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Problems

103 problems

Has videoPremium onlyReset
Array578Dynamic Programming332String191Math187Binary Search136Hash Table134Sorting106Greedy104Bit Manipulation103Graph96Depth-First Search91Heap (Priority Queue)78Prefix Sum77Matrix75Breadth-First Search71All topics

Hard · 103 results

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TitleSolutionAcceptDifficultyTopics
411. Minimum Unique Word AbbreviationVideoPremium
–40.5%Hard
Array, Backtracking +2· 2 companies
465. Optimal Account BalancingVideoPremium
Solution50.9%Hard
Array, Backtracking +3· 12 companies
691. Stickers to Spell WordVideo
Solution51.3%Hard
Array, Backtracking +4· 4 companies
782. Transform to ChessboardVideo
Solution51.9%Hard
Array, Bit Manipulation +2· 2 companies
805. Split Array With Same AverageVideo
Solution27.5%Hard
Array, Bit Manipulation +3· 6 companies
810. Chalkboard XOR GameVideo
Solution67.3%Hard
Array, Bit Manipulation +3· 3 companies
847. Shortest Path Visiting All NodesVideo
Solution66.5%Hard
Bit Manipulation, Bitmask +3· 4 companies
864. Shortest Path to Get All KeysVideo
Solution55.0%Hard
Array, Bit Manipulation +2· 7 companies
943. Find the Shortest SuperstringVideo
Solution45.8%Hard
Array, Bit Manipulation +3· 2 companies
980. Unique Paths IIIVideo
Solution82.8%Hard
Array, Backtracking +2· 7 companies
982. Triples with Bitwise AND Equal To ZeroVideo
Solution60.7%Hard
Array, Bit Manipulation +1· 2 companies
995. Minimum Number of K Consecutive Bit FlipsVideo
Solution62.7%Hard
Array, Bit Manipulation +3· 2 companies
996. Number of Squareful ArraysVideo
Solution51.9%Hard
Array, Backtracking +5· 2 companies
1125. Smallest Sufficient TeamVideo
Solution55.5%Hard
Array, Bit Manipulation +2· 1 company
1178. Number of Valid Words for Each PuzzleVideo
Solution47.8%Hard
Array, Bit Manipulation +3· 1 company
1255. Maximum Score Words Formed by LettersVideo
Solution81.9%Hard
Array, Backtracking +4· 3 companies
1284. Minimum Number of Flips to Convert Binary Matrix to Zero MatrixVideo
Solution72.9%Hard
Array, Bit Manipulation +3· 1 company
1349. Maximum Students Taking ExamVideo
Solution54.8%Hard
Array, Bit Manipulation +3· 3 companies
1434. Number of Ways to Wear Different Hats to Each OtherVideo
Solution47.0%Hard
Array, Bit Manipulation +2· 3 companies
1494. Parallel Courses IIVideo
Solution31.3%Hard
Bit Manipulation, Bitmask +2· 3 companies
1521. Find a Value of a Mysterious Function Closest to TargetVideo
Solution48.3%Hard
Array, Binary Search +2· 1 company
1542. Find Longest Awesome SubstringVideo
Solution47.4%Hard
Bit Manipulation, Hash Table +1· 1 company
1595. Minimum Cost to Connect Two Groups of PointsVideo
Solution50.9%Hard
Array, Bit Manipulation +3· 1 company
1601. Maximum Number of Achievable Transfer RequestsVideo
Solution64.5%Hard
Array, Backtracking +2· 1 company
1611. Minimum One Bit Operations to Make Integers ZeroVideo
Solution78.5%Hard
Bit Manipulation, Dynamic Programming +1· 5 companies
1617. Count Subtrees With Max Distance Between CitiesVideo
Solution67.4%Hard
Bit Manipulation, Bitmask +3
1655. Distribute Repeating IntegersVideo
Solution41.1%Hard
Array, Backtracking +3· 1 company
1659. Maximize Grid HappinessVideo
Solution41.6%Hard
Bit Manipulation, Bitmask +2· 1 company
1681. Minimum IncompatibilityVideo
Solution41.8%Hard
Array, Bit Manipulation +2· 1 company
1707. Maximum XOR With an Element From ArrayVideo
Solution59.6%Hard
Array, Bit Manipulation +1· 1 company
1723. Find Minimum Time to Finish All JobsVideo
Solution46.7%Hard
Array, Backtracking +3· 5 companies
1755. Closest Subsequence SumVideo
Solution45.3%Hard
Array, Bit Manipulation +3· 3 companies
1787. Make the XOR of All Segments Equal to ZeroVideo
Solution41.1%Hard
Array, Bit Manipulation +1· 2 companies
1799. Maximize Score After N OperationsVideo
Solution57.8%Hard
Array, Backtracking +5· 2 companies
1803. Count Pairs With XOR in a RangeVideo
Solution46.9%Hard
Array, Bit Manipulation +1· 1 company
1815. Maximum Number of Groups Getting Fresh DonutsVideo
Solution41.7%Hard
Array, Bit Manipulation +3· 1 company
1835. Find XOR Sum of All Pairs Bitwise ANDVideo
Solution62.6%Hard
Array, Bit Manipulation +1· 1 company
1879. Minimum XOR Sum of Two ArraysVideo
Solution52.0%Hard
Array, Bit Manipulation +2· 1 company
1938. Maximum Genetic Difference QueryVideo
Solution48.6%Hard
Array, Bit Manipulation +3· 1 company
1994. The Number of Good SubsetsVideo
Solution37.8%Hard
Array, Bit Manipulation +3· 2 companies
2035. Partition Array Into Two Arrays to Minimize Sum DifferenceVideo
Solution24.4%Hard
Array, Binary Search +5· 9 companies
2151. Maximum Good People Based on StatementsVideo
Solution52.9%Hard
Array, Backtracking +2· 3 companies
2157. Groups of StringsVideo
Solution28.2%Hard
Bit Manipulation, String +1· 1 company
2172. Maximum AND Sum of ArrayVideo
Solution51.4%Hard
Array, Bit Manipulation +2· 1 company
2247. Maximum Cost of Trip With K HighwaysPremium
Solution50.2%Hard
Bit Manipulation, Bitmask +2
2306. Naming a CompanyVideo
Solution46.4%Hard
Array, Bit Manipulation +3· 1 company
2322. Minimum Score After Removals on a TreeVideo
Solution76.2%Hard
Array, Bit Manipulation +2· 4 companies
2354. Number of Excellent PairsVideo
Solution49.7%Hard
Array, Binary Search +2· 1 company
2403. Minimum Time to Kill All MonstersVideoPremium
Solution56.3%Hard
Array, Bit Manipulation +2· 1 company
2732. Find a Good Subset of the MatrixVideo
Solution45.4%Hard
Array, Bit Manipulation +2
Showing 1–50 of 103