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Problems

870 problems

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Array2,209String870Hash Table786Math682Dynamic Programming666Sorting504Greedy480Binary Search352Depth-First Search335Database303Bit Manipulation283Matrix278Tree261Breadth-First Search255Two Pointers249All topics

With video · 870 results

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TitleSolutionAcceptDifficultyTopics
2564. Substring XOR QueriesVideo
Solution36.1%Medium
Array, Bit Manipulation +2· 1 company
2565. Subsequence With the Minimum ScoreVideo
Solution33.8%Hard
Binary Search, String +1· 1 company
2573. Find the String with LCPVideo
Solution63.3%Hard
Array, Dynamic Programming +4· 1 company
2575. Find the Divisibility Array of a StringVideo
Solution37.1%Medium
Array, Math +1· 2 companies
2586. Count the Number of Vowel Strings in RangeVideo
Solution74.3%Easy
Array, Counting +1· 1 company
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
2609. Find the Longest Balanced Substring of a Binary StringVideo
Solution46.6%Easy
String· 1 company
2645. Minimum Additions to Make Valid StringVideo
Solution50.8%Medium
Dynamic Programming, Greedy +2· 3 companies
2663. Lexicographically Smallest Beautiful StringVideo
Solution37.9%Hard
Greedy, String· 2 companies
2678. Number of Senior CitizensVideo
Solution81.5%Easy
Array, String· 2 companies
2696. Minimum String Length After Removing SubstringsVideo
Solution77.0%Easy
Simulation, Stack +1· 6 companies
2697. Lexicographically Smallest PalindromeVideo
Solution82.0%Easy
Greedy, String +1· 3 companies
2707. Extra Characters in a StringVideo
Solution57.4%Medium
Array, Dynamic Programming +3· 3 companies
2710. Remove Trailing Zeros From a StringVideo
Solution79.5%Easy
String
2712. Minimum Cost to Make All Characters EqualVideo
Solution53.2%Medium
Dynamic Programming, Greedy +1· 1 company
2716. Minimize String LengthVideo
Solution80.2%Easy
Hash Table, String· 2 companies
2719. Count of IntegersVideo
Solution38.9%Hard
Dynamic Programming, Math +1· 2 companies
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
2744. Find Maximum Number of String PairsVideo
Solution82.4%Easy
Array, Hash Table +2
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
2781. Length of the Longest Valid SubstringVideo
Solution38.3%Hard
Array, Hash Table +2· 3 companies
2785. Sort Vowels in a StringVideo
Solution83.4%Medium
Sorting, String· 5 companies
2788. Split Strings by SeparatorVideo
Solution76.1%Easy
Array, String· 3 companies
2800. Shortest String That Contains Three StringsVideo
Solution32.2%Medium
Enumeration, Greedy +1· 3 companies
2801. Count Stepping Numbers in RangeVideo
Solution28.7%Hard
Dynamic Programming, String· 2 companies
2802. Find The K-th Lucky NumberVideoPremium
Solution76.1%Medium
Bit Manipulation, Math +1
2810. Faulty KeyboardVideo
Solution80.7%Easy
Simulation, String· 1 company
2825. Make String a Subsequence Using Cyclic IncrementsVideo
Solution65.7%Medium
String, Two Pointers· 1 company
2828. Check if a String Is an Acronym of WordsVideo
Solution82.8%Easy
Array, String· 2 companies
2833. Furthest Point From OriginVideo
Solution77.2%Easy
Counting, String· 4 companies
2839. Check if Strings Can be Made Equal With Operations IVideo
Solution61.8%Easy
String· 3 companies
2840. Check if Strings Can be Made Equal With Operations IIVideo
Solution73.9%Medium
Hash Table, Sorting +1· 4 companies
2842. Count K-Subsequences of a String With Maximum BeautyVideo
Solution30.2%Hard
Combinatorics, Greedy +3· 1 company
2844. Minimum Operations to Make a Special NumberVideo
Solution38.5%Medium
Enumeration, Greedy +2
2851. String TransformationVideo
Solution27.4%Hard
Dynamic Programming, Math +2· 3 companies
2864. Maximum Odd Binary NumberVideo
Solution83.0%Easy
Greedy, Math +1· 3 companies
2896. Apply Operations to Make Two Strings EqualVideo
Solution27.7%Medium
Dynamic Programming, String· 1 company
2900. Longest Unequal Adjacent Groups Subsequence IVideo
Solution67.0%Easy
Array, Dynamic Programming +2· 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
2911. Minimum Changes to Make K Semi-palindromesVideo
Solution35.3%Hard
Dynamic Programming, String +1
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
2937. Make Three Strings EqualVideo
Solution45.3%Easy
String· 1 company
2938. Separate Black and White BallsVideo
Solution64.0%Medium
Greedy, String +1· 5 companies
2942. Find Words Containing CharacterVideo
Solution90.4%Easy
Array, String· 6 companies
Showing 601–650 of 870