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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
1616. Split Two Strings to Make PalindromeVideo
Solution32.8%Medium
String, Two Pointers· 1 company
1618. Maximum Font to Fit a Sentence in a ScreenVideoPremium
Solution62.0%Medium
Array, Binary Search +2· 1 company
1625. Lexicographically Smallest String After Applying OperationsVideo
Solution79.4%Medium
Breadth-First Search, Depth-First Search +2· 2 companies
1638. Count Substrings That Differ by One CharacterVideo
Solution72.4%Medium
Dynamic Programming, Enumeration +2· 1 company
1647. Minimum Deletions to Make Character Frequencies UniqueVideo
Solution61.3%Medium
Greedy, Hash Table +2· 7 companies
1653. Minimum Deletions to Make String BalancedVideo
Solution68.2%Medium
Dynamic Programming, Stack +1· 7 companies
1657. Determine if Two Strings Are CloseVideo
Solution54.2%Medium
Counting, Hash Table +2· 7 companies
1663. Smallest String With A Given Numeric ValueVideo
Solution67.5%Medium
Greedy, String· 1 company
1682. Longest Palindromic Subsequence IIVideoPremium
Solution50.1%Medium
Dynamic Programming, String
1689. Partitioning Into Minimum Number Of Deci-Binary NumbersVideo
Solution90.5%Medium
Greedy, String· 4 companies
1698. Number of Distinct Substrings in a StringVideoPremium
Solution64.4%Medium
Hash Function, Rolling Hash +3· 4 companies
1702. Maximum Binary String After ChangeVideo
Solution48.1%Medium
Greedy, String· 1 company
1717. Maximum Score From Removing SubstringsVideo
Solution66.6%Medium
Greedy, Stack +1· 7 companies
1737. Change Minimum Characters to Satisfy One of Three ConditionsVideo
Solution38.4%Medium
Counting, Hash Table +2· 1 company
1750. Minimum Length of String After Deleting Similar EndsVideo
Solution55.9%Medium
String, Two Pointers· 3 companies
1754. Largest Merge Of Two StringsVideo
Solution54.8%Medium
Greedy, String +1· 1 company
1759. Count Number of Homogenous SubstringsVideo
Solution57.6%Medium
Math, String· 2 companies
1769. Minimum Number of Operations to Move All Balls to Each BoxVideo
Solution90.1%Medium
Array, Prefix Sum +1· 6 companies
1772. Sort Features by PopularityVideoPremium
Solution66.4%Medium
Array, Hash Table +2· 1 company
1781. Sum of Beauty of All SubstringsVideo
Solution74.9%Medium
Counting, Hash Table +1· 6 companies
1794. Count Pairs of Equal Substrings With Minimum DifferenceVideoPremium
Solution62.7%Medium
Greedy, Hash Table +1· 1 company
1804. Implement Trie II (Prefix Tree)VideoPremium
Solution63.6%Medium
Design, Hash Table +2· 2 companies
1807. Evaluate the Bracket Pairs of a StringVideo
Solution80.8%Medium
Array, Hash Table +1· 2 companies
1813. Sentence Similarity IIIVideo
Solution48.8%Medium
Array, String +1· 4 companies
1839. Longest Substring Of All Vowels in OrderVideo
Solution52.3%Medium
Sliding Window, String· 5 companies
1849. Splitting a String Into Descending Consecutive ValuesVideo
Solution37.5%Medium
Backtracking, String
1850. Minimum Adjacent Swaps to Reach the Kth Smallest NumberVideo
Solution72.0%Medium
Greedy, String +1· 2 companies
1864. Minimum Number of Swaps to Make the Binary String AlternatingVideo
Solution44.1%Medium
Greedy, String· 2 companies
1871. Jump Game VIIVideo
Solution35.4%Medium
Dynamic Programming, Prefix Sum +2· 4 companies
1881. Maximum Value after InsertionVideo
Solution39.3%Medium
Greedy, String· 1 company
1888. Minimum Number of Flips to Make the Binary String AlternatingVideo
Solution53.5%Medium
Dynamic Programming, Greedy +2· 5 companies
1898. Maximum Number of Removable CharactersVideo
Solution47.6%Medium
Array, Binary Search +2· 3 companies
1904. The Number of Full Rounds You Have PlayedVideo
Solution43.9%Medium
Math, String· 1 company
1910. Remove All Occurrences of a SubstringVideo
Solution78.2%Medium
Simulation, Stack +1· 13 companies
1915. Number of Wonderful SubstringsVideo
Solution66.8%Medium
Bit Manipulation, Hash Table +2· 2 companies
1927. Sum GameVideo
Solution63.5%Medium
Game Theory, Greedy +2· 1 company
1930. Unique Length-3 Palindromic SubsequencesVideo
Solution73.8%Medium
Bit Manipulation, Hash Table +2· 6 companies
1946. Largest Number After Mutating SubstringVideo
Solution38.5%Medium
Array, Greedy +1· 1 company
1963. Minimum Number of Swaps to Make the String BalancedVideo
Solution78.0%Medium
Greedy, Stack +2· 12 companies
1980. Find Unique Binary StringVideo
Solution81.2%Medium
Array, Backtracking +2· 5 companies
1985. Find the Kth Largest Integer in the ArrayVideo
Solution48.3%Medium
Array, Divide and Conquer +4· 1 company
2002. Maximum Product of the Length of Two Palindromic SubsequencesVideo
Solution63.0%Medium
Backtracking, Bit Manipulation +3· 2 companies
2023. Number of Pairs of Strings With Concatenation Equal to TargetVideo
Solution75.6%Medium
Array, Counting +2· 2 companies
2024. Maximize the Confusion of an ExamVideo
Solution70.4%Medium
Binary Search, Prefix Sum +2· 4 companies
2038. Remove Colored Pieces if Both Neighbors are the Same ColorVideo
Solution62.8%Medium
Game Theory, Greedy +2· 3 companies
2055. Plates Between CandlesVideo
Solution47.4%Medium
Array, Binary Search +2· 3 companies
2063. Vowels of All SubstringsVideo
Solution55.3%Medium
Combinatorics, Dynamic Programming +2· 2 companies
2067. Number of Equal Count SubstringsVideoPremium
Solution45.1%Medium
Counting, Prefix Sum +1· 1 company
2075. Decode the Slanted CiphertextVideo
Solution67.3%Medium
Simulation, String· 3 companies
2083. Substrings That Begin and End With the Same LetterVideoPremium
Solution74.1%Medium
Counting, Hash Table +3
Showing 201–250 of 437