableMatrix
Medium
59.9% Accepted
ArraySortingHeap (Priority Queue)+2 more
Medium
58.8% Accepted
Solution
ArrayDynamic ProgrammingMatrix
Medium
68.1% Accepted
ArrayHash TableMatrix
Hard
31.1% Accepted
ArrayHash TableBinary Search+5 more
Hard
46.5% Accepted
ArrayHash TableBit Manipulation+1 more
Hard
53.7% Accepted
ArrayBreadth-First SearchMatrix
2852. Sum of Remoteness of All Cells
💰 Premium
Medium
70.9% Accepted
Solution
ArrayHash TableDepth-First Search+3 more
Hard
60.8% Accepted
ArrayGreedySorting+2 more
Medium
57.9% Accepted
ArrayMatrixPrefix Sum
Medium
64.4% Accepted
ArrayHash TableString+1 more
Medium
47.3% Accepted
ArrayDynamic ProgrammingMatrix
Hard
25.8% Accepted
ArrayDynamic ProgrammingMatrix+1 more
Medium
74.6% Accepted
ArrayTwo PointersMatrix
Hard
15.6% Accepted
ArrayDynamic ProgrammingMatrix+1 more
Hard
26.6% Accepted
ArrayDynamic ProgrammingMatrix+1 more
Medium
31.8% Accepted
ArrayBreadth-First SearchGraph+3 more
Hard
28.8% Accepted
ArrayHash TableGraph+1 more
Medium
47.1% Accepted
ArrayDynamic ProgrammingMatrix
Hard
50.3% Accepted
ArrayStackMatrix+1 more
Medium
67.9% Accepted
ArrayHash TableDesign+3 more
Medium
40.2% Accepted
ArrayDynamic ProgrammingBit Manipulation+1 more
Medium
29.1% Accepted
ArrayDynamic ProgrammingMatrix
Medium
60.2% Accepted
ArrayGreedySorting+2 more
Medium
25.8% Accepted
ArrayStringRolling Hash+3 more
Medium
42.1% Accepted
ArrayMatrixEnumeration+1 more
Hard
21.2% Accepted
ArrayHash TableMatrix+2 more
Medium
44.2% Accepted
ArrayDynamic ProgrammingMatrix
Page 1 of 19
Tree (213 questions)
Hard
38.7% Accepted
95.5% Freq
ArrayTreeGraph+1 more
Medium
57.6% Accepted
93.0% Freq
Solution
Hash TableTreeDepth-First Search+3 more
Medium
82.8% Accepted
89.4% Freq
Hash TableTwo PointersTree+1 more
Medium
68.0% Accepted
84.8% Freq
Solution
TreeDepth-First SearchBinary Tree
Medium
68.6% Accepted
78.7% Freq
Solution
TreeDepth-First SearchBreadth-First Search+1 more
Hard
52.6% Accepted
77.4% Freq
Solution
Hash TableTreeDepth-First Search+3 more
Hard
59.8% Accepted
76.9% Freq
Solution
StringTreeDepth-First Search+3 more
Hard
47.5% Accepted
76.3% Freq
Solution
Dynamic ProgrammingTreeDepth-First Search+1 more
Medium
44.6% Accepted
75.4% Freq
ArrayHash TableTree+3 more
Hard
41.7% Accepted
75.2% Freq
Solution
Dynamic ProgrammingTreeDepth-First Search+1 more
Medium
69.2% Accepted
74.3% Freq
Solution
TreeDepth-First SearchBinary Tree
Medium
67.1% Accepted
73.7% Freq
Solution
Hash TableTreeDepth-First Search+2 more
Hard
73.1% Accepted
73.2% Freq
Solution
TreeDepth-First SearchBreadth-First Search
Hard
76.4% Accepted
71.7% Freq
Solution
ArrayBit ManipulationTree+1 more
Medium
77.7% Accepted
71.1% Freq
Solution
ArrayDivide and ConquerTree+1 more
1740. Find Distance in a Binary Tree
💰 Premium
Medium
74.1% Accepted
70.1% Freq
Solution
Hash TableTreeDepth-First Search+2 more
Medium
56.4% Accepted
69.2% Freq
Solution
StringTreeDepth-First Search+1 more
Medium
77.2% Accepted
67.9% Freq
Solution
TreeDepth-First SearchBinary Tree
536. Construct Binary Tree from String
💰 Premium
Medium
58.6% Accepted
67.8% Freq
Solution
StringStackTree+2 more
Medium
86.7% Accepted
67.4% Freq
Solution
TreeDepth-First SearchBinary Tree
Hard
69.6% Accepted
67.3% Freq
Solution
ArrayDynamic ProgrammingGreedy+3 more
Medium
69.5% Accepted
66.7% Freq
Solution
TreeDepth-First SearchBreadth-First Search
Medium
55.3% Accepted
66.7% Freq
Solution
Dynamic ProgrammingTreeDepth-First Search+1 more
Medium
62.6% Accepted
66.5% Freq
Solution
TreeBreadth-First SearchBinary Tree
Medium
44.8% Accepted
65.8% Freq
Solution
TreeDepth-First SearchBreadth-First Search+1 more
Medium
65.4% Accepted
64.6% Freq
Solution
StackTreeDepth-First Search+3 more
Medium
66.3% Accepted
64.5% Freq
Solution
Linked ListTreeDepth-First Search+2 more
Medium
71.6% Accepted
64.2% Freq
Solution
TreeBreadth-First SearchBinary Tree
545. Boundary of Binary Tree
💰 Premium
Medium
47.6% Accepted
64.0% Freq
Solution
TreeDepth-First SearchBinary Tree
Medium
63.4% Accepted
63.9% Freq
Solution
Hash TableTreeDepth-First Search+1 more
366. Find Leaves of Binary Tree
💰 Premium
Medium
81.2% Accepted
63.7% Freq
Solution
TreeDepth-First SearchBinary Tree
Medium
65.6% Accepted
63.5% Freq
Solution
Linked ListStackTree+4 more
Medium
62.9% Accepted
63.1% Freq
Solution
MathDynamic ProgrammingTree+2 more
Medium
75.7% Accepted
60.8% Freq
Solution
StackTreeDesign+3 more
Medium
66.4% Accepted
60.8% Freq
Hash TableTreeDepth-First Search+1 more
Medium
57.8% Accepted
60.6% Freq
Solution
TreeDepth-First SearchBinary Search Tree+1 more
156. Binary Tree Upside Down
💰 Premium
Medium
64.9% Accepted
60.6% Freq
TreeDepth-First SearchBinary Tree
Medium
76.1% Accepted
60.3% Freq
Solution
TreeDepth-First SearchBinary Search Tree+1 more
Medium
69.4% Accepted
60.2% Freq
Solution
TreeDepth-First SearchBinary Search Tree+1 more
Hard
68.4% Accepted
59.8% Freq
Solution
StringTreeDepth-First Search+1 more
Medium
58.8% Accepted
59.6% Freq
Solution
TreeBreadth-First SearchBinary Tree
Hard
29.5% Accepted
59.6% Freq
Dynamic ProgrammingTreeDepth-First Search
Hard
37.0% Accepted
59.4% Freq
Hash TableBinary SearchTree+2 more
Medium
67.8% Accepted
59.2% Freq
Solution
ArrayHash TableDivide and Conquer+2 more
Medium
60.4% Accepted
58.2% Freq
Solution
Hash TableTreeDepth-First Search+1 more
Hard
52.9% Accepted
57.8% Freq
ArrayMathTree+2 more
Medium
61.3% Accepted
57.7% Freq
Solution
Dynamic ProgrammingBacktrackingTree+2 more
Medium
34.9% Accepted
56.9% Freq
Solution
TreeDepth-First SearchBinary Search Tree+1 more
Hard
45.6% Accepted
56.5% Freq
Dynamic ProgrammingTreeDepth-First Search+2 more
Medium
60.4% Accepted
56.3% Freq
Solution
TreeDepth-First SearchBreadth-First Search
Medium
69.6% Accepted
55.3% Freq
Solution
Linked ListStackTree+2 more
1506. Find Root of N-Ary Tree
💰 Premium
Medium
78.5% Accepted
55.0% Freq
Solution
Hash TableBit ManipulationTree+1 more
Medium
79.3% Accepted
54.7% Freq
Hash TableTreeDepth-First Search+1 more
Medium
64.7% Accepted
54.1% Freq
Solution
Hash TableTreeDepth-First Search+2 more
272. Closest Binary Search Tree Value II
💰 Premium
Hard
60.8% Accepted
53.9% Freq
Solution
Two PointersStackTree+4 more
Hard
53.9% Accepted
53.7% Freq
Solution
ArrayStringTree+3 more
Hard
24.3% Accepted
53.5% Freq
ArrayBinary SearchDynamic Programming+2 more
Medium
56.5% Accepted
53.1% Freq
Solution
Linked ListTreeDepth-First Search+2 more
Medium
46.2% Accepted
52.7% Freq
Solution
TreeDepth-First SearchBinary Tree
Hard
65.4% Accepted
52.7% Freq
Solution
Dynamic ProgrammingTreeDepth-First Search+1 more
Medium
83.8% Accepted
52.5% Freq
Solution
ArrayStackTree+3 more
1257. Smallest Common Region
💰 Premium
Medium
68.2% Accepted
52.1% Freq
Solution
ArrayHash TableString+3 more
Hard
15.2% Accepted
52.1% Freq
ArrayHash TableTree+2 more
Medium
72.4% Accepted
51.6% Freq
Solution
ArrayHash TableTree+2 more
Medium
80.9% Accepted
51.6% Freq
Solution
Hash TableTreeDepth-First Search+2 more
Medium
69.2% Accepted
51.6% Freq
Solution
TreeDepth-First SearchBinary Tree
Hard
46.6% Accepted
50.3% Freq
Dynamic ProgrammingBit ManipulationTree+2 more
Medium
61.2% Accepted
50.0% Freq
Solution
BacktrackingTreeDepth-First Search+1 more
Hard
32.8% Accepted
49.7% Freq
ArrayDynamic ProgrammingTree+1 more
Medium
79.0% Accepted
49.0% Freq
Solution
Hash TableTreeDepth-First Search+2 more
Hard
54.9% Accepted
48.6% Freq
Solution
ArrayTreeDepth-First Search+2 more
Medium
82.7% Accepted
48.4% Freq
Solution
Dynamic ProgrammingTreeRecursion+2 more
Medium
53.7% Accepted
48.3% Freq
Solution
TreeBinary Search TreeBinary Tree
Medium
77.2% Accepted
48.3% Freq
Solution
TreeDepth-First SearchBinary Tree
333. Largest BST Subtree
💰 Premium
Medium
45.7% Accepted
48.1% Freq
Solution
Dynamic ProgrammingTreeDepth-First Search+2 more
Medium
66.5% Accepted
47.2% Freq
Solution
TreeDepth-First SearchBinary Search Tree+1 more
1245. Tree Diameter
💰 Premium
Medium
61.2% Accepted
47.0% Freq
Solution
TreeDepth-First SearchBreadth-First Search+2 more
Hard
44.6% Accepted
46.6% Freq
ArrayDynamic ProgrammingBit Manipulation+3 more
Medium
59.0% Accepted
46.4% Freq
Solution
StringTreeDepth-First Search+4 more
Hard
69.5% Accepted
46.2% Freq
Solution
TreeDepth-First Search
Medium
82.4% Accepted
45.0% Freq
ArrayMathStack+3 more
Medium
54.3% Accepted
44.9% Freq
Solution
TreeDepth-First SearchBinary Tree
1522. Diameter of N-Ary Tree
💰 Premium
Medium
75.4% Accepted
44.9% Freq
Solution
TreeDepth-First Search
Hard
83.3% Accepted
44.5% Freq
Solution
StringTreeDepth-First Search+1 more
Medium
72.4% Accepted
44.2% Freq
Solution
TreeDepth-First SearchBinary Tree
Medium
71.0% Accepted
44.1% Freq
Solution
TreeDepth-First SearchBinary Search Tree+1 more
Hard
35.5% Accepted
43.6% Freq
MathDynamic ProgrammingTree+2 more
Hard
48.8% Accepted
43.6% Freq
ArrayTreeDepth-First Search
Hard
21.0% Accepted
43.6% Freq
ArrayDynamic ProgrammingTree+1 more
Medium
65.4% Accepted
43.5% Freq
Solution
Linked ListDivide and ConquerTree+2 more
Medium
85.8% Accepted
42.8% Freq
Solution
TreeDepth-First SearchBreadth-First Search+1 more
Medium
43.1% Accepted
42.7% Freq
Solution
TreeDepth-First SearchBinary Tree
Medium
73.3% Accepted
42.7% Freq
Solution
TreeBinary Search TreeBinary Tree
Medium
51.5% Accepted
42.5% Freq
Solution
ArrayStackTree+4 more
Medium
40.7% Accepted
42.0% Freq
ArrayDynamic ProgrammingTree+1 more
Hard
36.7% Accepted
41.9% Freq
TreeDepth-First SearchBreadth-First Search+1 more
431. Encode N-ary Tree to Binary Tree
💰 Premium
Hard
80.4% Accepted
41.3% Freq
Solution
TreeDepth-First SearchBreadth-First Search+2 more
Hard
44.6% Accepted
41.3% Freq
ArrayTreeGraph+1 more
Hard
57.2% Accepted
41.1% Freq
Solution
TreeDepth-First SearchBreadth-First Search+1 more
Medium
67.3% Accepted
40.6% Freq
Solution
ArrayHash TableDivide and Conquer+2 more
Medium
68.5% Accepted
40.5% Freq
Solution
Hash TableTreeDepth-First Search+1 more
510. Inorder Successor in BST II
💰 Premium
Medium
61.1% Accepted
40.3% Freq
Solution
TreeBinary Search TreeBinary Tree
Medium
67.5% Accepted
39.9% Freq
Solution
TreeDepth-First SearchBreadth-First Search+1 more
Hard
40.8% Accepted
39.8% Freq
ArrayHash TableMath+4 more
Medium
49.6% Accepted
39.4% Freq
Solution
TreeDepth-First SearchBinary Tree
Hard
41.0% Accepted
39.4% Freq
ArrayTreeDepth-First Search+2 more
Medium
78.0% Accepted
39.0% Freq
Solution
ArrayHash TableDivide and Conquer+2 more
Medium
59.9% Accepted
38.8% Freq
Solution
ArrayHash TableTree+4 more
250. Count Univalue Subtrees
💰 Premium
Medium
57.3% Accepted
37.9% Freq
Solution
TreeDepth-First SearchBinary Tree
Medium
67.4% Accepted
37.9% Freq
Solution
ArrayTreeDepth-First Search+2 more
Hard
47.2% Accepted
37.8% Freq
ArrayDynamic ProgrammingTree+2 more
Hard
18.6% Accepted
37.8% Freq
ArrayHash TableString+3 more
Medium
54.1% Accepted
37.0% Freq
ArrayHash TableString+2 more
Medium
66.0% Accepted
37.0% Freq
Solution
TreeDepth-First SearchBreadth-First Search+1 more
Medium
64.5% Accepted
36.4% Freq
Solution
TreeDepth-First SearchBreadth-First Search+1 more
Medium
72.8% Accepted
36.2% Freq
Solution
Hash TableTreeDepth-First Search+2 more
Medium
71.4% Accepted
36.1% Freq
Solution
TreeBreadth-First Search
Medium
68.9% Accepted
35.8% Freq
Solution
ArrayHash TableTree+2 more
Medium
57.7% Accepted
35.7% Freq
ArrayDynamic ProgrammingGreedy+2 more
Hard
36.6% Accepted
35.6% Freq
Binary SearchDynamic ProgrammingBit Manipulation+4 more
Medium
66.3% Accepted
35.0% Freq
Solution
TreeDepth-First SearchBreadth-First Search+1 more
Medium
73.6% Accepted
34.4% Freq
Solution
TreeDepth-First SearchBreadth-First Search+1 more
Medium
66.8% Accepted
34.0% Freq
Solution
TreeBreadth-First SearchBinary Tree
Medium
48.1% Accepted
33.8% Freq
Solution
TreeDepth-First SearchBinary Tree
Medium
72.0% Accepted
33.7% Freq
Solution
TreeDepth-First SearchBreadth-First Search+1 more
Medium
52.0% Accepted
33.6% Freq
ArrayTreeDepth-First Search+1 more
Medium
67.0% Accepted
33.3% Freq
Solution
TreeBreadth-First SearchBinary Tree
Hard
36.0% Accepted
33.0% Freq
ArrayDynamic ProgrammingBit Manipulation+3 more
Medium
61.6% Accepted
32.1% Freq
TreeDepth-First SearchSorting+1 more
Medium
44.0% Accepted
31.5% Freq
Solution
TreeDepth-First SearchBreadth-First Search+3 more
Medium
84.7% Accepted
31.1% Freq
Solution
Divide and ConquerGreedyTree+3 more
Medium
88.3% Accepted
29.7% Freq
Solution
TreeDepth-First SearchBinary Search Tree+1 more
Medium
80.1% Accepted
28.8% Freq
Solution
TreeDepth-First SearchBinary Search Tree+2 more
Hard
56.2% Accepted
28.5% Freq
Solution
ArrayHash TableTree+3 more
Medium
59.1% Accepted
28.0% Freq
Solution
TreeBreadth-First SearchSorting+1 more
Medium
52.7% Accepted
27.0% Freq
TreeDepth-First SearchBinary Tree
Medium
74.3% Accepted
26.8% Freq
Solution
TreeBreadth-First SearchBinary Tree
Medium
86.7% Accepted
24.6% Freq
Solution
TreeDepth-First SearchBreadth-First Search+1 more
Medium
81.7% Accepted
24.4% Freq
Solution
ArrayHash TableTree+1 more
285. Inorder Successor in BST
💰 Premium
Medium
51.0% Accepted
23.6% Freq
Solution
TreeDepth-First SearchBinary Search Tree+1 more
Medium
43.5% Accepted
23.2% Freq
ArrayBinary SearchTree+3 more
Medium
75.6% Accepted
22.3% Freq
Solution
Hash TableTreeDepth-First Search+2 more
Medium
66.9% Accepted
22.2% Freq
Solution
Dynamic ProgrammingTreeDepth-First Search+1 more
Medium
70.4% Accepted
21.3% Freq
Solution
StringTreeDepth-First Search+1 more
Medium
86.4% Accepted
21.3% Freq
Solution
TreeDepth-First SearchBreadth-First Search+1 more
Medium
69.6% Accepted
21.0% Freq
Solution
TreeDepth-First SearchBinary Tree
Medium
78.1% Accepted
14.5% Freq
Solution
TreeDepth-First SearchBinary Tree
Hard
20.5% Accepted
14.2% Freq
ArrayMathTree+1 more
Medium
86.2% Accepted
11.9% Freq
Solution
ArrayDivide and ConquerStack+3 more
Medium
46.6% Accepted
Solution
StringStackTree+1 more
Medium
51.6% Accepted
Divide and ConquerTree
Medium
64.1% Accepted
Solution
TreeDepth-First SearchBreadth-First Search+1 more
663. Equal Tree Partition
💰 Premium
Medium
42.3% Accepted
Solution
TreeDepth-First SearchBinary Tree
742. Closest Leaf in a Binary Tree
💰 Premium
Medium
47.3% Accepted
Solution
TreeDepth-First SearchBreadth-First Search+1 more
Medium
64.8% Accepted
Solution
TreeBreadth-First SearchDesign+1 more
Medium
51.4% Accepted
Solution
TreeDepth-First SearchBinary Tree
Medium
61.0% Accepted
Solution
StringBacktrackingTree+2 more
Medium
54.4% Accepted
TreeDepth-First SearchBinary Tree
Medium
75.7% Accepted
MathTreeBinary Tree
1120. Maximum Average Subtree
💰 Premium
Medium
66.9% Accepted
Solution
TreeDepth-First SearchBinary Tree
Medium
84.1% Accepted
Solution
Hash TableTreeDepth-First Search+3 more
Medium
51.9% Accepted
Solution
Linked ListTreeDepth-First Search+1 more
Medium
47.4% Accepted
TreeDepth-First SearchBreadth-First Search+1 more
Medium
68.3% Accepted
Solution
Bit ManipulationTreeDepth-First Search+2 more
1490. Clone N-ary Tree
💰 Premium
Medium
83.2% Accepted
Solution
Hash TableTreeDepth-First Search+1 more
Medium
55.2% Accepted
Solution
Hash TableTreeDepth-First Search+2 more
Medium
71.8% Accepted
Solution
TreeDepth-First SearchBinary Tree
Hard
53.8% Accepted
Solution
ArrayMathDivide and Conquer+7 more
1586. Binary Search Tree Iterator II
💰 Premium
Medium
63.3% Accepted
Solution
StackTreeDesign+3 more
Hard
62.6% Accepted
StringStackTree+1 more
Medium
75.0% Accepted
Solution
TreeBreadth-First SearchBinary Tree
Medium
71.4% Accepted
Hash TableTreeDepth-First Search+2 more
Hard
66.8% Accepted
Dynamic ProgrammingBit ManipulationTree+2 more
1660. Correct a Binary Tree
💰 Premium
Medium
74.2% Accepted
Solution
Hash TableTreeDepth-First Search+2 more
1666. Change the Root of a Binary Tree
💰 Premium
Medium
75.0% Accepted
TreeDepth-First SearchBinary Tree
1902. Depth of BST Given Insertion Order
💰 Premium
Medium
42.4% Accepted
ArrayTreeBinary Search Tree+2 more
Hard
49.5% Accepted
MathDynamic ProgrammingTree+3 more
Medium
77.2% Accepted
Solution
TreeDepth-First SearchBinary Tree
Hard
47.2% Accepted
Dynamic ProgrammingTreeDepth-First Search+1 more
Hard
57.4% Accepted
MathDynamic ProgrammingTree+2 more
Hard
56.6% Accepted
Dynamic ProgrammingTreeDepth-First Search+1 more
Medium
56.1% Accepted
Dynamic ProgrammingTreeDepth-First Search
2445. Number of Nodes With Value One
💰 Premium
Medium
65.7% Accepted
ArrayTreeDepth-First Search+2 more
Hard
50.8% Accepted
TreeDepth-First SearchGraph+1 more
Hard
47.5% Accepted
ArrayHash TableDynamic Programming+2 more
Medium
66.6% Accepted
StackTreeDepth-First Search+1 more
2773. Height of Special Binary Tree
💰 Premium
Medium
74.2% Accepted
TreeDepth-First SearchBreadth-First Search+1 more
2792. Count Nodes That Are Great Enough
💰 Premium
Hard
56.2% Accepted
Divide and ConquerTreeDepth-First Search+1 more
Medium
46.9% Accepted
Dynamic ProgrammingTreeDepth-First Search
Hard
36.9% Accepted
Dynamic ProgrammingTreeDepth-First Search+2 more
3004. Maximum Subtree of the Same Color
💰 Premium
Medium
57.6% Accepted
ArrayDynamic ProgrammingTree+1 more
Medium
55.0% Accepted
ArrayTreeDepth-First Search
Medium
69.0% Accepted
TreeDepth-First SearchBreadth-First Search+1 more
Hard
26.5% Accepted
Dynamic ProgrammingTreeDepth-First Search+1 more
Medium
55.0% Accepted
TreeDepth-First Search
Hard
62.3% Accepted
ArrayTreeBinary Tree
Hard
44.0% Accepted
ArrayDynamic ProgrammingTree+1 more
Medium
53.3% Accepted
MathTreeDepth-First Search
Hard
59.8% Accepted
ArrayMathDynamic Programming+3 more
Hard
27.6% Accepted
ArrayTreeDepth-First Search+1 more
Page 1 of 18
Bit Manipulation (211 questions)
Medium
58.2% Accepted
83.1% Freq
Solution
Bit ManipulationBrainteaserEnumeration
Medium
59.5% Accepted
82.4% Freq
Dynamic ProgrammingGreedyBit Manipulation
Medium
56.6% Accepted
82.0% Freq
Solution
ArrayDynamic ProgrammingBit Manipulation
Hard
45.1% Accepted
79.6% Freq
Solution
ArrayDynamic ProgrammingBit Manipulation+1 more
465. Optimal Account Balancing
💰 Premium
Hard
50.1% Accepted
78.8% Freq
Solution
ArrayDynamic ProgrammingBacktracking+2 more
Medium
61.4% Accepted
77.5% Freq
Solution
ArrayBit ManipulationPrefix Sum
Medium
62.1% Accepted
77.2% Freq
Solution
ArrayBinary SearchBit Manipulation+1 more
Medium
81.6% Accepted
76.6% Freq
Solution
ArrayBacktrackingBit Manipulation
Hard
48.6% Accepted
75.5% Freq
Solution
MathBit ManipulationRecursion
Medium
65.4% Accepted
75.4% Freq
Solution
ArrayBit ManipulationBrainteaser
Medium
89.6% Accepted
75.2% Freq
Solution
ArrayBacktrackingBit Manipulation+1 more
Medium
63.5% Accepted
71.7% Freq
Solution
ArrayTwo PointersBinary Search+1 more
Hard
76.4% Accepted
71.7% Freq
Solution
ArrayBit ManipulationTree+1 more
Medium
28.7% Accepted
70.2% Freq
MathGreedyBit Manipulation
Hard
22.5% Accepted
69.3% Freq
ArrayTwo PointersBinary Search+4 more
Hard
26.4% Accepted
68.0% Freq
Solution
ArrayMathDynamic Programming+2 more
Hard
36.5% Accepted
67.8% Freq
ArrayHash TableMath+5 more
Medium
66.1% Accepted
67.7% Freq
Solution
ArrayBit Manipulation
Medium
54.5% Accepted
67.7% Freq
Solution
MathBit Manipulation
Hard
69.6% Accepted
67.3% Freq
Solution
ArrayDynamic ProgrammingGreedy+3 more
Hard
60.4% Accepted
65.3% Freq
Solution
ArrayMathBit Manipulation
Medium
60.3% Accepted
65.3% Freq
Solution
ArrayBacktrackingBit Manipulation
Hard
44.6% Accepted
63.9% Freq
ArrayDynamic ProgrammingBacktracking+2 more
Medium
19.0% Accepted
63.6% Freq
Solution
MathBit Manipulation
Hard
65.6% Accepted
63.1% Freq
Solution
Dynamic ProgrammingBit ManipulationBreadth-First Search+2 more
Medium
52.2% Accepted
62.0% Freq
Solution
Hash TableStringBit Manipulation+3 more
Medium
38.3% Accepted
61.7% Freq
Solution
ArrayDynamic ProgrammingBacktracking+3 more
Medium
71.0% Accepted
61.3% Freq
Solution
Hash TableStringBit Manipulation+1 more
Medium
25.9% Accepted
60.8% Freq
ArrayHash TableBit Manipulation+2 more
Hard
82.6% Accepted
60.6% Freq
Solution
ArrayBacktrackingBit Manipulation+1 more
Medium
53.3% Accepted
60.3% Freq
Solution
ArrayHash TableBit Manipulation+1 more
Medium
43.2% Accepted
60.3% Freq
ArrayHash TableGreedy+1 more
Hard
54.2% Accepted
60.0% Freq
Solution
ArrayBit ManipulationBreadth-First Search+1 more
Medium
30.8% Accepted
58.7% Freq
MathDynamic ProgrammingBit Manipulation+3 more
Medium
39.0% Accepted
58.6% Freq
Solution
ArrayHash TableMath+1 more
Medium
47.8% Accepted
57.4% Freq
Solution
MathBit ManipulationRecursion
Hard
50.8% Accepted
56.1% Freq
Solution
ArrayHash TableMath+4 more
Hard
68.3% Accepted
56.1% Freq
Solution
ArrayBit ManipulationUnion Find+1 more
Hard
62.2% Accepted
55.3% Freq
Solution
ArrayBit ManipulationQueue+2 more
Medium
75.5% Accepted
55.1% Freq
Solution
StringBacktrackingBit Manipulation
1506. Find Root of N-Ary Tree
💰 Premium
Medium
78.5% Accepted
55.0% Freq
Solution
Hash TableBit ManipulationTree+1 more
Medium
25.8% Accepted
54.4% Freq
ArrayMathDynamic Programming+2 more
Hard
24.1% Accepted
54.4% Freq
ArrayTwo PointersBinary Search+5 more
Hard
50.7% Accepted
53.8% Freq
ArrayMathGreedy+1 more
Medium
64.7% Accepted
53.6% Freq
Solution
ArrayDynamic ProgrammingBacktracking+2 more
Medium
48.3% Accepted
53.3% Freq
Solution
Bit Manipulation
Hard
20.7% Accepted
53.2% Freq
StringDynamic ProgrammingBit Manipulation+2 more
Hard
44.8% Accepted
52.7% Freq
Solution
ArrayStringDynamic Programming+2 more
Medium
40.6% Accepted
52.2% Freq
ArrayDynamic ProgrammingBit Manipulation+1 more
Medium
41.3% Accepted
51.5% Freq
Solution
ArrayDynamic ProgrammingBacktracking+2 more
Medium
80.2% Accepted
50.9% Freq
Solution
ArrayGreedyBit Manipulation+1 more
Hard
40.1% Accepted
50.9% Freq
ArrayDynamic ProgrammingBacktracking+2 more
Hard
17.9% Accepted
50.9% Freq
ArrayStringBit Manipulation+3 more
Hard
52.9% Accepted
50.3% Freq
ArrayDynamic ProgrammingBit Manipulation+2 more
Hard
46.6% Accepted
50.3% Freq
Dynamic ProgrammingBit ManipulationTree+2 more
Medium
87.0% Accepted
50.2% Freq
Solution
ArrayHash TableBit Manipulation
Medium
64.8% Accepted
50.1% Freq
Solution
ArrayBit ManipulationSliding Window
Hard
48.6% Accepted
49.8% Freq
ArrayHash TableBinary Search+1 more
Medium
88.2% Accepted
49.1% Freq
Solution
ArrayBit Manipulation
Hard
37.0% Accepted
48.8% Freq
MathDynamic ProgrammingBit Manipulation+2 more
Medium
61.4% Accepted
47.9% Freq
Solution
StringBit ManipulationSimulation
Medium
35.0% Accepted
46.7% Freq
ArrayBit ManipulationRecursion+1 more
Hard
44.6% Accepted
46.6% Freq
ArrayDynamic ProgrammingBit Manipulation+3 more
Medium
42.0% Accepted
46.3% Freq
ArrayGreedyBit Manipulation+1 more
Medium
45.8% Accepted
45.2% Freq
Solution
ArrayBit Manipulation
Hard
50.9% Accepted
43.6% Freq
Solution
ArrayMathBit Manipulation+1 more
Hard
45.7% Accepted
43.6% Freq
ArrayHash TableBit Manipulation+2 more
Medium
62.0% Accepted
43.1% Freq
StringDynamic ProgrammingBacktracking+2 more
Medium
62.1% Accepted
42.9% Freq
Solution
ArrayHash TableBacktracking+1 more
Medium
40.9% Accepted
42.4% Freq
ArrayHash TableString+2 more
Medium
31.3% Accepted
42.4% Freq
ArrayDynamic ProgrammingBacktracking+3 more
Hard
51.7% Accepted
41.3% Freq
ArrayBacktrackingBit Manipulation+1 more
Hard
33.2% Accepted
41.3% Freq
ArrayMathBit Manipulation+3 more
Hard
27.0% Accepted
41.1% Freq
ArrayDynamic ProgrammingBit Manipulation+4 more
Medium
70.5% Accepted
40.9% Freq
Solution
ArrayBit Manipulation
Hard
50.4% Accepted
40.8% Freq
Solution
ArrayHash TableString+5 more
Medium
52.1% Accepted
40.6% Freq
Solution
ArrayDynamic ProgrammingBacktracking+3 more
Hard
49.1% Accepted
40.3% Freq
ArrayDynamic ProgrammingBit Manipulation+2 more
Hard
14.8% Accepted
40.3% Freq
ArrayDynamic ProgrammingBit Manipulation+2 more
Hard
59.7% Accepted
40.2% Freq
ArrayHash TableBit Manipulation
Medium
56.8% Accepted
39.4% Freq
Solution
Hash TableStringBit Manipulation+2 more
351. Android Unlock Patterns
💰 Premium
Medium
53.5% Accepted
39.0% Freq
Solution
Dynamic ProgrammingBacktrackingBit Manipulation+1 more
Medium
60.8% Accepted
39.0% Freq
Solution
ArrayStringBit Manipulation
Medium
31.7% Accepted
38.5% Freq
ArrayMathBit Manipulation+1 more
Hard
25.3% Accepted
38.5% Freq
BacktrackingBit Manipulation
Medium
63.0% Accepted
38.5% Freq
Solution
MathBacktrackingBit Manipulation
Hard
56.9% Accepted
38.3% Freq
ArrayBit ManipulationTrie
Medium
36.6% Accepted
38.3% Freq
ArrayBit Manipulation
Medium
34.2% Accepted
37.9% Freq
ArrayDynamic ProgrammingBacktracking+2 more
Medium
80.8% Accepted
37.9% Freq
Solution
ArrayHash TableBit Manipulation+1 more
Medium
78.2% Accepted
37.8% Freq
Solution
ArrayBit ManipulationPrefix Sum
Hard
24.4% Accepted
37.8% Freq
ArrayDynamic ProgrammingBit Manipulation+1 more
Medium
66.5% Accepted
37.3% Freq
Solution
ArrayBit ManipulationSorting
Hard
62.0% Accepted
37.0% Freq
Solution
ArrayMathDynamic Programming+3 more
Hard
29.9% Accepted
36.4% Freq
Dynamic ProgrammingBit ManipulationGraph+1 more
Hard
36.6% Accepted
35.6% Freq
Binary SearchDynamic ProgrammingBit Manipulation+4 more
Hard
42.5% Accepted
35.5% Freq
ArrayTwo PointersDynamic Programming+3 more
Hard
81.6% Accepted
35.4% Freq
Solution
ArrayHash TableString+5 more
Medium
25.1% Accepted
35.0% Freq
ArrayDynamic ProgrammingBacktracking+4 more
Hard
72.3% Accepted
34.6% Freq
Solution
ArrayHash TableBit Manipulation+2 more
Medium
54.2% Accepted
34.4% Freq
Solution
ArrayMathBit Manipulation
Medium
33.8% Accepted
34.2% Freq
ArrayBit Manipulation
Hard
36.0% Accepted
33.0% Freq
ArrayDynamic ProgrammingBit Manipulation+3 more
Medium
36.9% Accepted
31.6% Freq
Dynamic ProgrammingGreedyBit Manipulation+1 more
Hard
54.0% Accepted
31.4% Freq
Solution
StringDynamic ProgrammingBit Manipulation+1 more
Medium
69.7% Accepted
31.2% Freq
Solution
ArrayDynamic ProgrammingBacktracking+2 more
Hard
64.5% Accepted
30.5% Freq
Solution
ArrayBacktrackingBit Manipulation+1 more
Medium
54.4% Accepted
30.0% Freq
Solution
ArrayStringBacktracking+1 more
Medium
58.2% Accepted
29.4% Freq
Hash TableStringBit Manipulation+1 more
Hard
64.4% Accepted
29.1% Freq
Solution
ArrayMathBit Manipulation+2 more
Medium
63.8% Accepted
28.5% Freq
ArrayDivide and ConquerBit Manipulation+5 more
Hard
55.3% Accepted
27.0% Freq
Solution
ArrayDynamic ProgrammingBit Manipulation+1 more
Medium
87.8% Accepted
23.6% Freq
StringBacktrackingBit Manipulation
Medium
71.8% Accepted
22.8% Freq
Solution
Bit Manipulation
Medium
80.5% Accepted
22.7% Freq
Solution
ArrayBit ManipulationQueue+2 more
Hard
22.7% Accepted
19.6% Freq
MathBit Manipulation
Medium
68.4% Accepted
17.2% Freq
Hash TableStringDynamic Programming+1 more
Hard
12.4% Accepted
6.1% Freq
ArrayMathGreedy+2 more
320. Generalized Abbreviation
💰 Premium
Medium
60.2% Accepted
Solution
StringBacktrackingBit Manipulation
Medium
49.8% Accepted
Solution
MathBit ManipulationDepth-First Search+1 more
Medium
53.2% Accepted
Solution
Hash TableStringBacktracking+1 more
1066. Campus Bikes II
💰 Premium
Medium
55.8% Accepted
Solution
ArrayDynamic ProgrammingBacktracking+2 more
Hard
47.5% Accepted
Solution
ArrayHash TableString+2 more
Medium
72.3% Accepted
MathBacktrackingBit Manipulation
Medium
75.7% Accepted
Solution
Hash TableStringBit Manipulation+1 more
Medium
84.9% Accepted
Solution
ArrayHash TableMath+2 more
Medium
68.3% Accepted
Solution
Bit ManipulationTreeDepth-First Search+2 more
Hard
46.5% Accepted
ArrayBinary SearchBit Manipulation+1 more
Hard
45.9% Accepted
Hash TableStringBit Manipulation
Medium
62.8% Accepted
ArrayGreedyBit Manipulation
Hard
73.2% Accepted
Solution
Dynamic ProgrammingBit ManipulationMemoization
Hard
66.8% Accepted
Dynamic ProgrammingBit ManipulationTree+2 more
Hard
40.4% Accepted
Dynamic ProgrammingBit ManipulationMemoization+1 more
Medium
56.8% Accepted
Solution
MathBit ManipulationSimulation
Hard
40.6% Accepted
ArrayDynamic ProgrammingBit Manipulation+1 more
Hard
40.4% Accepted
ArrayDynamic ProgrammingBit Manipulation
Hard
57.9% Accepted
Solution
ArrayMathDynamic Programming+4 more
Hard
46.0% Accepted
ArrayBit ManipulationTrie
Hard
41.0% Accepted
ArrayDynamic ProgrammingBit Manipulation+2 more
Medium
84.8% Accepted
Solution
ArrayBit ManipulationPrefix Sum
Hard
62.1% Accepted
ArrayMathBit Manipulation
Hard
49.9% Accepted
ArrayDynamic ProgrammingBit Manipulation+1 more
Medium
66.6% Accepted
Solution
Hash TableStringBit Manipulation+1 more
Medium
63.9% Accepted
ArrayDynamic ProgrammingBacktracking+2 more
Medium
76.2% Accepted
ArrayMathBit Manipulation+1 more
Medium
43.8% Accepted
ArrayHash TableString+2 more
Medium
43.2% Accepted
ArrayHash TableMath+5 more
Hard
50.3% Accepted
ArrayDynamic ProgrammingBit Manipulation+1 more
Medium
67.1% Accepted
ArrayBit ManipulationBreadth-First Search+1 more
Medium
49.5% Accepted
ArrayDynamic ProgrammingBit Manipulation+1 more
Medium
51.0% Accepted
ArrayBacktrackingBit Manipulation+1 more
Hard
50.9% Accepted
Dynamic ProgrammingBit ManipulationGraph+1 more
Medium
79.6% Accepted
ArrayMathBit Manipulation
Medium
57.4% Accepted
ArrayBacktrackingBit Manipulation+2 more
2403. Minimum Time to Kill All Monsters
💰 Premium
Hard
57.1% Accepted
ArrayDynamic ProgrammingBit Manipulation+1 more
Medium
66.9% Accepted
Solution
ArrayBit ManipulationBrainteaser
2505. Bitwise OR of All Subsequence Sums
💰 Premium
Medium
64.4% Accepted
ArrayMathBit Manipulation+2 more
Medium
42.1% Accepted
StringBit Manipulation
Medium
