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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
2575. Find the Divisibility Array of a StringVideo
Solution37.1%Medium
Array, Math +1· 2 companies
2590. Design a Todo ListVideoPremium
Solution59.8%Medium
Array, Design +3· 1 company
2606. Find the Substring With Maximum CostVideo
Solution57.7%Medium
Array, Dynamic Programming +2· 2 companies
2645. Minimum Additions to Make Valid StringVideo
Solution50.8%Medium
Dynamic Programming, Greedy +2· 3 companies
2707. Extra Characters in a StringVideo
Solution57.4%Medium
Array, Dynamic Programming +3· 3 companies
2712. Minimum Cost to Make All Characters EqualVideo
Solution53.2%Medium
Dynamic Programming, Greedy +1· 1 company
2730. Find the Longest Semi-Repetitive SubstringVideo
Solution39.3%Medium
Sliding Window, String
2734. Lexicographically Smallest String After Substring OperationVideo
Solution35.2%Medium
Greedy, String· 4 companies
2743. Count Substrings Without Repeating CharacterVideoPremium
Solution75.9%Medium
Hash Table, Sliding Window +1· 1 company
2746. Decremental String ConcatenationVideo
Solution27.6%Medium
Array, Dynamic Programming +1
2767. Partition String Into Minimum Beautiful SubstringsVideo
Solution54.0%Medium
Backtracking, Dynamic Programming +2
2785. Sort Vowels in a StringVideo
Solution83.4%Medium
Sorting, String· 5 companies
2800. Shortest String That Contains Three StringsVideo
Solution32.2%Medium
Enumeration, Greedy +1· 3 companies
2802. Find The K-th Lucky NumberVideoPremium
Solution76.1%Medium
Bit Manipulation, Math +1
2825. Make String a Subsequence Using Cyclic IncrementsVideo
Solution65.7%Medium
String, Two Pointers· 1 company
2840. Check if Strings Can be Made Equal With Operations IIVideo
Solution73.9%Medium
Hash Table, Sorting +1· 4 companies
2844. Minimum Operations to Make a Special NumberVideo
Solution38.5%Medium
Enumeration, Greedy +2
2896. Apply Operations to Make Two Strings EqualVideo
Solution27.7%Medium
Dynamic Programming, String· 1 company
2901. Longest Unequal Adjacent Groups Subsequence IIVideo
Solution51.4%Medium
Array, Dynamic Programming +1· 2 companies
2904. Shortest and Lexicographically Smallest Beautiful StringVideo
Solution59.8%Medium
Sliding Window, String· 2 companies
2914. Minimum Number of Changes to Make Binary String BeautifulVideo
Solution76.4%Medium
String· 4 companies
2933. High-Access EmployeesVideo
Solution48.0%Medium
Array, Hash Table +2· 2 companies
2938. Separate Black and White BallsVideo
Solution64.0%Medium
Greedy, String +1· 5 companies
2947. Count Beautiful Substrings IVideo
Solution60.9%Medium
Enumeration, Hash Table +4· 1 company
2950. Number of Divisible SubstringsVideoPremium
Solution74.6%Medium
Counting, Hash Table +2· 4 companies
2955. Number of Same-End SubstringsVideoPremium
Solution60.6%Medium
Array, Counting +3· 2 companies
2957. Remove Adjacent Almost-Equal CharactersVideo
Solution53.6%Medium
Dynamic Programming, Greedy +1· 1 company
2976. Minimum Cost to Convert String IVideo
Solution63.2%Medium
Array, Graph +2· 4 companies
2981. Find Longest Special Substring That Occurs Thrice IVideo
Solution61.9%Medium
Binary Search, Counting +3· 3 companies
2982. Find Longest Special Substring That Occurs Thrice IIVideo
Solution39.2%Medium
Binary Search, Counting +3· 2 companies
3006. Find Beautiful Indices in the Given Array IVideo
Solution41.2%Medium
Binary Search, Hash Function +4· 5 companies
3016. Minimum Number of Pushes to Type Word IIVideo
Solution83.2%Medium
Counting, Greedy +3· 3 companies
3029. Minimum Time to Revert Word to Initial State IVideo
Solution42.4%Medium
Hash Function, Rolling Hash +2· 1 company
3035. Maximum Palindromes After OperationsVideo
Solution47.2%Medium
Array, Counting +4· 8 companies
3043. Find the Length of the Longest Common PrefixVideo
Solution62.1%Medium
Array, Hash Table +2· 17 companies
3076. Shortest Uncommon Substring in an ArrayVideo
Solution50.8%Medium
Array, Hash Table +2· 3 companies
3078. Match Alphanumerical Pattern in Matrix IVideoPremium
Solution64.6%Medium
Array, Hash Table +2· 2 companies
3081. Replace Question Marks in String to Minimize Its ValueVideo
Solution29.6%Medium
Counting, Greedy +4· 1 company
3084. Count Substrings Starting and Ending with Given CharacterVideo
Solution50.5%Medium
Counting, Math +1
3085. Minimum Deletions to Make String K-SpecialVideo
Solution67.2%Medium
Counting, Greedy +3· 3 companies
3106. Lexicographically Smallest String After Operations With ConstraintVideo
Solution62.3%Medium
Greedy, String· 1 company
3119. Maximum Number of Potholes That Can Be FixedVideoPremium
Solution53.3%Medium
Greedy, Sorting +1· 2 companies
3121. Count the Number of Special Characters IIVideo
Solution60.3%Medium
Hash Table, String· 3 companies
3125. Maximum Number That Makes Result of Bitwise AND ZeroVideoPremium
Solution70.0%Medium
Greedy, Sorting +1· 1 company
3135. Equalize Strings by Adding or Removing Characters at EndsVideoPremium
Solution56.8%Medium
Binary Search, Dynamic Programming +3· 1 company
3137. Minimum Number of Operations to Make Word K-PeriodicVideo
Solution59.9%Medium
Counting, Hash Table +1· 2 companies
3138. Minimum Length of Anagram ConcatenationVideo
Solution39.8%Medium
Counting, Hash Table +1· 2 companies
3143. Maximum Points Inside the SquareVideo
Solution39.9%Medium
Array, Binary Search +3· 1 company
3144. Minimum Substring Partition of Equal Character FrequencyVideo
Solution40.5%Medium
Counting, Dynamic Programming +2· 4 companies
3163. String Compression IIIVideo
Solution67.0%Medium
String· 7 companies
Showing 301–350 of 437