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Problems

437 problems

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

Medium · 437 results

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TitleSolutionAcceptDifficultyTopics
3720. Lexicographically Smallest Permutation Greater Than TargetVideo
Solution48.2%Medium
Counting, Enumeration +3· 2 companies
3744. Find Kth Character in Expanded StringVideoPremium
Solution56.4%Medium
String
3746. Minimum String Length After Balanced RemovalsVideo
Solution77.6%Medium
Counting, Stack +1
3756. Concatenate Non-Zero Digits and Multiply by Sum IIVideo
Solution42.7%Medium
Math, Prefix Sum +1· 3 companies
3758. Convert Number Words to DigitsVideoPremium
Solution67.7%Medium
String, Trie
3760. Maximum Substrings With Distinct StartVideo
Solution90.4%Medium
Hash Table, String
3773. Maximum Number of Equal Length RunsPremium
Solution82.8%Medium
Counting, Hash Table +1
3775. Reverse Words With Same Vowel CountVideo
Solution66.6%Medium
Simulation, String +1
3781. Maximum Score After Binary SwapsVideo
Solution35.0%Medium
Array, Greedy +2· 1 company
3784. Minimum Deletion Cost to Make All Characters EqualVideo
Solution55.0%Medium
Array, Enumeration +2
3799. Word Squares IIVideo
Solution53.8%Medium
Array, Backtracking +3· 1 company
3800. Minimum Cost to Make Two Binary Strings EqualVideo
Solution38.6%Medium
Greedy, String
3805. Count Caesar Cipher PairsVideo
Solution50.7%Medium
Array, Counting +3· 1 company
3817. Good Indices in a Digit StringVideoPremium
Solution85.3%Medium
Math, String
3839. Number of Prefix Connected GroupsVideo
Solution59.9%Medium
Array, Counting +2
3844. Longest Almost-Palindromic SubstringVideo
Solution22.8%Medium
Dynamic Programming, String +1
3846. Total Distance to Type a String Using One FingerVideoPremium
Solution89.9%Medium
Hash Table, String
3849. Maximum Bitwise XOR After RearrangementVideo
Solution70.4%Medium
Bit Manipulation, Greedy +1
3853. Merge Close CharactersVideo
Solution53.9%Medium
Hash Table, String· 1 company
3860. Unique Email GroupsPremium
Solution84.8%Medium
Array, Hash Table +1
3863. Minimum Operations to Sort a StringVideo
Solution39.0%Medium
String· 1 company
3889. Mirror Frequency DistanceVideo
Solution60.7%Medium
Counting, Hash Table +1
3900. Longest Balanced Substring After One SwapVideo
Solution14.2%Medium
Hash Table, Prefix Sum +1· 1 company
3913. Sort Vowels by FrequencyVideo
Solution61.5%Medium
Counting, Sorting +1
3922. Minimum Flips to Make Binary String CoherentVideo
–19.9%Medium
String· 1 company
3926. Count Valid Word OccurrencesVideo
Solution48.1%Medium
Array, Counting +2
3941. Password StrengthVideo
Solution74.5%Medium
Hash Table, String
3952. Maximum Total Value of Covered IndicesVideo
–28.5%Medium
Array, Dynamic Programming +2· 1 company
3955. Valid Binary Strings With Cost LimitVideo
Solution78.5%Medium
Backtracking, Bit Manipulation +2
3968. Maximum Manhattan Distance After All MovesVideo
Solution63.3%Medium
Counting, Math +1
3970. Shortest Path With At Most K Consecutive Identical CharactersVideo
–44.7%Medium
Graph, Heap (Priority Queue) +2
3980. Minimum Operations to Transform Binary StringVideo
–37.0%Medium
Dynamic Programming, Greedy +1
3983. Subsequence After One ReplacementVideo
Solution21.6%Medium
String, Two Pointers
3998. Transform Binary String Using Subsequence SortVideo
–37.9%Medium
Array, Greedy +2
4021. Minimum Operations to Make a Rotated Palindrome IVideo
Solution63.9%Medium
Enumeration, Math +1
4026. Maximum Gap Between StationsVideo
Solution52.4%Medium
Greedy, String +1
4036. Lexicographically Largest String After Pair TransformationsVideo
Solution42.8%Medium
Array, Bit Manipulation +2
Showing 401–437 of 437