58.3% Accepted
ArrayBit ManipulationBrainteaser
Medium
52.8% Accepted
ArrayHash TableBit Manipulation+1 more
Medium
79.8% Accepted
Solution
ArrayBit Manipulation
Hard
46.5% Accepted
ArrayHash TableBit Manipulation+1 more
Medium
29.0% Accepted
ArrayDynamic ProgrammingBit Manipulation+1 more
2802. Find The K-th Lucky Number
💰 Premium
Medium
76.2% Accepted
Solution
MathStringBit Manipulation
Hard
32.1% Accepted
ArrayGreedyBit Manipulation
Hard
29.8% Accepted
ArrayDynamic ProgrammingBit Manipulation
Medium
32.5% Accepted
ArrayHash TableBit Manipulation
Medium
42.0% Accepted
ArrayGreedyBit Manipulation
Hard
43.8% Accepted
ArrayHash TableGreedy+1 more
Hard
31.6% Accepted
ArrayHash TableBit Manipulation+2 more
Hard
49.9% Accepted
Bit ManipulationGraphHeap (Priority Queue)+2 more
Medium
72.1% Accepted
ArrayMathDynamic Programming+4 more
Medium
85.4% Accepted
Solution
ArrayBit Manipulation
Medium
37.9% Accepted
MathBinary SearchDynamic Programming+1 more
Hard
29.0% Accepted
ArrayGreedyBit Manipulation
Medium
89.1% Accepted
Bit ManipulationInteractive
Medium
83.1% Accepted
Bit ManipulationInteractive
Medium
50.2% Accepted
Solution
ArrayBit ManipulationSliding Window
Hard
19.1% Accepted
ArrayMathBinary Search+3 more
Hard
27.4% Accepted
ArrayBinary SearchDynamic Programming+3 more
3141. Maximum Hamming Distances
💰 Premium
Hard
48.0% Accepted
ArrayBit ManipulationBreadth-First Search
Hard
22.9% Accepted
ArrayBinary SearchBit Manipulation
Hard
30.4% Accepted
ArrayBinary SearchBit Manipulation+1 more
Hard
21.1% Accepted
ArrayDynamic ProgrammingBit Manipulation
Hard
34.5% Accepted
ArrayBinary SearchBit Manipulation+1 more
Medium
60.4% Accepted
ArrayBit Manipulation
Hard
19.7% Accepted
ArrayDynamic ProgrammingBit Manipulation
Medium
65.2% Accepted
ArrayBit ManipulationEnumeration
Medium
35.4% Accepted
ArrayBit Manipulation
Medium
40.2% Accepted
ArrayDynamic ProgrammingBit Manipulation+1 more
Hard
26.2% Accepted
ArrayMathDynamic Programming+3 more
Medium
25.8% Accepted
ArrayMathBit Manipulation
Hard
29.1% Accepted
ArrayDynamic ProgrammingBit Manipulation+3 more
Hard
29.8% Accepted
ArrayDynamic ProgrammingBit Manipulation+1 more
Hard
59.8% Accepted
ArrayMathDynamic Programming+3 more
Hard
20.7% Accepted
MathDynamic ProgrammingBit Manipulation+1 more
Medium
12.6% Accepted
ArrayDynamic ProgrammingBit Manipulation
Page 1 of 18
Prefix Sum (204 questions)
Medium
46.2% Accepted
94.3% Freq
Solution
ArrayHash TablePrefix Sum
Medium
48.7% Accepted
92.5% Freq
Solution
ArrayMathBinary Search+2 more
253. Meeting Rooms II
💰 Premium
Medium
52.4% Accepted
90.1% Freq
Solution
ArrayTwo PointersGreedy+3 more
Hard
45.8% Accepted
87.6% Freq
Solution
StringDynamic ProgrammingPrefix Sum
Medium
44.4% Accepted
85.3% Freq
Solution
ArrayBinary SearchGreedy+3 more
Hard
64.8% Accepted
85.2% Freq
Solution
ArraySegment TreeEnumeration+1 more
Medium
54.3% Accepted
83.5% Freq
Solution
ArrayPrefix Sum
Medium
30.0% Accepted
82.9% Freq
ArrayHash TableDynamic Programming+3 more
Medium
66.8% Accepted
81.4% Freq
Solution
ArrayBinary SearchSliding Window+1 more
Medium
55.0% Accepted
80.2% Freq
Solution
ArrayGreedySorting+2 more
Hard
59.2% Accepted
78.3% Freq
Solution
ArrayBinary SearchDynamic Programming+2 more
Medium
61.4% Accepted
77.5% Freq
Solution
ArrayBit ManipulationPrefix Sum
Medium
68.2% Accepted
76.9% Freq
Solution
ArrayPrefix Sum
2021. Brightest Position on Street
💰 Premium
Medium
60.5% Accepted
75.8% Freq
ArraySortingPrefix Sum+1 more
Hard
48.8% Accepted
74.2% Freq
Solution
StringSliding WindowEnumeration+1 more
Hard
61.0% Accepted
72.9% Freq
Solution
ArrayBinary SearchSliding Window+1 more
Medium
50.1% Accepted
70.8% Freq
Solution
ArrayHash TablePrefix Sum
Hard
46.8% Accepted
68.3% Freq
ArrayHash TablePrefix Sum
Medium
56.1% Accepted
67.8% Freq
Solution
ArraySortingHeap (Priority Queue)+2 more
Medium
53.4% Accepted
67.3% Freq
Solution
ArrayBinary SearchSliding Window+1 more
Medium
55.8% Accepted
66.3% Freq
Solution
ArrayHash TablePrefix Sum
Medium
50.2% Accepted
63.3% Freq
Solution
ArrayBinary SearchSliding Window+1 more
Medium
67.4% Accepted
62.7% Freq
Solution
ArrayHash TableSliding Window+1 more
Medium
37.0% Accepted
61.7% Freq
ArrayDynamic ProgrammingQueue+3 more
Medium
71.0% Accepted
61.3% Freq
Solution
Hash TableStringBit Manipulation+1 more
Hard
59.6% Accepted
60.5% Freq
Solution
ArrayDynamic ProgrammingSliding Window+1 more
Hard
45.0% Accepted
60.3% Freq
ArrayDynamic ProgrammingPrefix Sum
Medium
56.7% Accepted
59.8% Freq
Solution
ArraySliding WindowPrefix Sum
Medium
60.9% Accepted
59.5% Freq
Solution
ArrayPrefix Sum
Medium
31.1% Accepted
59.1% Freq
Solution
ArrayHash TableMath+1 more
Medium
62.7% Accepted
58.4% Freq
Solution
ArraySimulationPrefix Sum
2950. Number of Divisible Substrings
💰 Premium
Medium
73.8% Accepted
58.2% Freq
Hash TableStringCounting+1 more
Medium
45.8% Accepted
57.4% Freq
Solution
ArrayStringPrefix Sum
Medium
56.0% Accepted
56.4% Freq
Solution
ArrayPrefix Sum
Medium
47.0% Accepted
56.2% Freq
ArrayStringBinary Search+1 more
Medium
39.9% Accepted
56.1% Freq
Solution
ArrayBinary SearchSliding Window+2 more
Medium
57.2% Accepted
56.0% Freq
Solution
ArrayDesignMatrix+1 more
Hard
62.2% Accepted
55.3% Freq
Solution
ArrayBit ManipulationQueue+2 more
Medium
74.3% Accepted
54.7% Freq
Solution
ArrayHash TableMath+2 more
Hard
33.0% Accepted
54.4% Freq
ArrayBinary SearchSorting+1 more
Hard
29.7% Accepted
53.9% Freq
ArrayDynamic ProgrammingPrefix Sum
Hard
32.4% Accepted
53.0% Freq
Solution
ArrayBinary SearchQueue+4 more
325. Maximum Size Subarray Sum Equals k
💰 Premium
Medium
50.7% Accepted
52.3% Freq
Solution
ArrayHash TablePrefix Sum
Medium
40.6% Accepted
52.2% Freq
ArrayDynamic ProgrammingBit Manipulation+1 more
Hard
15.2% Accepted
52.1% Freq
ArrayHash TableTree+2 more
Hard
57.5% Accepted
51.2% Freq
Solution
ArrayHash TableBinary Search+3 more
Medium
90.1% Accepted
51.1% Freq
Solution
ArrayStringPrefix Sum
Medium
40.3% Accepted
49.4% Freq
Solution
ArrayHash TableBinary Search+2 more
Hard
54.0% Accepted
49.1% Freq
Solution
ArrayBinary SearchSliding Window+2 more
Medium
38.8% Accepted
49.0% Freq
Solution
ArrayMathBinary Search+4 more
Hard
66.2% Accepted
48.8% Freq
Solution
Dynamic ProgrammingPrefix Sum
Hard
62.3% Accepted
48.6% Freq
Solution
ArrayBinary SearchSliding Window+1 more
Medium
67.8% Accepted
47.8% Freq
Solution
ArrayStringPrefix Sum
Medium
60.4% Accepted
47.6% Freq
Hash TableMathString+3 more
Medium
54.5% Accepted
47.0% Freq
Solution
ArrayDynamic ProgrammingPrefix Sum
Medium
69.3% Accepted
47.0% Freq
Solution
StringBinary SearchSliding Window+1 more
Medium
42.0% Accepted
46.3% Freq
ArrayGreedyBit Manipulation+1 more
Medium
46.4% Accepted
45.0% Freq
Solution
ArrayBinary SearchDynamic Programming+2 more
Medium
62.8% Accepted
44.9% Freq
Solution
ArrayMathDesign+2 more
Hard
46.6% Accepted
44.9% Freq
Solution
ArrayBinary SearchGreedy+2 more
Hard
71.0% Accepted
44.3% Freq
Solution
Binary SearchDesignSegment Tree+2 more
Medium
56.8% Accepted
44.2% Freq
Solution
ArrayPrefix Sum
Medium
43.6% Accepted
44.1% Freq
Solution
ArrayBinary SearchPrefix Sum
Hard
37.7% Accepted
43.6% Freq
ArrayBinary SearchSliding Window+2 more
Medium
51.2% Accepted
43.6% Freq
ArrayMatrixPrefix Sum
Medium
42.1% Accepted
43.3% Freq
ArrayGreedySorting+1 more
Medium
53.1% Accepted
42.5% Freq
ArrayMatrixPrefix Sum
Medium
40.9% Accepted
42.4% Freq
ArrayHash TableString+2 more
Medium
68.1% Accepted
42.4% Freq
Solution
ArrayMathPrefix Sum
Hard
34.4% Accepted
42.4% Freq
ArrayDynamic ProgrammingBinary Indexed Tree+2 more
Hard
27.2% Accepted
42.4% Freq
ArrayDynamic ProgrammingPrefix Sum
Hard
20.4% Accepted
42.4% Freq
ArrayHash TableBinary Search+3 more
Medium
55.9% Accepted
42.3% Freq
Solution
ArrayMathDynamic Programming+1 more
Medium
26.8% Accepted
42.0% Freq
StringDynamic ProgrammingGreedy+1 more
Medium
23.9% Accepted
41.3% Freq
ArrayBinary SearchGreedy+3 more
Medium
59.3% Accepted
40.9% Freq
Solution
StringBinary SearchSliding Window+1 more
Medium
63.6% Accepted
40.8% Freq
Solution
ArrayTwo PointersGreedy+3 more
Medium
67.8% Accepted
40.4% Freq
Solution
StringPrefix Sum
Hard
28.8% Accepted
40.3% Freq
Solution
ArrayStackMonotonic Stack+1 more
Hard
74.6% Accepted
40.1% Freq
Solution
ArrayHash TableMatrix+1 more
Medium
50.6% Accepted
39.6% Freq
StringDynamic ProgrammingPrefix Sum
Hard
45.0% Accepted
39.4% Freq
Solution
ArrayBinary SearchMatrix+2 more
Hard
47.2% Accepted
39.4% Freq
ArrayMathDynamic Programming+2 more
Medium
33.8% Accepted
39.0% Freq
ArrayTwo PointersBinary Search+1 more
Hard
42.2% Accepted
38.5% Freq
ArrayGreedySliding Window+1 more
Hard
30.3% Accepted
38.5% Freq
ArrayMathBinary Search+1 more
Medium
53.7% Accepted
38.3% Freq
ArrayBinary SearchMatrix+1 more
Medium
53.4% Accepted
37.8% Freq
Solution
ArrayStringPrefix Sum
Medium
78.2% Accepted
37.8% Freq
Solution
ArrayBit ManipulationPrefix Sum
Hard
38.1% Accepted
37.8% Freq
StringDynamic ProgrammingPrefix Sum
Medium
76.1% Accepted
36.7% Freq
ArrayMatrixPrefix Sum
Hard
61.5% Accepted
35.1% Freq
Solution
ArrayDynamic ProgrammingMemoization+2 more
Hard
49.1% Accepted
34.6% Freq
ArrayUnion FindPrefix Sum+1 more
Medium
63.1% Accepted
34.0% Freq
Solution
ArrayTwo PointersBinary Search+2 more
Medium
51.0% Accepted
33.8% Freq
ArrayDynamic ProgrammingPrefix Sum
Medium
72.9% Accepted
33.5% Freq
ArrayMathDynamic Programming+2 more
Medium
31.6% Accepted
33.0% Freq
ArrayMatrixPrefix Sum
Medium
62.5% Accepted
32.8% Freq
Solution
ArrayBinary SearchDesign+3 more
Medium
39.4% Accepted
32.7% Freq
Solution
ArrayHash TablePrefix Sum
Medium
36.5% Accepted
31.9% Freq
ArrayHash TableStack+2 more
Medium
20.8% Accepted
30.2% Freq
ArrayHash TablePrefix Sum
Medium
53.7% Accepted
30.1% Freq
ArrayMathSimulation+2 more
Medium
52.9% Accepted
29.4% Freq
Hash TableStringSliding Window+1 more
Medium
43.9% Accepted
29.1% Freq
ArraySliding WindowPrefix Sum
Medium
37.4% Accepted
28.8% Freq
ArrayBinary SearchSorting+1 more
Medium
63.8% Accepted
28.5% Freq
ArrayDivide and ConquerBit Manipulation+5 more
Medium
40.4% Accepted
27.3% Freq
ArrayDynamic ProgrammingPrefix Sum
Medium
31.6% Accepted
27.3% Freq
ArrayHash TableSliding Window+1 more
Medium
52.0% Accepted
26.8% Freq
ArrayHash TableDivide and Conquer+2 more
Medium
39.5% Accepted
25.1% Freq
ArrayStackMonotonic Stack+1 more
Medium
80.5% Accepted
22.7% Freq
Solution
ArrayBit ManipulationQueue+2 more
Medium
85.1% Accepted
22.2% Freq
Solution
ArrayStringPrefix Sum
Hard
8.8% Accepted
20.2% Freq
ArrayHash TableDivide and Conquer+2 more
Medium
37.4% Accepted
17.5% Freq
ArrayHash TableDynamic Programming+1 more
Medium
26.0% Accepted
16.8% Freq
StringDynamic ProgrammingSliding Window+1 more
Medium
17.8% Accepted
15.1% Freq
Hash TableStringPrefix Sum
Medium
32.0% Accepted
13.7% Freq
ArrayHash TablePrefix Sum
Medium
27.2% Accepted
11.6% Freq
ArrayPrefix Sum
Hard
26.0% Accepted
6.9% Freq
Dynamic ProgrammingPrefix Sum
Medium
24.4% Accepted
3.8% Freq
ArrayHash TablePrefix Sum
Hard
25.0% Accepted
3.0% Freq
ArrayHash TablePrefix Sum
644. Maximum Average Subarray II
💰 Premium
Hard
37.6% Accepted
Solution
ArrayBinary SearchPrefix Sum
Hard
53.0% Accepted
Solution
ArrayPrefix Sum
Hard
55.9% Accepted
Solution
StringDynamic ProgrammingPrefix Sum
Medium
75.7% Accepted
Solution
Hash TableStringBit Manipulation+1 more
Medium
84.9% Accepted
Solution
ArrayHash TableMath+2 more
Medium
48.5% Accepted
ArrayHash TableGreedy+1 more
Medium
39.8% Accepted
ArrayGreedySorting+1 more
Medium
42.8% Accepted
ArrayHash TablePrefix Sum
Hard
39.7% Accepted
ArrayDynamic ProgrammingSegment Tree+4 more
Medium
37.5% Accepted
Hash TableStringCounting+1 more
Medium
35.4% Accepted
ArrayPrefix Sum
Medium
84.8% Accepted
Solution
ArrayBit ManipulationPrefix Sum
Medium
49.7% Accepted
ArrayMathSorting+3 more
Medium
53.2% Accepted
Solution
ArrayBinary SearchSimulation+1 more
Medium
66.6% Accepted
Solution
Hash TableStringBit Manipulation+1 more
Medium
53.6% Accepted
ArrayHash TablePrefix Sum
Hard
35.1% Accepted
ArrayHash TableCounting+2 more
Medium
74.3% Accepted
Solution
Hash TableMathString+2 more
Medium
45.3% Accepted
ArrayHash TablePrefix Sum
Medium
44.0% Accepted
ArrayGreedySorting+2 more
Medium
35.6% Accepted
StringGreedyPrefix Sum
Hard
60.4% Accepted
Solution
ArrayDynamic ProgrammingPrefix Sum
Hard
30.0% Accepted
ArrayTwo PointersBinary Search+4 more
Medium
62.6% Accepted
ArrayPrefix Sum
Medium
37.1% Accepted
ArrayMatrixPrefix Sum
Medium
35.3% Accepted
ArrayBinary SearchGreedy+3 more
Hard
37.5% Accepted
ArrayBinary SearchQueue+4 more
Hard
32.4% Accepted
StringDynamic ProgrammingPrefix Sum
Medium
57.1% Accepted
Hash TableMathString+1 more
2505. Bitwise OR of All Subsequence Sums
💰 Premium
Medium
64.4% Accepted
ArrayMathBit Manipulation+2 more
Hard
34.0% Accepted
ArrayBinary SearchGreedy+3 more
Medium
52.8% Accepted
ArrayHash TableBit Manipulation+1 more
Medium
72.4% Accepted
ArrayPrefix Sum
Medium
33.0% Accepted
ArrayPrefix Sum
Hard
45.2% Accepted
ArrayBinary SearchSorting+1 more
2838. Maximum Coins Heroes Can Collect
💰 Premium
Medium
68.6% Accepted
Solution
ArrayTwo PointersBinary Search+2 more
Medium
58.1% Accepted
Solution
ArrayHash TablePrefix Sum
Hard
25.6% Accepted
Hash TableMathString+2 more
2955. Number of Same-End Substrings
💰 Premium
Medium
61.6% Accepted
Solution
ArrayHash TableString+2 more
Medium
65.5% Accepted
Solution
ArrayGreedySorting+1 more
Hard
23.8% Accepted
Hash TableStringPrefix Sum
Medium
56.4% Accepted
Breadth-First SearchGraphPrefix Sum
Hard
22.6% Accepted
GraphPrefix Sum
Medium
57.9% Accepted
ArrayMatrixPrefix Sum
Hard
20.7% Accepted
ArrayGreedySliding Window+1 more
Hard
58.6% Accepted
Hash TableStringBinary Search+1 more
Medium
26.7% Accepted
Dynamic ProgrammingPrefix Sum
Hard
26.6% Accepted
Dynamic ProgrammingPrefix Sum
Medium
45.7% Accepted
Solution
ArrayBinary SearchPrefix Sum
Medium
23.8% Accepted
ArrayHash TablePrefix Sum
Hard
25.8% Accepted
ArrayDynamic ProgrammingMatrix+1 more
Hard
23.7% Accepted
ArrayMathDynamic Programming+2 more
Hard
22.4% Accepted
ArrayStringBinary Search+2 more
Hard
38.3% Accepted
ArrayHash TableString+3 more
Medium
53.1% Accepted
ArrayStringPrefix Sum
Medium
27.9% Accepted
ArrayHash TablePrefix Sum
Medium
25.3% Accepted
ArrayDynamic ProgrammingPrefix Sum
Hard
26.5% Accepted
ArrayDynamic ProgrammingPrefix Sum
Medium
42.1% Accepted
ArrayMatrixEnumeration+1 more
Hard
21.2% Accepted
ArrayHash TableMatrix+2 more
3656. Determine if a Simple Graph Exists
💰 Premium
Medium
49.5% Accepted
ArrayBinary SearchGraph+2 more
Medium
42.8% Accepted
ArrayBinary SearchDesign+1 more
Page 1 of 17
Database (198 questions)
Medium
48.9% Accepted
71.9% Freq
Solution
Database
Medium
56.2% Accepted
59.2% Freq
Solution
Database
Medium
57.7% Accepted
53.8% Freq
Solution
Database
Medium
63.4% Accepted
53.5% Freq
Solution
Database
Medium
61.8% Accepted
52.9% Freq
Solution
Database
Hard
59.0% Accepted
51.5% Freq
Solution
Database
Medium
45.1% Accepted
50.2% Freq
Solution
Database
Medium
84.2% Accepted
40.2% Freq
Database
Medium
77.8% Accepted
37.0% Freq
Database
Medium
61.7% Accepted
32.9% Freq
Database
Hard
42.3% Accepted
Database
Hard
49.1% Accepted
Solution
Database
Hard
56.7% Accepted
Solution
Database
Medium
82.0% Accepted
Database
Medium
86.2% Accepted
Database
Medium
74.9% Accepted
Solution
Database
Medium
71.7% Accepted
Solution
Database
Hard
58.1% Accepted
Database
Medium
64.9% Accepted
Solution
Database
Medium
80.8% Accepted
Database
Hard
78.4% Accepted
Database
Medium
70.6% Accepted
Database
Medium
69.4% Accepted
Database
Hard
50.9% Accepted
Solution
Database
Hard
45.5% Accepted
Solution
Database
Hard
65.2% Accepted
Database
Medium
72.0% Accepted
Database
Medium
78.7% Accepted
Solution
Database
Medium
70.8% Accepted
Database
Medium
86.6% Accepted
Database
Medium
48.9% Accepted
Database
Hard
39.9% Accepted
Solution
Database
Medium
46.5% Accepted
Database
Medium
71.8% Accepted
Database
Medium
40.4% Accepted
Database
Medium
73.5% Accepted
Database
Medium
84.0% Accepted
Database
Medium
51.3% Accepted
Database
Hard
48.6% Accepted
Database
Hard
36.4% Accepted
Database
Hard
34.8% Accepted
Solution
Database
Hard
42.0% Accepted
Database
Medium
38.6% Accepted
Solution
Database
Medium
67.3% Accepted
Database
Medium
61.6% Accepted
Database
Hard
39.3% Accepted
Database
Medium
52.6% Accepted
Database
Medium
36.4% Accepted
Database
Medium
42.2% Accepted
Database
Page 1 of 17
Heap (Priority Queue) (187 questions)
253. Meeting Rooms II
💰 Premium
Medium
52.4% Accepted
90.1% Freq
Solution
ArrayTwo PointersGreedy+3 more
Medium
68.5% Accepted
88.7% Freq
Solution
ArrayDivide and ConquerSorting+2 more
Medium
38.7% Accepted
88.4% Freq
Solution
ArrayGreedySorting+1 more
Medium
56.6% Accepted
87.4% Freq
Solution
Hash TableStringGreedy+3 more
Medium
65.1% Accepted
86.8% Freq
Solution
ArrayHash TableDivide and Conquer+5 more
Hard
48.1% Accepted
85.4% Freq
Solution
ArrayQueueSliding Window+2 more
Hard
58.0% Accepted
84.0% Freq
Solution
Linked ListDivide and ConquerHeap (Priority Queue)+1 more
Medium
74.1% Accepted
83.5% Freq
Solution
ArrayGreedyHeap (Priority Queue)
Hard
63.8% Accepted
81.8% Freq
Solution
ArrayBreadth-First SearchHeap (Priority Queue)+1 more
Hard
69.9% Accepted
81.4% Freq
Solution
ArrayDynamic ProgrammingHeap (Priority Queue)
Hard
38.8% Accepted
80.6% Freq
Solution
ArrayHash TableSliding Window+1 more
Medium
55.0% Accepted
80.2% Freq
Solution
ArrayGreedySorting+2 more
Medium
65.1% Accepted
79.8% Freq
Solution
ArrayStringBinary Search+3 more
Hard
53.8% Accepted
79.4% Freq
Solution
Two PointersDesignSorting+2 more
Medium
59.7% Accepted
78.1% Freq
Solution
ArrayHash TableString+5 more
642. Design Search Autocomplete System
💰 Premium
Hard
49.6% Accepted
76.8% Freq
Solution
StringDepth-First SearchDesign+4 more
Medium
62.2% Accepted
75.3% Freq
Solution
ArrayHash TableGreedy+3 more
Hard
48.9% Accepted
74.9% Freq
Solution
ArrayHash TableSorting+2 more
Medium
57.0% Accepted
74.8% Freq
Solution
ArrayQueueSliding Window+3 more
Medium
55.5% Accepted
74.7% Freq
Solution
ArrayGraphHeap (Priority Queue)+2 more
Medium
68.4% Accepted
73.7% Freq
Solution
ArrayMathDivide and Conquer+4 more
Medium
50.5% Accepted
73.1% Freq
Solution
ArrayGreedyHeap (Priority Queue)
Medium
49.1% Accepted
72.6% Freq
Solution
ArrayTwo PointersBinary Search+3 more
Medium
51.0% Accepted
72.5% Freq
Solution
Hash TableStringStack+2 more
Medium
49.4% Accepted
72.5% Freq
Solution
Hash TableDesignHeap (Priority Queue)+1 more
Medium
48.6% Accepted
71.2% Freq
Solution
Hash TableDesignHeap (Priority Queue)+2 more
Medium
68.1% Accepted
71.0% Freq
Solution
ArrayGraphHeap (Priority Queue)+2 more
Medium
52.8% Accepted
70.3% Freq
Solution
ArrayHash TableString+3 more
Medium
56.1% Accepted
70.0% Freq
Solution
ArrayDivide and ConquerSorting+5 more
Hard
15.0% Accepted
69.4% Freq
StringGreedyHeap (Priority Queue)
Medium
56.1% Accepted
67.8% Freq
Solution
ArraySortingHeap (Priority Queue)+2 more
Medium
47.0% Accepted
67.5% Freq
Solution
ArraySortingHeap (Priority Queue)
759. Employee Free Time
💰 Premium
Hard
72.6% Accepted
67.0% Freq
Solution
ArrayLine SweepSorting+1 more
Medium
39.0% Accepted
66.7% Freq
Solution
ArrayHash TableBinary Search+2 more
Medium
74.8% Accepted
66.3% Freq
Solution
Hash TableStringSorting+3 more
Hard
44.5% Accepted
66.1% Freq
Solution
ArrayDivide and ConquerBinary Indexed Tree+5 more
Hard
67.3% Accepted
66.1% Freq
Solution
ArrayBinary SearchDepth-First Search+4 more
2714. Find Shortest Path with K Hops
💰 Premium
Hard
68.8% Accepted
65.5% Freq
GraphHeap (Priority Queue)Shortest Path
Medium
41.0% Accepted
64.5% Freq
Solution
Dynamic ProgrammingDepth-First SearchBreadth-First Search+3 more
Medium
29.9% Accepted
62.8% Freq
ArrayMathBinary Search+3 more
Hard
69.9% Accepted
62.8% Freq
Solution
ArrayHash TableGreedy+3 more
Medium
48.5% Accepted
61.8% Freq
Solution
ArrayBinary SearchBreadth-First Search+3 more
Hard
47.7% Accepted
61.5% Freq
Solution
ArrayGreedySorting+1 more
Hard
70.8% Accepted
61.1% Freq
Solution
ArrayBreadth-First SearchGraph+3 more
Medium
58.2% Accepted
61.1% Freq
Solution
ArraySortingHeap (Priority Queue)
Medium
64.0% Accepted
61.1% Freq
Solution
ArrayBinary SearchSorting+2 more
Medium
44.6% Accepted
59.1% Freq
ArrayHash TableDepth-First Search+5 more
Hard
40.4% Accepted
58.8% Freq
ArraySortingHeap (Priority Queue)
Medium
43.1% Accepted
58.1% Freq
Solution
DesignHeap (Priority Queue)Ordered Set
Hard
40.9% Accepted
57.6% Freq
Solution
ArrayDynamic ProgrammingGreedy+1 more
Medium
43.6% Accepted
57.6% Freq
Hash TableLinked ListDesign+1 more
Hard
45.0% Accepted
57.6% Freq
Solution
ArrayHeap (Priority Queue)Simulation+1 more
Medium
53.1% Accepted
57.1% Freq
ArrayGreedyHeap (Priority Queue)
Hard
41.0% Accepted
55.4% Freq
Solution
ArrayGreedySorting+1 more
Medium
58.9% Accepted
55.2% Freq
Solution
Depth-First SearchBreadth-First SearchGraph+2 more
Medium
49.4% Accepted
55.2% Freq
Solution
Hash TableMathDynamic Programming+1 more
Medium
52.8% Accepted
54.6% Freq
ArrayHeap (Priority Queue)Simulation
Medium
58.0% Accepted
54.4% Freq
Solution
ArrayQueueSliding Window+3 more
272. Closest Binary Search Tree Value II
💰 Premium
Hard
60.8% Accepted
53.9% Freq
Solution
Two PointersStackTree+4 more
Hard
36.3% Accepted
53.8% Freq
Solution
ArrayHeap (Priority Queue)
358. Rearrange String k Distance Apart
💰 Premium
Hard
39.4% Accepted
53.5% Freq
Solution
Hash TableStringGreedy+3 more
Medium
41.1% Accepted
53.4% Freq
Solution
ArrayHeap (Priority Queue)
Medium
41.8% Accepted
53.2% Freq
ArrayGraphHeap (Priority Queue)+1 more
Hard
32.4% Accepted
53.0% Freq
Solution
ArrayBinary SearchQueue+4 more
Hard
72.2% Accepted
52.1% Freq
Solution
ArrayGreedySorting+1 more
1167. Minimum Cost to Connect Sticks
💰 Premium
Medium
71.5% Accepted
50.7% Freq
Solution
ArrayGreedyHeap (Priority Queue)
Hard
53.5% Accepted
50.5% Freq
ArrayDynamic ProgrammingGreedy+1 more
Medium
62.3% Accepted
50.3% Freq
Solution
ArrayBinary SearchDepth-First Search+4 more
Medium
45.0% Accepted
49.8% Freq
ArrayHash TableString+2 more
Hard
62.8% Accepted
48.1% Freq
Solution
ArrayHash TableDesign+2 more
Medium
41.5% Accepted
48.0% Freq
ArrayGreedyGraph+2 more
Medium
65.5% Accepted
47.8% Freq
Solution
StringGreedyHeap (Priority Queue)
Hard
53.2% Accepted
46.5% Freq
ArrayBinary SearchLine Sweep+2 more
Medium
70.6% Accepted
46.0% Freq
Solution
Hash TableDesignHeap (Priority Queue)+1 more
Hard
49.2% Accepted
45.5% Freq
ArrayBreadth-First SearchHeap (Priority Queue)+1 more
1102. Path With Maximum Minimum Value
💰 Premium
Medium
54.3% Accepted
45.4% Freq
Solution
ArrayBinary SearchDepth-First Search+4 more
Hard
29.9% Accepted
45.0% Freq
ArrayBinary SearchDynamic Programming+4 more
Medium
48.2% Accepted
44.5% Freq
ArrayHash TableGreedy+3 more
Medium
54.4% Accepted
43.7% Freq
Solution
ArrayGreedySorting+1 more
Hard
55.8% Accepted
42.5% Freq
Solution
GraphHeap (Priority Queue)Shortest Path
505. The Maze II
💰 Premium
Medium
54.5% Accepted
42.4% Freq
Solution
ArrayDepth-First SearchBreadth-First Search+4 more
Medium
46.5% Accepted
42.4% Freq
ArrayHash TableString+2 more
Medium
65.1% Accepted
41.9% Freq
Solution
ArrayGreedyHeap (Priority Queue)
Hard
46.3% Accepted
41.5% Freq
Depth-First SearchBreadth-First SearchGraph+2 more
499. The Maze III
💰 Premium
Hard
51.0% Accepted
41.3% Freq
Solution
ArrayStringDepth-First Search+5 more
Medium
28.8% Accepted
41.3% Freq
MathGraphHeap (Priority Queue)+2 more
Hard
59.4% Accepted
41.1% Freq
Solution
ArrayTwo PointersBreadth-First Search+4 more
Hard
27.0% Accepted
41.1% Freq
ArrayDynamic ProgrammingBit Manipulation+4 more
Medium
63.6% Accepted
40.8% Freq
Solution
ArrayTwo PointersGreedy+3 more
Medium
36.6% Accepted
40.6% Freq
ArrayGraphHeap (Priority Queue)+1 more
Medium
62.8% Accepted
40.3% Freq
ArrayHash TableGreedy+2 more
Medium
46.7% Accepted
39.6% Freq
GraphHeap (Priority Queue)Shortest Path
Hard
53.9% Accepted
38.6% Freq
Solution
ArrayGreedyHeap (Priority Queue)+1 more
Hard
38.4% Accepted
38.5% Freq
DesignQueueHeap (Priority Queue)+2 more
Hard
56.5% Accepted
38.3% Freq
Solution
ArrayBreadth-First SearchGraph+3 more
Medium
41.7% Accepted
37.9% Freq
ArrayHeap (Priority Queue)
Medium
68.3% Accepted
37.9% Freq
MathGreedyHeap (Priority Queue)
Hard
70.3% Accepted
37.8% Freq
Solution
ArrayBreadth-First SearchGraph+3 more
Medium
45.8% Accepted
36.4% Freq
ArrayBreadth-First SearchSorting+2 more
Medium
46.2% Accepted
36.1% Freq
Solution
ArrayDynamic ProgrammingQueue+2 more
Hard
40.9% Accepted
35.3% Freq
ArrayBinary SearchStack+3 more
Medium
69.3% Accepted
31.9% Freq
Solution
ArrayHash TableGreedy+2 more
Medium
43.4% Accepted
31.8% Freq
Solution
ArrayTwo PointersHeap (Priority Queue)+1 more
Medium
51.8% Accepted
31.5% Freq
Solution
ArrayHash TableGreedy+1 more
Hard
63.6% Accepted
31.4% Freq
Solution
ArrayGreedySorting+1 more
Medium
60.8% Accepted
31.3% Freq
Solution
ArrayBinary SearchDynamic Programming+2 more
Medium
68.8% Accepted
30.5% Freq
Solution
ArrayTwo PointersBinary Search+2 more
Hard
52.2% Accepted
30.5% Freq
Solution
ArrayBinary SearchStack+4 more
Medium
63.8% Accepted
28.5% Freq
ArrayDivide and ConquerBit Manipulation+5 more
Medium
70.9% Accepted
27.3% Freq
Solution
Hash TableStringGreedy+2 more
Hard
56.3% Accepted
24.8% Freq
Solution
ArrayDynamic ProgrammingQueue+3 more
Medium
66.8% Accepted
24.4% Freq
Solution
DesignHeap (Priority Queue)
Medium
63.9% Accepted
24.4% Freq
Solution
ArrayGreedyHeap (Priority Queue)
Medium
65.9% Accepted
19.0% Freq
Solution
ArrayHash TableSorting+1 more
Medium
34.3% Accepted
18.3% Freq
ArrayTwo PointersGreedy+2 more
Medium
65.4% Accepted
13.4% Freq
Solution
ArrayGraphHeap (Priority Queue)+1 more
Hard
13.5% Accepted
13.2% Freq
ArrayGreedySegment Tree+1 more
Hard
35.8% Accepted
ArrayBreadth-First SearchHeap (Priority Queue)+1 more
683. K Empty Slots
💰 Premium
Hard
37.9% Accepted
Solution
ArrayBinary Indexed TreeSegment Tree+5 more
Hard
51.4% Accepted
Solution
GraphHeap (Priority Queue)Shortest Path
Medium
63.2% Accepted
Solution
Union FindGraphHeap (Priority Queue)+1 more
Hard
65.3% Accepted
Solution
Union FindGraphHeap (Priority Queue)+1 more
Hard
62.2% Accepted
ArrayBinary SearchHeap (Priority Queue)+1 more
Hard
39.7% Accepted
ArrayDynamic ProgrammingSegment Tree+4 more
Medium
41.1% Accepted
Solution
ArrayGreedyHeap (Priority Queue)
Medium
40.5% Accepted
Dynamic ProgrammingGraphTopological Sort+2 more
1810. Minimum Path Cost in a Hidden Grid
💰 Premium
Medium
58.4% Accepted
ArrayDepth-First SearchBreadth-First Search+5 more
Medium
49.7% Accepted
ArrayMathSorting+3 more
Medium
60.4% Accepted
Solution
ArrayHash TableHeap (Priority Queue)
Medium
47.3% Accepted
ArrayStringDivide and Conquer+3 more
Medium
58.0% Accepted
ArrayGreedySorting+1 more
Medium
59.9% Accepted
Solution
GraphHeap (Priority Queue)Shortest Path
Hard
61.5% Accepted
DesignHeap (Priority Queue)Data Stream+1 more
Medium
49.6% Accepted
ArrayGreedyHeap (Priority Queue)
Medium
42.8% Accepted
ArrayGreedyHeap (Priority Queue)
Medium
69.1% Accepted
Solution
GreedyGraphSorting+1 more
Medium
26.2% Accepted
ArrayBinary SearchGreedy+2 more
Medium
46.5% Accepted
ArrayStringDivide and Conquer+4 more
Hard
58.8% Accepted
ArrayMathSorting+2 more
Medium
57.1% Accepted
Solution
Hash TableDesignHeap (Priority Queue)+1 more
Hard
37.5% Accepted
ArrayBinary SearchQueue+4 more
Medium
54.3% Accepted
Hash TableBinary SearchUnion Find+5 more
2473. Minimum Cost to Buy Apples
💰 Premium
Medium
67.1% Accepted
Solution
ArrayGraphHeap (Priority Queue)+1 more
Hard
44.3% Accepted
ArrayHeap (Priority Queue)Simulation
Medium
64.5% Accepted
Solution
ArrayHash TableSorting+2 more
2599. Make the Prefix Sum Non-negative
💰 Premium
Medium
51.8% Accepted
Solution
ArrayGreedyHeap (Priority Queue)
Hard
23.2% Accepted
ArrayDynamic ProgrammingStack+5 more
Hard
64.4% Accepted
Solution
GraphDesignHeap (Priority Queue)+1 more
Medium
59.9% Accepted
ArraySortingHeap (Priority Queue)+2 more
2737. Find the Closest Marked Node
💰 Premium
Medium
65.3% Accepted
Solution
ArrayGraphHeap (Priority Queue)+1 more
Hard
28.3% Accepted
ArrayHash TableStack+3 more
Hard
60.8% Accepted
ArrayGreedySorting+2 more
Medium
47.9% Accepted
ArrayDynamic ProgrammingQueue+2 more
Hard
49.9% Accepted
Bit ManipulationGraphHeap (Priority Queue)+2 more
Hard
46.2% Accepted
ArrayDynamic ProgrammingQueue+2 more
Hard
36.9% Accepted
Dynamic ProgrammingTreeDepth-First Search+2 more
Hard
31.0% Accepted
ArrayHash TableSliding Window+1 more
Hard
20.5% Accepted
ArrayBinary SearchGreedy+1 more
Medium
45.8% Accepted
Solution
ArrayHeap (Priority Queue)Simulation
Medium
48.4% Accepted
ArrayHash TableSorting+2 more
Medium
28.5% Accepted
Hash TableStringGreedy+3 more
Medium
42.1% Accepted
ArrayHash TableHeap (Priority Queue)+1 more
Hard
12.1% Accepted
ArrayHeap (Priority Queue)Simulation
Medium
48.6% Accepted
ArrayHeap (Priority Queue)
Medium
31.8% Accepted
ArrayBreadth-First SearchGraph+3 more
Medium
36.5% Accepted
ArrayMathBinary Search+2 more
Hard
16.7% Accepted
ArrayHash TableSliding Window+1 more
3369. Design an Array Statistics Tracker
💰 Premium
Hard
34.7% Accepted
Hash TableBinary SearchDesign+4 more
Medium
67.9% Accepted
ArrayHash TableDesign+3 more
Medium
46.6% Accepted
