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Problems

1,212 problems

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Array1,212Hash Table473String437Math331Greedy330Dynamic Programming327Sorting302Depth-First Search208Binary Search189Breadth-First Search166Matrix163Tree158Prefix Sum155Two Pointers150Database137All topics

Medium · 1,212 results

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TitleSolutionAcceptDifficultyTopics
4040. Minimum Operations to Form Subset Sum IVideo
Solution52.4%Medium
Array, Dynamic Programming
4044. Count Good Cyclic RotationsVideo
Solution49.0%Medium
Array, Prefix Sum +1
4045. Count Robot GroupsVideo
–31.9%Medium
Array, Monotonic Stack +1
4049. Count Values With Equally Spaced Occurrences IIVideo
Solution62.9%Medium
Array, Hash Table
4053. Minimum Operations to Make Every Element PalindromicVideo
Solution15.5%Medium
Array, Binary Search
4054. Count Shadow Pairs IVideo
–41.8%Medium
Array, Monotonic Stack +1
4057. Number of Intersecting Interval Pairs IIVideo
Solution50.3%Medium
Array, Binary Search +1
4058. Maximum Pulse Value After One Subarray RotationVideo
–38.9%Medium
Array, Dynamic Programming +1
4062. Transform Array Using Pair OperationsVideo
Solution60.8%Medium
Array, Brainteaser
4063. Longest Subarray Divisible by K with At Most One Negation IVideo
Solution34.2%Medium
Array, Hash Table +1
4066. Maximum Equal Adjacent Pairs After at Most One ReplacementVideo
Solution49.8%Medium
Array, Counting +1
4067. Longest Subarray With Restricted Pair SumsVideo
Solution37.8%Medium
Array, Hash Table +1
Showing 1,201–1,212 of 1,212