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Problems

578 problems

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Array578Dynamic Programming332String191Math187Binary Search136Hash Table134Sorting106Greedy104Bit Manipulation103Graph96Depth-First Search91Heap (Priority Queue)78Prefix Sum77Matrix75Breadth-First Search71All topics

Hard · 578 results

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TitleSolutionAcceptDifficultyTopics
3939. Count Non Adjacent Subsets in a Rooted TreeVideo
–51.7%Hard
Array, Depth-First Search +2· 1 company
3943. Number of Pairs After IncrementVideo
–20.9%Hard
Array, Counting +2
3948. Lexicographically Maximum MEX ArrayVideo
–53.6%Hard
Array, Greedy +2· 2 companies
3953. Maximum Score with Co-Prime ElementVideo
–27.5%Hard
Array, Combinatorics +4· 2 companies
3956. Maximum Sum of M Non-Overlapping Subarrays IVideo
–26.3%Hard
Array, Binary Search +5
3957. Maximum Sum of M Non-Overlapping Subarrays IIVideo
–16.6%Hard
Array, Binary Search +5
3962. Maximum Subarray Sum After at Most K SwapsVideo
Solution14.2%Hard
Array, Binary Indexed Tree +5· 1 company
3971. Maximum Total ValueVideo
–29.7%Hard
Array, Binary Search +2· 1 company
3977. Minimum Time to Reach Target With Limited PowerVideo
Solution40.4%Hard
Array, Dynamic Programming +3
3985. Palindromic Subarray SumVideo
–34.6%Hard
Array, Binary Search +2
3989. Maximum Consistent Columns in a GridVideo
–68.7%Hard
Array, Dynamic Programming +1
3995. Minimum Cost to Convert String IIIVideo
–55.6%Hard
Array, Dynamic Programming +1
4003. Minimum Cost Path with Alternating Directions IIIVideo
Solution61.4%Hard
Array, Graph +3
4007. Widest Possible FenceVideo
Solution16.9%Hard
Array, Counting +2
4009. Minimum Possible Maximum Waiting TimeVideo
–29.9%Hard
Array, Dynamic Programming +1
4013. Count Subarrays With Even Odd Ratio IIVideo
Solution40.9%Hard
Array, Binary Indexed Tree +4
4017. Peaks in Array IIVideo
–28.4%Hard
Array, Divide and Conquer +1
4023. Elevator Requests IIVideo
–27.6%Hard
Array, Dynamic Programming +1
4027. Elevator Requests IIIVideo
Solution45.7%Hard
Array, Bit Manipulation +3
4033. Valid K-Unique Subarrays IVideo
–34.8%Hard
Array, Binary Indexed Tree +4
4037. Maximum Valid Split Positions IIVideo
Solution32.2%Hard
Array, Enumeration +2
4041. Minimum Operations to Form Subset Sum IIVideo
Solution49.3%Hard
Array, Dynamic Programming
4046. Minimum Cost Path With At Most K TurnsVideo
–53.9%Hard
Array, Graph +3
4051. Count Subarrays with Distant SumsVideo
Solution32.8%Hard
Array, Binary Indexed Tree +3
4055. Count Shadow Pairs II
–18.7%Hard
Array, Binary Indexed Tree +6
4059. Lexicographically Largest Power ArrayVideo
–24.9%Hard
Array, Bit Manipulation +1
4064. Longest Subarray Divisible by K with At Most One Negation IIVideo
Solution24.7%Hard
Array, Binary Search +2
4068. Maximize Meeting Earnings with Idle GapsVideo
Solution39.0%Hard
Array, Binary Search +2
Showing 551–578 of 578