ArrayHash TableMath+2 more
Medium
60.2% Accepted
ArrayGreedySorting+2 more
Medium
66.1% Accepted
ArrayGreedySorting+1 more
Medium
32.4% Accepted
ArraySortingHeap (Priority Queue)
Hard
26.5% Accepted
ArrayHash TableMath+3 more
Hard
52.1% Accepted
ArrayMathGreedy+1 more
Hard
14.5% Accepted
ArrayHash TableLinked List+4 more
Medium
45.4% Accepted
GraphHeap (Priority Queue)Shortest Path
Page 1 of 16
Graph (175 questions)
Hard
38.7% Accepted
95.5% Freq
ArrayTreeGraph+1 more
277. Find the Celebrity
💰 Premium
Medium
48.7% Accepted
80.7% Freq
Solution
Two PointersGraphInteractive
Medium
50.2% Accepted
79.0% Freq
Solution
Depth-First SearchBreadth-First SearchGraph+1 more
269. Alien Dictionary
💰 Premium
Hard
36.9% Accepted
77.2% Freq
Solution
ArrayStringDepth-First Search+3 more
Medium
55.5% Accepted
74.7% Freq
Solution
ArrayGraphHeap (Priority Queue)+2 more
Medium
54.4% Accepted
74.7% Freq
Solution
Depth-First SearchBreadth-First SearchGraph+1 more
Hard
57.4% Accepted
71.2% Freq
Solution
Hash TableDynamic ProgrammingGraph+3 more
Medium
68.1% Accepted
71.0% Freq
Solution
ArrayGraphHeap (Priority Queue)+2 more
Hard
55.9% Accepted
70.8% Freq
Solution
ArrayDynamic ProgrammingDepth-First Search+5 more
Hard
56.0% Accepted
69.7% Freq
Dynamic ProgrammingDepth-First SearchBreadth-First Search+1 more
Medium
63.6% Accepted
68.0% Freq
Solution
ArrayStringDepth-First Search+4 more
Hard
39.5% Accepted
67.3% Freq
GraphShortest Path
Hard
43.9% Accepted
66.4% Freq
Depth-First SearchGraphEulerian Circuit
Medium
69.5% Accepted
65.9% Freq
Solution
Depth-First SearchBreadth-First SearchUnion Find+1 more
Hard
58.8% Accepted
65.8% Freq
Solution
Depth-First SearchGraphBiconnected Component
2714. Find Shortest Path with K Hops
💰 Premium
Hard
68.8% Accepted
65.5% Freq
GraphHeap (Priority Queue)Shortest Path
Hard
42.7% Accepted
64.8% Freq
Solution
ArrayHash TableDepth-First Search+3 more
631. Design Excel Sum Formula
💰 Premium
Hard
40.5% Accepted
64.8% Freq
Solution
ArrayHash TableString+4 more
Medium
41.0% Accepted
64.5% Freq
Solution
Dynamic ProgrammingDepth-First SearchBreadth-First Search+3 more
Medium
56.5% Accepted
64.5% Freq
Solution
ArrayHash TableString+2 more
Medium
52.9% Accepted
64.3% Freq
Solution
Depth-First SearchGraph
Hard
65.6% Accepted
63.1% Freq
Solution
Dynamic ProgrammingBit ManipulationBreadth-First Search+2 more
Medium
62.5% Accepted
62.9% Freq
Solution
Hash TableDepth-First SearchUnion Find+1 more
Medium
63.8% Accepted
62.5% Freq
Solution
Hash TableDepth-First SearchBreadth-First Search+1 more
Medium
64.5% Accepted
61.3% Freq
Solution
Depth-First SearchBreadth-First SearchUnion Find+1 more
Hard
61.9% Accepted
61.2% Freq
Solution
Depth-First SearchGraphTopological Sort
Hard
70.8% Accepted
61.1% Freq
Solution
ArrayBreadth-First SearchGraph+3 more
Medium
44.6% Accepted
59.1% Freq
ArrayHash TableDepth-First Search+5 more
Medium
62.6% Accepted
59.0% Freq
Solution
ArrayDepth-First SearchGraph+1 more
Hard
65.6% Accepted
58.9% Freq
Solution
Depth-First SearchBreadth-First SearchGraph+1 more
Medium
58.5% Accepted
58.6% Freq
Solution
Depth-First SearchBreadth-First SearchUnion Find+1 more
Hard
66.8% Accepted
57.9% Freq
Solution
ArrayDynamic ProgrammingGraph+1 more
Hard
34.1% Accepted
57.8% Freq
Solution
MathDynamic ProgrammingGraph+3 more
Hard
68.2% Accepted
57.1% Freq
Solution
ArrayBreadth-First SearchGraph
Medium
83.4% Accepted
56.5% Freq
Solution
BacktrackingDepth-First SearchBreadth-First Search+1 more
Medium
52.0% Accepted
56.4% Freq
Solution
Depth-First SearchBreadth-First SearchUnion Find+1 more
Hard
68.3% Accepted
56.1% Freq
Solution
ArrayBit ManipulationUnion Find+1 more
Medium
43.1% Accepted
55.9% Freq
Binary SearchUnion FindGraph+1 more
Medium
58.9% Accepted
55.2% Freq
Solution
Depth-First SearchBreadth-First SearchGraph+2 more
Medium
49.6% Accepted
54.5% Freq
Solution
Depth-First SearchBreadth-First SearchUnion Find+1 more
Hard
60.4% Accepted
54.4% Freq
ArrayBacktrackingGraph
Hard
24.1% Accepted
54.4% Freq
ArrayTwo PointersBinary Search+5 more
Medium
44.6% Accepted
53.9% Freq
Binary SearchUnion FindGraph+1 more
Hard
53.9% Accepted
53.7% Freq
Solution
ArrayStringTree+3 more
Hard
58.2% Accepted
53.5% Freq
Solution
Depth-First SearchGraphEulerian Circuit
Hard
58.8% Accepted
53.5% Freq
Solution
GreedyDepth-First SearchBreadth-First Search+2 more
Medium
41.8% Accepted
53.2% Freq
ArrayGraphHeap (Priority Queue)+1 more
Hard
20.7% Accepted
53.2% Freq
StringDynamic ProgrammingBit Manipulation+2 more
Medium
69.8% Accepted
53.1% Freq
Solution
ArrayUnion FindGraph+1 more
Medium
69.7% Accepted
53.0% Freq
Solution
Depth-First SearchBreadth-First SearchGraph+1 more
Medium
65.7% Accepted
52.9% Freq
Solution
Depth-First SearchBreadth-First SearchUnion Find+1 more
Hard
40.6% Accepted
52.9% Freq
ArrayDynamic ProgrammingGraph
Hard
65.4% Accepted
52.7% Freq
Solution
Dynamic ProgrammingTreeDepth-First Search+1 more
Medium
55.0% Accepted
52.5% Freq
Depth-First SearchBreadth-First SearchGraph
Hard
60.3% Accepted
52.3% Freq
ArrayGraphTopological Sort+1 more
Medium
54.9% Accepted
52.1% Freq
ArrayHash TableBinary Search+2 more
Hard
17.9% Accepted
50.9% Freq
ArrayStringBit Manipulation+3 more
Medium
66.9% Accepted
50.8% Freq
Solution
Depth-First SearchBreadth-First SearchUnion Find+1 more
Medium
49.6% Accepted
49.5% Freq
Solution
ArrayMathDepth-First Search+3 more
Medium
41.5% Accepted
48.0% Freq
ArrayGreedyGraph+2 more
Hard
43.9% Accepted
47.6% Freq
GraphEnumeration
Hard
67.2% Accepted
47.6% Freq
Solution
Depth-First SearchBreadth-First SearchUnion Find+1 more
1245. Tree Diameter
💰 Premium
Medium
61.2% Accepted
47.0% Freq
Solution
TreeDepth-First SearchBreadth-First Search+2 more
Medium
42.2% Accepted
46.6% Freq
Solution
Depth-First SearchBreadth-First SearchGraph+1 more
Hard
70.3% Accepted
46.2% Freq
Solution
Union FindGraph
Medium
75.2% Accepted
45.5% Freq
Solution
Depth-First SearchBreadth-First SearchGraph
Hard
29.9% Accepted
45.0% Freq
ArrayBinary SearchDynamic Programming+4 more
Medium
71.5% Accepted
44.8% Freq
Solution
Dynamic ProgrammingGraphShortest Path
Medium
60.4% Accepted
43.6% Freq
ArrayStringDepth-First Search+2 more
Medium
62.0% Accepted
43.1% Freq
Solution
Depth-First SearchBreadth-First SearchGraph+1 more
Hard
55.8% Accepted
42.5% Freq
Solution
GraphHeap (Priority Queue)Shortest Path
Medium
47.5% Accepted
42.5% Freq
Solution
Breadth-First SearchGraph
505. The Maze II
💰 Premium
Medium
54.5% Accepted
42.4% Freq
Solution
ArrayDepth-First SearchBreadth-First Search+4 more
Hard
66.4% Accepted
42.1% Freq
Solution
Depth-First SearchGraphEulerian Circuit
Hard
41.7% Accepted
42.0% Freq
Solution
ArrayUnion FindGraph+3 more
Hard
36.7% Accepted
41.9% Freq
TreeDepth-First SearchBreadth-First Search+1 more
Medium
65.4% Accepted
41.8% Freq
Solution
Depth-First SearchBreadth-First SearchGraph
Hard
46.3% Accepted
41.5% Freq
Depth-First SearchBreadth-First SearchGraph+2 more
499. The Maze III
💰 Premium
Hard
51.0% Accepted
41.3% Freq
Solution
ArrayStringDepth-First Search+5 more
Hard
44.6% Accepted
41.3% Freq
ArrayTreeGraph+1 more
Medium
28.8% Accepted
41.3% Freq
MathGraphHeap (Priority Queue)+2 more
Hard
57.2% Accepted
41.1% Freq
Solution
TreeDepth-First SearchBreadth-First Search+1 more
Hard
27.0% Accepted
41.1% Freq
ArrayDynamic ProgrammingBit Manipulation+4 more
Medium
36.6% Accepted
40.6% Freq
ArrayGraphHeap (Priority Queue)+1 more
261. Graph Valid Tree
💰 Premium
Medium
49.6% Accepted
40.3% Freq
Solution
Depth-First SearchBreadth-First SearchUnion Find+1 more
Hard
34.7% Accepted
40.3% Freq
MathGreedyGraph
Medium
59.6% Accepted
40.1% Freq
Solution
Depth-First SearchBreadth-First SearchGraph+1 more
Medium
46.7% Accepted
39.6% Freq
GraphHeap (Priority Queue)Shortest Path
Hard
39.5% Accepted
39.4% Freq
ArrayGraphSorting+1 more
Medium
51.3% Accepted
38.9% Freq
Solution
ArrayStringUnion Find+1 more
Medium
59.9% Accepted
38.8% Freq
Solution
ArrayHash TableTree+4 more
Hard
38.7% Accepted
38.5% Freq
Binary SearchGreedyUnion Find+2 more
Hard
50.2% Accepted
38.4% Freq
Solution
Depth-First SearchBreadth-First SearchGraph+1 more
Hard
56.5% Accepted
38.3% Freq
Solution
ArrayBreadth-First SearchGraph+3 more
Medium
67.4% Accepted
37.9% Freq
Solution
ArrayTreeDepth-First Search+2 more
Hard
70.3% Accepted
37.8% Freq
Solution
ArrayBreadth-First SearchGraph+3 more
Hard
47.2% Accepted
37.8% Freq
ArrayDynamic ProgrammingTree+2 more
Medium
43.3% Accepted
37.8% Freq
Binary SearchDepth-First SearchBreadth-First Search+2 more
Medium
58.2% Accepted
37.2% Freq
Solution
Depth-First SearchBreadth-First SearchUnion Find+1 more
Hard
29.9% Accepted
36.4% Freq
Dynamic ProgrammingBit ManipulationGraph+1 more
Medium
64.5% Accepted
36.4% Freq
Solution
TreeDepth-First SearchBreadth-First Search+1 more
Medium
37.2% Accepted
35.3% Freq
Solution
Dynamic ProgrammingGraphTopological Sort+1 more
Hard
34.1% Accepted
34.6% Freq
Hash TableGraph
Hard
35.6% Accepted
32.6% Freq
Solution
Depth-First SearchBreadth-First SearchUnion Find+1 more
Medium
44.0% Accepted
31.5% Freq
Solution
TreeDepth-First SearchBreadth-First Search+3 more
Hard
62.4% Accepted
30.9% Freq
Solution
Breadth-First SearchGraphShortest Path
Hard
38.6% Accepted
29.9% Freq
Breadth-First SearchGraph
Hard
66.2% Accepted
29.8% Freq
Solution
Union FindGraphSorting+2 more
Medium
54.7% Accepted
29.8% Freq
ArrayBreadth-First SearchGraph
Hard
56.2% Accepted
28.5% Freq
Solution
ArrayHash TableTree+3 more
Medium
61.9% Accepted
27.0% Freq
Solution
ArrayBreadth-First SearchGraph
Hard
57.5% Accepted
25.8% Freq
Solution
ArrayDynamic ProgrammingDepth-First Search+5 more
Medium
81.3% Accepted
25.2% Freq
Solution
Graph
Medium
50.9% Accepted
24.6% Freq
ArrayHash TableBreadth-First Search+2 more
Hard
79.3% Accepted
24.2% Freq
Solution
ArrayGraphTopological Sort+1 more
Medium
77.7% Accepted
16.6% Freq
Solution
Depth-First SearchBreadth-First SearchUnion Find+1 more
Medium
65.4% Accepted
13.4% Freq
Solution
ArrayGraphHeap (Priority Queue)+1 more
Hard
51.4% Accepted
Solution
GraphHeap (Priority Queue)Shortest Path
Hard
45.2% Accepted
Solution
ArrayHash TableDepth-First Search+3 more
Medium
53.0% Accepted
Depth-First SearchBreadth-First SearchGraph
Medium
37.0% Accepted
Solution
GraphTopological Sort
Medium
63.2% Accepted
Solution
Union FindGraphHeap (Priority Queue)+1 more
Hard
34.7% Accepted
Solution
Hash TableStringGraph
Hard
65.3% Accepted
Solution
Union FindGraphHeap (Priority Queue)+1 more
1548. The Most Similar Path in a Graph
💰 Premium
Hard
59.3% Accepted
Solution
Dynamic ProgrammingGraph
Hard
63.0% Accepted
Solution
ArrayTwo PointersUnion Find+2 more
Hard
51.6% Accepted
Union FindGraphMinimum Spanning Tree
Hard
41.7% Accepted
ArrayHash TableTwo Pointers+4 more
Medium
40.5% Accepted
Dynamic ProgrammingGraphTopological Sort+2 more
1810. Minimum Path Cost in a Hidden Grid
💰 Premium
Medium
58.4% Accepted
ArrayDepth-First SearchBreadth-First Search+5 more
Medium
51.9% Accepted
ArrayDepth-First SearchGraph+1 more
Hard
49.5% Accepted
MathDynamic ProgrammingTree+3 more
Hard
45.3% Accepted
Solution
Depth-First SearchBreadth-First SearchUnion Find+2 more
Medium
59.9% Accepted
Solution
GraphHeap (Priority Queue)Shortest Path
Hard
42.2% Accepted
ArrayGraphMatrix
Hard
73.2% Accepted
Solution
Depth-First SearchBreadth-First SearchUnion Find+1 more
Hard
50.9% Accepted
Dynamic ProgrammingBit ManipulationGraph+1 more
Medium
69.1% Accepted
Solution
GreedyGraphSorting+1 more
Hard
43.6% Accepted
ArrayDepth-First SearchUnion Find+1 more
2371. Minimize Maximum Value in a Grid
💰 Premium
Hard
70.4% Accepted
Solution
ArrayUnion FindGraph+3 more
2473. Minimum Cost to Buy Apples
💰 Premium
Medium
67.1% Accepted
Solution
ArrayGraphHeap (Priority Queue)+1 more
Hard
50.8% Accepted
TreeDepth-First SearchGraph+1 more
Hard
64.4% Accepted
Solution
GraphDesignHeap (Priority Queue)+1 more
2737. Find the Closest Marked Node
💰 Premium
Medium
65.3% Accepted
Solution
ArrayGraphHeap (Priority Queue)+1 more
Hard
29.8% Accepted
Dynamic ProgrammingGraphMemoization
Hard
49.9% Accepted
Bit ManipulationGraphHeap (Priority Queue)+2 more
Medium
57.4% Accepted
Solution
ArrayStringGraph+1 more
Hard
26.0% Accepted
ArrayStringDynamic Programming+3 more
Medium
56.4% Accepted
Breadth-First SearchGraphPrefix Sum
Hard
22.6% Accepted
GraphPrefix Sum
Hard
26.5% Accepted
Dynamic ProgrammingTreeDepth-First Search+1 more
Hard
26.0% Accepted
ArrayGreedyGraph+1 more
Medium
31.8% Accepted
ArrayBreadth-First SearchGraph+3 more
Medium
50.0% Accepted
Depth-First SearchBreadth-First SearchGraph
Hard
28.8% Accepted
ArrayHash TableGraph+1 more
3383. Minimum Runes to Add to Cast Spell
💰 Premium
Hard
42.7% Accepted
ArrayDepth-First SearchBreadth-First Search+3 more
Medium
47.8% Accepted
ArrayHash TableDepth-First Search+3 more
Hard
29.1% Accepted
ArrayDynamic ProgrammingBit Manipulation+3 more
Medium
18.8% Accepted
Hash TableDynamic ProgrammingGraph
Medium
45.4% Accepted
GraphHeap (Priority Queue)Shortest Path
3656. Determine if a Simple Graph Exists
💰 Premium
Medium
49.5% Accepted
ArrayBinary SearchGraph+2 more
Hard
29.5% Accepted
ArrayBinary SearchDepth-First Search+3 more
Page 1 of 15
Two Pointers (167 questions)
Hard
66.1% Accepted
99.4% Freq
Solution
ArrayTwo PointersDynamic Programming+2 more
Medium
36.7% Accepted
96.3% Freq
Solution
Two PointersStringDynamic Programming
Medium
58.9% Accepted
90.8% Freq
Solution
ArrayTwo PointersGreedy
253. Meeting Rooms II
💰 Premium
Medium
52.4% Accepted
90.1% Freq
Solution
ArrayTwo PointersGreedy+3 more
Medium
82.8% Accepted
89.4% Freq
Hash TableTwo PointersTree+1 more
Medium
59.0% Accepted
80.8% Freq
Solution
Two PointersString
277. Find the Celebrity
💰 Premium
Medium
48.7% Accepted
80.7% Freq
Solution
Two PointersGraphInteractive
Medium
68.5% Accepted
80.6% Freq
Solution
ArrayTwo PointersSorting
Medium
43.9% Accepted
80.5% Freq
Solution
ArrayMathTwo Pointers
1570. Dot Product of Two Sparse Vectors
💰 Premium
Medium
89.9% Accepted
80.3% Freq
Solution
ArrayHash TableTwo Pointers+1 more
Hard
53.8% Accepted
79.4% Freq
Solution
Two PointersDesignSorting+2 more
Medium
56.4% Accepted
77.5% Freq
Solution
ArrayTwo PointersBinary Search+2 more
Medium
34.9% Accepted
76.6% Freq
Solution
MathTwo PointersString
Medium
72.8% Accepted
75.6% Freq
Solution
ArrayTwo PointersLine Sweep
Medium
72.2% Accepted
74.1% Freq
Solution
Two PointersStringDynamic Programming
Medium
79.2% Accepted
73.8% Freq
Solution
ArrayTwo PointersMatrix
Medium
45.7% Accepted
72.8% Freq
Solution
Two PointersString
Medium
49.1% Accepted
72.6% Freq
Solution
ArrayTwo PointersBinary Search+3 more
Medium
54.2% Accepted
72.5% Freq
Solution
Two PointersString
Medium
63.5% Accepted
71.7% Freq
Solution
ArrayTwo PointersBinary Search+1 more
Medium
47.5% Accepted
70.6% Freq
Solution
ArrayTwo PointersSorting
Medium
63.7% Accepted
70.2% Freq
Solution
Linked ListTwo PointersStack+1 more
Medium
60.9% Accepted
70.2% Freq
Solution
ArrayTwo PointersGreedy+1 more
Medium
56.1% Accepted
69.7% Freq
Solution
ArrayTwo PointersBinary Search+2 more
Medium
63.1% Accepted
69.4% Freq
Solution
Linked ListTwo PointersDivide and Conquer+2 more
Hard
22.5% Accepted
69.3% Freq
ArrayTwo PointersBinary Search+4 more
1229. Meeting Scheduler
💰 Premium
Medium
55.2% Accepted
69.2% Freq
Solution
ArrayTwo PointersSorting
Medium
39.8% Accepted
68.9% Freq
Two PointersStringBinary Search+3 more
Medium
50.2% Accepted
68.8% Freq
Solution
Linked ListTwo Pointers
Medium
47.9% Accepted
67.3% Freq
Solution
Hash TableTwo PointersString+1 more
Medium
29.2% Accepted
67.1% Freq
ArrayTwo PointersBinary Search+1 more
Medium
55.8% Accepted
66.7% Freq
Solution
ArrayTwo PointersStack+1 more
Medium
40.8% Accepted
66.4% Freq
ArrayTwo PointersBinary Search+1 more
244. Shortest Word Distance II
💰 Premium
Medium
62.4% Accepted
66.3% Freq
Solution
ArrayHash TableTwo Pointers+2 more
Medium
51.4% Accepted
65.7% Freq
Solution
ArrayTwo PointersBinary Search+2 more
Medium
32.1% Accepted
64.6% Freq
ArrayMathTwo Pointers+1 more
Medium
64.1% Accepted
64.3% Freq
Solution
ArrayTwo PointersBinary Search
Medium
49.4% Accepted
64.1% Freq
Solution
ArrayTwo PointersBinary Search+1 more
Medium
62.5% Accepted
64.0% Freq
Solution
ArrayHash TableTwo Pointers+3 more
Medium
84.5% Accepted
64.0% Freq
Solution
ArrayTwo PointersSimulation
Medium
78.1% Accepted
63.4% Freq
Solution
Two PointersStringStack+1 more
Medium
40.7% Accepted
63.1% Freq
Solution
Linked ListTwo Pointers
Medium
63.7% Accepted
62.8% Freq
Solution
ArrayTwo Pointers
Medium
45.0% Accepted
62.6% Freq
Solution
ArrayHash TableTwo Pointers+4 more
Medium
49.2% Accepted
61.0% Freq
Solution
ArrayTwo PointersBinary Search+1 more
Medium
40.9% Accepted
60.9% Freq
Solution
Two PointersStringEnumeration
Medium
68.9% Accepted
59.4% Freq
ArrayTwo PointersGreedy
Medium
81.7% Accepted
58.0% Freq
Solution
Hash TableTwo PointersString+1 more
Hard
34.7% Accepted
57.2% Freq
Two PointersString
Medium
59.9% Accepted
57.2% Freq
Solution
Linked ListTwo Pointers
Hard
33.6% Accepted
57.2% Freq
ArrayTwo PointersStack+2 more
1885. Count Pairs in Two Arrays
💰 Premium
Medium
60.3% Accepted
57.1% Freq
Solution
ArrayTwo PointersBinary Search+1 more
Medium
41.4% Accepted
56.5% Freq
Solution
ArrayTwo PointersDynamic Programming+1 more
Medium
36.6% Accepted
56.4% Freq
Solution
MathTwo PointersBinary Search
Hard
52.4% Accepted
56.1% Freq
Two PointersStringGreedy+1 more
Medium
89.8% Accepted
56.0% Freq
Solution
ArrayTwo PointersSimulation
Medium
68.9% Accepted
55.5% Freq
Solution
ArrayHash TableTwo Pointers+1 more
Medium
30.6% Accepted
55.2% Freq
ArrayTwo Pointers
Medium
45.2% Accepted
55.0% Freq
Solution
ArrayHash TableTwo Pointers+2 more
Medium
75.1% Accepted
55.0% Freq
Solution
ArrayTwo PointersGreedy+1 more
Medium
56.8% Accepted
54.8% Freq
Solution
Two PointersString
Medium
37.7% Accepted
54.8% Freq
Solution
ArrayTwo PointersStack+3 more
Medium
60.6% Accepted
54.4% Freq
ArrayTwo PointersGreedy+1 more
Hard
24.1% Accepted
54.4% Freq
ArrayTwo PointersBinary Search+5 more
251. Flatten 2D Vector
💰 Premium
Medium
50.3% Accepted
54.3% Freq
Solution
ArrayTwo PointersDesign+1 more
Medium
49.5% Accepted
54.0% Freq
Solution
ArrayTwo PointersBinary Search+1 more
272. Closest Binary Search Tree Value II
💰 Premium
Hard
60.8% Accepted
53.9% Freq
Solution
Two PointersStackTree+4 more
Medium
52.2% Accepted
53.9% Freq
Solution
ArrayTwo PointersString+1 more
Medium
59.5% Accepted
53.9% Freq
ArrayTwo Pointers
Medium
56.7% Accepted
53.4% Freq
Solution
ArrayHash TableTwo Pointers+1 more
Medium
63.0% Accepted
52.8% Freq
Solution
Two PointersStringDynamic Programming
Hard
40.5% Accepted
50.9% Freq
ArrayTwo PointersDynamic Programming+1 more
Medium
25.1% Accepted
50.9% Freq
ArrayTwo PointersMatrix
Medium
37.7% Accepted
50.6% Freq
Solution
Two PointersString
Medium
43.8% Accepted
50.3% Freq
ArrayHash TableTwo Pointers+2 more
Medium
71.5% Accepted
50.3% Freq
Solution
ArrayTwo PointersGreedy+1 more
Medium
56.4% Accepted
49.2% Freq
Solution
Hash TableLinked ListTwo Pointers
360. Sort Transformed Array
💰 Premium
Medium
57.5% Accepted
48.6% Freq
Solution
ArrayMathTwo Pointers+1 more
Medium
54.4% Accepted
48.4% Freq
Solution
ArrayTwo Pointers
Hard
42.5% Accepted
48.1% Freq
Two PointersStringDynamic Programming+1 more
Medium
46.0% Accepted
47.5% Freq
Solution
ArrayHash TableTwo Pointers+2 more
Medium
46.4% Accepted
47.1% Freq
ArrayTwo PointersString+1 more
Hard
46.1% Accepted
46.4% Freq
Solution
ArrayTwo PointersBinary Search+1 more
Medium
50.8% Accepted
46.4% Freq
Solution
Linked ListTwo Pointers
Hard
50.3% Accepted
46.2% Freq
Solution
ArrayTwo PointersBinary Search+4 more
Medium
52.8% Accepted
46.1% Freq
Solution
ArrayTwo PointersBinary Search+1 more
Medium
53.9% Accepted
45.5% Freq
Solution
ArrayTwo PointersGreedy+1 more
Medium
64.5% Accepted
44.5% Freq
ArrayTwo PointersString+2 more
Hard
59.0% Accepted
43.6% Freq
Two PointersStringDynamic Programming+3 more
Medium
36.3% Accepted
43.2% Freq
ArrayHash TableTwo Pointers
Medium
46.6% Accepted
41.4% Freq
Solution
ArrayTwo PointersString
Medium
38.7% Accepted
41.3% Freq
ArrayHash TableTwo Pointers+2 more
Hard
59.4% Accepted
41.1% Freq
Solution
ArrayTwo PointersBreadth-First Search+4 more
Medium
63.6% Accepted
40.8% Freq
Solution
ArrayTwo PointersGreedy+3 more
1055. Shortest Way to Form String
💰 Premium
Medium
61.4% Accepted
40.5% Freq
Solution
Two PointersStringBinary Search+1 more
Medium
68.9% Accepted
40.3% Freq
Solution
Linked ListTwo Pointers
Medium
59.5% Accepted
39.5% Freq
Solution
Linked ListTwo Pointers
Medium
33.8% Accepted
39.0% Freq
ArrayTwo PointersBinary Search+1 more
Hard
40.8% Accepted
38.5% Freq
ArrayHash TableTwo Pointers+2 more
Hard
42.5% Accepted
35.5% Freq
ArrayTwo PointersDynamic Programming+3 more
Medium
81.6% Accepted
35.0% Freq
Solution
ArrayTwo PointersGreedy+1 more
Medium
63.1% Accepted
34.0% Freq
Solution
ArrayTwo PointersBinary Search+2 more
Hard
64.3% Accepted
32.9% Freq
Solution
ArrayTwo PointersBinary Search+2 more
Medium
81.6% Accepted
32.1% Freq
Solution
Linked ListTwo PointersStack
Medium
65.6% Accepted
32.1% Freq
Solution
Two PointersString
Medium
17.0% Accepted
32.1% Freq
ArrayTwo PointersDynamic Programming+1 more
Medium
43.4% Accepted
31.8% Freq
Solution
ArrayTwo PointersHeap (Priority Queue)+1 more
Medium
48.5% Accepted
31.7% Freq
Solution
ArrayTwo PointersString
Medium
56.0% Accepted
31.0% Freq
Solution
Two PointersString
Medium
68.8% Accepted
30.5% Freq
Solution
ArrayTwo PointersBinary Search+2 more
186. Reverse Words in a String II
💰 Premium
Medium
56.4% Accepted
29.4% Freq
Solution
Two PointersString
Medium
34.1% Accepted
29.1% Freq
ArrayTwo PointersBinary Search+2 more
Medium
52.7% Accepted
26.8% Freq
Two PointersStringGreedy
Hard
27.2% Accepted
26.2% Freq
Two PointersStringBinary Search+3 more
259. 3Sum Smaller
💰 Premium
Medium
51.1% Accepted
25.8% Freq
Solution
ArrayTwo PointersBinary Search+1 more
Medium
71.7% Accepted
19.5% Freq
Solution
ArrayTwo PointersString+1 more
Medium
34.3% Accepted
18.3% Freq
ArrayTwo PointersGreedy+2 more
Medium
89.7% Accepted
13.9% Freq
MathTwo PointersBrainteaser
Medium
69.7% Accepted
MathTwo PointersBinary Search+1 more
Medium
94.1% Accepted
Solution
Linked ListTwo PointersStack+1 more
Medium
62.3% Accepted
ArrayTwo PointersSorting
Medium
42.6% Accepted
ArrayHash TableMath+1 more
Medium
31.9% Accepted
Two PointersString
Medium
60.9% Accepted
Solution
Linked ListMathTwo Pointers
Hard
63.0% Accepted
Solution
ArrayTwo PointersUnion Find+2 more
Medium
54.4% Accepted
ArrayTwo PointersGreedy+1 more
Hard
41.7% Accepted
ArrayHash TableTwo Pointers+4 more
Medium
71.7% Accepted
Two PointersStringGreedy
Medium
54.1% Accepted
Solution
ArrayTwo PointersBinary Search
Medium
67.0% Accepted
Linked ListTwo PointersSorting
Hard
30.0% Accepted
ArrayTwo PointersBinary Search+4 more
Medium
72.9% Accepted
Solution
Two PointersStringGreedy
Hard
32.8% Accepted
Two PointersStringBinary Search
Medium
40.7% Accepted
ArrayTwo PointersBinary Search+2 more
2604. Minimum Time to Eat All Grains
💰 Premium
Hard
40.0% Accepted
ArrayTwo PointersBinary Search+1 more
2838. Maximum Coins Heroes Can Collect
💰 Premium
Medium
68.6% Accepted
Solution
ArrayTwo PointersBinary Search+2 more
Medium
26.2% Accepted
ArrayHash TableTwo Pointers+3 more
Medium
32.3% Accepted
ArrayTwo Pointers
Hard
35.5% Accepted
Two PointersStringDynamic Programming
Medium
64.0% Accepted
Solution
Two PointersStringGreedy
Hard
39.6% Accepted
ArrayTwo PointersBinary Search
Medium
32.5% Accepted
ArrayTwo PointersSorting+1 more
Medium
74.6% Accepted
ArrayTwo PointersMatrix
3284. Sum of Consecutive Subarrays
💰 Premium
Medium
42.2% Accepted
ArrayTwo PointersDynamic Programming
Medium
21.0% Accepted
Two PointersStringDynamic Programming+1 more
Medium
84.5% Accepted
ArrayTwo PointersSimulation
Hard
49.0% Accepted
Two PointersString
Hard
22.6% Accepted
Two PointersStringBinary Search+1 more
Medium
67.8% Accepted
Two PointersString
Medium
43.4% Accepted
Two PointersStringDynamic Programming+1 more
Hard
16.3% Accepted
Two PointersStringDynamic Programming
Medium
62.2% Accepted
ArrayTwo PointersStack+3 more
Medium
54.7% Accepted
Two PointersBinary SearchEnumeration
3730. Maximum Calories Burnt from Jumps
💰 Premium
Medium
75.2% Accepted
ArrayTwo PointersGreedy+1 more
Page 1 of 14
Stack (151 questions)
Hard
66.1% Accepted
99.4% Freq
Solution
ArrayTwo PointersDynamic Programming+2 more
Medium
71.1% Accepted
95.7% Freq
Solution
StringStack
Medium
46.3% Accepted
90.7% Freq
Solution
MathStringStack
1762. Buildings With an Ocean View
💰 Premium
Medium
80.9% Accepted
87.8% Freq
Solution
ArrayStackMonotonic Stack
Medium
66.5% Accepted
84.6% Freq
Solution
StringStackGreedy
Medium
61.8% Accepted
83.7% Freq
Solution
StringStackRecursion
Medium
65.4% Accepted
82.8% Freq
Solution
ArrayStack
Hard
48.6% Accepted
80.9% Freq
Solution
ArrayStackMonotonic Stack
Hard
46.2% Accepted
80.2% Freq
Solution
MathStringStack+1 more
Hard
71.9% Accepted
79.6% Freq
ArrayStackMonotonic Stack
Medium
38.0% Accepted
79.2% Freq
Solution
ArrayDynamic ProgrammingStack+1 more
Medium
35.9% Accepted
76.5% Freq
Solution
StringStackGreedy+1 more
Hard
55.2% Accepted
76.3% Freq
Solution
ArrayDynamic ProgrammingStack+2 more
Medium
71.0% Accepted
75.5% Freq
Solution
ArrayDynamic ProgrammingStack+2 more
Medium
46.2% Accepted
75.4% Freq
Solution
ArrayStackSimulation
Medium
74.5% Accepted
74.7% Freq
Solution
StringStackGreedy
Medium
67.8% Accepted
74.2% Freq
Solution
ArrayStackMonotonic Stack
Medium
67.4% Accepted
73.4% Freq
Solution
ArrayStackMonotonic Stack
Hard
37.3% Accepted
72.6% Freq
Solution
StringDynamic ProgrammingStack
Medium
51.0% Accepted
72.5% Freq
Solution
Hash TableStringStack+2 more
Medium
60.4% Accepted
72.4% Freq
Solution
StringStack
Medium
63.7% Accepted
70.2% Freq
Solution
Linked ListTwo PointersStack+1 more
Medium
39.5% Accepted
69.6% Freq
Solution
StringDynamic ProgrammingStack+1 more
Medium
52.1% Accepted
69.0% Freq
Solution
StringStackGreedy+1 more
364. Nested List Weight Sum II
💰 Premium
Medium
66.1% Accepted
68.6% Freq
Solution
StackDepth-First SearchBreadth-First Search
Hard
69.8% Accepted
68.4% Freq
Solution
StringStackRecursion
536. Construct Binary Tree from String
💰 Premium
Medium
58.6% Accepted
67.8% Freq
Solution
StringStackTree+2 more
Hard
65.0% Accepted
67.4% Freq
Solution
Hash TableStringStack+1 more
Medium
68.2% Accepted
66.9% Freq
Solution
StackDesignMonotonic Stack+1 more
Medium
55.8% Accepted
66.7% Freq
Solution
ArrayTwo PointersStack+1 more
Medium
62.5% Accepted
66.0% Freq
Solution
Hash TableStringStack+1 more
Hard
48.7% Accepted
66.0% Freq
Linked ListStringStack+3 more
Medium
51.4% Accepted
65.7% Freq
Solution
ArrayTwo PointersBinary Search+2 more
Hard
22.1% Accepted
65.5% Freq
ArrayStackSegment Tree+4 more
Medium
65.4% Accepted
64.6% Freq
Solution
StackTreeDepth-First Search+3 more
Hard
53.2% Accepted
64.3% Freq
Solution
Hash TableStringStack+1 more
Hard
30.7% Accepted
64.1% Freq
StringDynamic ProgrammingStack+2 more
Hard
57.5% Accepted
64.1% Freq
Solution
ArrayMathStack+1 more
Medium
65.6% Accepted
63.5% Freq
Solution
Linked ListStackTree+4 more
Medium
78.1% Accepted
63.4% Freq
Solution
Two PointersStringStack+1 more
Medium
56.0% Accepted
62.6% Freq
Solution
ArrayMathStack
Medium
34.3% Accepted
62.2% Freq
Solution
ArrayBinary SearchStack+2 more
Medium
71.7% Accepted
62.0% Freq
StringStack
Medium
75.7% Accepted
60.8% Freq
Solution
StackTreeDesign+3 more
Medium
60.3% Accepted
60.0% Freq
Solution
ArrayStackMonotonic Stack
Medium
45.0% Accepted
60.0% Freq
Solution
StringStackGreedy
Medium
64.1% Accepted
60.0% Freq
Solution
ArrayStackGreedy+2 more
Medium
78.0% Accepted
59.2% Freq
Solution
ArrayLinked ListStack+3 more
Hard
66.5% Accepted
58.0% Freq
Solution
Hash TableStackDesign+1 more
Hard
33.6% Accepted
57.2% Freq
ArrayTwo PointersStack+2 more
Hard
49.5% Accepted
55.8% Freq
Solution
Hash TableMathString+2 more
Medium
69.6% Accepted
55.3% Freq
Solution
Linked ListStackTree+2 more
Medium
37.7% Accepted
54.8% Freq
Solution
ArrayTwo PointersStack+3 more
Medium
62.1% Accepted
54.6% Freq
Solution
Linked ListMathStack
272. Closest Binary Search Tree Value II
💰 Premium
Hard
60.8% Accepted
53.9% Freq
Solution
Two PointersStackTree+4 more
Medium
62.6% Accepted
53.8% Freq
StringStackGreedy+1 more
Hard
17.5% Accepted
53.8% Freq
ArrayBinary SearchDynamic Programming+4 more
Medium
25.5% Accepted
52.8% Freq
ArrayHash TableStack+2 more
Medium
83.8% Accepted
52.5% Freq
Solution
ArrayStackTree+3 more
Medium
78.3% Accepted
51.8% Freq
Solution
StringStackSimulation
Hard
54.5% Accepted
50.5% Freq
Solution
ArrayStackGreedy+2 more
Medium
54.2% Accepted
50.4% Freq
Solution
ArrayStackSorting+1 more
Medium
65.6% Accepted
50.1% Freq
Solution
StringDynamic ProgrammingStack
Medium
80.0% Accepted
47.7% Freq
Solution
ArrayStackDesign
Hard
56.1% Accepted
47.4% Freq
Solution
ArrayStackSorting+1 more
1087. Brace Expansion
💰 Premium
Medium
66.8% Accepted
45.9% Freq
Solution
StringBacktrackingStack+2 more
Medium
36.8% Accepted
45.5% Freq
Solution
StringStack
Medium
82.4% Accepted
45.0% Freq
ArrayMathStack+3 more
Medium
56.0% Accepted
44.9% Freq
StringStackSimulation
439. Ternary Expression Parser
