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Problems

327 problems

Has videoPremium onlyReset
Array1,212Hash Table473String437Math331Greedy330Dynamic Programming327Sorting302Depth-First Search208Binary Search189Breadth-First Search166Matrix163Tree158Prefix Sum155Two Pointers150Database137All topics

Medium · 327 results

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TitleSolutionAcceptDifficultyTopics
474. Ones and ZeroesVideo
Solution53.7%Medium
Array, Dynamic Programming +1· 5 companies
486. Predict the WinnerVideo
Solution59.7%Medium
Array, Dynamic Programming +3· 6 companies
487. Max Consecutive Ones IIVideoPremium
Solution52.0%Medium
Array, Dynamic Programming +1· 4 companies
494. Target SumVideo
Solution52.6%Medium
Array, Backtracking +1· 10 companies
516. Longest Palindromic SubsequenceVideo
Solution65.8%Medium
Dynamic Programming, String· 15 companies
518. Coin Change IIVideo
Solution59.1%Medium
Array, Dynamic Programming· 11 companies
526. Beautiful ArrangementVideo
Solution64.9%Medium
Array, Backtracking +3· 6 companies
542. 01 MatrixVideo
Solution54.7%Medium
Array, Breadth-First Search +2· 14 companies
553. Optimal DivisionVideo
Solution64.0%Medium
Array, Dynamic Programming +1· 1 company
562. Longest Line of Consecutive One in MatrixVideoPremium
Solution50.5%Medium
Array, Dynamic Programming +1· 1 company
576. Out of Boundary PathsVideo
Solution48.1%Medium
Dynamic Programming· 3 companies
583. Delete Operation for Two StringsVideo
Solution66.0%Medium
Dynamic Programming, String· 4 companies
634. Find the Derangement of An ArrayVideoPremium
Solution41.9%Medium
Dynamic Programming, Math· 1 company
638. Shopping OffersVideo
Solution52.9%Medium
Array, Backtracking +4· 6 companies
646. Maximum Length of Pair ChainVideo
Solution62.2%Medium
Array, Dynamic Programming +2· 2 companies
647. Palindromic SubstringsVideo
Solution73.2%Medium
Dynamic Programming, String +1· 25 companies
650. 2 Keys KeyboardVideo
Solution59.6%Medium
Dynamic Programming, Math· 7 companies
651. 4 Keys KeyboardVideoPremium
Solution56.5%Medium
Dynamic Programming, Math· 2 companies
673. Number of Longest Increasing SubsequenceVideo
Solution52.8%Medium
Array, Binary Indexed Tree +2· 6 companies
678. Valid Parenthesis StringVideo
Solution42.8%Medium
Dynamic Programming, Greedy +2· 15 companies
688. Knight Probability in ChessboardVideo
Solution57.0%Medium
Dynamic Programming· 6 companies
698. Partition to K Equal Sum SubsetsVideo
Solution38.6%Medium
Array, Backtracking +4· 8 companies
712. Minimum ASCII Delete Sum for Two StringsVideo
Solution70.9%Medium
Dynamic Programming, String· 4 companies
714. Best Time to Buy and Sell Stock with Transaction FeeVideo
Solution72.4%Medium
Array, Dynamic Programming +1· 8 companies
718. Maximum Length of Repeated SubarrayVideo
Solution51.5%Medium
Array, Binary Search +4· 7 companies
740. Delete and EarnVideo
Solution57.7%Medium
Array, Dynamic Programming +1· 12 companies
750. Number Of Corner RectanglesVideoPremium
Solution67.8%Medium
Array, Dynamic Programming +2· 1 company
764. Largest Plus SignVideo
Solution49.7%Medium
Array, Dynamic Programming· 2 companies
787. Cheapest Flights Within K StopsVideo
Solution42.7%Medium
Breadth-First Search, Depth-First Search +4· 18 companies
788. Rotated DigitsVideo
Solution63.9%Medium
Dynamic Programming, Math· 6 companies
790. Domino and Tromino TilingVideo
Solution51.4%Medium
Dynamic Programming· 5 companies
792. Number of Matching SubsequencesVideo
Solution50.8%Medium
Array, Binary Search +5· 9 companies
799. Champagne TowerVideo
Solution64.1%Medium
Dynamic Programming· 6 companies
808. Soup ServingsVideo
Solution59.7%Medium
Dynamic Programming, Math +1· 3 companies
813. Largest Sum of AveragesVideo
Solution55.5%Medium
Array, Dynamic Programming +1· 2 companies
823. Binary Trees With FactorsVideo
Solution52.9%Medium
Array, Dynamic Programming +2· 2 companies
837. New 21 GameVideo
Solution52.0%Medium
Dynamic Programming, Math +2· 5 companies
838. Push DominoesVideo
Solution63.0%Medium
Dynamic Programming, String +1· 6 companies
845. Longest Mountain in ArrayVideo
Solution42.6%Medium
Array, Dynamic Programming +2· 10 companies
873. Length of Longest Fibonacci SubsequenceVideo
Solution57.5%Medium
Array, Dynamic Programming +1· 7 companies
877. Stone GameVideo
Solution77.0%Medium
Array, Dynamic Programming +2· 4 companies
894. All Possible Full Binary TreesVideo
Solution82.8%Medium
Binary Tree, Dynamic Programming +3· 5 companies
898. Bitwise ORs of SubarraysVideo
Solution56.8%Medium
Array, Bit Manipulation +1· 7 companies
907. Sum of Subarray MinimumsVideo
Solution39.0%Medium
Array, Dynamic Programming +2· 13 companies
918. Maximum Sum Circular SubarrayVideo
Solution51.5%Medium
Array, Divide and Conquer +3· 12 companies
926. Flip String to Monotone IncreasingVideo
Solution61.5%Medium
Dynamic Programming, String· 5 companies
931. Minimum Falling Path SumVideo
Solution60.8%Medium
Array, Dynamic Programming +1· 8 companies
935. Knight DialerVideo
Solution61.8%Medium
Dynamic Programming· 6 companies
978. Longest Turbulent SubarrayVideo
Solution49.6%Medium
Array, Dynamic Programming +1· 3 companies
983. Minimum Cost For TicketsVideo
Solution67.4%Medium
Array, Dynamic Programming· 12 companies
Showing 51–100 of 327