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Problems

877 problems

Has videoPremium onlyReset
Array2,237String877Hash Table797Math691Dynamic Programming673Sorting508Greedy485Binary Search357Depth-First Search338Database308Bit Manipulation286Matrix279Tree264Breadth-First Search257Prefix Sum252All topics

877 results

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TitleSolutionAcceptDifficultyTopics
2942. Find Words Containing CharacterVideo
Solution90.4%Easy
Array, String· 6 companies
2947. Count Beautiful Substrings IVideo
Solution60.9%Medium
Enumeration, Hash Table +4· 1 company
2949. Count Beautiful Substrings IIVideo
Solution27.5%Hard
Hash Table, Math +3· 1 company
2950. Number of Divisible SubstringsVideoPremium
Solution74.6%Medium
Counting, Hash Table +2· 4 companies
2953. Count Complete SubstringsVideo
Solution31.3%Hard
Hash Table, Sliding Window +1· 1 company
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
2977. Minimum Cost to Convert String IIVideo
Solution59.1%Hard
Array, Dynamic Programming +4· 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
2983. Palindrome Rearrangement QueriesVideo
Solution24.4%Hard
Hash Table, Prefix Sum +1
2999. Count the Number of Powerful IntegersVideo
Solution46.3%Hard
Dynamic Programming, Math +1· 5 companies
3003. Maximize the Number of Partitions After OperationsVideo
Solution53.5%Hard
Bit Manipulation, Bitmask +2· 1 company
3006. Find Beautiful Indices in the Given Array IVideo
Solution41.2%Medium
Binary Search, Hash Function +4· 5 companies
3008. Find Beautiful Indices in the Given Array IIVideo
Solution28.3%Hard
Binary Search, Hash Function +4· 3 companies
3014. Minimum Number of Pushes to Type Word IVideo
Solution77.1%Easy
Greedy, Math +1· 4 companies
3016. Minimum Number of Pushes to Type Word IIVideo
Solution83.2%Medium
Counting, Greedy +3· 3 companies
3019. Number of Changing KeysVideo
Solution80.6%Easy
String· 5 companies
3029. Minimum Time to Revert Word to Initial State IVideo
Solution42.4%Medium
Hash Function, Rolling Hash +2· 1 company
3031. Minimum Time to Revert Word to Initial State IIVideo
Solution35.1%Hard
Hash Function, Rolling Hash +2· 1 company
3035. Maximum Palindromes After OperationsVideo
Solution47.2%Medium
Array, Counting +4· 8 companies
3042. Count Prefix and Suffix Pairs IVideo
Solution77.8%Easy
Array, Hash Function +4· 6 companies
3043. Find the Length of the Longest Common PrefixVideo
Solution62.1%Medium
Array, Hash Table +2· 17 companies
3045. Count Prefix and Suffix Pairs IIVideo
Solution28.2%Hard
Array, Hash Function +4· 4 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
3083. Existence of a Substring in a String and Its ReverseVideo
Solution66.6%Easy
Hash Table, String· 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
3088. Make String Anti-palindromeVideoPremium
Solution46.6%Hard
Counting Sort, Greedy +2· 1 company
3090. Maximum Length Substring With Two OccurrencesVideo
Solution77.4%Easy
Hash Table, Sliding Window +1· 2 companies
3093. Longest Common Suffix QueriesVideo
Solution52.8%Hard
Array, String +1· 2 companies
3104. Find Longest Self-Contained SubstringVideoPremium
Solution58.6%Hard
Binary Search, Hash Table +2· 1 company
3106. Lexicographically Smallest String After Operations With ConstraintVideo
Solution62.3%Medium
Greedy, String· 1 company
3110. Score of a StringVideo
Solution91.4%Easy
String· 5 companies
3114. Latest Time You Can Obtain After Replacing CharactersVideo
Solution35.4%Easy
Enumeration, String· 1 company
3119. Maximum Number of Potholes That Can Be FixedVideoPremium
Solution53.3%Medium
Greedy, Sorting +1· 2 companies
3120. Count the Number of Special Characters IVideo
Solution77.2%Easy
Hash Table, String· 3 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
3136. Valid WordVideo
Solution50.9%Easy
String· 8 companies
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
3146. Permutation Difference between Two StringsVideo
Solution87.9%Easy
Hash Table, String· 1 company
3163. String Compression IIIVideo
Solution67.0%Medium
String· 7 companies
Showing 651–700 of 877