💰 Premium
Medium
62.3% Accepted
43.6% Freq
Solution
StringStackRecursion
Medium
42.7% Accepted
43.5% Freq
ArrayStackMonotonic Stack
Medium
51.5% Accepted
42.5% Freq
Solution
ArrayStackTree+4 more
Medium
71.8% Accepted
40.9% Freq
Solution
StringStack
Hard
40.9% Accepted
40.3% Freq
Solution
ArrayDynamic ProgrammingStack+3 more
Hard
28.8% Accepted
40.3% Freq
Solution
ArrayStackMonotonic Stack+1 more
Medium
44.3% Accepted
39.8% Freq
Solution
ArrayStackGreedy+2 more
Hard
23.0% Accepted
39.4% Freq
ArrayMathStack+1 more
Medium
78.6% Accepted
39.2% Freq
Solution
StringStackSimulation
Hard
62.0% Accepted
38.5% Freq
Solution
StringStackGreedy+1 more
Hard
32.0% Accepted
38.5% Freq
ArrayBinary SearchStack+1 more
Medium
48.8% Accepted
37.7% Freq
StringStackDepth-First Search
Hard
40.9% Accepted
35.3% Freq
ArrayBinary SearchStack+3 more
Hard
64.3% Accepted
32.9% Freq
Solution
ArrayTwo PointersBinary Search+2 more
Medium
81.6% Accepted
32.1% Freq
Solution
Linked ListTwo PointersStack
Medium
36.5% Accepted
31.9% Freq
ArrayHash TableStack+2 more
Medium
52.3% Accepted
31.7% Freq
Solution
ArrayStackGreedy+1 more
Medium
69.9% Accepted
30.5% Freq
Solution
ArrayStackSimulation
Hard
52.2% Accepted
30.5% Freq
Solution
ArrayBinary SearchStack+4 more
Medium
63.2% Accepted
30.4% Freq
Solution
ArrayLinked ListStack+1 more
Medium
44.8% Accepted
29.4% Freq
StringStackSimulation
Medium
67.7% Accepted
28.9% Freq
ArrayDynamic ProgrammingStack+2 more
Medium
50.6% Accepted
28.8% Freq
StringDynamic ProgrammingStack+1 more
Medium
80.4% Accepted
28.7% Freq
Solution
ArrayStackSimulation
Medium
31.8% Accepted
28.6% Freq
StringStackSimulation
Medium
35.6% Accepted
25.8% Freq
ArrayStackMonotonic Stack
Medium
61.2% Accepted
25.6% Freq
Solution
Linked ListMathStack
Medium
39.5% Accepted
25.1% Freq
ArrayStackMonotonic Stack+1 more
Medium
85.7% Accepted
23.2% Freq
Solution
StringBacktrackingStack+1 more
Medium
23.6% Accepted
22.9% Freq
ArrayLinked ListStack+1 more
Hard
40.8% Accepted
21.9% Freq
ArrayDynamic ProgrammingStack+2 more
Medium
57.9% Accepted
17.6% Freq
ArrayDynamic ProgrammingStack+2 more
Medium
74.7% Accepted
13.1% Freq
Solution
Linked ListStackRecursion+1 more
Hard
78.1% Accepted
13.0% Freq
Solution
ArrayDynamic ProgrammingStack+2 more
Medium
86.2% Accepted
11.9% Freq
Solution
ArrayDivide and ConquerStack+3 more
Medium
46.6% Accepted
Solution
StringStackTree+1 more
Medium
60.7% Accepted
StringStack
Medium
94.1% Accepted
Solution
Linked ListTwo PointersStack+1 more
Medium
53.4% Accepted
StringStackGreedy
1586. Binary Search Tree Iterator II
💰 Premium
Medium
63.3% Accepted
Solution
StackTreeDesign+3 more
Hard
62.6% Accepted
StringStackTree+1 more
Hard
51.2% Accepted
MathStringDynamic Programming+1 more
Medium
48.1% Accepted
ArrayStackMonotonic Stack
Hard
33.6% Accepted
ArrayHash TableMath+4 more
Hard
39.3% Accepted
StringStackGreedy+1 more
Medium
49.5% Accepted
ArrayStackGreedy
Medium
47.5% Accepted
ArrayStackMatrix+1 more
Hard
45.0% Accepted
ArrayStackUnion Find+1 more
Medium
36.6% Accepted
ArrayStackSorting+1 more
Hard
39.4% Accepted
Solution
ArrayDynamic ProgrammingStack+1 more
Hard
35.5% Accepted
ArrayHash TableMath+2 more
Hard
38.8% Accepted
ArrayBinary SearchStack+2 more
Hard
23.2% Accepted
ArrayDynamic ProgrammingStack+5 more
Medium
66.6% Accepted
StackTreeDepth-First Search+1 more
Hard
28.3% Accepted
ArrayHash TableStack+3 more
Hard
53.9% Accepted
Solution
ArrayMathStack+4 more
Medium
75.4% Accepted
Solution
ArrayStackMonotonic Stack
Medium
70.1% Accepted
ArrayStackSorting+1 more
3205. Maximum Array Hopping Score I
💰 Premium
Medium
77.4% Accepted
ArrayDynamic ProgrammingStack+2 more
Hard
50.3% Accepted
ArrayStackMatrix+1 more
Medium
34.8% Accepted
Hash TableStringStack+1 more
Medium
62.2% Accepted
ArrayTwo PointersStack+3 more
Page 1 of 13
Sliding Window (139 questions)
Medium
37.8% Accepted
96.9% Freq
Solution
Hash TableStringSliding Window
Hard
48.1% Accepted
85.4% Freq
Solution
ArrayQueueSliding Window+2 more
Medium
44.4% Accepted
85.3% Freq
Solution
ArrayBinary SearchGreedy+3 more
Hard
46.3% Accepted
83.0% Freq
Solution
Hash TableStringSliding Window
Medium
53.9% Accepted
82.2% Freq
Solution
ArrayGreedySliding Window
Medium
66.8% Accepted
81.4% Freq
Solution
ArrayBinary SearchSliding Window+1 more
Medium
58.3% Accepted
81.0% Freq
Solution
Hash TableStringSliding Window
Hard
38.8% Accepted
80.6% Freq
Solution
ArrayHash TableSliding Window+1 more
Medium
64.0% Accepted
80.2% Freq
Solution
ArrayHash TableSliding Window
Medium
52.0% Accepted
79.7% Freq
Solution
MathDynamic ProgrammingSliding Window+1 more
Medium
35.1% Accepted
78.6% Freq
ArrayHash TableSliding Window+1 more
Medium
49.8% Accepted
77.7% Freq
Solution
ArrayHash TableSliding Window
Medium
62.1% Accepted
77.2% Freq
Solution
ArrayBinary SearchBit Manipulation+1 more
Medium
52.8% Accepted
75.2% Freq
Solution
Hash TableStringSliding Window
Hard
30.9% Accepted
75.2% Freq
Solution
StringBinary SearchSliding Window+3 more
Medium
57.0% Accepted
74.8% Freq
Solution
ArrayQueueSliding Window+3 more
Hard
48.8% Accepted
74.2% Freq
Solution
StringSliding WindowEnumeration+1 more
Hard
29.3% Accepted
74.0% Freq
ArrayHash TableBinary Search+1 more
Hard
61.0% Accepted
72.9% Freq
Solution
ArrayBinary SearchSliding Window+1 more
Medium
49.1% Accepted
72.6% Freq
Solution
ArrayTwo PointersBinary Search+3 more
Hard
67.0% Accepted
71.8% Freq
Solution
ArrayHash TableSliding Window+1 more
Medium
65.9% Accepted
68.0% Freq
Solution
ArrayHash TableSliding Window
Medium
53.4% Accepted
67.3% Freq
Solution
ArrayBinary SearchSliding Window+1 more
Medium
47.9% Accepted
67.3% Freq
Solution
Hash TableTwo PointersString+1 more
Medium
70.9% Accepted
66.4% Freq
Solution
ArrayDynamic ProgrammingSliding Window
Medium
49.7% Accepted
66.4% Freq
Solution
Hash TableStringSliding Window
Hard
22.1% Accepted
65.5% Freq
ArrayStackSegment Tree+4 more
Hard
37.8% Accepted
65.1% Freq
ArrayMathGeometry+2 more
Medium
50.2% Accepted
63.3% Freq
Solution
ArrayBinary SearchSliding Window+1 more
Hard
69.9% Accepted
62.8% Freq
Solution
ArrayHash TableGreedy+3 more
Medium
67.4% Accepted
62.7% Freq
Solution
ArrayHash TableSliding Window+1 more
Hard
33.5% Accepted
62.5% Freq
Solution
Hash TableStringSliding Window
Medium
52.2% Accepted
62.0% Freq
Solution
Hash TableStringBit Manipulation+3 more
Medium
37.0% Accepted
61.7% Freq
ArrayDynamic ProgrammingQueue+3 more
Hard
59.6% Accepted
60.5% Freq
Solution
ArrayDynamic ProgrammingSliding Window+1 more
Medium
45.7% Accepted
60.1% Freq
Solution
Hash TableStringDivide and Conquer+1 more
Medium
56.7% Accepted
59.8% Freq
Solution
ArraySliding WindowPrefix Sum
727. Minimum Window Subsequence
💰 Premium
Hard
43.7% Accepted
59.5% Freq
Solution
StringDynamic ProgrammingSliding Window
Medium
63.9% Accepted
58.4% Freq
Solution
ArraySliding Window
Medium
53.9% Accepted
57.8% Freq
Hash TableStringSliding Window
Hard
69.3% Accepted
57.3% Freq
Solution
ArrayQueueSliding Window+1 more
Medium
65.6% Accepted
56.8% Freq
Solution
ArraySliding Window
Medium
39.9% Accepted
56.1% Freq
Solution
ArrayBinary SearchSliding Window+2 more
Medium
37.0% Accepted
56.1% Freq
ArrayHash TableBinary Search+1 more
Hard
62.2% Accepted
55.3% Freq
Solution
ArrayBit ManipulationQueue+2 more
Medium
17.7% Accepted
54.8% Freq
StringSliding WindowEnumeration
Medium
74.3% Accepted
54.7% Freq
Solution
ArrayHash TableMath+2 more
Medium
73.3% Accepted
54.6% Freq
Solution
Hash TableStringSliding Window
Medium
58.0% Accepted
54.4% Freq
Solution
ArrayQueueSliding Window+3 more
Medium
42.7% Accepted
54.2% Freq
Solution
ArrayHash TableSliding Window
Medium
51.1% Accepted
53.6% Freq
StringSliding Window
Hard
32.4% Accepted
53.0% Freq
Solution
ArrayBinary SearchQueue+4 more
Medium
20.2% Accepted
52.7% Freq
ArrayMathQueue+3 more
Medium
51.2% Accepted
52.4% Freq
Solution
ArrayBinary SearchDynamic Programming+3 more
Hard
24.1% Accepted
51.7% Freq
Solution
ArraySliding WindowSorting+2 more
Medium
40.1% Accepted
51.6% Freq
StringSliding Window
Medium
75.9% Accepted
50.9% Freq
Solution
ArrayHash TableSliding Window
Medium
64.8% Accepted
50.1% Freq
Solution
ArrayBit ManipulationSliding Window
Medium
76.1% Accepted
49.8% Freq
Solution
Hash TableStringSliding Window
Medium
40.3% Accepted
49.4% Freq
Solution
ArrayHash TableBinary Search+2 more
Hard
54.0% Accepted
49.1% Freq
Solution
ArrayBinary SearchSliding Window+2 more
Hard
62.3% Accepted
48.6% Freq
Solution
ArrayBinary SearchSliding Window+1 more
Medium
69.3% Accepted
47.0% Freq
Solution
StringBinary SearchSliding Window+1 more
Medium
53.2% Accepted
46.6% Freq
ArrayHash TableSliding Window
Hard
52.2% Accepted
46.2% Freq
Solution
ArrayHash TableBinary Search+1 more
Medium
40.4% Accepted
43.6% Freq
StringSliding Window
Hard
37.7% Accepted
43.6% Freq
ArrayBinary SearchSliding Window+2 more
Medium
64.8% Accepted
43.6% Freq
Solution
ArrayDynamic ProgrammingSliding Window
Medium
43.9% Accepted
43.0% Freq
Hash TableStringSliding Window
Medium
71.1% Accepted
42.5% Freq
ArraySliding Window
Hard
25.5% Accepted
42.4% Freq
StringSliding WindowRolling Hash+1 more
Medium
23.9% Accepted
41.3% Freq
ArrayBinary SearchGreedy+3 more
Medium
59.3% Accepted
40.9% Freq
Solution
StringBinary SearchSliding Window+1 more
Medium
56.8% Accepted
40.5% Freq
Solution
Hash TableStringSliding Window
Hard
42.2% Accepted
38.5% Freq
ArrayGreedySliding Window+1 more
Medium
45.9% Accepted
37.4% Freq
Solution
ArraySliding Window
Medium
61.1% Accepted
36.6% Freq
Solution
StringSliding Window
Hard
38.0% Accepted
36.4% Freq
ArrayHash TableString+1 more
Medium
35.2% Accepted
35.3% Freq
ArrayHash TableSliding Window
Medium
48.5% Accepted
34.3% Freq
Solution
ArrayDynamic ProgrammingSliding Window
Medium
60.6% Accepted
34.3% Freq
ArrayDynamic ProgrammingSliding Window
Medium
58.2% Accepted
32.7% Freq
Solution
ArrayBinary SearchSliding Window+1 more
Medium
58.2% Accepted
29.4% Freq
Hash TableStringBit Manipulation+1 more
Medium
52.9% Accepted
29.4% Freq
Hash TableStringSliding Window+1 more
Medium
43.9% Accepted
29.1% Freq
ArraySliding WindowPrefix Sum
Medium
40.8% Accepted
28.5% Freq
StringDynamic ProgrammingSliding Window
Medium
31.6% Accepted
27.3% Freq
ArrayHash TableSliding Window+1 more
Medium
62.4% Accepted
26.0% Freq
Solution
ArraySliding Window
Medium
59.8% Accepted
25.8% Freq
Solution
ArraySliding Window
Hard
56.3% Accepted
24.8% Freq
Solution
ArrayDynamic ProgrammingQueue+3 more
487. Max Consecutive Ones II
💰 Premium
Medium
51.8% Accepted
23.4% Freq
Solution
ArrayDynamic ProgrammingSliding Window
Medium
80.5% Accepted
22.7% Freq
Solution
ArrayBit ManipulationQueue+2 more
Medium
26.0% Accepted
16.8% Freq
StringDynamic ProgrammingSliding Window+1 more
Medium
56.1% Accepted
16.0% Freq
Solution
ArrayHash TableSliding Window
683. K Empty Slots
💰 Premium
Hard
37.9% Accepted
Solution
ArrayBinary Indexed TreeSegment Tree+5 more
Medium
58.2% Accepted
ArrayMathSliding Window+1 more
Medium
76.4% Accepted
Solution
Hash TableStringSliding Window
Medium
61.1% Accepted
Solution
ArraySliding Window
Medium
36.6% Accepted
ArrayHash TableBinary Search+2 more
1852. Distinct Numbers in Each Subarray
💰 Premium
Medium
77.1% Accepted
Solution
ArrayHash TableSliding Window
2067. Number of Equal Count Substrings
💰 Premium
Medium
44.9% Accepted
Hash TableStringSliding Window+1 more
Medium
60.4% Accepted
Solution
ArrayHash TableSliding Window
Medium
35.3% Accepted
ArrayBinary SearchGreedy+3 more
Hard
37.5% Accepted
ArrayBinary SearchQueue+4 more
Medium
51.6% Accepted
Solution
Hash TableStringSliding Window
Hard
35.5% Accepted
ArrayHash TableMath+2 more
Hard
34.0% Accepted
ArrayBinary SearchGreedy+3 more
Medium
36.4% Accepted
ArrayBinary SearchSliding Window
Medium
38.0% Accepted
StringSliding Window
Medium
40.1% Accepted
ArrayHash TableSliding Window
Hard
21.3% Accepted
ArrayHash TableDynamic Programming+1 more
Hard
31.6% Accepted
ArrayHash TableBit Manipulation+2 more
Hard
29.3% Accepted
Hash TableStringSliding Window
Medium
61.9% Accepted
Solution
Hash TableStringBinary Search+2 more
Medium
38.8% Accepted
Solution
Hash TableStringBinary Search+2 more
Hard
31.0% Accepted
ArrayHash TableSliding Window+1 more
3023. Find Pattern in Infinite Stream I
💰 Premium
Medium
56.8% Accepted
ArraySliding WindowRolling Hash+2 more
3037. Find Pattern in Infinite Stream II
💰 Premium
Hard
66.9% Accepted
ArraySliding WindowRolling Hash+2 more
Hard
20.7% Accepted
ArrayGreedySliding Window+1 more
Medium
50.2% Accepted
Solution
ArrayBit ManipulationSliding Window
Medium
55.6% Accepted
StringBinary SearchDynamic Programming+2 more
Medium
62.3% Accepted
Solution
ArraySliding Window
Medium
30.9% Accepted
ArraySliding Window
Hard
22.4% Accepted
ArrayStringBinary Search+2 more
Medium
42.1% Accepted
Hash TableStringSliding Window
Hard
55.6% Accepted
Hash TableStringSliding Window
Medium
41.5% Accepted
Hash TableStringSliding Window
Medium
40.6% Accepted
Solution
Hash TableStringSliding Window
Hard
16.7% Accepted
ArrayHash TableSliding Window+1 more
Medium
50.3% Accepted
ArrayBinary SearchSliding Window+1 more
Medium
55.1% Accepted
Hash TableStringSliding Window
Hard
70.1% Accepted
Hash TableStringSliding Window
Medium
46.6% Accepted
ArrayHash TableMath+2 more
Hard
26.5% Accepted
ArrayHash TableMath+3 more
Medium
38.0% Accepted
ArraySliding WindowSorting
3672. Sum of Weighted Modes in Subarrays
💰 Premium
Medium
55.2% Accepted
ArrayHash TableSliding Window+2 more
Medium
34.1% Accepted
ArrayHash TableSliding Window+2 more
Page 1 of 12
Binary Tree (139 questions)
Medium
57.6% Accepted
93.0% Freq
Solution
Hash TableTreeDepth-First Search+3 more
Medium
82.8% Accepted
89.4% Freq
Hash TableTwo PointersTree+1 more
Medium
68.0% Accepted
84.8% Freq
Solution
TreeDepth-First SearchBinary Tree
Medium
68.6% Accepted
78.7% Freq
Solution
TreeDepth-First SearchBreadth-First Search+1 more
Hard
52.6% Accepted
77.4% Freq
Solution
Hash TableTreeDepth-First Search+3 more
Hard
59.8% Accepted
76.9% Freq
Solution
StringTreeDepth-First Search+3 more
Hard
47.5% Accepted
76.3% Freq
Solution
Dynamic ProgrammingTreeDepth-First Search+1 more
Hard
41.7% Accepted
75.2% Freq
Solution
Dynamic ProgrammingTreeDepth-First Search+1 more
Medium
69.2% Accepted
74.3% Freq
Solution
TreeDepth-First SearchBinary Tree
Medium
67.1% Accepted
73.7% Freq
Solution
Hash TableTreeDepth-First Search+2 more
1740. Find Distance in a Binary Tree
💰 Premium
Medium
74.1% Accepted
70.1% Freq
Solution
Hash TableTreeDepth-First Search+2 more
Medium
56.4% Accepted
69.2% Freq
Solution
StringTreeDepth-First Search+1 more
Medium
77.2% Accepted
67.9% Freq
Solution
TreeDepth-First SearchBinary Tree
536. Construct Binary Tree from String
💰 Premium
Medium
58.6% Accepted
67.8% Freq
Solution
StringStackTree+2 more
Medium
86.7% Accepted
67.4% Freq
Solution
TreeDepth-First SearchBinary Tree
Medium
55.3% Accepted
66.7% Freq
Solution
Dynamic ProgrammingTreeDepth-First Search+1 more
Medium
62.6% Accepted
66.5% Freq
Solution
TreeBreadth-First SearchBinary Tree
Medium
44.8% Accepted
65.8% Freq
Solution
TreeDepth-First SearchBreadth-First Search+1 more
Medium
66.3% Accepted
64.5% Freq
Solution
Linked ListTreeDepth-First Search+2 more
Medium
71.6% Accepted
64.2% Freq
Solution
TreeBreadth-First SearchBinary Tree
545. Boundary of Binary Tree
💰 Premium
Medium
47.6% Accepted
64.0% Freq
Solution
TreeDepth-First SearchBinary Tree
366. Find Leaves of Binary Tree
💰 Premium
Medium
81.2% Accepted
63.7% Freq
Solution
TreeDepth-First SearchBinary Tree
Medium
65.6% Accepted
63.5% Freq
Solution
Linked ListStackTree+4 more
Medium
62.9% Accepted
63.1% Freq
Solution
MathDynamic ProgrammingTree+2 more
Medium
75.7% Accepted
60.8% Freq
Solution
StackTreeDesign+3 more
Medium
57.8% Accepted
60.6% Freq
Solution
TreeDepth-First SearchBinary Search Tree+1 more
156. Binary Tree Upside Down
💰 Premium
Medium
64.9% Accepted
60.6% Freq
TreeDepth-First SearchBinary Tree
Medium
76.1% Accepted
60.3% Freq
Solution
TreeDepth-First SearchBinary Search Tree+1 more
Medium
69.4% Accepted
60.2% Freq
Solution
TreeDepth-First SearchBinary Search Tree+1 more
Medium
58.8% Accepted
59.6% Freq
Solution
TreeBreadth-First SearchBinary Tree
Hard
37.0% Accepted
59.4% Freq
Hash TableBinary SearchTree+2 more
Medium
67.8% Accepted
59.2% Freq
Solution
ArrayHash TableDivide and Conquer+2 more
Medium
60.4% Accepted
58.2% Freq
Solution
Hash TableTreeDepth-First Search+1 more
Medium
61.3% Accepted
57.7% Freq
Solution
Dynamic ProgrammingBacktrackingTree+2 more
Medium
34.9% Accepted
56.9% Freq
Solution
TreeDepth-First SearchBinary Search Tree+1 more
Hard
45.6% Accepted
56.5% Freq
Dynamic ProgrammingTreeDepth-First Search+2 more
Medium
69.6% Accepted
55.3% Freq
Solution
Linked ListStackTree+2 more
Medium
79.3% Accepted
54.7% Freq
Hash TableTreeDepth-First Search+1 more
Medium
64.7% Accepted
54.1% Freq
Solution
Hash TableTreeDepth-First Search+2 more
272. Closest Binary Search Tree Value II
💰 Premium
Hard
60.8% Accepted
53.9% Freq
Solution
Two PointersStackTree+4 more
Medium
56.5% Accepted
53.1% Freq
Solution
Linked ListTreeDepth-First Search+2 more
Medium
46.2% Accepted
52.7% Freq
Solution
TreeDepth-First SearchBinary Tree
Medium
83.8% Accepted
52.5% Freq
Solution
ArrayStackTree+3 more
Medium
72.4% Accepted
51.6% Freq
Solution
ArrayHash TableTree+2 more
Medium
80.9% Accepted
51.6% Freq
Solution
Hash TableTreeDepth-First Search+2 more
Medium
69.2% Accepted
51.6% Freq
Solution
TreeDepth-First SearchBinary Tree
Medium
61.2% Accepted
50.0% Freq
Solution
BacktrackingTreeDepth-First Search+1 more
Medium
79.0% Accepted
49.0% Freq
Solution
Hash TableTreeDepth-First Search+2 more
Hard
54.9% Accepted
48.6% Freq
Solution
ArrayTreeDepth-First Search+2 more
Medium
82.7% Accepted
48.4% Freq
Solution
Dynamic ProgrammingTreeRecursion+2 more
Medium
53.7% Accepted
48.3% Freq
Solution
TreeBinary Search TreeBinary Tree
Medium
77.2% Accepted
48.3% Freq
Solution
TreeDepth-First SearchBinary Tree
333. Largest BST Subtree
💰 Premium
Medium
45.7% Accepted
48.1% Freq
Solution
Dynamic ProgrammingTreeDepth-First Search+2 more
Medium
66.5% Accepted
47.2% Freq
Solution
TreeDepth-First SearchBinary Search Tree+1 more
Medium
59.0% Accepted
46.4% Freq
Solution
StringTreeDepth-First Search+4 more
Medium
82.4% Accepted
45.0% Freq
ArrayMathStack+3 more
Medium
54.3% Accepted
44.9% Freq
Solution
TreeDepth-First SearchBinary Tree
Hard
83.3% Accepted
44.5% Freq
Solution
StringTreeDepth-First Search+1 more
Medium
72.4% Accepted
44.2% Freq
Solution
TreeDepth-First SearchBinary Tree
Medium
71.0% Accepted
44.1% Freq
Solution
TreeDepth-First SearchBinary Search Tree+1 more
Medium
65.4% Accepted
43.5% Freq
Solution
Linked ListDivide and ConquerTree+2 more
Medium
85.8% Accepted
42.8% Freq
Solution
TreeDepth-First SearchBreadth-First Search+1 more
Medium
43.1% Accepted
42.7% Freq
Solution
TreeDepth-First SearchBinary Tree
Medium
73.3% Accepted
42.7% Freq
Solution
TreeBinary Search TreeBinary Tree
Medium
51.5% Accepted
42.5% Freq
Solution
ArrayStackTree+4 more
431. Encode N-ary Tree to Binary Tree
💰 Premium
Hard
80.4% Accepted
41.3% Freq
Solution
TreeDepth-First SearchBreadth-First Search+2 more
Medium
67.3% Accepted
40.6% Freq
Solution
ArrayHash TableDivide and Conquer+2 more
Medium
68.5% Accepted
40.5% Freq
Solution
Hash TableTreeDepth-First Search+1 more
510. Inorder Successor in BST II
💰 Premium
Medium
61.1% Accepted
40.3% Freq
Solution
TreeBinary Search TreeBinary Tree
Medium
67.5% Accepted
39.9% Freq
Solution
TreeDepth-First SearchBreadth-First Search+1 more
Medium
49.6% Accepted
39.4% Freq
Solution
TreeDepth-First SearchBinary Tree
Medium
78.0% Accepted
39.0% Freq
Solution
ArrayHash TableDivide and Conquer+2 more
250. Count Univalue Subtrees
💰 Premium
Medium
57.3% Accepted
37.9% Freq
Solution
TreeDepth-First SearchBinary Tree
Medium
66.0% Accepted
37.0% Freq
Solution
TreeDepth-First SearchBreadth-First Search+1 more
Medium
72.8% Accepted
36.2% Freq
Solution
Hash TableTreeDepth-First Search+2 more
Medium
57.7% Accepted
35.7% Freq
ArrayDynamic ProgrammingGreedy+2 more
Medium
66.3% Accepted
35.0% Freq
Solution
TreeDepth-First SearchBreadth-First Search+1 more
Medium
73.6% Accepted
34.4% Freq
Solution
TreeDepth-First SearchBreadth-First Search+1 more
Medium
66.8% Accepted
34.0% Freq
Solution
TreeBreadth-First SearchBinary Tree
Medium
48.1% Accepted
33.8% Freq
Solution
TreeDepth-First SearchBinary Tree
Medium
72.0% Accepted
33.7% Freq
Solution
TreeDepth-First SearchBreadth-First Search+1 more
Medium
52.0% Accepted
33.6% Freq
ArrayTreeDepth-First Search+1 more
Medium
67.0% Accepted
33.3% Freq
Solution
TreeBreadth-First SearchBinary Tree
Medium
61.6% Accepted
32.1% Freq
TreeDepth-First SearchSorting+1 more
Medium
44.0% Accepted
31.5% Freq
Solution
TreeDepth-First SearchBreadth-First Search+3 more
Medium
84.7% Accepted
31.1% Freq
Solution
Divide and ConquerGreedyTree+3 more
Medium
88.3% Accepted
29.7% Freq
Solution
TreeDepth-First SearchBinary Search Tree+1 more
Medium
80.1% Accepted
28.8% Freq
Solution
TreeDepth-First SearchBinary Search Tree+2 more
Medium
59.1% Accepted
28.0% Freq
Solution
TreeBreadth-First SearchSorting+1 more
Medium
52.7% Accepted
27.0% Freq
TreeDepth-First SearchBinary Tree
Medium
74.3% Accepted
26.8% Freq
Solution
TreeBreadth-First SearchBinary Tree
Medium
86.7% Accepted
24.6% Freq
Solution
TreeDepth-First SearchBreadth-First Search+1 more
Medium
81.7% Accepted
24.4% Freq
Solution
ArrayHash TableTree+1 more
285. Inorder Successor in BST
💰 Premium
Medium
51.0% Accepted
23.6% Freq
Solution
TreeDepth-First SearchBinary Search Tree+1 more
Medium
43.5% Accepted
23.2% Freq
ArrayBinary SearchTree+3 more
Medium
75.6% Accepted
22.3% Freq
Solution
Hash TableTreeDepth-First Search+2 more
Medium
66.9% Accepted
22.2% Freq
Solution
Dynamic ProgrammingTreeDepth-First Search+1 more
Medium
70.4% Accepted
21.3% Freq
Solution
StringTreeDepth-First Search+1 more
Medium
86.4% Accepted
21.3% Freq
Solution
TreeDepth-First SearchBreadth-First Search+1 more
Medium
69.6% Accepted
21.0% Freq
Solution
TreeDepth-First SearchBinary Tree
Medium
78.1% Accepted
14.5% Freq
Solution
TreeDepth-First SearchBinary Tree
Medium
86.2% Accepted
11.9% Freq
Solution
ArrayDivide and ConquerStack+3 more
Medium
46.6% Accepted
Solution
StringStackTree+1 more
Medium
64.1% Accepted
Solution
TreeDepth-First SearchBreadth-First Search+1 more
663. Equal Tree Partition
💰 Premium
Medium
42.3% Accepted
Solution
TreeDepth-First SearchBinary Tree
742. Closest Leaf in a Binary Tree
💰 Premium
Medium
47.3% Accepted
Solution
TreeDepth-First SearchBreadth-First Search+1 more
Medium
64.8% Accepted
Solution
TreeBreadth-First SearchDesign+1 more
Medium
51.4% Accepted
Solution
TreeDepth-First SearchBinary Tree
Medium
61.0% Accepted
Solution
StringBacktrackingTree+2 more
Medium
54.4% Accepted
TreeDepth-First SearchBinary Tree
Medium
75.7% Accepted
MathTreeBinary Tree
1120. Maximum Average Subtree
💰 Premium
Medium
66.9% Accepted
Solution
TreeDepth-First SearchBinary Tree
Medium
84.1% Accepted
Solution
Hash TableTreeDepth-First Search+3 more
Medium
51.9% Accepted
Solution
Linked ListTreeDepth-First Search+1 more
Medium
47.4% Accepted
TreeDepth-First SearchBreadth-First Search+1 more
Medium
68.3% Accepted
Solution
Bit ManipulationTreeDepth-First Search+2 more
Medium
71.8% Accepted
Solution
TreeDepth-First SearchBinary Tree
Hard
53.8% Accepted
Solution
ArrayMathDivide and Conquer+7 more
1586. Binary Search Tree Iterator II
💰 Premium
Medium
63.3% Accepted
Solution
StackTreeDesign+3 more
Hard
62.6% Accepted
StringStackTree+1 more
Medium
75.0% Accepted
Solution
TreeBreadth-First SearchBinary Tree
Medium
71.4% Accepted
Hash TableTreeDepth-First Search+2 more
1660. Correct a Binary Tree
💰 Premium
Medium
74.2% Accepted
Solution
Hash TableTreeDepth-First Search+2 more
1666. Change the Root of a Binary Tree
💰 Premium
Medium
75.0% Accepted
TreeDepth-First SearchBinary Tree
1902. Depth of BST Given Insertion Order
💰 Premium
Medium
42.4% Accepted
ArrayTreeBinary Search Tree+2 more
Medium
77.2% Accepted
Solution
TreeDepth-First SearchBinary Tree
Hard
57.4% Accepted
MathDynamic ProgrammingTree+2 more
Hard
56.6% Accepted
Dynamic ProgrammingTreeDepth-First Search+1 more
2445. Number of Nodes With Value One
💰 Premium
Medium
65.7% Accepted
ArrayTreeDepth-First Search+2 more
Medium
66.6% Accepted
StackTreeDepth-First Search+1 more
2773. Height of Special Binary Tree
💰 Premium
Medium
74.2% Accepted
TreeDepth-First SearchBreadth-First Search+1 more
2792. Count Nodes That Are Great Enough
💰 Premium
Hard
56.2% Accepted
Divide and ConquerTreeDepth-First Search+1 more
Medium
69.0% Accepted
TreeDepth-First SearchBreadth-First Search+1 more
Hard
62.3% Accepted
ArrayTreeBinary Tree
Page 1 of 12
Counting (117 questions)
Medium
66.1% Accepted
92.2% Freq
Solution
Hash TableMathSorting+2 more
Hard
58.1% Accepted
90.5% Freq
Solution
Hash TableMathString+2 more
Medium
56.6% Accepted
87.4% Freq
Solution
Hash TableStringGreedy+3 more
Medium
65.1% Accepted
86.8% Freq
Solution
ArrayHash TableDivide and Conquer+5 more
Medium
45.7% Accepted
82.9% Freq
Solution
Hash TableMathString+2 more
Medium
54.1% Accepted
79.0% Freq
Solution
Hash TableMathString+1 more
Medium
63.5% Accepted
78.7% Freq
ArrayHash TableMatrix+1 more
Medium
59.7% Accepted
78.1% Freq
Solution
ArrayHash TableString+5 more
Hard
71.4% Accepted
77.0% Freq
Solution
StringBacktrackingGreedy+2 more
Medium
67.2% Accepted
76.6% Freq
Solution
Hash TableStringGreedy+2 more
Medium
62.2% Accepted
75.3% Freq
Solution
ArrayHash TableGreedy+3 more
Medium
53.6% Accepted
72.8% Freq
Solution
ArrayHash TableString+2 more
Medium
72.7% Accepted
72.1% Freq
Hash TableStringCounting
Hard
67.0% Accepted
71.8% Freq
Solution
ArrayHash TableSliding Window+1 more
Hard
57.4% Accepted
71.2% Freq
Solution
Hash TableDynamic ProgrammingGraph+3 more
Medium
44.4% Accepted
70.7% Freq
ArrayHash TableString+3 more
Hard
36.5% Accepted
67.8% Freq
ArrayHash TableMath+5 more
Medium
39.8% Accepted
67.7% Freq
Hash TableStringCounting
Medium
74.8% Accepted
66.3% Freq
Solution
Hash TableStringSorting+3 more
Medium
82.3% Accepted
66.1% Freq
Solution
Hash TableStringCounting
Medium
55.3% Accepted
63.4% Freq
Solution
ArrayHash TableSorting+1 more
Medium
45.0% Accepted
62.6% Freq
Solution
ArrayHash TableTwo Pointers+4 more
Medium
37.2% Accepted
61.3% Freq
ArrayHash TableCounting
Medium
39.5% Accepted
59.5% Freq
Hash TableStringDynamic Programming+1 more
Medium
51.8% Accepted
59.2% Freq
Solution
Hash TableStringCounting
2950. Number of Divisible Substrings
💰 Premium
Medium
73.8% Accepted
58.2% Freq
Hash TableStringCounting+1 more
Medium
48.5% Accepted
57.3% Freq
Solution
ArrayHash TableMath+1 more
Medium
36.7% Accepted
54.7% Freq
Hash TableStringGreedy+1 more
Medium
62.2% Accepted
53.7% Freq
ArrayHash TableCounting
358. Rearrange String k Distance Apart
💰 Premium
Hard
39.4% Accepted
53.5% Freq
Solution
Hash TableStringGreedy+3 more
Medium
35.0% Accepted
52.7% Freq
ArrayHash TableGreedy+1 more
Medium
59.8% Accepted
52.0% Freq
ArrayHash TableString+2 more
Medium
62.9% Accepted
51.7% Freq
Solution
Hash TableMathBacktracking+2 more
Medium
63.6% Accepted
51.3% Freq
Solution
ArrayHash TableGreedy+2 more
Medium
53.4% Accepted
48.3% Freq
Solution
ArrayHash TableCounting
Medium
46.0% Accepted
47.5% Freq
Solution
ArrayHash TableTwo Pointers+2 more
Medium
77.0% Accepted
46.3% Freq
Solution
ArrayHash TableString+1 more
Medium
73.5% Accepted
45.9% Freq
Solution
ArrayDepth-First SearchBreadth-First Search+3 more
Medium
46.2% Accepted
44.9% Freq
Solution
ArrayHash TableCounting
Medium
48.2% Accepted
44.5% Freq
ArrayHash TableGreedy+3 more
Medium
10.9% Accepted
44.3% Freq
ArrayHash TableString+2 more
Medium
75.2% Accepted
43.6% Freq
ArrayHash TableString+1 more
Medium
54.3% Accepted
43.0% Freq
Solution
ArrayHash TableMath+1 more
Hard
20.4% Accepted
42.4% Freq
ArrayHash TableBinary Search+3 more
Medium
51.0% Accepted
42.0% Freq
StringCounting
Medium
60.5% Accepted
41.4% Freq
Solution
ArrayGreedySorting+1 more
Medium
51.9% Accepted
41.3% Freq
ArrayHash TableDesign+1 more
Hard
43.2% Accepted
40.3% Freq
ArrayHash TableDynamic Programming+1 more
Hard
40.8% Accepted
39.8% Freq
ArrayHash TableMath+4 more
Medium
60.2% Accepted
39.4% Freq
Hash TableStringCounting
Medium
80.8% Accepted
37.9% Freq
Solution
ArrayHash TableBit Manipulation+1 more
Medium
59.0% Accepted
37.6% Freq
Solution
ArrayDesignCounting+1 more
Medium
54.2% Accepted
37.4% Freq
Solution
Hash TableStringSorting+1 more
Medium
54.4% Accepted
37.0% Freq
ArrayHash TableGreedy+1 more
Medium
75.0% Accepted
37.0% Freq
ArrayHash TableString+1 more
Medium
56.8% Accepted
35.7% Freq
ArrayHash TableSorting+1 more
Hard
81.6% Accepted
35.4% Freq
Solution
ArrayHash TableString+5 more
Medium
24.9% Accepted
35.4% Freq
Hash TableStringGreedy+2 more
Medium
80.9% Accepted
35.1% Freq
ArrayHash TableMath+1 more
Medium
83.6% Accepted
33.9% Freq
Solution
Hash TableStringBacktracking+1 more
Medium
63.1% Accepted
32.1% Freq
Solution
ArrayHash TableGreedy+1 more
Medium
42.8% Accepted
31.7% Freq
ArrayHash TableMath+1 more
Medium
72.5% Accepted
31.1% Freq
Solution
ArrayHash TableSorting+1 more
Medium
70.1% Accepted
30.9% Freq
Solution
ArrayHash TableCounting
Medium
75.0% Accepted
28.5% Freq
Solution
Hash TableStringCounting
Hard
60.8% Accepted
27.6% Freq
Solution
ArrayStringTrie+1 more
Medium
70.9% Accepted
27.3% Freq
Solution
Hash TableStringGreedy+2 more
Medium
42.0% Accepted
26.9% Freq
ArrayHash TableCounting
Medium
52.2% Accepted
24.9% Freq
Hash TableStringCounting+1 more
Medium
63.7% Accepted
ArrayHash TableGreedy+2 more
Hard
65.1% Accepted
Solution
ArrayCounting
Medium
76.8% Accepted
Solution
ArrayHash TableBinary Search+2 more
Medium
68.6% Accepted
Solution
Hash TableStringGreedy+1 more
Medium
55.2% Accepted
Solution
Hash TableTreeDepth-First Search+2 more
Medium
71.4% Accepted
Hash TableTreeDepth-First Search+2 more
Medium
37.5% Accepted
Hash TableStringCounting+1 more
Hard
41.7% Accepted
ArrayHash TableTwo Pointers+4 more
Hard
43.4% Accepted
ArrayMathCounting+1 more
Medium
81.3% Accepted
Solution
ArrayHash TableCounting
Medium
51.9% Accepted
ArrayHash TableMath+2 more
Hard
35.1% Accepted
ArrayHash TableCounting+2 more
2067. Number of Equal Count Substrings
💰 Premium
Medium
44.9% Accepted
Hash TableStringSliding Window+1 more
Medium
74.3% Accepted
Solution
Hash TableMathString+2 more
Medium
64.1% Accepted
Solution
Hash TableStringRolling Hash+2 more
Medium
73.0% Accepted
Hash TableStringCounting
Medium
59.0% Accepted
ArrayHash TableString+1 more
Hard
41.1% Accepted
ArrayHash TableGreedy+1 more
Medium
50.2% Accepted
Hash TableDesignQueue+2 more
Medium
27.3% Accepted
Hash TableStringCounting
Medium
48.7% Accepted
Hash TableMathString+2 more
2782. Number of Unique Categories
💰 Premium
Medium
83.3% Accepted
Solution
Union FindInteractiveCounting
Medium
26.2% Accepted
ArrayHash TableTwo Pointers+3 more
Medium
62.0% Accepted
Solution
ArrayHash TableGreedy+1 more
2955. Number of Same-End Substrings
💰 Premium
Medium
61.6% Accepted
Solution
ArrayHash TableString+2 more
Medium
61.9% Accepted
Solution
Hash TableStringBinary Search+2 more
Medium
38.8% Accepted
Solution
Hash TableStringBinary Search+2 more
Medium
79.9% Accepted
Solution
Hash TableStringGreedy+2 more
Medium
28.5% Accepted
Hash TableStringGreedy+3 more
Medium
49.5% Accepted
MathStringCounting
Medium
43.3% Accepted
ArrayHash TableCounting
Medium
53.3% Accepted
StringGreedyCounting
Medium
37.9% Accepted
ArrayHash TableSorting+2 more
Hard
26.7% Accepted
ArrayHash TableSorting+2 more
Hard
38.3% Accepted
ArrayHash TableString+3 more
Medium
36.0% Accepted
ArrayHash TableCounting+1 more
Hard
25.6% Accepted
Hash TableStringDynamic Programming+2 more
Hard
12.9% Accepted
Hash TableMathString+2 more
3672. Sum of Weighted Modes in Subarrays
💰 Premium
Medium
55.2% Accepted
ArrayHash TableSliding Window+2 more
Medium
34.1% Accepted
ArrayHash TableSliding Window+2 more
Page 1 of 10
Design (115 questions)
Medium
46.2% Accepted
98.8% Freq
Solution
Hash TableLinked ListDesign+1 more
Hard
47.7% Accepted
86.6% Freq
Solution
Hash TableLinked ListDesign+1 more
588. Design In-Memory File System
💰 Premium
Hard
48.3% Accepted
85.8% Freq
Solution
Hash TableStringDesign+2 more
Hard
44.0% Accepted
85.1% Freq
Solution
Hash TableLinked ListDesign+1 more
Medium
55.1% Accepted
83.2% Freq
Solution
ArrayHash TableMath+2 more
348. Design Tic-Tac-Toe
💰 Premium
Medium
58.7% Accepted
82.6% Freq
Solution
ArrayHash TableDesign+2 more
362. Design Hit Counter
💰 Premium
Medium
69.3% Accepted
81.6% Freq
Solution
ArrayBinary SearchDesign+2 more
Medium
49.6% Accepted
80.5% Freq
Solution
Hash TableStringBinary Search+1 more
1570. Dot Product of Two Sparse Vectors
💰 Premium
Medium
89.9% Accepted
80.3% Freq
Solution
ArrayHash TableTwo Pointers+1 more
Hard
53.8% Accepted
79.4% Freq
Solution
Two PointersDesignSorting+2 more
1166. Design File System
💰 Premium
Medium
65.0% Accepted
77.8% Freq
Solution
Hash TableStringDesign+1 more
Hard
59.8% Accepted
76.9% Freq
Solution
StringTreeDepth-First Search+3 more
642. Design Search Autocomplete System
💰 Premium
Hard
49.6% Accepted
76.8% Freq
Solution
StringDepth-First SearchDesign+4 more
Medium
44.6% Accepted
75.4% Freq
ArrayHash TableTree+3 more
353. Design Snake Game
💰 Premium
Medium
39.9% Accepted
72.6% Freq
Solution
ArrayHash TableDesign+2 more
Medium
49.4% Accepted
72.5% Freq
Solution
Hash TableDesignHeap (Priority Queue)+1 more
Medium
48.6% Accepted
71.2% Freq
Solution
Hash TableDesignHeap (Priority Queue)+2 more
Medium
61.7% Accepted
70.8% Freq
Solution
ArrayHash TableDesign
Medium
70.2% Accepted
70.7% Freq
Solution
ArrayHash TableDesign+1 more
Medium
36.7% Accepted
70.7% Freq
Solution
ArrayHash TableBinary Search+1 more
Medium
52.8% Accepted
70.3% Freq
Solution
ArrayHash TableString+3 more
Medium
53.2% Accepted
69.8% Freq
Solution
ArrayLinked ListDesign+1 more
Medium
74.7% Accepted
68.5% Freq
Solution
ArrayHash TableString+2 more
Medium
39.4% Accepted
67.0% Freq
Solution
ArrayHash TableBinary Search+3 more
Medium
68.2% Accepted
66.9% Freq
Solution
StackDesignMonotonic Stack+1 more
Hard
44.4% Accepted
66.5% Freq
Solution
DesignSegment TreeOrdered Set
Medium
74.2% Accepted
66.4% Freq
Solution
Hash TableStringDesign
244. Shortest Word Distance II
💰 Premium
Medium
62.4% Accepted
66.3% Freq
Solution
ArrayHash TableTwo Pointers+2 more
Hard
48.7% Accepted
66.0% Freq
Linked ListStringStack+3 more
Medium
49.2% Accepted
65.9% Freq
ArrayHash TableDesign+1 more
Medium
58.0% Accepted
65.2% Freq
Hash TableLinked ListDesign+1 more
631. Design Excel Sum Formula
💰 Premium
Hard
40.5% Accepted
64.8% Freq
Solution
ArrayHash TableString+4 more
Medium
65.4% Accepted
64.6% Freq
Solution
StackTreeDepth-First Search+3 more
1429. First Unique Number
💰 Premium
Medium
56.5% Accepted
63.5% Freq
Solution
ArrayHash TableDesign+2 more
1244. Design A Leaderboard
💰 Premium
Medium
68.0% Accepted
61.1% Freq
Solution
Hash TableDesignSorting
Hard
36.1% Accepted
61.1% Freq
Solution
ArrayHash TableMath+2 more
Medium
75.7% Accepted
60.8% Freq
Solution
StackTreeDesign+3 more
Medium
66.4% Accepted
60.8% Freq
Hash TableTreeDepth-First Search+1 more
Medium
68.7% Accepted
60.7% Freq
Solution
Hash TableStringDesign+1 more
271. Encode and Decode Strings
💰 Premium
Medium
50.5% Accepted
60.1% Freq
Solution
ArrayStringDesign
Medium
47.7% Accepted
60.1% Freq
Solution
StringDepth-First SearchDesign+1 more
Medium
78.0% Accepted
59.2% Freq
Solution
ArrayLinked ListStack+3 more
Medium
29.5% Accepted
58.4% Freq
Solution
Linked ListDesign
635. Design Log Storage System
💰 Premium
Medium
59.2% Accepted
58.2% Freq
Solution
Hash TableStringDesign+1 more
Medium
43.1% Accepted
58.1% Freq
Solution
DesignHeap (Priority Queue)Ordered Set
Hard
66.5% Accepted
58.0% Freq
Solution
Hash TableStackDesign+1 more
Medium
86.5% Accepted
57.9% Freq
Solution
Hash TableStringDesign+1 more
Medium
43.6% Accepted
57.6% Freq
Hash TableLinked ListDesign+1 more
Hard
35.1% Accepted
57.2% Freq
DesignSegment TreeOrdered Set
1804. Implement Trie II (Prefix Tree)
💰 Premium
Medium
63.1% Accepted
56.1% Freq
Solution
Hash TableStringDesign+1 more
Medium
57.2% Accepted
56.0% Freq
Solution
ArrayDesignMatrix+1 more
251. Flatten 2D Vector
💰 Premium
Medium
50.3% Accepted
54.3% Freq
Solution
ArrayTwo PointersDesign+1 more
Medium
58.2% Accepted
51.6% Freq
Solution
ArrayBinary SearchDesign+2 more
Hard
37.6% Accepted
50.3% Freq
ArrayHash TableString+2 more
Hard
51.5% Accepted
49.0% Freq
Solution
ArrayStringDesign+2 more
Medium
59.3% Accepted
48.7% Freq
Solution
ArrayMathDesign+1 more
Hard
62.8% Accepted
48.1% Freq
Solution
ArrayHash TableDesign+2 more
Medium
80.0% Accepted
47.7% Freq
Solution
ArrayStackDesign
Medium
59.0% Accepted
46.4% Freq
Solution
StringTreeDepth-First Search+4 more
Medium
57.2% Accepted
46.1% Freq
Solution
Hash TableStringDepth-First Search+2 more
Medium
70.6% Accepted
46.0% Freq
Solution
Hash TableDesignHeap (Priority Queue)+1 more
Medium
82.4% Accepted
45.0% Freq
ArrayMathStack+3 more
Medium
62.8% Accepted
44.9% Freq
Solution
ArrayMathDesign+2 more
Hard
71.0% Accepted
44.3% Freq
Solution
Binary SearchDesignSegment Tree+2 more
308. Range Sum Query 2D - Mutable
💰 Premium
Medium
45.1% Accepted
43.4% Freq
Solution
ArrayDesignBinary Indexed Tree+2 more
431. Encode N-ary Tree to Binary Tree
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Hard
80.4% Accepted
41.3% Freq
Solution
TreeDepth-First SearchBreadth-First Search+2 more
Medium
51.9% Accepted
41.3% Freq
ArrayHash TableDesign+1 more
Hard
38.4% Accepted
38.5% Freq
DesignQueueHeap (Priority Queue)+2 more
Medium
59.0% Accepted
37.6% Freq
Solution
ArrayDesignCounting+1 more
Hard
36.6% Accepted
35.6% Freq
Binary SearchDynamic ProgrammingBit Manipulation+4 more
Medium
45.6% Accepted
35.1% Freq
Hash TableStringBinary Search+3 more
Medium
62.5% Accepted
32.8% Freq
Solution
ArrayBinary SearchDesign+3 more
Medium
42.1% Accepted
30.9% Freq
Solution
ArrayDivide and ConquerDesign+2 more
Medium
64.4% Accepted
29.9% Freq
Solution
ArrayLinked ListDesign+1 more
Medium
56.6% Accepted
25.8% Freq
ArrayLinked ListDesign+2 more
Medium
60.8% Accepted
24.7% Freq
Solution
ArrayDesignIterator
Medium
66.8% Accepted
24.4% Freq
Solution
DesignHeap (Priority Queue)
Hard
40.6% Accepted
23.0% Freq
Solution
ArrayHash TableString+2 more
Medium
52.4% Accepted
22.7% Freq
Solution
ArrayHash TableBinary Search+1 more
Hard
59.7% Accepted
19.4% Freq
Solution
Hash TableBinary SearchUnion Find+3 more
379. Design Phone Directory
💰 Premium
Medium
52.6% Accepted
Solution
ArrayHash TableLinked List+2 more
Medium
64.8% Accepted
Solution
TreeBreadth-First SearchDesign+1 more
Hard
39.7% Accepted
ArrayBinary SearchDesign+2 more
Medium
84.1% Accepted
Solution
Hash TableTreeDepth-First Search+3 more
Medium
72.6% Accepted
Solution
StringBacktrackingDesign+1 more
1586. Binary Search Tree Iterator II
💰 Premium
Medium
63.3% Accepted
Solution
StackTreeDesign+3 more
1756. Design Most Recently Used Queue
💰 Premium
Medium
77.7% Accepted
Solution
ArrayLinked ListDivide and Conquer+3 more
Medium
40.7% Accepted
ArrayHash TableBinary Search+2 more
Hard
61.5% Accepted
DesignHeap (Priority Queue)Data Stream+1 more
Hard
18.0% Accepted
Binary SearchDesignBinary Indexed Tree+1 more
Medium
57.1% Accepted
Solution
Hash TableDesignHeap (Priority Queue)+1 more
Medium
54.3% Accepted
Hash TableBinary SearchUnion Find+5 more
Medium
50.2% Accepted
Hash TableDesignQueue+2 more
Hard
64.4% Accepted
Solution
GraphDesignHeap (Priority Queue)+1 more
3369. Design an Array Statistics Tracker
💰 Premium
Hard
34.7% Accepted
Hash TableBinary SearchDesign+4 more
Medium
67.9% Accepted
ArrayHash TableDesign+3 more
Medium
42.8% Accepted
ArrayBinary SearchDesign+1 more
Page 1 of 10
Simulation (113 questions)
Medium
66.7% Accepted
91.1% Freq
Solution
ArrayMatrixSimulation
Hard
49.5% Accepted
89.7% Freq
Solution
ArrayStringSimulation
Medium
55.3% Accepted
86.3% Freq
Solution
ArrayMatrixSimulation
348. Design Tic-Tac-Toe
💰 Premium
Medium
58.7% Accepted
82.6% Freq
Solution
ArrayHash TableDesign+2 more
Medium
61.0% Accepted
82.1% Freq
Solution
Dynamic ProgrammingQueueSimulation
Medium
46.2% Accepted
75.4% Freq
Solution
ArrayStackSimulation
Hard
48.9% Accepted
74.9% Freq
Solution
ArrayHash TableSorting+2 more
Hard
43.1% Accepted
73.4% Freq
ArraySimulationInteractive
353. Design Snake Game
💰 Premium
Medium
39.9% Accepted
72.6% Freq
Solution
ArrayHash TableDesign+2 more
Medium
70.2% Accepted
70.7% Freq
Solution
ArrayHash TableDesign+1 more
Medium
56.1% Accepted
67.8% Freq
Solution
ArraySortingHeap (Priority Queue)+2 more
Medium
72.0% Accepted
67.1% Freq
Solution
ArrayMatrixSimulation
Medium
56.4% Accepted
66.0% Freq
Solution
MathStringSimulation
Hard
48.7% Accepted
66.0% Freq
Linked ListStringStack+3 more
Medium
49.2% Accepted
65.9% Freq
ArrayHash TableDesign+1 more
Medium
84.5% Accepted
64.0% Freq
Solution
ArrayTwo PointersSimulation
Hard
16.2% Accepted
63.3% Freq
StringSimulation
Medium
43.0% Accepted
62.6% Freq
Solution
MathStringSimulation
Hard
53.5% Accepted
60.3% Freq
Solution
ArrayDepth-First SearchBreadth-First Search+2 more
Medium
82.1% Accepted
60.1% Freq
Solution
ArrayMathRecursion+2 more
Medium
84.5% Accepted
60.0% Freq
Solution
ArrayMatrixSimulation
Medium
66.3% Accepted
59.8% Freq
Solution
MathStringSimulation
Medium
82.0% Accepted
58.6% Freq
Solution
ArrayMathSimulation+1 more
Medium
74.2% Accepted
58.5% Freq
Solution
ArrayMatrixSimulation
Medium
62.7% Accepted
58.4% Freq
Solution
ArraySimulationPrefix Sum
Hard
45.0% Accepted
57.6% Freq
Solution
ArrayHeap (Priority Queue)Simulation+1 more
Medium
89.8% Accepted
56.0% Freq
Solution
ArrayTwo PointersSimulation
Medium
83.4% Accepted
54.6% Freq
Solution
ArrayQueueSorting+1 more
Medium
52.8% Accepted
54.6% Freq
ArrayHeap (Priority Queue)Simulation
Medium
58.3% Accepted
54.4% Freq
Solution
ArrayHash TableSimulation
Medium
56.8% Accepted
53.0% Freq
Solution
ArraySimulation
Medium
78.3% Accepted
51.8% Freq
Solution
StringStackSimulation
Medium
52.0% Accepted
50.5% Freq
StringDynamic ProgrammingSimulation
Medium
73.1% Accepted
49.7% Freq
Solution
ArraySimulation
Medium
61.4% Accepted
47.9% Freq
Solution
StringBit ManipulationSimulation
Hard
56.1% Accepted
47.4% Freq
Solution
ArrayStackSorting+1 more
Medium
54.4% Accepted
46.6% Freq
ArrayHash TableSimulation
Medium
56.0% Accepted
44.9% Freq
StringStackSimulation
Medium
64.9% Accepted
43.0% Freq
StringSimulation
Medium
68.7% Accepted
41.8% Freq
Solution
ArraySimulation
Medium
39.8% Accepted
40.6% Freq
ArraySimulation
Medium
65.0% Accepted
39.6% Freq
MathSimulation
Medium
78.6% Accepted
39.2% Freq
Solution
StringStackSimulation
Medium
70.1% Accepted
38.3% Freq
Solution
StringRecursionSimulation
Medium
67.0% Accepted
37.0% Freq
ArrayStringSimulation
Medium
59.7% Accepted
36.9% Freq
ArrayDepth-First SearchBreadth-First Search+2 more
Medium
72.4% Accepted
33.5% Freq
ArrayMatrixSimulation
Medium
43.4% Accepted
31.8% Freq
Solution
ArrayTwo PointersHeap (Priority Queue)+1 more
Medium
69.9% Accepted
30.5% Freq
Solution
ArrayStackSimulation
Medium
53.7% Accepted
30.1% Freq
ArrayMathSimulation+2 more
Medium
70.7% Accepted
30.1% Freq
Solution
ArrayHash TableMatrix+1 more
Medium
44.8% Accepted
29.4% Freq
StringStackSimulation
Medium
80.4% Accepted
28.7% Freq
Solution
ArrayStackSimulation
Medium
31.8% Accepted
28.6% Freq
StringStackSimulation
Medium
72.7% Accepted
23.2% Freq
Solution
MathStringSimulation
Medium
45.8% Accepted
19.5% Freq
Solution
MathStringSimulation
Medium
71.7% Accepted
19.5% Freq
Solution
ArrayTwo PointersString+1 more
Medium
82.2% Accepted
19.5% Freq
Solution
ArrayLinked ListMatrix+1 more
Medium
89.7% Accepted
14.2% Freq
Solution
Linked ListSimulation
Medium
67.5% Accepted
1.8% Freq
ArrayDivide and ConquerSimulation
Medium
84.7% Accepted
ArrayBinary Indexed TreeSimulation
Medium
68.2% Accepted
Solution
ArrayBrainteaserSimulation
Medium
43.4% Accepted
ArrayHash TableBinary Search+1 more
Medium
44.3% Accepted
ArraySimulation
Medium
56.8% Accepted
Solution
MathBit ManipulationSimulation
Medium
72.2% Accepted
Solution
ArrayMatrixSimulation
1756. Design Most Recently Used Queue
💰 Premium
Medium
77.7% Accepted
Solution
ArrayLinked ListDivide and Conquer+3 more
Medium
72.5% Accepted
ArrayMathSimulation
Medium
53.2% Accepted
Solution
ArrayBinary SearchSimulation+1 more
Medium
57.4% Accepted
Solution
ArrayMathSimulation
Hard
48.4% Accepted
ArrayStringBacktracking+1 more
Medium
62.4% Accepted
Solution
ArrayMatrixSimulation
Medium
81.8% Accepted
StringSimulation
Medium
56.7% Accepted
ArrayHash TableSimulation
Medium
67.3% Accepted
Solution
ArrayMatrixSimulation
Medium
59.3% Accepted
ArrayHash TableSimulation
Medium
84.4% Accepted
Solution
ArrayMatrixSimulation
Medium
49.5% Accepted
MathSimulationNumber Theory
Hard
44.3% Accepted
ArrayHeap (Priority Queue)Simulation
Medium
64.5% Accepted
Solution
ArrayHash TableSorting+2 more
Medium
59.9% Accepted
ArraySortingHeap (Priority Queue)+2 more
Medium
45.8% Accepted
Solution
ArrayHeap (Priority Queue)Simulation
Hard
29.8% Accepted
ArrayBinary Indexed TreeSegment Tree+1 more
Medium
48.4% Accepted
ArrayHash TableSorting+2 more
Medium
54.2% Accepted
Solution
ArrayHash TableSimulation
Hard
12.1% Accepted
ArrayHeap (Priority Queue)Simulation
Hard
38.3% Accepted
ArrayHash TableString+3 more
Medium
79.8% Accepted
StringSimulation
Medium
84.5% Accepted
ArrayTwo PointersSimulation
Medium
34.8% Accepted
Hash TableStringStack+1 more
Hard
14.5% Accepted
ArrayHash TableLinked List+4 more
Medium
56.5% Accepted
ArrayHash TableString+1 more
Medium
34.1% Accepted
ArrayHash TableSliding Window+2 more
Page 1 of 10
Backtracking (108 questions)
Medium
77.9% Accepted
88.8% Freq
Solution
StringDynamic ProgrammingBacktracking
Medium
46.2% Accepted
80.1% Freq
Solution
ArrayStringBacktracking+2 more
Medium
64.8% Accepted
79.3% Freq
Solution
Hash TableStringBacktracking
465. Optimal Account Balancing
💰 Premium
Hard
50.1% Accepted
78.8% Freq
Solution
ArrayDynamic ProgrammingBacktracking+2 more
Hard
65.3% Accepted
78.7% Freq
Solution
ArrayHash TableBacktracking+1 more
Hard
71.4% Accepted
77.0% Freq
Solution
StringBacktrackingGreedy+2 more
Medium
81.6% Accepted
76.6% Freq
Solution
ArrayBacktrackingBit Manipulation
Medium
89.6% Accepted
75.2% Freq
Solution
ArrayBacktrackingBit Manipulation+1 more
Medium
73.1% Accepted
74.1% Freq
Solution
StringDynamic ProgrammingBacktracking
Hard
37.8% Accepted
71.3% Freq
Solution
ArrayStringBacktracking+2 more
Medium
51.4% Accepted
70.6% Freq
Solution
ArrayDynamic ProgrammingBacktracking
Hard
54.5% Accepted
70.6% Freq
Solution
ArrayHash TableString+4 more
Medium
54.4% Accepted
69.7% Freq
Solution
StringBacktracking
Hard
42.4% Accepted
69.2% Freq
Solution
MathStringBacktracking
Hard
49.5% Accepted
67.7% Freq
Solution
StringBacktrackingBreadth-First Search
Hard
27.3% Accepted
65.5% Freq
Solution
Hash TableStringBacktracking+1 more
Medium
60.3% Accepted
65.3% Freq
Solution
ArrayBacktrackingBit Manipulation
Hard
44.6% Accepted
63.9% Freq
ArrayDynamic ProgrammingBacktracking+2 more
Medium
38.3% Accepted
61.7% Freq
Solution
ArrayDynamic ProgrammingBacktracking+3 more
Hard
82.6% Accepted
60.6% Freq
Solution
ArrayBacktrackingBit Manipulation+1 more
Medium
58.4% Accepted
58.8% Freq
Solution
ArrayBacktracking
Medium
61.3% Accepted
57.7% Freq
Solution
Dynamic ProgrammingBacktrackingTree+2 more
Medium
62.4% Accepted
57.4% Freq
Solution
ArrayBacktrackingSorting
Medium
54.9% Accepted
56.7% Freq
MathDynamic ProgrammingBacktracking
Medium
83.4% Accepted
56.5% Freq
Solution
BacktrackingDepth-First SearchBreadth-First Search+1 more
Hard
50.8% Accepted
56.1% Freq
Solution
ArrayHash TableMath+4 more
Medium
75.5% Accepted
55.1% Freq
Solution
StringBacktrackingBit Manipulation
Hard
60.4% Accepted
54.4% Freq
ArrayBacktrackingGraph
Hard
34.8% Accepted
54.4% Freq
ArrayMathString+1 more
Medium
64.7% Accepted
53.6% Freq
Solution
ArrayDynamic ProgrammingBacktracking+2 more
Hard
54.6% Accepted
53.1% Freq
Backtracking
Medium
62.9% Accepted
51.7% Freq
Solution
Hash TableMathBacktracking+2 more
Medium
41.3% Accepted
51.5% Freq
Solution
ArrayDynamic ProgrammingBacktracking+2 more
Hard
40.1% Accepted
50.9% Freq
ArrayDynamic ProgrammingBacktracking+2 more
Medium
61.2% Accepted
50.0% Freq
Solution
BacktrackingTreeDepth-First Search+1 more
Medium
68.2% Accepted
46.1% Freq
Solution
ArrayBacktrackingMatrix
1087. Brace Expansion
💰 Premium
Medium
66.8% Accepted
45.9% Freq
Solution
StringBacktrackingStack+2 more
Medium
72.6% Accepted
45.1% Freq
Solution
ArrayBacktracking
Hard
73.4% Accepted
44.4% Freq
Solution
ArrayDynamic ProgrammingBacktracking+3 more
Hard
11.7% Accepted
43.6% Freq
MathStringBacktracking+2 more
Medium
62.0% Accepted
43.1% Freq
StringDynamic ProgrammingBacktracking+2 more
Medium
62.1% Accepted
42.9% Freq
Solution
ArrayHash TableBacktracking+1 more
Medium
31.3% Accepted
42.4% Freq
ArrayDynamic ProgrammingBacktracking+3 more
Medium
72.9% Accepted
42.0% Freq
Solution
ArrayBacktracking
Hard
51.7% Accepted
41.3% Freq
ArrayBacktrackingBit Manipulation+1 more
Hard
50.4% Accepted
40.8% Freq
Solution
ArrayHash TableString+5 more
Medium
52.1% Accepted
40.6% Freq
Solution
ArrayDynamic ProgrammingBacktracking+3 more
351. Android Unlock Patterns
💰 Premium
Medium
53.5% Accepted
39.0% Freq
Solution
Dynamic ProgrammingBacktrackingBit Manipulation+1 more
Hard
25.3% Accepted
38.5% Freq
BacktrackingBit Manipulation
Medium
63.0% Accepted
38.5% Freq
Solution
MathBacktrackingBit Manipulation
Medium
34.2% Accepted
37.9% Freq
ArrayDynamic ProgrammingBacktracking+2 more
Medium
58.9% Accepted
37.4% Freq
Solution
BacktrackingBreadth-First Search
Hard
81.6% Accepted
35.4% Freq
Solution
ArrayHash TableString+5 more
Medium
25.1% Accepted
35.0% Freq
ArrayDynamic ProgrammingBacktracking+4 more
Medium
83.6% Accepted
33.9% Freq
Solution
Hash TableStringBacktracking+1 more
Medium
68.5% Accepted
33.3% Freq
Solution
Hash TableStringBacktracking
Medium
50.9% Accepted
32.7% Freq
Solution
ArrayHash TableMath+4 more
Medium
69.7% Accepted
31.2% Freq
Solution
ArrayDynamic ProgrammingBacktracking+2 more
Hard
64.5% Accepted
30.5% Freq
Solution
ArrayBacktrackingBit Manipulation+1 more
Medium
54.4% Accepted
30.0% Freq
Solution
ArrayStringBacktracking+1 more
Medium
32.9% Accepted
27.9% Freq
MathBacktrackingNumber Theory
Medium
59.6% Accepted
26.8% Freq
MathBacktrackingGreedy
Medium
87.8% Accepted
23.6% Freq
StringBacktrackingBit Manipulation
Medium
85.7% Accepted
23.2% Freq
Solution
StringBacktrackingStack+1 more
267. Palindrome Permutation II
💰 Premium
Medium
42.2% Accepted
Solution
Hash TableStringBacktracking
320. Generalized Abbreviation
💰 Premium
Medium
60.2% Accepted
Solution
StringBacktrackingBit Manipulation
Medium
53.2% Accepted
Solution
Hash TableStringBacktracking+1 more
Medium
56.3% Accepted
Solution
StringBacktrackingEnumeration
Medium
40.0% Accepted
Solution
StringBacktracking
Medium
35.7% Accepted
Solution
ArrayStringBacktracking+1 more
Medium
61.0% Accepted
Solution
StringBacktrackingTree+2 more
1066. Campus Bikes II
💰 Premium
Medium
55.8% Accepted
Solution
ArrayDynamic ProgrammingBacktracking+2 more
Medium
72.3% Accepted
MathBacktrackingBit Manipulation
Medium
72.6% Accepted
Solution
StringBacktrackingDesign+1 more
Medium
85.2% Accepted
Solution
StringBacktracking
Hard
60.6% Accepted
ArrayMathDynamic Programming+3 more
Medium
48.1% Accepted
ArrayDynamic ProgrammingBacktracking
Hard
57.9% Accepted
Solution
ArrayMathDynamic Programming+4 more
Medium
37.2% Accepted
StringBacktrackingEnumeration
Medium
63.9% Accepted
ArrayDynamic ProgrammingBacktracking+2 more
Medium
79.4% Accepted
Solution
ArrayHash TableString+1 more
Hard
48.4% Accepted
ArrayStringBacktracking+1 more
Medium
43.2% Accepted
ArrayHash TableMath+5 more
Medium
51.0% Accepted
ArrayBacktrackingBit Manipulation+1 more
Medium
57.4% Accepted
ArrayBacktrackingBit Manipulation+2 more
Medium
81.8% Accepted
Solution
MathBacktracking
Medium
53.5% Accepted
Hash TableStringDynamic Programming+1 more
Medium
72.1% Accepted
ArrayMathDynamic Programming+4 more
Page 1 of 9
Enumeration (100 questions)
Medium
66.1% Accepted
92.2% Freq
Solution
Hash TableMathSorting+2 more
Medium
55.8% Accepted
90.7% Freq
Solution
MathCombinatoricsEnumeration
Hard
63.7% Accepted
89.3% Freq
Solution
ArrayMatrixEnumeration
Hard
64.8% Accepted
85.2% Freq
Solution
ArraySegment TreeEnumeration+1 more
Medium
58.2% Accepted
83.1% Freq
Solution
Bit ManipulationBrainteaserEnumeration
Medium
30.0% Accepted
82.9% Freq
ArrayHash TableDynamic Programming+3 more
Medium
64.1% Accepted
81.7% Freq
Solution
ArrayMathGeometry+2 more
Medium
40.4% Accepted
80.8% Freq
ArrayHash TableEnumeration
Hard
71.4% Accepted
77.0% Freq
Solution
StringBacktrackingGreedy+2 more
Hard
63.9% Accepted
76.3% Freq
Solution
MathEnumeration
Medium
89.6% Accepted
75.2% Freq
Solution
ArrayBacktrackingBit Manipulation+1 more
Hard
42.3% Accepted
75.1% Freq
Solution
MathEnumeration
Hard
48.8% Accepted
74.2% Freq
Solution
StringSliding WindowEnumeration+1 more
Medium
35.4% Accepted
71.9% Freq
Solution
ArrayMathEnumeration+1 more
Medium
60.4% Accepted
68.4% Freq
Solution
ArrayGreedyEnumeration
Medium
40.9% Accepted
60.9% Freq
Solution
Two PointersStringEnumeration
Hard
39.7% Accepted
60.5% Freq
Solution
MathStringEnumeration
Hard
64.4% Accepted
59.3% Freq
Solution
ArrayMathGeometry+2 more
Medium
55.9% Accepted
58.6% Freq
ArrayHash TableMath+2 more
Hard
42.2% Accepted
58.3% Freq
StringBinary SearchEnumeration
Hard
52.9% Accepted
57.8% Freq
ArrayMathTree+2 more
Medium
41.4% Accepted
56.5% Freq
Solution
ArrayTwo PointersDynamic Programming+1 more
Medium
17.7% Accepted
54.8% Freq
StringSliding WindowEnumeration
Hard
23.1% Accepted
52.3% Freq
ArrayMathEnumeration+1 more
Medium
62.9% Accepted
51.7% Freq
Solution
Hash TableMathBacktracking+2 more
Hard
17.9% Accepted
50.9% Freq
ArrayStringBit Manipulation+3 more
Hard
43.9% Accepted
47.6% Freq
GraphEnumeration
Medium
60.4% Accepted
47.6% Freq
Hash TableMathString+3 more
Medium
35.0% Accepted
46.7% Freq
ArrayBit ManipulationRecursion+1 more
Medium
50.4% Accepted
44.9% Freq
ArrayMatrixEnumeration
Medium
10.9% Accepted
44.3% Freq
ArrayHash TableString+2 more
Medium
28.3% Accepted
43.6% Freq
ArrayHash TableMath+3 more
Hard
34.4% Accepted
42.4% Freq
ArrayDynamic ProgrammingBinary Indexed Tree+2 more
Medium
79.4% Accepted
42.3% Freq
Solution
StringDepth-First SearchBreadth-First Search+1 more
Medium
72.1% Accepted
41.5% Freq
Hash TableStringDynamic Programming+1 more
Hard
51.7% Accepted
41.3% Freq
ArrayBacktrackingBit Manipulation+1 more
Medium
29.5% Accepted
41.3% Freq
ArrayHash TableMath+1 more
Hard
69.5% Accepted
40.3% Freq
Solution
Hash TableMathCombinatorics+1 more
Hard
39.5% Accepted
39.4% Freq
ArrayGraphSorting+1 more
Hard
40.8% Accepted
38.5% Freq
ArrayHash TableTwo Pointers+2 more
Medium
31.7% Accepted
38.5% Freq
ArrayMathBit Manipulation+1 more
Medium
24.9% Accepted
35.4% Freq
Hash TableStringGreedy+2 more
Medium
25.1% Accepted
35.0% Freq
ArrayDynamic ProgrammingBacktracking+4 more
Medium
43.8% Accepted
34.0% Freq
MathGreedyEnumeration
Hard
64.5% Accepted
30.5% Freq
Solution
ArrayBacktrackingBit Manipulation+1 more
Medium
52.2% Accepted
24.9% Freq
Hash TableStringCounting+1 more
Hard
12.4% Accepted
6.1% Freq
ArrayMathGreedy+2 more
Medium
56.3% Accepted
Solution
StringBacktrackingEnumeration
Medium
35.7% Accepted
Solution
ArrayStringBacktracking+1 more
Hard
66.8% Accepted
Dynamic ProgrammingBit ManipulationTree+2 more
Medium
38.8% Accepted
ArrayEnumeration
Medium
37.2% Accepted
StringBacktrackingEnumeration
Hard
50.1% Accepted
ArrayMathBinary Search+2 more
Medium
48.2% Accepted
MathEnumeration
Hard
35.1% Accepted
ArrayHash TableCounting+2 more
Medium
44.0% Accepted
ArrayGreedySorting+2 more
Medium
51.0% Accepted
ArrayBacktrackingBit Manipulation+1 more
Medium
68.1% Accepted
StringEnumeration
Hard
30.0% Accepted
ArrayTwo PointersBinary Search+4 more
Medium
56.3% Accepted
MathEnumeration
Medium
54.5% Accepted
ArrayHash TableTrie+3 more
Medium
27.7% Accepted
MathDynamic ProgrammingGreedy+1 more
Medium
57.4% Accepted
ArrayBacktrackingBit Manipulation+2 more
Medium
36.5% Accepted
ArrayMathEnumeration+1 more
Medium
31.2% Accepted
StringGreedyEnumeration
Medium
38.3% Accepted
MathStringGreedy+1 more
Medium
43.6% Accepted
ArrayEnumeration
Hard
49.9% Accepted
Bit ManipulationGraphHeap (Priority Queue)+2 more
Medium
24.6% Accepted
ArrayHash TableEnumeration
Medium
26.5% Accepted
ArrayHash TableEnumeration
Medium
32.5% Accepted
ArrayTwo PointersSorting+1 more
Hard
15.6% Accepted
ArrayDynamic ProgrammingMatrix+1 more
Hard
26.6% Accepted
ArrayDynamic ProgrammingMatrix+1 more
Medium
37.9% Accepted
ArrayHash TableSorting+2 more
Hard
26.7% Accepted
ArrayHash TableSorting+2 more
Medium
65.2% Accepted
ArrayBit ManipulationEnumeration
Medium
36.0% Accepted
ArrayHash TableCounting+1 more
Medium
50.5% Accepted
ArrayMathBinary Indexed Tree+4 more
Hard
25.6% Accepted
Hash TableStringDynamic Programming+2 more
Hard
19.7% Accepted
ArrayBinary SearchEnumeration
Medium
30.7% Accepted
StringEnumeration
Medium
43.4% Accepted
Two PointersStringDynamic Programming+1 more
Medium
42.1% Accepted
ArrayMatrixEnumeration+1 more
Hard
21.2% Accepted
ArrayHash TableMatrix+2 more
Medium
54.7% Accepted
Two PointersBinary SearchEnumeration
Page 1 of 9
Union Find (96 questions)
Medium
63.2% Accepted
93.9% Freq
Solution
ArrayDepth-First SearchBreadth-First Search+2 more
Hard
55.8% Accepted
86.6% Freq
Solution
ArrayDepth-First SearchBreadth-First Search+2 more
Medium
47.0% Accepted
86.4% Freq
Solution
ArrayHash TableUnion Find
Medium
60.4% Accepted
74.8% Freq
Solution
ArrayHash TableString+4 more
305. Number of Islands II
💰 Premium
Hard
40.3% Accepted
71.3% Freq
Solution
ArrayHash TableUnion Find
Medium
73.5% Accepted
68.2% Freq
Solution
ArrayDepth-First SearchBreadth-First Search+2 more
Medium
63.6% Accepted
68.0% Freq
Solution
ArrayStringDepth-First Search+4 more
694. Number of Distinct Islands
💰 Premium
Medium
62.6% Accepted
68.0% Freq
Solution
Hash TableDepth-First SearchBreadth-First Search+2 more
Hard
67.3% Accepted
66.1% Freq
Solution
ArrayBinary SearchDepth-First Search+4 more
711. Number of Distinct Islands II
💰 Premium
Hard
55.1% Accepted
65.9% Freq
Solution
Hash TableDepth-First SearchBreadth-First Search+2 more
Medium
69.5% Accepted
65.9% Freq
Solution
Depth-First SearchBreadth-First SearchUnion Find+1 more
Medium
60.0% Accepted
65.4% Freq
Solution
ArrayHash TableString+4 more
Hard
42.7% Accepted
64.8% Freq
Solution
ArrayHash TableDepth-First Search+3 more
Medium
62.5% Accepted
62.9% Freq
Solution
Hash TableDepth-First SearchUnion Find+1 more
Hard
62.5% Accepted
62.8% Freq
Solution
ArrayBinary SearchDepth-First Search+3 more
Medium
44.0% Accepted
62.2% Freq
Solution
ArrayDepth-First SearchBreadth-First Search+2 more
Medium
48.5% Accepted
61.8% Freq
Solution
ArrayBinary SearchBreadth-First Search+3 more
Medium
64.5% Accepted
61.3% Freq
Solution
Depth-First SearchBreadth-First SearchUnion Find+1 more
Medium
44.6% Accepted
59.1% Freq
ArrayHash TableDepth-First Search+5 more
Medium
58.5% Accepted
58.6% Freq
Solution
Depth-First SearchBreadth-First SearchUnion Find+1 more
Medium
52.0% Accepted
56.4% Freq
Solution
Depth-First SearchBreadth-First SearchUnion Find+1 more
Hard
68.3% Accepted
56.1% Freq
Solution
ArrayBit ManipulationUnion Find+1 more
Medium
43.1% Accepted
55.9% Freq
Binary SearchUnion FindGraph+1 more
Medium
49.6% Accepted
54.5% Freq
Solution
Depth-First SearchBreadth-First SearchUnion Find+1 more
Medium
44.6% Accepted
53.9% Freq
Binary SearchUnion FindGraph+1 more
Hard
58.8% Accepted
53.5% Freq
Solution
GreedyDepth-First SearchBreadth-First Search+2 more
Medium
77.6% Accepted
53.3% Freq
Solution
ArrayHash TableDepth-First Search+3 more
Medium
69.8% Accepted
53.1% Freq
Solution
ArrayUnion FindGraph+1 more
Medium
65.7% Accepted
52.9% Freq
Solution
Depth-First SearchBreadth-First SearchUnion Find+1 more
Hard
18.2% Accepted
52.3% Freq
MathStringBreadth-First Search+2 more
Medium
54.9% Accepted
52.1% Freq
ArrayHash TableBinary Search+2 more
Medium
65.7% Accepted
51.8% Freq
Solution
ArrayUnion FindSorting
Medium
81.1% Accepted
51.6% Freq
Solution
StringUnion Find
Medium
66.9% Accepted
50.8% Freq
Solution
Depth-First SearchBreadth-First SearchUnion Find+1 more
Medium
62.3% Accepted
50.3% Freq
Solution
ArrayBinary SearchDepth-First Search+4 more
Hard
41.6% Accepted
49.8% Freq
Solution
ArrayHash TableMath+2 more
Hard
67.2% Accepted
47.6% Freq
Solution
Depth-First SearchBreadth-First SearchUnion Find+1 more
Hard
70.3% Accepted
46.2% Freq
Solution
Union FindGraph
Hard
55.8% Accepted
45.9% Freq
Solution
ArrayHash TableString+3 more
Medium
73.5% Accepted
45.9% Freq
Solution
ArrayDepth-First SearchBreadth-First Search+3 more
1102. Path With Maximum Minimum Value
💰 Premium
Medium
54.3% Accepted
45.4% Freq
Solution
ArrayBinary SearchDepth-First Search+4 more
Medium
66.9% Accepted
44.2% Freq
Solution
ArrayDepth-First SearchBreadth-First Search+2 more
737. Sentence Similarity II
💰 Premium
Medium
50.9% Accepted
43.3% Freq
Solution
ArrayHash TableString+3 more
Hard
47.9% Accepted
43.1% Freq
ArrayMathUnion Find+2 more
Hard
41.7% Accepted
42.0% Freq
Solution
ArrayUnion FindGraph+3 more
Medium
56.3% Accepted
41.7% Freq
ArrayDepth-First SearchBreadth-First Search+2 more
Medium
71.2% Accepted
41.6% Freq
Solution
ArrayDepth-First SearchBreadth-First Search+2 more
Hard
59.4% Accepted
41.1% Freq
Solution
ArrayTwo PointersBreadth-First Search+4 more
261. Graph Valid Tree
💰 Premium
Medium
49.6% Accepted
40.3% Freq
Solution
Depth-First SearchBreadth-First SearchUnion Find+1 more
Medium
60.2% Accepted
40.2% Freq
Solution
ArrayUnion FindSorting
Medium
51.3% Accepted
38.9% Freq
Solution
ArrayStringUnion Find+1 more
Medium
59.9% Accepted
38.8% Freq
Solution
ArrayHash TableTree+4 more
Hard
30.0% Accepted
38.5% Freq
ArrayHash TableMath+2 more
Hard
38.7% Accepted
38.5% Freq
Binary SearchGreedyUnion Find+2 more
Medium
58.2% Accepted
37.2% Freq
Solution
Depth-First SearchBreadth-First SearchUnion Find+1 more
Medium
51.6% Accepted
37.0% Freq
ArrayDepth-First SearchBreadth-First Search+2 more
Hard
63.0% Accepted
36.4% Freq
ArrayGreedyUnion Find+1 more
Hard
49.1% Accepted
34.6% Freq
ArrayUnion FindPrefix Sum+1 more
Hard
35.6% Accepted
32.6% Freq
Solution
Depth-First SearchBreadth-First SearchUnion Find+1 more
Hard
41.8% Accepted
32.6% Freq
Solution
ArrayMathUnion Find+1 more
Medium
44.0% Accepted
31.5% Freq
Solution
TreeDepth-First SearchBreadth-First Search+3 more
Hard
66.2% Accepted
29.8% Freq
Solution
Union FindGraphSorting+2 more
Hard
56.2% Accepted
28.5% Freq
Solution
ArrayHash TableTree+3 more
Hard
59.7% Accepted
19.4% Freq
Solution
Hash TableBinary SearchUnion Find+3 more
Medium
72.9% Accepted
18.3% Freq
Solution
ArrayDepth-First SearchBreadth-First Search+2 more
Medium
77.7% Accepted
16.6% Freq
Solution
Depth-First SearchBreadth-First SearchUnion Find+1 more
Hard
45.2% Accepted
Solution
ArrayHash TableDepth-First Search+3 more
Medium
63.2% Accepted
Solution
Union FindGraphHeap (Priority Queue)+1 more
Hard
65.3% Accepted
Solution
Union FindGraphHeap (Priority Queue)+1 more
Medium
49.5% Accepted
ArrayDepth-First SearchBreadth-First Search+2 more
Hard
53.8% Accepted
Solution
ArrayMathDivide and Conquer+7 more
Hard
48.9% Accepted
ArrayMathUnion Find+1 more
Hard
63.0% Accepted
Solution
ArrayTwo PointersUnion Find+2 more
Medium
48.9% Accepted
ArrayDepth-First SearchUnion Find
Hard
51.6% Accepted
Union FindGraphMinimum Spanning Tree
Hard
47.2% Accepted
Dynamic ProgrammingTreeDepth-First Search+1 more
Hard
45.3% Accepted
Solution
Depth-First SearchBreadth-First SearchUnion Find+2 more
Hard
73.2% Accepted
Solution
Depth-First SearchBreadth-First SearchUnion Find+1 more
Hard
43.6% Accepted
ArrayDepth-First SearchUnion Find+1 more
Hard
45.0% Accepted
ArrayStackUnion Find+1 more
2371. Minimize Maximum Value in a Grid
💰 Premium
Hard
70.4% Accepted
Solution
ArrayUnion FindGraph+3 more
Medium
54.3% Accepted
Hash TableBinary SearchUnion Find+5 more
Hard
32.4% Accepted
ArrayStringDynamic Programming+3 more
Hard
15.7% Accepted
ArrayHash TableBreadth-First Search+2 more
Hard
23.2% Accepted
ArrayDynamic ProgrammingStack+5 more
Medium
70.4% Accepted
Solution
ArrayDepth-First SearchBreadth-First Search+2 more
2782. Number of Unique Categories
💰 Premium
Medium
83.3% Accepted
Solution
Union FindInteractiveCounting
2852. Sum of Remoteness of All Cells
💰 Premium
Medium
70.9% Accepted
Solution
ArrayHash TableDepth-First Search+3 more
Hard
25.5% Accepted
ArrayMathDepth-First Search+3 more
3383. Minimum Runes to Add to Cast Spell
💰 Premium
Hard
42.7% Accepted
ArrayDepth-First SearchBreadth-First Search+3 more
Medium
47.8% Accepted
ArrayHash TableDepth-First Search+3 more
Hard
29.5% Accepted
ArrayBinary SearchDepth-First Search+3 more
Page 1 of 8
Number Theory (73 questions)
Medium
35.4% Accepted
71.9% Freq
Solution
ArrayMathEnumeration+1 more
Hard
36.5% Accepted
67.8% Freq
ArrayHash TableMath+5 more
Hard
57.5% Accepted
64.1% Freq
Solution
ArrayMathStack+1 more
Hard
15.5% Accepted
57.1% Freq
ArrayMathSegment Tree+1 more
Medium
61.9% Accepted
53.1% Freq
Solution
MathGeometryNumber Theory
Medium
20.2% Accepted
52.7% Freq
ArrayMathQueue+3 more
Hard
23.1% Accepted
52.3% Freq
ArrayMathEnumeration+1 more
Hard
30.3% Accepted
51.6% Freq
ArrayMathNumber Theory
Hard
41.6% Accepted
49.8% Freq
Solution
ArrayHash TableMath+2 more
Medium
37.5% Accepted
47.9% Freq
ArrayMathGreedy+2 more
Medium
60.4% Accepted
47.6% Freq
Hash TableMathString+3 more
Medium
27.7% Accepted
45.6% Freq
Solution
MathNumber Theory
Medium
49.1% Accepted
44.7% Freq
ArrayMathNumber Theory
Medium
53.7% Accepted
43.6% Freq
ArrayHash TableMath+1 more
Hard
35.5% Accepted
43.6% Freq
MathDynamic ProgrammingTree+2 more
Hard
11.7% Accepted
43.6% Freq
MathStringBacktracking+2 more
Hard
47.9% Accepted
43.1% Freq
ArrayMathUnion Find+2 more
Medium
28.8% Accepted
41.3% Freq
MathGraphHeap (Priority Queue)+2 more
Hard
62.9% Accepted
41.0% Freq
ArrayMathNumber Theory
Medium
30.9% Accepted
40.3% Freq
MathBinary SearchCombinatorics+1 more
Medium
51.8% Accepted
40.2% Freq
ArrayMathNumber Theory
Hard
40.8% Accepted
39.8% Freq
ArrayHash TableMath+4 more
Medium
40.8% Accepted
39.4% Freq
ArrayMathNumber Theory
Hard
15.8% Accepted
38.5% Freq
MathStringDynamic Programming+2 more
Hard
30.0% Accepted
38.5% Freq
ArrayHash TableMath+2 more
Hard
13.5% Accepted
35.5% Freq
MathStringCombinatorics+1 more
Hard
41.8% Accepted
32.6% Freq
Solution
ArrayMathUnion Find+1 more
Medium
32.9% Accepted
27.9% Freq
MathBacktrackingNumber Theory
Medium
91.5% Accepted
23.3% Freq
Solution
Linked ListMathNumber Theory
Hard
20.5% Accepted
14.2% Freq
ArrayMathTree+1 more
Hard
47.0% Accepted
6.1% Freq
ArrayMathDynamic Programming+3 more
Medium
24.3% Accepted
2.4% Freq
ArrayHash TableMath+2 more
Hard
48.9% Accepted
ArrayMathUnion Find+1 more
Hard
53.7% Accepted
ArrayMathDynamic Programming+2 more
Hard
57.9% Accepted
Solution
ArrayMathDynamic Programming+4 more
Hard
34.8% Accepted
MathRecursionNumber Theory
Hard
43.4% Accepted
ArrayMathCounting+1 more
Medium
51.9% Accepted
ArrayHash TableMath+2 more
Medium
26.5% Accepted
ArrayMathGeometry+2 more
Hard
56.9% Accepted
Solution
MathDynamic ProgrammingCombinatorics+1 more
Hard
58.8% Accepted
ArrayMathSorting+2 more
Medium
70.3% Accepted
ArrayMathDynamic Programming+2 more
2464. Minimum Subarrays in a Valid Split
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Medium
64.6% Accepted
Solution
ArrayMathDynamic Programming+1 more
Medium
42.2% Accepted
ArrayMathNumber Theory
Medium
49.5% Accepted
MathSimulationNumber Theory
Medium
31.7% Accepted
MathBinary SearchNumber Theory
Medium
51.5% Accepted
Solution
MathNumber Theory
Hard
28.5% Accepted
ArrayHash TableMath+1 more
Medium
55.6% Accepted
Solution
ArrayMathBinary Search+2 more
Medium
34.0% Accepted
ArrayMathNumber Theory
Medium
36.5% Accepted
ArrayMathEnumeration+1 more
Hard
53.9% Accepted
Solution
ArrayMathStack+4 more
Hard
42.2% Accepted
ArrayMathNumber Theory
Hard
25.6% Accepted
Hash TableMathString+2 more
Medium
80.2% Accepted
MathDynamic ProgrammingNumber Theory
Medium
72.1% Accepted
ArrayMathDynamic Programming+4 more
Medium
35.4% Accepted
ArrayMathGreedy+1 more
Hard
19.1% Accepted
ArrayMathBinary Search+3 more
Medium
27.3% Accepted
ArrayMathNumber Theory
Medium
28.9% Accepted
ArrayMathGreedy+1 more
Hard
30.4% Accepted
ArrayMathDynamic Programming+1 more
Hard
26.2% Accepted
ArrayMathDynamic Programming+3 more
Medium
37.5% Accepted
Hash TableMathString+2 more
Hard
18.3% Accepted
ArrayMathBinary Search+3 more
Medium
59.4% Accepted
ArrayMathDynamic Programming+1 more
Page 1 of 7
Ordered Set (73 questions)
Medium
39.0% Accepted
84.6% Freq
Solution
ArrayBinary SearchSegment Tree+1 more
Hard
55.3% Accepted
77.7% Freq
Solution
ArraySegment TreeLine Sweep+1 more
2021. Brightest Position on Street
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Medium
60.5% Accepted
75.8% Freq
ArraySortingPrefix Sum+1 more
Medium
57.0% Accepted
74.8% Freq
Solution
ArrayQueueSliding Window+3 more
Medium
49.4% Accepted
72.5% Freq
Solution
Hash TableDesignHeap (Priority Queue)+1 more
Medium
48.6% Accepted
71.2% Freq
Solution
Hash TableDesignHeap (Priority Queue)+2 more
Medium
52.8% Accepted
70.3% Freq
Solution
ArrayHash TableString+3 more
Hard
33.1% Accepted
69.5% Freq
Solution
ArrayBinary SearchDivide and Conquer+4 more
Hard
22.5% Accepted
69.3% Freq
ArrayTwo PointersBinary Search+4 more
Medium
35.5% Accepted
68.3% Freq
ArrayBinary SearchOrdered Set
Medium
39.4% Accepted
67.0% Freq
Solution
ArrayHash TableBinary Search+3 more
Hard
44.4% Accepted
66.5% Freq
Solution
DesignSegment TreeOrdered Set
Hard
44.5% Accepted
66.1% Freq
Solution
ArrayDivide and ConquerBinary Indexed Tree+5 more
Hard
32.3% Accepted
63.1% Freq
ArrayMathGeometry+2 more
Medium
34.3% Accepted
62.2% Freq
Solution
ArrayBinary SearchStack+2 more
Medium
44.6% Accepted
59.1% Freq
ArrayHash TableDepth-First Search+5 more
635. Design Log Storage System
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Medium
59.2% Accepted
58.2% Freq
Solution
Hash TableStringDesign+1 more
Medium
43.1% Accepted
58.1% Freq
Solution
DesignHeap (Priority Queue)Ordered Set
Hard
66.5% Accepted
58.0% Freq
Solution
Hash TableStackDesign+1 more
Hard
45.0% Accepted
57.6% Freq
Solution
ArrayHeap (Priority Queue)Simulation+1 more
Hard
35.1% Accepted
57.2% Freq
DesignSegment TreeOrdered Set
Hard
43.1% Accepted
54.5% Freq
Solution
ArrayBinary SearchDivide and Conquer+4 more
Medium
58.0% Accepted
54.4% Freq
Solution
ArrayQueueSliding Window+3 more
Hard
40.8% Accepted
54.4% Freq
Solution
ArrayBinary SearchDivide and Conquer+4 more
Hard
18.2% Accepted
52.3% Freq
MathStringBreadth-First Search+2 more
Hard
24.1% Accepted
51.7% Freq
Solution
ArraySliding WindowSorting+2 more
Medium
58.2% Accepted
51.6% Freq
Solution
ArrayBinary SearchDesign+2 more
Hard
57.5% Accepted
51.2% Freq
Solution
ArrayHash TableBinary Search+3 more
Medium
38.8% Accepted
49.0% Freq
Solution
ArrayMathBinary Search+4 more
Hard
37.7% Accepted
48.5% Freq
ArrayBinary SearchDivide and Conquer+4 more
Hard
62.8% Accepted
48.1% Freq
Solution
ArrayHash TableDesign+2 more
Hard
65.8% Accepted
48.1% Freq
Solution
ArrayBinary SearchDivide and Conquer+4 more
Medium
70.6% Accepted
46.0% Freq
Solution
Hash TableDesignHeap (Priority Queue)+1 more
Hard
71.0% Accepted
44.3% Freq
Solution
Binary SearchDesignSegment Tree+2 more
Hard
40.9% Accepted
40.3% Freq
Solution
ArrayDynamic ProgrammingStack+3 more
Hard
46.3% Accepted
40.2% Freq
ArrayBinary SearchDivide and Conquer+4 more
Hard
45.0% Accepted
39.4% Freq
Solution
ArrayBinary SearchMatrix+2 more
Hard
53.9% Accepted
38.6% Freq
Solution
ArrayGreedyHeap (Priority Queue)+1 more
Hard
38.4% Accepted
38.5% Freq
DesignQueueHeap (Priority Queue)+2 more
Medium
45.6% Accepted
35.1% Freq
Hash TableStringBinary Search+3 more
Hard
49.1% Accepted
34.6% Freq
ArrayUnion FindPrefix Sum+1 more
Medium
62.5% Accepted
32.8% Freq
Solution
ArrayBinary SearchDesign+3 more
Medium
31.8% Accepted
31.7% Freq
ArrayBinary SearchSorting+1 more
Medium
76.2% Accepted
29.1% Freq
ArrayHash TableString+2 more
Hard
59.7% Accepted
19.4% Freq
Solution
Hash TableBinary SearchUnion Find+3 more
683. K Empty Slots
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Hard
37.9% Accepted
Solution
ArrayBinary Indexed TreeSegment Tree+5 more
1902. Depth of BST Given Insertion Order
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Medium
42.4% Accepted
ArrayTreeBinary Search Tree+2 more
Medium
49.2% Accepted
ArrayBinary SearchDivide and Conquer+4 more
Hard
61.5% Accepted
DesignHeap (Priority Queue)Data Stream+1 more
Hard
55.5% Accepted
ArraySegment TreeOrdered Set
Hard
33.8% Accepted
ArrayStringSegment Tree+1 more
Medium
57.1% Accepted
Solution
Hash TableDesignHeap (Priority Queue)+1 more
Medium
54.3% Accepted
Hash TableBinary SearchUnion Find+5 more
2519. Count the Number of K-Big Indices
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Hard
53.4% Accepted
ArrayBinary SearchDivide and Conquer+4 more
Hard
15.7% Accepted
ArrayHash TableBreadth-First Search+2 more
Hard
31.1% Accepted
ArrayHash TableBinary Search+5 more
Hard
42.8% Accepted
ArrayHash TableOrdered Set
Medium
42.1% Accepted
ArrayHash TableHeap (Priority Queue)+1 more
3109. Find the Index of Permutation
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Medium
35.1% Accepted
ArrayBinary SearchDivide and Conquer+4 more
Hard
26.0% Accepted
ArrayGreedyGraph+1 more
Hard
16.2% Accepted
ArrayBinary Indexed TreeOrdered Set
3369. Design an Array Statistics Tracker
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Hard
34.7% Accepted
Hash TableBinary SearchDesign+4 more
Medium
67.9% Accepted
ArrayHash TableDesign+3 more
Hard
14.5% Accepted
ArrayHash TableLinked List+4 more
Hard
27.6% Accepted
ArrayTreeDepth-First Search+1 more
3672. Sum of Weighted Modes in Subarrays
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Medium
55.2% Accepted
ArrayHash TableSliding Window+2 more
Page 1 of 7
Monotonic Stack (68 questions)
Hard
66.1% Accepted
99.4% Freq
Solution
ArrayTwo PointersDynamic Programming+2 more
1762. Buildings With an Ocean View
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Medium
80.9% Accepted
87.8% Freq
Solution
ArrayStackMonotonic Stack
Hard
48.6% Accepted
80.9% Freq
Solution
ArrayStackMonotonic Stack
Hard
71.9% Accepted
79.6% Freq
ArrayStackMonotonic Stack
Medium
38.0% Accepted
79.2% Freq
Solution
ArrayDynamic ProgrammingStack+1 more
Medium
35.9% Accepted
76.5% Freq
Solution
StringStackGreedy+1 more
Hard
55.2% Accepted
76.3% Freq
Solution
ArrayDynamic ProgrammingStack+2 more
Medium
71.0% Accepted
75.5% Freq
Solution
ArrayDynamic ProgrammingStack+2 more
Medium
67.8% Accepted
74.2% Freq
Solution
ArrayStackMonotonic Stack
Medium
67.4% Accepted
73.4% Freq
Solution
ArrayStackMonotonic Stack
Medium
52.1% Accepted
69.0% Freq
Solution
StringStackGreedy+1 more
Medium
68.2% Accepted
66.9% Freq
Solution
StackDesignMonotonic Stack+1 more
Medium
55.8% Accepted
66.7% Freq
Solution
ArrayTwo PointersStack+1 more
Medium
51.4% Accepted
65.7% Freq
Solution
ArrayTwo PointersBinary Search+2 more
Hard
22.1% Accepted
65.5% Freq
ArrayStackSegment Tree+4 more
Medium
34.3% Accepted
62.2% Freq
Solution
ArrayBinary SearchStack+2 more
Medium
60.3% Accepted
60.0% Freq
Solution
ArrayStackMonotonic Stack
Medium
64.1% Accepted
60.0% Freq
Solution
ArrayStackGreedy+2 more
Hard
33.6% Accepted
57.2% Freq
ArrayTwo PointersStack+2 more
Medium
37.7% Accepted
54.8% Freq
Solution
ArrayTwo PointersStack+3 more
Medium
62.6% Accepted
53.8% Freq
StringStackGreedy+1 more
Hard
17.5% Accepted
53.8% Freq
ArrayBinary SearchDynamic Programming+4 more
Medium
25.5% Accepted
52.8% Freq
ArrayHash TableStack+2 more
Medium
83.8% Accepted
52.5% Freq
Solution
ArrayStackTree+3 more
Hard
54.5% Accepted
50.5% Freq
Solution
ArrayStackGreedy+2 more
Medium
54.2% Accepted
50.4% Freq
Solution
ArrayStackSorting+1 more
Medium
42.7% Accepted
43.5% Freq
ArrayStackMonotonic Stack
Medium
51.5% Accepted
42.5% Freq
Solution
ArrayStackTree+4 more
Hard
40.9% Accepted
40.3% Freq
Solution
ArrayDynamic ProgrammingStack+3 more
Hard
28.8% Accepted
40.3% Freq
Solution
ArrayStackMonotonic Stack+1 more
Medium
44.3% Accepted
39.8% Freq
Solution
ArrayStackGreedy+2 more
Hard
23.0% Accepted
39.4% Freq
ArrayMathStack+1 more
Hard
32.0% Accepted
38.5% Freq
ArrayBinary SearchStack+1 more
Hard
40.9% Accepted
35.3% Freq
ArrayBinary SearchStack+3 more
Hard
64.3% Accepted
32.9% Freq
Solution
ArrayTwo PointersBinary Search+2 more
Medium
36.5% Accepted
31.9% Freq
ArrayHash TableStack+2 more
Medium
52.3% Accepted
31.7% Freq
Solution
ArrayStackGreedy+1 more
Hard
52.2% Accepted
30.5% Freq
Solution
ArrayBinary SearchStack+4 more
Medium
63.2% Accepted
30.4% Freq
Solution
ArrayLinked ListStack+1 more
Medium
67.7% Accepted
28.9% Freq
ArrayDynamic ProgrammingStack+2 more
Medium
35.6% Accepted
25.8% Freq
ArrayStackMonotonic Stack
Medium
39.5% Accepted
25.1% Freq
ArrayStackMonotonic Stack+1 more
Medium
23.6% Accepted
22.9% Freq
ArrayLinked ListStack+1 more
Hard
40.8% Accepted
21.9% Freq
ArrayDynamic ProgrammingStack+2 more
Medium
57.9% Accepted
17.6% Freq
ArrayDynamic ProgrammingStack+2 more
Medium
74.7% Accepted
13.1% Freq
Solution
Linked ListStackRecursion+1 more
Hard
78.1% Accepted
13.0% Freq
Solution
ArrayDynamic ProgrammingStack+2 more
Medium
86.2% Accepted
11.9% Freq
Solution
ArrayDivide and ConquerStack+3 more
Medium
48.1% Accepted
ArrayStackMonotonic Stack
Hard
39.3% Accepted
StringStackGreedy+1 more
Medium
47.5% Accepted
ArrayStackMatrix+1 more
Hard
45.0% Accepted
ArrayStackUnion Find+1 more
Medium
36.6% Accepted
ArrayStackSorting+1 more
Hard
39.4% Accepted
Solution
ArrayDynamic ProgrammingStack+1 more
Hard
23.2% Accepted
ArrayDynamic ProgrammingStack+5 more
Hard
53.9% Accepted
Solution
ArrayMathStack+4 more
Medium
75.4% Accepted
Solution
ArrayStackMonotonic Stack
Medium
70.1% Accepted
ArrayStackSorting+1 more
3205. Maximum Array Hopping Score I
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Medium
77.4% Accepted
ArrayDynamic ProgrammingStack+2 more
Hard
50.3% Accepted
ArrayStackMatrix+1 more
Medium
62.2% Accepted
ArrayTwo PointersStack+3 more
Page 1 of 6
Segment Tree (68 questions)
Hard
64.8% Accepted
85.2% Freq
Solution
ArraySegment TreeEnumeration+1 more
Medium
39.0% Accepted
84.6% Freq
Solution
ArrayBinary SearchSegment Tree+1 more
Hard
55.3% Accepted
77.7% Freq
Solution
ArraySegment TreeLine Sweep+1 more
Hard
33.1% Accepted
69.5% Freq
Solution
ArrayBinary SearchDivide and Conquer+4 more
Hard
17.7% Accepted
68.3% Freq
ArrayBinary SearchBinary Indexed Tree+1 more
Hard
44.4% Accepted
66.5% Freq
Solution
DesignSegment TreeOrdered Set
Hard
44.5% Accepted
66.1% Freq
Solution
ArrayDivide and ConquerBinary Indexed Tree+5 more
Hard
22.1% Accepted
65.5% Freq
ArrayStackSegment Tree+4 more
Hard
35.1% Accepted
57.2% Freq
DesignSegment TreeOrdered Set
Hard
15.5% Accepted
57.1% Freq
ArrayMathSegment Tree+1 more
Hard
43.1% Accepted
54.5% Freq
Solution
ArrayBinary SearchDivide and Conquer+4 more
Hard
40.8% Accepted
54.4% Freq
Solution
ArrayBinary SearchDivide and Conquer+4 more
Hard
20.6% Accepted
52.1% Freq
ArrayBinary SearchSegment Tree+1 more
Medium
58.2% Accepted
51.6% Freq
Solution
ArrayBinary SearchDesign+2 more
Hard
37.7% Accepted
48.5% Freq
ArrayBinary SearchDivide and Conquer+4 more
Hard
65.8% Accepted
48.1% Freq
Solution
ArrayBinary SearchDivide and Conquer+4 more
Medium
74.4% Accepted
46.9% Freq
Solution
ArrayBinary Indexed TreeSegment Tree+1 more
Hard
71.0% Accepted
44.3% Freq
Solution
Binary SearchDesignSegment Tree+2 more
Hard
21.0% Accepted
43.6% Freq
ArrayDynamic ProgrammingSegment Tree
308. Range Sum Query 2D - Mutable
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Medium
45.1% Accepted
43.4% Freq
Solution
ArrayDesignBinary Indexed Tree+2 more
Hard
14.9% Accepted
42.4% Freq
ArrayDivide and ConquerDynamic Programming+1 more
Hard
21.2% Accepted
41.3% Freq
ArrayMathBinary Indexed Tree+3 more
Medium
50.8% Accepted
40.8% Freq
Solution
ArrayDynamic ProgrammingBinary Indexed Tree+1 more
Hard
46.3% Accepted
40.2% Freq
ArrayBinary SearchDivide and Conquer+4 more
Hard
41.0% Accepted
39.4% Freq
ArrayTreeDepth-First Search+2 more
Medium
70.1% Accepted
36.5% Freq
Solution
ArrayDynamic ProgrammingBinary Indexed Tree+1 more
Medium
62.5% Accepted
32.8% Freq
Solution
ArrayBinary SearchDesign+3 more
Medium
42.1% Accepted
30.9% Freq
Solution
ArrayDivide and ConquerDesign+2 more
Hard
52.2% Accepted
30.5% Freq
Solution
ArrayBinary SearchStack+4 more
Medium
20.9% Accepted
29.3% Freq
ArrayStringBinary Search+6 more
Medium
52.0% Accepted
26.8% Freq
ArrayHash TableDivide and Conquer+2 more
Hard
8.8% Accepted
20.2% Freq
ArrayHash TableDivide and Conquer+2 more
Hard
13.5% Accepted
13.2% Freq
ArrayGreedySegment Tree+1 more
Hard
44.2% Accepted
8.0% Freq
ArrayDivide and ConquerBinary Indexed Tree+1 more
683. K Empty Slots
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Hard
37.9% Accepted
Solution
ArrayBinary Indexed TreeSegment Tree+5 more
Hard
39.7% Accepted
ArrayBinary SearchDesign+2 more
Hard
40.6% Accepted
StringGreedyBinary Indexed Tree+1 more
Hard
46.5% Accepted
ArrayBinary SearchBit Manipulation+1 more
Hard
39.7% Accepted
ArrayDynamic ProgrammingSegment Tree+4 more
Medium
49.2% Accepted
ArrayBinary SearchDivide and Conquer+4 more
Medium
40.7% Accepted
ArrayHash TableBinary Search+2 more
Hard
55.5% Accepted
ArraySegment TreeOrdered Set
Hard
33.8% Accepted
ArrayStringSegment Tree+1 more
Hard
18.0% Accepted
Binary SearchDesignBinary Indexed Tree+1 more
Hard
25.7% Accepted
ArrayDivide and ConquerDynamic Programming+4 more
Medium
54.3% Accepted
Hash TableBinary SearchUnion Find+5 more
2519. Count the Number of K-Big Indices
💰 Premium
Hard
53.4% Accepted
ArrayBinary SearchDivide and Conquer+4 more
Medium
55.0% Accepted
ArrayBinary Indexed TreeSegment Tree
Hard
21.5% Accepted
ArrayDynamic ProgrammingBinary Indexed Tree+1 more
Hard
44.8% Accepted
ArrayBinary Indexed TreeSegment Tree
Hard
25.3% Accepted
ArrayBinary SearchDynamic Programming+2 more
Hard
29.8% Accepted
ArrayBinary Indexed TreeSegment Tree+1 more
3109. Find the Index of Permutation
💰 Premium
Medium
35.1% Accepted
ArrayBinary SearchDivide and Conquer+4 more
Hard
27.4% Accepted
ArrayBinary SearchDynamic Programming+3 more
Hard
30.4% Accepted
ArrayBinary SearchBit Manipulation+1 more
Hard
34.5% Accepted
ArrayBinary SearchBit Manipulation+1 more
Hard
18.8% Accepted
ArrayStringBinary Search+5 more
Medium
50.5% Accepted
ArrayMathBinary Indexed Tree+4 more
Hard
17.0% Accepted
ArrayStringBinary Search+1 more
Medium
53.1% Accepted
ArrayBinary SearchBinary Indexed Tree+1 more
Hard
18.3% Accepted
ArrayMathBinary Search+3 more
Page 1 of 6
Linked List (66 questions)
Medium
46.2% Accepted
98.8% Freq
Solution
Hash TableLinked ListDesign+1 more
Medium
47.2% Accepted
93.7% Freq
Solution
Linked ListMathRecursion
Hard
47.7% Accepted
86.6% Freq
Solution
Hash TableLinked ListDesign+1 more
Hard
44.0% Accepted
85.1% Freq
Solution
Hash TableLinked ListDesign+1 more
Hard
58.0% Accepted
84.0% Freq
Solution
Linked ListDivide and ConquerHeap (Priority Queue)+1 more
Medium
61.7% Accepted
79.6% Freq
Solution
Hash TableLinked List
Medium
38.4% Accepted
72.1% Freq
Solution
Linked List
Hard
64.5% Accepted
71.2% Freq
Solution
Linked ListRecursion
Medium
63.7% Accepted
70.2% Freq
Solution
Linked ListTwo PointersStack+1 more
Medium
53.2% Accepted
69.8% Freq
Solution
ArrayLinked ListDesign+1 more
Medium
62.0% Accepted
69.7% Freq
Solution
Linked ListDepth-First SearchDoubly-Linked List
Medium
63.1% Accepted
69.4% Freq
Solution
Linked ListTwo PointersDivide and Conquer+2 more
Medium
50.2% Accepted
68.8% Freq
Solution
Linked ListTwo Pointers
Hard
48.7% Accepted
66.0% Freq
Linked ListStringStack+3 more
Medium
58.0% Accepted
65.2% Freq
Hash TableLinked ListDesign+1 more
Medium
66.3% Accepted
64.5% Freq
Solution
Linked ListTreeDepth-First Search+2 more
Medium
65.6% Accepted
63.5% Freq
Solution
Linked ListStackTree+4 more
Medium
40.7% Accepted
63.1% Freq
Solution
Linked ListTwo Pointers
Medium
78.0% Accepted
59.2% Freq
Solution
ArrayLinked ListStack+3 more
Medium
29.5% Accepted
58.4% Freq
Solution
Linked ListDesign
Medium
43.6% Accepted
57.6% Freq
Hash TableLinked ListDesign+1 more
Medium
83.1% Accepted
57.3% Freq
Solution
Linked List
Medium
59.9% Accepted
57.2% Freq
Solution
Linked ListTwo Pointers
Medium
68.2% Accepted
55.4% Freq
Solution
Linked ListRecursion
Medium
69.6% Accepted
55.3% Freq
Solution
Linked ListStackTree+2 more
Medium
62.1% Accepted
54.6% Freq
Solution
Linked ListMathStack
Medium
56.5% Accepted
53.1% Freq
Solution
Linked ListTreeDepth-First Search+2 more
Medium
62.6% Accepted
53.1% Freq
Linked List
Medium
53.0% Accepted
52.0% Freq
Solution
Hash TableLinked List
Medium
70.4% Accepted
50.1% Freq
Solution
Linked List
Medium
56.4% Accepted
49.2% Freq
Solution
Hash TableLinked ListTwo Pointers
Medium
57.5% Accepted
46.9% Freq
Solution
Linked ListSorting
Medium
50.8% Accepted
46.4% Freq
Solution
Linked ListTwo Pointers
Medium
65.4% Accepted
43.5% Freq
Solution
Linked ListDivide and ConquerTree+2 more
Medium
69.4% Accepted
42.6% Freq
Solution
Linked List
Medium
82.7% Accepted
40.5% Freq
Solution
Linked List
Medium
68.9% Accepted
40.3% Freq
Solution
Linked ListTwo Pointers
Medium
59.5% Accepted
39.5% Freq
Solution
Linked ListTwo Pointers
Medium
57.5% Accepted
37.9% Freq
Solution
ArrayHash TableLinked List
Medium
81.6% Accepted
32.1% Freq
Solution
Linked ListTwo PointersStack
Medium
63.2% Accepted
30.4% Freq
Solution
ArrayLinked ListStack+1 more
Medium
64.4% Accepted
29.9% Freq
Solution
ArrayLinked ListDesign+1 more
Medium
56.6% Accepted
25.8% Freq
ArrayLinked ListDesign+2 more
Medium
61.2% Accepted
25.6% Freq
Solution
Linked ListMathStack
Medium
91.5% Accepted
23.3% Freq
Solution
Linked ListMathNumber Theory
Medium
23.6% Accepted
22.9% Freq
ArrayLinked ListStack+1 more
Medium
82.2% Accepted
19.5% Freq
Solution
ArrayLinked ListMatrix+1 more
Medium
89.7% Accepted
14.2% Freq
Solution
Linked ListSimulation
Medium
74.7% Accepted
13.1% Freq
Solution
Linked ListStackRecursion+1 more
Medium
64.4% Accepted
10.7% Freq
Solution
Linked ListMathReservoir Sampling+1 more
Medium
69.7% Accepted
5.0% Freq
Solution
ArrayHash TableLinked List
379. Design Phone Directory
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Medium
52.6% Accepted
Solution
ArrayHash TableLinked List+2 more
Medium
94.1% Accepted
Solution
Linked ListTwo PointersStack+1 more
Medium
51.9% Accepted
Solution
Linked ListTreeDepth-First Search+1 more
Medium
60.9% Accepted
Solution
Linked ListMathTwo Pointers
1756. Design Most Recently Used Queue
💰 Premium
Medium
77.7% Accepted
Solution
ArrayLinked ListDivide and Conquer+3 more
Medium
75.6% Accepted
Solution
Hash TableLinked List
Medium
67.0% Accepted
Linked ListTwo PointersSorting
Medium
81.7% Accepted
ArrayLinked ListDoubly-Linked List
Hard
14.5% Accepted
ArrayHash TableLinked List+4 more
Page 1 of 6
Bitmask (55 questions)
Hard
45.1% Accepted
79.6% Freq
Solution
ArrayDynamic ProgrammingBit Manipulation+1 more
465. Optimal Account Balancing
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Hard
50.1% Accepted
78.8% Freq
Solution
ArrayDynamic ProgrammingBacktracking+2 more
Hard
22.5% Accepted
69.3% Freq
ArrayTwo PointersBinary Search+4 more
Hard
26.4% Accepted
68.0% Freq
Solution
ArrayMathDynamic Programming+2 more
Hard
36.5% Accepted
67.8% Freq
ArrayHash TableMath+5 more
Hard
44.6% Accepted
63.9% Freq
ArrayDynamic ProgrammingBacktracking+2 more
Hard
65.6% Accepted
63.1% Freq
Solution
Dynamic ProgrammingBit ManipulationBreadth-First Search+2 more
Medium
38.3% Accepted
61.7% Freq
Solution
ArrayDynamic ProgrammingBacktracking+3 more
Medium
30.8% Accepted
58.7% Freq
MathDynamic ProgrammingBit Manipulation+3 more
Hard
50.8% Accepted
56.1% Freq
Solution
ArrayHash TableMath+4 more
Medium
25.8% Accepted
54.4% Freq
ArrayMathDynamic Programming+2 more
Medium
64.7% Accepted
53.6% Freq
Solution
ArrayDynamic ProgrammingBacktracking+2 more
Hard
20.7% Accepted
53.2% Freq
StringDynamic ProgrammingBit Manipulation+2 more
Hard
44.8% Accepted
52.7% Freq
Solution
ArrayStringDynamic Programming+2 more
Medium
41.3% Accepted
51.5% Freq
Solution
ArrayDynamic ProgrammingBacktracking+2 more
Hard
40.1% Accepted
50.9% Freq
ArrayDynamic ProgrammingBacktracking+2 more
Hard
52.9% Accepted
50.3% Freq
ArrayDynamic ProgrammingBit Manipulation+2 more
Hard
46.6% Accepted
50.3% Freq
Dynamic ProgrammingBit ManipulationTree+2 more
Hard
44.6% Accepted
46.6% Freq
ArrayDynamic ProgrammingBit Manipulation+3 more
Medium
62.0% Accepted
43.1% Freq
StringDynamic ProgrammingBacktracking+2 more
Medium
31.3% Accepted
42.4% Freq
ArrayDynamic ProgrammingBacktracking+3 more
Hard
33.2% Accepted
41.3% Freq
ArrayMathBit Manipulation+3 more
Hard
27.0% Accepted
41.1% Freq
ArrayDynamic ProgrammingBit Manipulation+4 more
Hard
50.4% Accepted
40.8% Freq
Solution
ArrayHash TableString+5 more
Medium
52.1% Accepted
40.6% Freq
Solution
ArrayDynamic ProgrammingBacktracking+3 more
Hard
49.1% Accepted
40.3% Freq
ArrayDynamic ProgrammingBit Manipulation+2 more
Hard
14.8% Accepted
40.3% Freq
ArrayDynamic ProgrammingBit Manipulation+2 more
351. Android Unlock Patterns
💰 Premium
Medium
53.5% Accepted
39.0% Freq
Solution
Dynamic ProgrammingBacktrackingBit Manipulation+1 more
Medium
34.2% Accepted
37.9% Freq
ArrayDynamic ProgrammingBacktracking+2 more
Hard
24.4% Accepted
37.8% Freq
ArrayDynamic ProgrammingBit Manipulation+1 more
Hard
62.0% Accepted
37.0% Freq
Solution
ArrayMathDynamic Programming+3 more
Hard
29.9% Accepted
36.4% Freq
Dynamic ProgrammingBit ManipulationGraph+1 more
Hard
42.5% Accepted
35.5% Freq
ArrayTwo PointersDynamic Programming+3 more
Hard
81.6% Accepted
35.4% Freq
Solution
ArrayHash TableString+5 more
Hard
54.0% Accepted
31.4% Freq
Solution
StringDynamic ProgrammingBit Manipulation+1 more
Medium
69.7% Accepted
31.2% Freq
Solution
ArrayDynamic ProgrammingBacktracking+2 more
Hard
55.3% Accepted
27.0% Freq
Solution
ArrayDynamic ProgrammingBit Manipulation+1 more
1066. Campus Bikes II
💰 Premium
Medium
55.8% Accepted
Solution
ArrayDynamic ProgrammingBacktracking+2 more
Hard
66.8% Accepted
Dynamic ProgrammingBit ManipulationTree+2 more
Hard
40.4% Accepted
Dynamic ProgrammingBit ManipulationMemoization+1 more
Hard
40.6% Accepted
ArrayDynamic ProgrammingBit Manipulation+1 more
Hard
57.9% Accepted
Solution
ArrayMathDynamic Programming+4 more
Hard
41.0% Accepted
ArrayDynamic ProgrammingBit Manipulation+2 more
Hard
49.9% Accepted
ArrayDynamic ProgrammingBit Manipulation+1 more
Medium
63.9% Accepted
ArrayDynamic ProgrammingBacktracking+2 more
Medium
43.2% Accepted
ArrayHash TableMath+5 more
Hard
50.3% Accepted
ArrayDynamic ProgrammingBit Manipulation+1 more
Medium
49.5% Accepted
ArrayDynamic ProgrammingBit Manipulation+1 more
Hard
50.9% Accepted
Dynamic ProgrammingBit ManipulationGraph+1 more
2403. Minimum Time to Kill All Monsters
💰 Premium
Hard
57.1% Accepted
ArrayDynamic ProgrammingBit Manipulation+1 more
Medium
29.0% Accepted
ArrayDynamic ProgrammingBit Manipulation+1 more
Medium
72.1% Accepted
ArrayMathDynamic Programming+4 more
Hard
26.2% Accepted
ArrayMathDynamic Programming+3 more
Hard
29.1% Accepted
ArrayDynamic ProgrammingBit Manipulation+3 more
Hard
29.8% Accepted
ArrayDynamic ProgrammingBit Manipulation+1 more
Page 1 of 5
Combinatorics (54 questions)
Medium
55.8% Accepted
90.7% Freq
Solution
MathCombinatoricsEnumeration
Hard
35.6% Accepted
82.3% Freq
ArrayMathCombinatorics
Hard
49.2% Accepted
79.5% Freq
Solution
MathStringDynamic Programming+1 more
Medium
66.2% Accepted
73.4% Freq
Solution
MathDynamic ProgrammingCombinatorics
Hard
58.3% Accepted
71.0% Freq
Solution
MathCombinatorics
Medium
82.0% Accepted
58.6% Freq
Solution
ArrayMathSimulation+1 more
Hard
37.0% Accepted
48.8% Freq
MathDynamic ProgrammingBit Manipulation+2 more
Medium
39.3% Accepted
48.8% Freq
ArrayMathBrainteaser+1 more
Medium
20.9% Accepted
43.1% Freq
ArrayMathDynamic Programming+2 more
Hard
60.0% Accepted
42.5% Freq
Solution
MathDynamic ProgrammingCombinatorics
Medium
30.9% Accepted
40.3% Freq
MathBinary SearchCombinatorics+1 more
Hard
69.5% Accepted
40.3% Freq
Solution
Hash TableMathCombinatorics+1 more
Hard
47.2% Accepted
39.4% Freq
ArrayMathDynamic Programming+2 more
Hard
44.3% Accepted
38.5% Freq
ArrayMathDynamic Programming+1 more
Hard
62.0% Accepted
37.0% Freq
Solution
ArrayMathDynamic Programming+3 more
Hard
13.5% Accepted
35.5% Freq
MathStringCombinatorics+1 more
Medium
50.9% Accepted
32.7% Freq
Solution
ArrayHash TableMath+4 more
Medium
55.0% Accepted
30.3% Freq
MathStringDynamic Programming+1 more
Medium
53.7% Accepted
30.1% Freq
ArrayMathSimulation+2 more
Hard
47.0% Accepted
6.1% Freq
ArrayMathDynamic Programming+3 more
634. Find the Derangement of An Array
💰 Premium
Medium
41.7% Accepted
Solution
MathDynamic ProgrammingCombinatorics
Hard
64.9% Accepted
Solution
MathDynamic ProgrammingCombinatorics
Hard
60.6% Accepted
ArrayMathDynamic Programming+3 more
Hard
53.8% Accepted
Solution
ArrayMathDivide and Conquer+7 more
Medium
45.2% Accepted
MathDynamic ProgrammingCombinatorics
Medium
79.1% Accepted
Solution
MathDynamic ProgrammingCombinatorics
Hard
53.7% Accepted
ArrayMathDynamic Programming+2 more
Hard
50.6% Accepted
MathStringCombinatorics
Hard
58.3% Accepted
MathDynamic ProgrammingCombinatorics
Hard
49.5% Accepted
MathDynamic ProgrammingTree+3 more
Hard
56.9% Accepted
Solution
MathDynamic ProgrammingCombinatorics+1 more
Medium
36.5% Accepted
MathDynamic ProgrammingCombinatorics
Medium
48.7% Accepted
Hash TableMathString+2 more
2638. Count the Number of K-Free Subsets
💰 Premium
Medium
47.0% Accepted
ArrayMathDynamic Programming+2 more
Hard
30.0% Accepted
Hash TableMathString+2 more
Hard
58.4% Accepted
MathDynamic ProgrammingCombinatorics
Hard
57.2% Accepted
Solution
MathCombinatorics
Medium
56.4% Accepted
MathDynamic ProgrammingCombinatorics
Hard
48.2% Accepted
ArrayHash TableMath+1 more
Hard
19.1% Accepted
ArrayMathBinary Search+3 more
Medium
47.4% Accepted
ArrayMathDynamic Programming+1 more
Hard
23.7% Accepted
ArrayMathDynamic Programming+2 more
Hard
34.1% Accepted
MathDynamic ProgrammingCombinatorics
Hard
26.4% Accepted
MathStringDynamic Programming+1 more
Hard
18.4% Accepted
ArrayHash TableMath+1 more
Hard
12.2% Accepted
ArrayHash TableMath+1 more
Hard
34.1% Accepted
MathCombinatorics
Hard
12.9% Accepted
Hash TableMathString+2 more
Hard
20.7% Accepted
MathDynamic ProgrammingBit Manipulation+1 more
Page 1 of 5
Trie (54 questions)
588. Design In-Memory File System
💰 Premium
Hard
48.3% Accepted
85.8% Freq
Solution
Hash TableStringDesign+2 more
Medium
65.1% Accepted
79.8% Freq
Solution
ArrayStringBinary Search+3 more
Hard
46.0% Accepted
78.3% Freq
Solution
Trie
Medium
59.7% Accepted
78.1% Freq
Solution
ArrayHash TableString+5 more
1166. Design File System
💰 Premium
Medium
65.0% Accepted
77.8% Freq
Solution
Hash TableStringDesign+1 more
642. Design Search Autocomplete System
💰 Premium
Hard
49.6% Accepted
76.8% Freq
Solution
StringDepth-First SearchDesign+4 more
Medium
76.1% Accepted
75.4% Freq
Solution
Depth-First SearchTrie
Medium
78.6% Accepted
74.8% Freq
Solution
ArrayStringDepth-First Search+1 more
Medium
48.8% Accepted
73.7% Freq
Solution
ArrayHash TableString+3 more
Medium
56.7% Accepted
72.1% Freq
Solution
ArrayHash TableString+1 more
Hard
37.8% Accepted
71.3% Freq
Solution
ArrayStringBacktracking+2 more
Hard
54.5% Accepted
70.6% Freq
Solution
ArrayHash TableString+4 more
Hard
78.0% Accepted
69.0% Freq
Solution
ArrayHash TableString+2 more
Hard
49.6% Accepted
67.8% Freq
Solution
ArrayStringDynamic Programming+3 more
Medium
50.6% Accepted
65.5% Freq
Solution
ArrayHash TableString+4 more
616. Add Bold Tag in String
💰 Premium
Medium
51.2% Accepted
62.3% Freq
Solution
ArrayHash TableString+2 more
Medium
68.7% Accepted
60.7% Freq
Solution
Hash TableStringDesign+1 more
Medium
53.3% Accepted
60.3% Freq
Solution
ArrayHash TableBit Manipulation+1 more
Medium
47.7% Accepted
60.1% Freq
Solution
StringDepth-First SearchDesign+1 more
Medium
64.7% Accepted
57.1% Freq
StringTrieRolling Hash+2 more
1804. Implement Trie II (Prefix Tree)
💰 Premium
Medium
63.1% Accepted
56.1% Freq
Solution
Hash TableStringDesign+1 more
Medium
49.4% Accepted
52.1% Freq
ArrayHash TableString+1 more
Hard
37.6% Accepted
50.3% Freq
ArrayHash TableString+2 more
Hard
51.5% Accepted
49.0% Freq
Solution
ArrayStringDesign+2 more
Hard
36.6% Accepted
47.3% Freq
Solution
ArrayHash TableString+1 more
Medium
57.2% Accepted
46.1% Freq
Solution
Hash TableStringDepth-First Search+2 more
Medium
64.5% Accepted
44.5% Freq
ArrayTwo PointersString+2 more
Hard
45.7% Accepted
43.6% Freq
ArrayHash TableBit Manipulation+2 more
Medium
68.5% Accepted
39.0% Freq
Solution
ArrayHash TableString+1 more
Medium
57.2% Accepted
38.7% Freq
Solution
ArrayHash TableString+2 more
Hard
56.9% Accepted
38.3% Freq
ArrayBit ManipulationTrie
Medium
60.7% Accepted
35.7% Freq
Solution
ArrayHash TableString+1 more
Medium
54.0% Accepted
31.8% Freq
Solution
ArrayHash TableString+2 more
Hard
27.7% Accepted
29.4% Freq
ArrayStringTrie+3 more
Medium
20.9% Accepted
29.3% Freq
ArrayStringBinary Search+6 more
Hard
60.8% Accepted
27.6% Freq
Solution
ArrayStringTrie+1 more
Hard
40.6% Accepted
23.0% Freq
Solution
ArrayHash TableString+2 more
Hard
47.5% Accepted
Solution
ArrayHash TableString+2 more
Hard
46.0% Accepted
ArrayBit ManipulationTrie
1858. Longest Word With All Prefixes
💰 Premium
Medium
71.9% Accepted
Solution
ArrayStringDepth-First Search+1 more
Medium
54.5% Accepted
ArrayHash TableTrie+3 more
Hard
50.8% Accepted
TreeDepth-First SearchGraph+1 more
Hard
31.6% Accepted
ArrayHash TableBit Manipulation+2 more
Hard
26.0% Accepted
ArrayStringDynamic Programming+3 more
Hard
22.1% Accepted
ArrayStringTrie
Page 1 of 5
No Tag (52 questions)
2759. Convert JSON String to Object
💰 Premium
Hard
60.9% Accepted
74.9% Freq
Solution
Medium
28.7% Accepted
55.2% Freq
Solution
Medium
78.1% Accepted
25.8% Freq
Solution
Hard
60.9% Accepted
Solution
Medium
91.0% Accepted
Solution
Medium
90.3% Accepted
Solution
Medium
74.5% Accepted
Solution
Medium
41.0% Accepted
Hard
17.0% Accepted
Hard
35.7% Accepted
Page 1 of 5
Divide and Conquer (51 questions)
Hard
45.1% Accepted
94.0% Freq
Solution
ArrayBinary SearchDivide and Conquer
Medium
68.5% Accepted
88.7% Freq
Solution
ArrayDivide and ConquerSorting+2 more
Medium
52.6% Accepted
88.6% Freq
Solution
ArrayDivide and ConquerDynamic Programming
Medium
65.1% Accepted
86.8% Freq
Solution
ArrayHash TableDivide and Conquer+5 more
Hard
58.0% Accepted
84.0% Freq
Solution
Linked ListDivide and ConquerHeap (Priority Queue)+1 more
Medium
68.4% Accepted
73.7% Freq
Solution
ArrayMathDivide and Conquer+4 more
Medium
77.7% Accepted
71.1% Freq
Solution
ArrayDivide and ConquerTree+1 more
Medium
56.1% Accepted
70.0% Freq
Solution
ArrayDivide and ConquerSorting+5 more
Hard
33.1% Accepted
69.5% Freq
Solution
ArrayBinary SearchDivide and Conquer+4 more
Medium
63.1% Accepted
69.4% Freq
Solution
Linked ListTwo PointersDivide and Conquer+2 more
Medium
56.2% Accepted
69.3% Freq
Solution
ArrayBinary SearchDivide and Conquer+1 more
Hard
49.2% Accepted
67.8% Freq
ArrayDivide and Conquer
Hard
44.5% Accepted
66.1% Freq
Solution
ArrayDivide and ConquerBinary Indexed Tree+5 more
1274. Number of Ships in a Rectangle
💰 Premium
Hard
68.8% Accepted
61.9% Freq
Solution
ArrayDivide and ConquerInteractive
Medium
45.7% Accepted
60.1% Freq
Solution
Hash TableStringDivide and Conquer+1 more
Medium
67.8% Accepted
59.2% Freq
Solution
ArrayHash TableDivide and Conquer+2 more
Medium
36.3% Accepted
58.0% Freq
ArrayDivide and ConquerGreedy+2 more
Medium
48.6% Accepted
55.1% Freq
Solution
ArrayDivide and ConquerDynamic Programming+2 more
Hard
43.1% Accepted
54.5% Freq
Solution
ArrayBinary SearchDivide and Conquer+4 more
Hard
40.8% Accepted
54.4% Freq
Solution
ArrayBinary SearchDivide and Conquer+4 more
Medium
70.4% Accepted
50.9% Freq
ArrayDivide and ConquerMatrix
Hard
37.7% Accepted
48.5% Freq
ArrayBinary SearchDivide and Conquer+4 more
Hard
65.8% Accepted
48.1% Freq
Solution
ArrayBinary SearchDivide and Conquer+4 more
Medium
67.5% Accepted
45.8% Freq
Solution
ArrayMathDivide and Conquer
Medium
65.4% Accepted
43.5% Freq
Solution
Linked ListDivide and ConquerTree+2 more
Hard
14.9% Accepted
42.4% Freq
ArrayDivide and ConquerDynamic Programming+1 more
Hard
20.4% Accepted
42.4% Freq
ArrayHash TableBinary Search+3 more
Medium
67.3% Accepted
40.6% Freq
Solution
ArrayHash TableDivide and Conquer+2 more
Hard
46.3% Accepted
40.2% Freq
ArrayBinary SearchDivide and Conquer+4 more
Medium
78.0% Accepted
39.0% Freq
Solution
ArrayHash TableDivide and Conquer+2 more
Medium
84.7% Accepted
31.1% Freq
Solution
Divide and ConquerGreedyTree+3 more
Medium
42.1% Accepted
30.9% Freq
Solution
ArrayDivide and ConquerDesign+2 more
Medium
63.8% Accepted
28.5% Freq
ArrayDivide and ConquerBit Manipulation+5 more
Medium
52.0% Accepted
26.8% Freq
ArrayHash TableDivide and Conquer+2 more
Hard
8.8% Accepted
20.2% Freq
ArrayHash TableDivide and Conquer+2 more
Medium
86.2% Accepted
11.9% Freq
Solution
ArrayDivide and ConquerStack+3 more
Hard
44.2% Accepted
8.0% Freq
ArrayDivide and ConquerBinary Indexed Tree+1 more
Medium
67.5% Accepted
1.8% Freq
ArrayDivide and ConquerSimulation
Medium
51.6% Accepted
Divide and ConquerTree
Hard
53.8% Accepted
Solution
ArrayMathDivide and Conquer+7 more
1756. Design Most Recently Used Queue
💰 Premium
Medium
77.7% Accepted
Solution
ArrayLinked ListDivide and Conquer+3 more
Medium
47.3% Accepted
ArrayStringDivide and Conquer+3 more
Medium
49.2% Accepted
ArrayBinary SearchDivide and Conquer+4 more
Medium
46.5% Accepted
ArrayStringDivide and Conquer+4 more
Hard
25.7% Accepted
ArrayDivide and ConquerDynamic Programming+4 more
2519. Count the Number of K-Big Indices
💰 Premium
Hard
53.4% Accepted
ArrayBinary SearchDivide and Conquer+4 more
2792. Count Nodes That Are Great Enough
💰 Premium
Hard
56.2% Accepted
Divide and ConquerTreeDepth-First Search+1 more
3109. Find the Index of Permutation
💰 Premium
Medium
35.1% Accepted
ArrayBinary SearchDivide and Conquer+4 more
Hard
28.3% Accepted
ArrayDivide and Conquer
Page 1 of 5
Binary Indexed Tree (43 questions)
Hard
33.1% Accepted
69.5% Freq
Solution
ArrayBinary SearchDivide and Conquer+4 more
Hard
17.7% Accepted
68.3% Freq
ArrayBinary SearchBinary Indexed Tree+1 more
Hard
44.5% Accepted
66.1% Freq
Solution
ArrayDivide and ConquerBinary Indexed Tree+5 more
Hard
52.4% Accepted
56.1% Freq
Two PointersStringGreedy+1 more
Hard
43.1% Accepted
54.5% Freq
Solution
ArrayBinary SearchDivide and Conquer+4 more
Hard
40.8% Accepted
54.4% Freq
Solution
ArrayBinary SearchDivide and Conquer+4 more
Hard
37.7% Accepted
48.5% Freq
ArrayBinary SearchDivide and Conquer+4 more
Hard
65.8% Accepted
48.1% Freq
Solution
ArrayBinary SearchDivide and Conquer+4 more
Medium
74.4% Accepted
46.9% Freq
Solution
ArrayBinary Indexed TreeSegment Tree+1 more
Medium
36.6% Accepted
46.6% Freq
ArrayHash TableBinary Search+2 more
308. Range Sum Query 2D - Mutable
💰 Premium
Medium
45.1% Accepted
43.4% Freq
Solution
ArrayDesignBinary Indexed Tree+2 more
Hard
34.4% Accepted
42.4% Freq
ArrayDynamic ProgrammingBinary Indexed Tree+2 more
Hard
21.2% Accepted
41.3% Freq
ArrayMathBinary Indexed Tree+3 more
Medium
50.8% Accepted
40.8% Freq
Solution
ArrayDynamic ProgrammingBinary Indexed Tree+1 more
Hard
46.3% Accepted
40.2% Freq
ArrayBinary SearchDivide and Conquer+4 more
Hard
41.0% Accepted
39.4% Freq
ArrayTreeDepth-First Search+2 more
Medium
70.1% Accepted
36.5% Freq
Solution
ArrayDynamic ProgrammingBinary Indexed Tree+1 more
Medium
42.1% Accepted
30.9% Freq
Solution
ArrayDivide and ConquerDesign+2 more
Hard
52.2% Accepted
30.5% Freq
Solution
ArrayBinary SearchStack+4 more
Hard
44.2% Accepted
8.0% Freq
ArrayDivide and ConquerBinary Indexed Tree+1 more
683. K Empty Slots
💰 Premium
Hard
37.9% Accepted
Solution
ArrayBinary Indexed TreeSegment Tree+5 more
Hard
39.7% Accepted
ArrayBinary SearchDesign+2 more
Medium
84.7% Accepted
ArrayBinary Indexed TreeSimulation
Hard
40.6% Accepted
StringGreedyBinary Indexed Tree+1 more
Hard
62.6% Accepted
Solution
ArrayBinary SearchBinary Indexed Tree
Medium
49.2% Accepted
ArrayBinary SearchDivide and Conquer+4 more
Hard
18.0% Accepted
Binary SearchDesignBinary Indexed Tree+1 more
Hard
25.7% Accepted
ArrayDivide and ConquerDynamic Programming+4 more
Medium
54.3% Accepted
Hash TableBinary SearchUnion Find+5 more
2519. Count the Number of K-Big Indices
💰 Premium
Hard
53.4% Accepted
ArrayBinary SearchDivide and Conquer+4 more
Medium
55.0% Accepted
ArrayBinary Indexed TreeSegment Tree
Hard
21.5% Accepted
ArrayDynamic ProgrammingBinary Indexed Tree+1 more
Hard
44.8% Accepted
ArrayBinary Indexed TreeSegment Tree
Hard
25.3% Accepted
ArrayBinary SearchDynamic Programming+2 more
Hard
45.1% Accepted
ArrayHash TableMath+4 more
Hard
29.8% Accepted
ArrayBinary Indexed TreeSegment Tree+1 more
3109. Find the Index of Permutation
💰 Premium
Medium
35.1% Accepted
ArrayBinary SearchDivide and Conquer+4 more
Hard
16.2% Accepted
ArrayBinary Indexed TreeOrdered Set
Medium
50.5% Accepted
ArrayMathBinary Indexed Tree+4 more
Medium
53.1% Accepted
ArrayBinary SearchBinary Indexed Tree+1 more
Page 1 of 4
Queue (43 questions)
Hard
48.1% Accepted
85.4% Freq
Solution
ArrayQueueSliding Window+2 more
Medium
61.0% Accepted
82.1% Freq
Solution
Dynamic ProgrammingQueueSimulation
362. Design Hit Counter
💰 Premium
Medium
69.3% Accepted
81.6% Freq
Solution
ArrayBinary SearchDesign+2 more
Medium
57.0% Accepted
74.8% Freq
Solution
ArrayQueueSliding Window+3 more
353. Design Snake Game
💰 Premium
Medium
39.9% Accepted
72.6% Freq
Solution
ArrayHash TableDesign+2 more
Medium
53.2% Accepted
69.8% Freq
Solution
ArrayLinked ListDesign+1 more
Medium
39.4% Accepted
67.0% Freq
Solution
ArrayHash TableBinary Search+3 more
Hard
22.1% Accepted
65.5% Freq
ArrayStackSegment Tree+4 more
Medium
65.4% Accepted
64.6% Freq
Solution
StackTreeDepth-First Search+3 more
1429. First Unique Number
💰 Premium
Medium
56.5% Accepted
63.5% Freq
Solution
ArrayHash TableDesign+2 more
Medium
37.0% Accepted
61.7% Freq
ArrayDynamic ProgrammingQueue+3 more
Medium
82.1% Accepted
60.1% Freq
Solution
ArrayMathRecursion+2 more
Hard
69.3% Accepted
57.3% Freq
Solution
ArrayQueueSliding Window+1 more
Hard
62.2% Accepted
55.3% Freq
Solution
ArrayBit ManipulationQueue+2 more
Medium
48.6% Accepted
55.1% Freq
Solution
ArrayDivide and ConquerDynamic Programming+2 more
Medium
83.4% Accepted
54.6% Freq
Solution
ArrayQueueSorting+1 more
Medium
58.0% Accepted
54.4% Freq
Solution
ArrayQueueSliding Window+3 more
Hard
17.5% Accepted
53.8% Freq
ArrayBinary SearchDynamic Programming+4 more
Hard
32.4% Accepted
53.0% Freq
Solution
ArrayBinary SearchQueue+4 more
Medium
20.2% Accepted
52.7% Freq
ArrayMathQueue+3 more
Hard
50.3% Accepted
46.2% Freq
Solution
ArrayTwo PointersBinary Search+4 more
Hard
62.0% Accepted
38.5% Freq
Solution
StringStackGreedy+1 more
Hard
38.4% Accepted
38.5% Freq
DesignQueueHeap (Priority Queue)+2 more
Medium
46.2% Accepted
36.1% Freq
Solution
ArrayDynamic ProgrammingQueue+2 more
Medium
64.4% Accepted
29.9% Freq
Solution
ArrayLinked ListDesign+1 more
Medium
56.6% Accepted
25.8% Freq
ArrayLinked ListDesign+2 more
Hard
56.3% Accepted
24.8% Freq
Solution
ArrayDynamic ProgrammingQueue+3 more
Medium
80.5% Accepted
22.7% Freq
Solution
ArrayBit ManipulationQueue+2 more
379. Design Phone Directory
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Medium
52.6% Accepted
Solution
ArrayHash TableLinked List+2 more
683. K Empty Slots
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Hard
37.9% Accepted
Solution
ArrayBinary Indexed TreeSegment Tree+5 more
Hard
39.7% Accepted
ArrayDynamic ProgrammingSegment Tree+4 more
Hard
37.5% Accepted
ArrayBinary SearchQueue+4 more
Hard
25.7% Accepted
ArrayDivide and ConquerDynamic Programming+4 more
Medium
50.2% Accepted
Hash TableDesignQueue+2 more
Hard
34.0% Accepted
ArrayBinary SearchGreedy+3 more
Medium
47.9% Accepted
ArrayDynamic ProgrammingQueue+2 more
Hard
46.2% Accepted
ArrayDynamic ProgrammingQueue+2 more
Hard
27.4% Accepted
ArrayBinary SearchDynamic Programming+3 more
3369. Design an Array Statistics Tracker
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Hard
34.7% Accepted
Hash TableBinary SearchDesign+4 more
Page 1 of 4
Recursion (39 questions)
Medium
47.2% Accepted
93.7% Freq
Solution
Linked ListMathRecursion
Hard
65.2% Accepted
90.1% Freq
Solution
StringRecursion
Medium
61.8% Accepted
83.7% Freq
Solution
StringStackRecursion
Hard
46.2% Accepted
80.2% Freq
Solution
MathStringStack+1 more
Hard
29.9% Accepted
80.1% Freq
Solution
StringDynamic ProgrammingRecursion
Hard
34.7% Accepted
79.5% Freq
Solution
MathStringRecursion
Hard
48.6% Accepted
75.5% Freq
Solution
MathBit ManipulationRecursion
Hard
64.5% Accepted
71.2% Freq
Solution
Linked ListRecursion
Medium
63.7% Accepted
70.2% Freq
Solution
Linked ListTwo PointersStack+1 more
Hard
69.8% Accepted
68.4% Freq
Solution
StringStackRecursion
Hard
30.8% Accepted
67.9% Freq
Solution
StringDynamic ProgrammingGreedy+1 more
Hard
53.2% Accepted
64.3% Freq
Solution
Hash TableStringStack+1 more
Hard
36.7% Accepted
63.7% Freq
Solution
MathDynamic ProgrammingRecursion
Medium
82.1% Accepted
60.1% Freq
Solution
ArrayMathRecursion+2 more
247. Strobogrammatic Number II
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Medium
53.4% Accepted
58.5% Freq
Solution
ArrayStringRecursion
Medium
47.8% Accepted
57.4% Freq
Solution
MathBit ManipulationRecursion
Medium
72.8% Accepted
56.7% Freq
Solution
MathStringDynamic Programming+2 more
Medium
56.0% Accepted
56.0% Freq
Solution
ArrayMathDynamic Programming+2 more
Hard
49.5% Accepted
55.8% Freq
Solution
Hash TableMathString+2 more
Medium
68.2% Accepted
55.4% Freq
Solution
Linked ListRecursion
Medium
82.7% Accepted
48.4% Freq
Solution
Dynamic ProgrammingTreeRecursion+2 more
Medium
35.0% Accepted
46.7% Freq
ArrayBit ManipulationRecursion+1 more
439. Ternary Expression Parser
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Medium
62.3% Accepted
43.6% Freq
Solution
StringStackRecursion
Medium
51.5% Accepted
42.5% Freq
Solution
ArrayStackTree+4 more
Medium
70.1% Accepted
38.3% Freq
Solution
StringRecursionSimulation
Medium
29.3% Accepted
37.9% Freq
MathRecursion
Medium
74.7% Accepted
13.1% Freq
Solution
Linked ListStackRecursion+1 more
Medium
94.1% Accepted
Solution
Linked ListTwo PointersStack+1 more
Hard
34.8% Accepted
MathRecursionNumber Theory
Medium
36.8% Accepted
MathGreedyRecursion
Page 1 of 4
Memoization (39 questions)
Hard
56.6% Accepted
78.7% Freq
Solution
ArrayDynamic ProgrammingMemoization+1 more
Hard
48.9% Accepted
77.7% Freq
Solution
ArrayDynamic ProgrammingMemoization
Medium
52.9% Accepted
77.6% Freq
Solution
StringDynamic ProgrammingGreedy+1 more
Hard
73.2% Accepted
75.8% Freq
Solution
Dynamic ProgrammingMemoization
Medium
48.8% Accepted
73.7% Freq
Solution
ArrayHash TableString+3 more
Hard
57.4% Accepted
71.2% Freq
Solution
Hash TableDynamic ProgrammingGraph+3 more
Hard
55.9% Accepted
70.8% Freq
Solution
ArrayDynamic ProgrammingDepth-First Search+5 more
Hard
54.5% Accepted
70.6% Freq
Solution
ArrayHash TableString+4 more
Hard
30.7% Accepted
64.1% Freq
StringDynamic ProgrammingStack+2 more
Medium
38.3% Accepted
61.7% Freq
Solution
ArrayDynamic ProgrammingBacktracking+3 more
Medium
30.8% Accepted
58.7% Freq
MathDynamic ProgrammingBit Manipulation+3 more
Hard
34.1% Accepted
57.8% Freq
Solution
MathDynamic ProgrammingGraph+3 more
Medium
72.8% Accepted
56.7% Freq
Solution
MathStringDynamic Programming+2 more
Medium
71.1% Accepted
53.0% Freq
Dynamic ProgrammingMemoizationSorting
Hard
37.0% Accepted
48.8% Freq
MathDynamic ProgrammingBit Manipulation+2 more
Medium
82.7% Accepted
48.4% Freq
Solution
Dynamic ProgrammingTreeRecursion+2 more
Hard
73.4% Accepted
44.4% Freq
Solution
ArrayDynamic ProgrammingBacktracking+3 more
Hard
50.4% Accepted
40.8% Freq
Solution
ArrayHash TableString+5 more
Medium
52.1% Accepted
40.6% Freq
Solution
ArrayDynamic ProgrammingBacktracking+3 more
Medium
48.1% Accepted
39.0% Freq
Dynamic ProgrammingBreadth-First SearchMemoization
Hard
61.5% Accepted
35.1% Freq
Solution
ArrayDynamic ProgrammingMemoization+2 more
Hard
36.0% Accepted
33.0% Freq
ArrayDynamic ProgrammingBit Manipulation+3 more
Hard
35.9% Accepted
32.1% Freq
Dynamic ProgrammingMemoization
Medium
36.9% Accepted
31.6% Freq
Dynamic ProgrammingGreedyBit Manipulation+1 more
Hard
57.5% Accepted
25.8% Freq
Solution
ArrayDynamic ProgrammingDepth-First Search+5 more
Hard
48.6% Accepted
Solution
MathDynamic ProgrammingMemoization
Hard
53.8% Accepted
Solution
ArrayMathDivide and Conquer+7 more
Hard
64.9% Accepted
Solution
ArrayDynamic ProgrammingMemoization
Hard
73.2% Accepted
Solution
Dynamic ProgrammingBit ManipulationMemoization
Hard
40.4% Accepted
Dynamic ProgrammingBit ManipulationMemoization+1 more
Hard
41.0% Accepted
ArrayDynamic ProgrammingBit Manipulation+2 more
Hard
33.6% Accepted
ArrayHash TableMath+4 more
Hard
52.3% Accepted
ArrayDynamic ProgrammingMemoization
Hard
57.9% Accepted
Dynamic ProgrammingMemoization
Hard
31.1% Accepted
ArrayHash TableBinary Search+5 more
Hard
29.8% Accepted
Dynamic ProgrammingGraphMemoization
Medium
33.6% Accepted
ArrayDynamic ProgrammingMemoization
Page 1 of 4
Shortest Path (38 questions)
Medium
55.5% Accepted
74.7% Freq
Solution
ArrayGraphHeap (Priority Queue)+2 more
Medium
68.1% Accepted
71.0% Freq
Solution
ArrayGraphHeap (Priority Queue)+2 more
Medium
63.6% Accepted
68.0% Freq
Solution
ArrayStringDepth-First Search+4 more
Hard
39.5% Accepted
67.3% Freq
GraphShortest Path
2714. Find Shortest Path with K Hops
💰 Premium
Hard
68.8% Accepted
65.5% Freq
GraphHeap (Priority Queue)Shortest Path
Medium
41.0% Accepted
64.5% Freq
Solution
Dynamic ProgrammingDepth-First SearchBreadth-First Search+3 more
Hard
70.8% Accepted
61.1% Freq
Solution
ArrayBreadth-First SearchGraph+3 more
Medium
58.9% Accepted
55.2% Freq
Solution
Depth-First SearchBreadth-First SearchGraph+2 more
Medium
41.8% Accepted
53.2% Freq
ArrayGraphHeap (Priority Queue)+1 more
Hard
29.9% Accepted
45.0% Freq
ArrayBinary SearchDynamic Programming+4 more
Medium
71.5% Accepted
44.8% Freq
Solution
Dynamic ProgrammingGraphShortest Path
Hard
55.8% Accepted
42.5% Freq
Solution
GraphHeap (Priority Queue)Shortest Path
505. The Maze II
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Medium
54.5% Accepted
42.4% Freq
Solution
ArrayDepth-First SearchBreadth-First Search+4 more
Hard
46.3% Accepted
41.5% Freq
Depth-First SearchBreadth-First SearchGraph+2 more
499. The Maze III
💰 Premium
Hard
51.0% Accepted
41.3% Freq
Solution
ArrayStringDepth-First Search+5 more
Medium
28.8% Accepted
41.3% Freq
MathGraphHeap (Priority Queue)+2 more
Hard
27.0% Accepted
41.1% Freq
ArrayDynamic ProgrammingBit Manipulation+4 more
Medium
36.6% Accepted
40.6% Freq
ArrayGraphHeap (Priority Queue)+1 more
Medium
46.7% Accepted
39.6% Freq
GraphHeap (Priority Queue)Shortest Path
Hard
56.5% Accepted
38.3% Freq
Solution
ArrayBreadth-First SearchGraph+3 more
Hard
70.3% Accepted
37.8% Freq
Solution
ArrayBreadth-First SearchGraph+3 more
Medium
43.3% Accepted
37.8% Freq
Binary SearchDepth-First SearchBreadth-First Search+2 more
Medium
37.2% Accepted
35.3% Freq
Solution
Dynamic ProgrammingGraphTopological Sort+1 more
Hard
62.4% Accepted
30.9% Freq
Solution
Breadth-First SearchGraphShortest Path
Medium
65.4% Accepted
13.4% Freq
Solution
ArrayGraphHeap (Priority Queue)+1 more
Hard
51.4% Accepted
Solution
GraphHeap (Priority Queue)Shortest Path
Medium
40.5% Accepted
Dynamic ProgrammingGraphTopological Sort+2 more
1810. Minimum Path Cost in a Hidden Grid
💰 Premium
Medium
58.4% Accepted
ArrayDepth-First SearchBreadth-First Search+5 more
Medium
59.9% Accepted
Solution
GraphHeap (Priority Queue)Shortest Path
2473. Minimum Cost to Buy Apples
💰 Premium
Medium
67.1% Accepted
Solution
ArrayGraphHeap (Priority Queue)+1 more
Hard
64.4% Accepted
Solution
GraphDesignHeap (Priority Queue)+1 more
2737. Find the Closest Marked Node
💰 Premium
Medium
65.3% Accepted
Solution
ArrayGraphHeap (Priority Queue)+1 more
Hard
49.9% Accepted
Bit ManipulationGraphHeap (Priority Queue)+2 more
Medium
57.4% Accepted
Solution
ArrayStringGraph+1 more
Hard
26.0% Accepted
ArrayStringDynamic Programming+3 more
Medium
31.8% Accepted
ArrayBreadth-First SearchGraph+3 more
Medium
45.4% Accepted
GraphHeap (Priority Queue)Shortest Path
Page 1 of 4
Topological Sort (37 questions)
Hard
38.7% Accepted
95.5% Freq
ArrayTreeGraph+1 more
Medium
50.2% Accepted
79.0% Freq
Solution
Depth-First SearchBreadth-First SearchGraph+1 more
269. Alien Dictionary
💰 Premium
Hard
36.9% Accepted
77.2% Freq
Solution
ArrayStringDepth-First Search+3 more
Medium
54.4% Accepted
74.7% Freq
Solution
Depth-First SearchBreadth-First SearchGraph+1 more
Hard
57.4% Accepted
71.2% Freq
Solution
Hash TableDynamic ProgrammingGraph+3 more
Hard
55.9% Accepted
70.8% Freq
Solution
ArrayDynamic ProgrammingDepth-First Search+5 more
631. Design Excel Sum Formula
💰 Premium
Hard
40.5% Accepted
64.8% Freq
Solution
ArrayHash TableString+4 more
Medium
56.5% Accepted
64.5% Freq
Solution
ArrayHash TableString+2 more
Hard
61.9% Accepted
61.2% Freq
Solution
Depth-First SearchGraphTopological Sort
Medium
62.6% Accepted
59.0% Freq
Solution
ArrayDepth-First SearchGraph+1 more
Hard
65.6% Accepted
58.9% Freq
Solution
Depth-First SearchBreadth-First SearchGraph+1 more
Hard
66.8% Accepted
57.9% Freq
Solution
ArrayDynamic ProgrammingGraph+1 more
Hard
34.1% Accepted
57.8% Freq
Solution
MathDynamic ProgrammingGraph+3 more
Hard
53.9% Accepted
53.7% Freq
Solution
ArrayStringTree+3 more
Medium
69.7% Accepted
53.0% Freq
Solution
Depth-First SearchBreadth-First SearchGraph+1 more
Hard
60.3% Accepted
52.3% Freq
ArrayGraphTopological Sort+1 more
Hard
17.9% Accepted
50.9% Freq
ArrayStringBit Manipulation+3 more
1245. Tree Diameter
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Medium
61.2% Accepted
47.0% Freq
Solution
TreeDepth-First SearchBreadth-First Search+2 more
Medium
42.2% Accepted
46.6% Freq
Solution
Depth-First SearchBreadth-First SearchGraph+1 more
Hard
29.9% Accepted
45.0% Freq
ArrayBinary SearchDynamic Programming+4 more
Medium
62.0% Accepted
43.1% Freq
Solution
Depth-First SearchBreadth-First SearchGraph+1 more
Hard
41.7% Accepted
42.0% Freq
Solution
ArrayUnion FindGraph+3 more
Medium
59.6% Accepted
40.1% Freq
Solution
Depth-First SearchBreadth-First SearchGraph+1 more
Hard
50.2% Accepted
38.4% Freq
Solution
Depth-First SearchBreadth-First SearchGraph+1 more
Medium
37.2% Accepted
35.3% Freq
Solution
Dynamic ProgrammingGraphTopological Sort+1 more
Hard
57.5% Accepted
25.8% Freq
Solution
ArrayDynamic ProgrammingDepth-First Search+5 more
Hard
79.3% Accepted
24.2% Freq
Solution
ArrayGraphTopological Sort+1 more
Medium
37.0% Accepted
Solution
GraphTopological Sort
Medium
40.5% Accepted
Dynamic ProgrammingGraphTopological Sort+2 more
Hard
49.5% Accepted
MathDynamic ProgrammingTree+3 more
2371. Minimize Maximum Value in a Grid
💰 Premium
Hard
70.4% Accepted
Solution
ArrayUnion FindGraph+3 more
3383. Minimum Runes to Add to Cast Spell
💰 Premium
Hard
42.7% Accepted
ArrayDepth-First SearchBreadth-First Search+3 more
Hard
29.1% Accepted
ArrayDynamic ProgrammingBit Manipulation+3 more
Page 1 of 4
Hash Function (36 questions)
Hard
30.9% Accepted
75.2% Freq
Solution
StringBinary SearchSliding Window+3 more
Hard
78.0% Accepted
69.0% Freq
Solution
ArrayHash TableString+2 more
Medium
39.8% Accepted
68.9% Freq
Two PointersStringBinary Search+3 more
694. Number of Distinct Islands
💰 Premium
Medium
62.6% Accepted
68.0% Freq
Solution
Hash TableDepth-First SearchBreadth-First Search+2 more
711. Number of Distinct Islands II
💰 Premium
Hard
55.1% Accepted
65.9% Freq
Solution
Hash TableDepth-First SearchBreadth-First Search+2 more
Hard
41.3% Accepted
65.2% Freq
Solution
StringRolling HashString Matching+1 more
Medium
67.8% Accepted
64.1% Freq
ArrayRolling HashString Matching+1 more
Medium
52.2% Accepted
62.0% Freq
Solution
Hash TableStringBit Manipulation+3 more
Hard
32.9% Accepted
58.2% Freq
ArrayRolling HashString Matching+1 more
Medium
86.5% Accepted
57.9% Freq
Solution
Hash TableStringDesign+1 more
Medium
64.7% Accepted
57.1% Freq
StringTrieRolling Hash+2 more
Medium
51.2% Accepted
52.4% Freq
Solution
ArrayBinary SearchDynamic Programming+3 more
Hard
50.5% Accepted
50.6% Freq
StringRolling HashString Matching+1 more
Hard
59.0% Accepted
43.6% Freq
Two PointersStringDynamic Programming+3 more
Hard
25.5% Accepted
42.4% Freq
StringSliding WindowRolling Hash+1 more
1062. Longest Repeating Substring
💰 Premium
Medium
63.3% Accepted
42.0% Freq
Solution
StringBinary SearchDynamic Programming+3 more
Medium
56.8% Accepted
39.4% Freq
Solution
Hash TableStringBit Manipulation+2 more
Hard
18.6% Accepted
37.8% Freq
ArrayHash TableString+3 more
Hard
27.7% Accepted
29.4% Freq
ArrayStringTrie+3 more
Medium
20.9% Accepted
29.3% Freq
ArrayStringBinary Search+6 more
Hard
27.2% Accepted
26.2% Freq
Two PointersStringBinary Search+3 more
1554. Strings Differ by One Character
💰 Premium
Medium
40.6% Accepted
Hash TableStringRolling Hash+1 more
Hard
28.9% Accepted
ArrayBinary SearchRolling Hash+2 more
Hard
30.5% Accepted
StringRolling HashHash Function
Medium
64.1% Accepted
Solution
Hash TableStringRolling Hash+2 more
Hard
43.3% Accepted
StringBinary SearchRolling Hash+3 more
Medium
54.5% Accepted
ArrayHash TableTrie+3 more
Hard
35.3% Accepted
StringDynamic ProgrammingRolling Hash+2 more
3023. Find Pattern in Infinite Stream I
💰 Premium
Medium
56.8% Accepted
ArraySliding WindowRolling Hash+2 more
Medium
41.9% Accepted
StringRolling HashString Matching+1 more
Hard
34.7% Accepted
StringRolling HashString Matching+1 more
3037. Find Pattern in Infinite Stream II
💰 Premium
Hard
66.9% Accepted
ArraySliding WindowRolling Hash+2 more
Medium
55.6% Accepted
StringBinary SearchDynamic Programming+2 more
Hard
18.8% Accepted
ArrayStringBinary Search+5 more
Medium
25.8% Accepted
ArrayStringRolling Hash+3 more
Page 1 of 3
Geometry (35 questions)
Medium
64.1% Accepted
81.7% Freq
Solution
ArrayMathGeometry+2 more
Medium
68.4% Accepted
73.7% Freq
Solution
ArrayMathDivide and Conquer+4 more
Medium
55.8% Accepted
70.9% Freq
Solution
ArrayHash TableMath+1 more
Hard
37.8% Accepted
65.1% Freq
ArrayMathGeometry+2 more
Hard
32.3% Accepted
63.1% Freq
ArrayMathGeometry+2 more
Medium
55.2% Accepted
60.3% Freq
Solution
ArrayHash TableMath+2 more
Hard
29.7% Accepted
59.8% Freq
Solution
ArrayHash TableMath+1 more
Hard
64.4% Accepted
59.3% Freq
Solution
ArrayMathGeometry+2 more
Medium
55.9% Accepted
58.6% Freq
ArrayHash TableMath+2 more
Medium
45.6% Accepted
53.9% Freq
ArrayMathGeometry
Medium
61.9% Accepted
53.1% Freq
Solution
MathGeometryNumber Theory
Medium
49.6% Accepted
49.5% Freq
Solution
ArrayMathDepth-First Search+3 more
Medium
28.3% Accepted
43.6% Freq
ArrayHash TableMath+3 more
Hard
21.2% Accepted
41.3% Freq
ArrayMathBinary Indexed Tree+3 more
Medium
86.7% Accepted
39.4% Freq
ArrayMathGeometry
Hard
13.2% Accepted
36.6% Freq
ArrayHash TableMath+1 more
Hard
34.9% Accepted
35.7% Freq
ArrayMathGeometry+1 more
Medium
31.3% Accepted
23.9% Freq
ArrayHash TableMath+1 more
Medium
41.9% Accepted
Solution
MathGeometryRejection Sampling+1 more
Hard
39.4% Accepted
ArrayMathGeometry
Hard
50.1% Accepted
ArrayMathBinary Search+2 more
Medium
43.2% Accepted
ArrayHash TableMath+5 more
Medium
26.5% Accepted
ArrayMathGeometry+2 more
Hard
45.1% Accepted
ArrayHash TableMath+4 more
Hard
25.5% Accepted
ArrayMathDepth-First Search+3 more
Medium
50.5% Accepted
ArrayMathBinary Indexed Tree+4 more
Page 1 of 3
Binary Search Tree (30 questions)
Medium
65.6% Accepted
63.5% Freq
Solution
Linked ListStackTree+4 more
Medium
62.9% Accepted
63.1% Freq
Solution
MathDynamic ProgrammingTree+2 more
Medium
75.7% Accepted
60.8% Freq
Solution
StackTreeDesign+3 more
Medium
57.8% Accepted
60.6% Freq
Solution
TreeDepth-First SearchBinary Search Tree+1 more
Medium
76.1% Accepted
60.3% Freq
Solution
TreeDepth-First SearchBinary Search Tree+1 more
Medium
69.4% Accepted
60.2% Freq
Solution
TreeDepth-First SearchBinary Search Tree+1 more
Medium
61.3% Accepted
57.7% Freq
Solution
Dynamic ProgrammingBacktrackingTree+2 more
Medium
34.9% Accepted
56.9% Freq
Solution
TreeDepth-First SearchBinary Search Tree+1 more
Hard
45.6% Accepted
56.5% Freq
Dynamic ProgrammingTreeDepth-First Search+2 more
272. Closest Binary Search Tree Value II
💰 Premium
Hard
60.8% Accepted
53.9% Freq
Solution
Two PointersStackTree+4 more
Medium
83.8% Accepted
52.5% Freq
Solution
ArrayStackTree+3 more
Medium
53.7% Accepted
48.3% Freq
Solution
TreeBinary Search TreeBinary Tree
333. Largest BST Subtree
💰 Premium
Medium
45.7% Accepted
48.1% Freq
Solution
Dynamic ProgrammingTreeDepth-First Search+2 more
Medium
66.5% Accepted
47.2% Freq
Solution
TreeDepth-First SearchBinary Search Tree+1 more
Medium
59.0% Accepted
46.4% Freq
Solution
StringTreeDepth-First Search+4 more
Medium
71.0% Accepted
44.1% Freq
Solution
TreeDepth-First SearchBinary Search Tree+1 more
Medium
65.4% Accepted
43.5% Freq
Solution
Linked ListDivide and ConquerTree+2 more
Medium
73.3% Accepted
42.7% Freq
Solution
TreeBinary Search TreeBinary Tree
Medium
51.5% Accepted
42.5% Freq
Solution
ArrayStackTree+4 more
510. Inorder Successor in BST II
💰 Premium
Medium
61.1% Accepted
40.3% Freq
Solution
TreeBinary Search TreeBinary Tree
Medium
84.7% Accepted
31.1% Freq
Solution
Divide and ConquerGreedyTree+3 more
Medium
88.3% Accepted
29.7% Freq
Solution
TreeDepth-First SearchBinary Search Tree+1 more
Medium
80.1% Accepted
28.8% Freq
Solution
TreeDepth-First SearchBinary Search Tree+2 more
285. Inorder Successor in BST
💰 Premium
Medium
51.0% Accepted
23.6% Freq
Solution
TreeDepth-First SearchBinary Search Tree+1 more
Medium
43.5% Accepted
23.2% Freq
ArrayBinary SearchTree+3 more
Hard
53.8% Accepted
Solution
ArrayMathDivide and Conquer+7 more
1586. Binary Search Tree Iterator II
💰 Premium
Medium
63.3% Accepted
Solution
StackTreeDesign+3 more
1902. Depth of BST Given Insertion Order
💰 Premium
Medium
42.4% Accepted
ArrayTreeBinary Search Tree+2 more
Page 1 of 3
Rolling Hash (30 questions)
Hard
30.9% Accepted
75.2% Freq
Solution
StringBinary SearchSliding Window+3 more
Medium
39.8% Accepted
68.9% Freq
Two PointersStringBinary Search+3 more
Hard
41.3% Accepted
65.2% Freq
Solution
StringRolling HashString Matching+1 more
Medium
67.8% Accepted
64.1% Freq
ArrayRolling HashString Matching+1 more
Medium
52.2% Accepted
62.0% Freq
Solution
Hash TableStringBit Manipulation+3 more
Hard
32.9% Accepted
58.2% Freq
ArrayRolling HashString Matching+1 more
Medium
64.7% Accepted
57.1% Freq
StringTrieRolling Hash+2 more
Medium
51.2% Accepted
52.4% Freq
Solution
ArrayBinary SearchDynamic Programming+3 more
Hard
50.5% Accepted
50.6% Freq
StringRolling HashString Matching+1 more
Hard
59.0% Accepted
43.6% Freq
Two PointersStringDynamic Programming+3 more
Hard
25.5% Accepted
42.4% Freq
StringSliding WindowRolling Hash+1 more
1062. Longest Repeating Substring
💰 Premium
Medium
63.3% Accepted
42.0% Freq
Solution
StringBinary SearchDynamic Programming+3 more
Medium
56.8% Accepted
39.4% Freq
Solution
Hash TableStringBit Manipulation+2 more
Hard
27.7% Accepted
29.4% Freq
ArrayStringTrie+3 more
Medium
20.9% Accepted
29.3% Freq
ArrayStringBinary Search+6 more
Hard
27.2% Accepted
26.2% Freq
Two PointersStringBinary Search+3 more
1554. Strings Differ by One Character
💰 Premium
Medium
40.6% Accepted
Hash TableStringRolling Hash+1 more
Hard
28.9% Accepted
ArrayBinary SearchRolling Hash+2 more
Hard
30.5% Accepted
StringRolling HashHash Function
Medium
64.1% Accepted
Solution
Hash TableStringRolling Hash+2 more
Hard
43.3% Accepted
StringBinary SearchRolling Hash+3 more
Medium
54.5% Accepted
ArrayHash TableTrie+3 more
Hard
35.3% Accepted
StringDynamic ProgrammingRolling Hash+2 more
3023. Find Pattern in Infinite Stream I
💰 Premium
Medium
56.8% Accepted
ArraySliding WindowRolling Hash+2 more
Medium
41.9% Accepted
StringRolling HashString Matching+1 more
Hard
34.7% Accepted
StringRolling HashString Matching+1 more
3037. Find Pattern in Infinite Stream II
💰 Premium
Hard
66.9% Accepted
ArraySliding WindowRolling Hash+2 more
Hard
18.8% Accepted
ArrayStringBinary Search+5 more
Medium
25.8% Accepted
ArrayStringRolling Hash+3 more
Page 1 of 3
String Matching (27 questions)
Hard
30.6% Accepted
77.0% Freq
StringGreedyString Matching
Medium
39.8% Accepted
68.9% Freq
Two PointersStringBinary Search+3 more
Hard
41.3% Accepted
65.2% Freq
Solution
StringRolling HashString Matching+1 more
Medium
67.8% Accepted
64.1% Freq
ArrayRolling HashString Matching+1 more
616. Add Bold Tag in String
💰 Premium
Medium
51.2% Accepted
62.3% Freq
Solution
ArrayHash TableString+2 more
Medium
37.7% Accepted
61.2% Freq
Solution
StringString Matching
Hard
32.9% Accepted
58.2% Freq
ArrayRolling HashString Matching+1 more
Hard
50.5% Accepted
50.6% Freq
StringRolling HashString Matching+1 more
Hard
25.7% Accepted
49.8% Freq
MathStringDynamic Programming+1 more
Hard
42.8% Accepted
47.9% Freq
ArrayHash TableString+1 more
Medium
64.5% Accepted
44.5% Freq
ArrayTwo PointersString+2 more
Hard
27.7% Accepted
29.4% Freq
ArrayStringTrie+3 more
Medium
20.9% Accepted
29.3% Freq
ArrayStringBinary Search+6 more
Hard
27.2% Accepted
26.2% Freq
Two PointersStringBinary Search+3 more
Hard
44.5% Accepted
StringDynamic ProgrammingString Matching
Medium
54.4% Accepted
ArrayTwo PointersGreedy+1 more
Hard
43.3% Accepted
StringBinary SearchRolling Hash+3 more
Hard
35.3% Accepted
StringDynamic ProgrammingRolling Hash+2 more
3023. Find Pattern in Infinite Stream I
💰 Premium
Medium
56.8% Accepted
ArraySliding WindowRolling Hash+2 more
Medium
41.9% Accepted
StringRolling HashString Matching+1 more
Hard
34.7% Accepted
StringRolling HashString Matching+1 more
3037. Find Pattern in Infinite Stream II
💰 Premium
Hard
66.9% Accepted
ArraySliding WindowRolling Hash+2 more
Hard
18.8% Accepted
ArrayStringBinary Search+5 more
Hard
14.5% Accepted
StringString Matching
Hard
22.6% Accepted
Two PointersStringBinary Search+1 more
Medium
25.8% Accepted
ArrayStringRolling Hash+3 more
Page 1 of 3
Game Theory (26 questions)
Medium
77.0% Accepted
71.8% Freq
Solution
MathStringBrainteaser+1 more
Medium
30.8% Accepted
58.7% Freq
MathDynamic ProgrammingBit Manipulation+3 more
Hard
34.1% Accepted
57.8% Freq
Solution
MathDynamic ProgrammingGraph+3 more
Medium
56.0% Accepted
56.0% Freq
Solution
ArrayMathDynamic Programming+2 more
Medium
72.2% Accepted
47.3% Freq
Solution
ArrayMathDynamic Programming+1 more
Hard
33.2% Accepted
41.3% Freq
ArrayMathBit Manipulation+3 more
Hard
63.2% Accepted
35.6% Freq
Solution
ArrayMathDynamic Programming+1 more
Medium
72.9% Accepted
33.5% Freq
ArrayMathDynamic Programming+2 more
Medium
84.7% Accepted
32.7% Freq
Solution
ArrayMathGreedy+2 more
Hard
64.4% Accepted
29.1% Freq
Solution
ArrayMathBit Manipulation+2 more
Hard
59.5% Accepted
28.2% Freq
Solution
MathDynamic ProgrammingGame Theory
Medium
51.9% Accepted
18.1% Freq
Solution
MathDynamic ProgrammingGame Theory
Medium
62.3% Accepted
9.2% Freq
ArrayMathGreedy+2 more
Medium
58.6% Accepted
Solution
ArrayMathDynamic Programming+1 more
Hard
57.4% Accepted
MathDynamic ProgrammingTree+2 more
Medium
62.9% Accepted
Solution
MathStringGreedy+1 more
Page 1 of 3
Monotonic Queue (20 questions)
Hard
48.1% Accepted
85.4% Freq
Solution
ArrayQueueSliding Window+2 more
Medium
57.0% Accepted
74.8% Freq
Solution
ArrayQueueSliding Window+3 more
Hard
22.1% Accepted
65.5% Freq
ArrayStackSegment Tree+4 more
Medium
37.0% Accepted
61.7% Freq
ArrayDynamic ProgrammingQueue+3 more
Hard
69.3% Accepted
57.3% Freq
Solution
ArrayQueueSliding Window+1 more
Medium
48.6% Accepted
55.1% Freq
Solution
ArrayDivide and ConquerDynamic Programming+2 more
Medium
58.0% Accepted
54.4% Freq
Solution
ArrayQueueSliding Window+3 more
Hard
17.5% Accepted
53.8% Freq
ArrayBinary SearchDynamic Programming+4 more
Hard
32.4% Accepted
53.0% Freq
Solution
ArrayBinary SearchQueue+4 more
Medium
20.2% Accepted
52.7% Freq
ArrayMathQueue+3 more
Hard
50.3% Accepted
46.2% Freq
Solution
ArrayTwo PointersBinary Search+4 more
Medium
46.2% Accepted
36.1% Freq
Solution
ArrayDynamic ProgrammingQueue+2 more
Hard
56.3% Accepted
24.8% Freq
Solution
ArrayDynamic ProgrammingQueue+3 more
683. K Empty Slots
💰 Premium
Hard
37.9% Accepted
Solution
ArrayBinary Indexed TreeSegment Tree+5 more
Hard
39.7% Accepted
ArrayDynamic ProgrammingSegment Tree+4 more
Hard
37.5% Accepted
ArrayBinary SearchQueue+4 more
Hard
25.7% Accepted
ArrayDivide and ConquerDynamic Programming+4 more
Medium
47.9% Accepted
ArrayDynamic ProgrammingQueue+2 more
Hard
46.2% Accepted
ArrayDynamic ProgrammingQueue+2 more
Page 1 of 2
Interactive (19 questions)
277. Find the Celebrity
💰 Premium
Medium
48.7% Accepted
80.7% Freq
Solution
Two PointersGraphInteractive
Hard
43.1% Accepted
73.4% Freq
ArraySimulationInteractive
1778. Shortest Path in a Hidden Grid
💰 Premium
Medium
44.3% Accepted
62.4% Freq
ArrayDepth-First SearchBreadth-First Search+2 more
1274. Number of Ships in a Rectangle
💰 Premium
Hard
68.8% Accepted
61.9% Freq
Solution
ArrayDivide and ConquerInteractive
Medium
55.0% Accepted
59.5% Freq
Solution
ArrayBinary SearchMatrix+1 more
Hard
40.8% Accepted
59.1% Freq
Solution
ArrayBinary SearchInteractive
1236. Web Crawler
💰 Premium
Medium
68.7% Accepted
47.7% Freq
Solution
StringDepth-First SearchBreadth-First Search+1 more
Medium
73.0% Accepted
42.5% Freq
Solution
ArrayBinary SearchInteractive
Medium
69.7% Accepted
MathTwo PointersBinary Search+1 more
Medium
56.7% Accepted
Solution
ArrayBinary SearchInteractive
Medium
69.4% Accepted
Solution
ArrayMathInteractive
Medium
61.6% Accepted
ArrayStringBinary Search+1 more
1810. Minimum Path Cost in a Hidden Grid
💰 Premium
Medium
58.4% Accepted
ArrayDepth-First SearchBreadth-First Search+5 more
2782. Number of Unique Categories
💰 Premium
Medium
83.3% Accepted
Solution
Union FindInteractiveCounting
Medium
89.1% Accepted
Bit ManipulationInteractive
Medium
83.1% Accepted
Bit ManipulationInteractive
Page 1 of 2
Brainteaser (17 questions)
Medium
58.2% Accepted
83.1% Freq
Solution
Bit ManipulationBrainteaserEnumeration
Medium
65.4% Accepted
75.4% Freq
Solution
ArrayBit ManipulationBrainteaser
Medium
77.0% Accepted
71.8% Freq
Solution
MathStringBrainteaser+1 more
Medium
39.3% Accepted
48.8% Freq
ArrayMathBrainteaser+1 more
Medium
67.0% Accepted
32.5% Freq
MathDynamic ProgrammingBrainteaser+1 more
Hard
64.4% Accepted
29.1% Freq
Solution
ArrayMathBit Manipulation+2 more
Medium
89.7% Accepted
13.9% Freq
MathTwo PointersBrainteaser
Medium
68.2% Accepted
Solution
ArrayBrainteaserSimulation
Medium
66.9% Accepted
Solution
ArrayBit ManipulationBrainteaser
2505. Bitwise OR of All Subsequence Sums
💰 Premium
Medium
64.4% Accepted
ArrayMathBit Manipulation+2 more
Medium
58.3% Accepted
ArrayBit ManipulationBrainteaser
Medium
54.4% Accepted
MathDynamic ProgrammingGreedy+1 more
Medium
71.0% Accepted
MathBrainteaser
Page 1 of 2
Data Stream (16 questions)
362. Design Hit Counter
💰 Premium
Medium
69.3% Accepted
81.6% Freq
Solution
ArrayBinary SearchDesign+2 more
Hard
53.8% Accepted
79.4% Freq
Solution
Two PointersDesignSorting+2 more
642. Design Search Autocomplete System
💰 Premium
Hard
49.6% Accepted
76.8% Freq
Solution
StringDepth-First SearchDesign+4 more
Medium
48.6% Accepted
71.2% Freq
Solution
Hash TableDesignHeap (Priority Queue)+2 more
Medium
68.2% Accepted
66.9% Freq
Solution
StackDesignMonotonic Stack+1 more
1429. First Unique Number
💰 Premium
Medium
56.5% Accepted
63.5% Freq
Solution
ArrayHash TableDesign+2 more
Medium
78.0% Accepted
59.2% Freq
Solution
ArrayLinked ListStack+3 more
Hard
51.5% Accepted
49.0% Freq
Solution
ArrayStringDesign+2 more
Medium
62.8% Accepted
44.9% Freq
Solution
ArrayMathDesign+2 more
Hard
38.4% Accepted
38.5% Freq
DesignQueueHeap (Priority Queue)+2 more
Medium
56.6% Accepted
25.8% Freq
ArrayLinked ListDesign+2 more
Hard
59.7% Accepted
19.4% Freq
Solution
Hash TableBinary SearchUnion Find+3 more
Hard
61.5% Accepted
DesignHeap (Priority Queue)Data Stream+1 more
Medium
50.2% Accepted
Hash TableDesignQueue+2 more
3369. Design an Array Statistics Tracker
💰 Premium
Hard
34.7% Accepted
Hash TableBinary SearchDesign+4 more
Page 1 of 2
Merge Sort (12 questions)
Hard
58.0% Accepted
84.0% Freq
Solution
Linked ListDivide and ConquerHeap (Priority Queue)+1 more
Medium
56.1% Accepted
70.0% Freq
Solution
ArrayDivide and ConquerSorting+5 more
Hard
33.1% Accepted
69.5% Freq
Solution
ArrayBinary SearchDivide and Conquer+4 more
Medium
63.1% Accepted
69.4% Freq
Solution
Linked ListTwo PointersDivide and Conquer+2 more
Hard
43.1% Accepted
54.5% Freq
Solution
ArrayBinary SearchDivide and Conquer+4 more
Hard
40.8% Accepted
54.4% Freq
Solution
ArrayBinary SearchDivide and Conquer+4 more
Hard
37.7% Accepted
48.5% Freq
ArrayBinary SearchDivide and Conquer+4 more
Hard
65.8% Accepted
48.1% Freq
Solution
ArrayBinary SearchDivide and Conquer+4 more
Hard
46.3% Accepted
40.2% Freq
ArrayBinary SearchDivide and Conquer+4 more
Medium
49.2% Accepted
ArrayBinary SearchDivide and Conquer+4 more
2519. Count the Number of K-Big Indices
💰 Premium
Hard
53.4% Accepted
ArrayBinary SearchDivide and Conquer+4 more
3109. Find the Index of Permutation
💰 Premium
Medium
35.1% Accepted
ArrayBinary SearchDivide and Conquer+4 more
Doubly-Linked List (12 questions)
Medium
46.2% Accepted
98.8% Freq
Solution
Hash TableLinked ListDesign+1 more
Hard
47.7% Accepted
86.6% Freq
Solution
Hash TableLinked ListDesign+1 more
Hard
44.0% Accepted
85.1% Freq
Solution
Hash TableLinked ListDesign+1 more
Medium
62.0% Accepted
69.7% Freq
Solution
Linked ListDepth-First SearchDoubly-Linked List
Hard
48.7% Accepted
66.0% Freq
Linked ListStringStack+3 more
Medium
58.0% Accepted
65.2% Freq
Hash TableLinked ListDesign+1 more
Medium
65.6% Accepted
63.5% Freq
Solution
Linked ListStackTree+4 more
Medium
78.0% Accepted
59.2% Freq
Solution
ArrayLinked ListStack+3 more
1756. Design Most Recently Used Queue
💰 Premium
Medium
77.7% Accepted
Solution
ArrayLinked ListDivide and Conquer+3 more
Medium
81.7% Accepted
ArrayLinked ListDoubly-Linked List
Hard
14.5% Accepted
ArrayHash TableLinked List+4 more
Randomized (12 questions)
Medium
48.7% Accepted
92.5% Freq
Solution
ArrayMathBinary Search+2 more
Medium
55.1% Accepted
83.2% Freq
Solution
ArrayHash TableMath+2 more
Hard
36.1% Accepted
61.1% Freq
Solution
ArrayHash TableMath+2 more
Medium
64.8% Accepted
57.7% Freq
Solution
Hash TableMathReservoir Sampling+1 more
Medium
46.0% Accepted
52.1% Freq
Solution
MathRejection SamplingRandomized+1 more
Medium
38.8% Accepted
49.0% Freq
Solution
ArrayMathBinary Search+4 more
Medium
59.3% Accepted
48.7% Freq
Solution
ArrayMathDesign+1 more
Hard
34.3% Accepted
36.1% Freq
ArrayHash TableMath+3 more
Hard
34.9% Accepted
35.7% Freq
ArrayMathGeometry+1 more
Medium
64.4% Accepted
10.7% Freq
Solution
Linked ListMathReservoir Sampling+1 more
Medium
41.9% Accepted
Solution
MathGeometryRejection Sampling+1 more
Medium
44.6% Accepted
Solution
Hash TableMathReservoir Sampling+1 more
Iterator (8 questions)
Medium
65.4% Accepted
64.6% Freq
Solution
StackTreeDepth-First Search+3 more
Medium
75.7% Accepted
60.8% Freq
Solution
StackTreeDesign+3 more
251. Flatten 2D Vector
💰 Premium
Medium
50.3% Accepted
54.3% Freq
Solution
ArrayTwo PointersDesign+1 more
Medium
59.0% Accepted
37.6% Freq
Solution
ArrayDesignCounting+1 more
Medium
60.8% Accepted
24.7% Freq
Solution
ArrayDesignIterator
Medium
72.6% Accepted
Solution
StringBacktrackingDesign+1 more
1586. Binary Search Tree Iterator II
💰 Premium
Medium
63.3% Accepted
Solution
StackTreeDesign+3 more
Line Sweep (8 questions)
Hard
55.3% Accepted
77.7% Freq
Solution
ArraySegment TreeLine Sweep+1 more
Medium
72.8% Accepted
75.6% Freq
Solution
ArrayTwo PointersLine Sweep
759. Employee Free Time
💰 Premium
Hard
72.6% Accepted
67.0% Freq
Solution
ArrayLine SweepSorting+1 more
Hard
44.5% Accepted
66.1% Freq
Solution
ArrayDivide and ConquerBinary Indexed Tree+5 more
Hard
20.6% Accepted
52.1% Freq
ArrayBinary SearchSegment Tree+1 more
Hard
53.2% Accepted
46.5% Freq
ArrayBinary SearchLine Sweep+2 more
Hard
45.1% Accepted
ArrayHash TableMath+4 more
Quickselect (7 questions)
Medium
68.5% Accepted
88.7% Freq
Solution
ArrayDivide and ConquerSorting+2 more
Medium
65.1% Accepted
86.8% Freq
Solution
ArrayHash TableDivide and Conquer+5 more
Medium
68.4% Accepted
73.7% Freq
Solution
ArrayMathDivide and Conquer+4 more
Medium
36.3% Accepted
58.0% Freq
ArrayDivide and ConquerGreedy+2 more
Medium
63.8% Accepted
28.5% Freq
ArrayDivide and ConquerBit Manipulation+5 more
Medium
47.3% Accepted
ArrayStringDivide and Conquer+3 more
Medium
46.5% Accepted
ArrayStringDivide and Conquer+4 more
Probability and Statistics (7 questions)
Medium
59.8% Accepted
81.9% Freq
Solution
MathDynamic ProgrammingProbability and Statistics
Medium
52.0% Accepted
79.7% Freq
Solution
MathDynamic ProgrammingSliding Window+1 more
Medium
46.0% Accepted
52.1% Freq
Solution
MathRejection SamplingRandomized+1 more
1230. Toss Strange Coins
💰 Premium
Medium
58.1% Accepted
48.6% Freq
Solution
ArrayMathDynamic Programming+1 more
Medium
42.7% Accepted
37.0% Freq
ArrayMathProbability and Statistics
Medium
67.0% Accepted
32.5% Freq
MathDynamic ProgrammingBrainteaser+1 more
Hard
60.6% Accepted
ArrayMathDynamic Programming+3 more
Suffix Array (7 questions)
Hard
30.9% Accepted
75.2% Freq
Solution
StringBinary SearchSliding Window+3 more
Medium
64.7% Accepted
57.1% Freq
StringTrieRolling Hash+2 more
1062. Longest Repeating Substring
💰 Premium
Medium
63.3% Accepted
42.0% Freq
Solution
StringBinary SearchDynamic Programming+3 more
Hard
21.2% Accepted
40.3% Freq
StringDynamic ProgrammingSuffix Array
Hard
28.9% Accepted
ArrayBinary SearchRolling Hash+2 more
Hard
43.3% Accepted
StringBinary SearchRolling Hash+3 more
Hard
19.0% Accepted
ArrayStringDynamic Programming+1 more
Concurrency (7 questions)
1242. Web Crawler Multithreaded
💰 Premium
Medium
50.6% Accepted
62.9% Freq
Depth-First SearchBreadth-First SearchConcurrency
Bucket Sort (6 questions)
Medium
65.1% Accepted
86.8% Freq
Solution
ArrayHash TableDivide and Conquer+5 more
Medium
59.7% Accepted
78.1% Freq
Solution
ArrayHash TableString+5 more
Medium
56.1% Accepted
70.0% Freq
Solution
ArrayDivide and ConquerSorting+5 more
Medium
74.8% Accepted
66.3% Freq
Solution
Hash TableStringSorting+3 more
Hard
24.1% Accepted
51.7% Freq
Solution
ArraySliding WindowSorting+2 more
Medium
50.6% Accepted
47.7% Freq
Solution
ArraySortingBucket Sort+1 more
Counting Sort (6 questions)
Medium
56.1% Accepted
70.0% Freq
Solution
ArrayDivide and ConquerSorting+5 more
Medium
63.2% Accepted
29.8% Freq
StringSortingCounting Sort
Medium
74.1% Accepted
Solution
ArrayGreedySorting+1 more
Medium
76.0% Accepted
Solution
ArrayGreedySorting+1 more
Minimum Spanning Tree (6 questions)
Medium
69.8% Accepted
53.1% Freq
Solution
ArrayUnion FindGraph+1 more
Hard
38.7% Accepted
38.5% Freq
Binary SearchGreedyUnion Find+2 more
Hard
66.2% Accepted
29.8% Freq
Solution
Union FindGraphSorting+2 more
Medium
63.2% Accepted
Solution
Union FindGraphHeap (Priority Queue)+1 more
Hard
65.3% Accepted
Solution
Union FindGraphHeap (Priority Queue)+1 more
Hard
51.6% Accepted
Union FindGraphMinimum Spanning Tree
Reservoir Sampling (4 questions)
Medium
64.8% Accepted
57.7% Freq
Solution
Hash TableMathReservoir Sampling+1 more
Medium
38.8% Accepted
49.0% Freq
Solution
ArrayMathBinary Search+4 more
Medium
64.4% Accepted
10.7% Freq
Solution
Linked ListMathReservoir Sampling+1 more
Medium
44.6% Accepted
Solution
Hash TableMathReservoir Sampling+1 more
Radix Sort (3 questions)
Medium
56.1% Accepted
70.0% Freq
Solution
ArrayDivide and ConquerSorting+5 more
Medium
50.6% Accepted
47.7% Freq
Solution
ArraySortingBucket Sort+1 more
Medium
46.5% Accepted
ArrayStringDivide and Conquer+4 more
Eulerian Circuit (3 questions)
Hard
43.9% Accepted
66.4% Freq
Depth-First SearchGraphEulerian Circuit
Hard
58.2% Accepted
53.5% Freq
Solution
Depth-First SearchGraphEulerian Circuit
Hard
66.4% Accepted
42.1% Freq
Solution
Depth-First SearchGraphEulerian Circuit
Strongly Connected Component (3 questions)
Hard
44.6% Accepted
41.3% Freq
ArrayTreeGraph+1 more
Hard
66.2% Accepted
29.8% Freq
Solution
Union FindGraphSorting+2 more
Hard
58.9% Accepted
Solution
ArrayDepth-First SearchBreadth-First Search+2 more
Shell (2 questions)
Rejection Sampling (2 questions)
Medium
46.0% Accepted
52.1% Freq
Solution
MathRejection SamplingRandomized+1 more
Medium
41.9% Accepted
Solution
MathGeometryRejection Sampling+1 more
Sort (2 questions)
Hard
57.6% Accepted
83.3% Freq
Solution
ArrayHash TableGreedy+1 more
Biconnected Component (1 questions)
Hard
58.8% Accepted
65.8% Freq
Solution
Depth-First SearchGraphBiconnected Component
Frequently Asked Questions
How many questions are included?
This sheet includes 2,627 Medium and Hard LeetCode problems (Easy questions excluded), organized by topic tags with frequency-based sorting within each tag.
How are questions organized?
Questions are organized by topic tags (Array, Dynamic Programming, etc.). Within each tag group, questions are sorted by frequency - highest frequency problems appear first, making it easy to focus on the most important problems in each topic.
Is this sheet free to use?
Yes, completely free! No registration required. Your progress is saved locally in your browser.
How should I use this sheet?
Use the tag filter to focus on specific topics. Within each tag group, questions are sorted by frequency (highest first), so start with the top questions in each tag you want to practice.