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2,093 problems

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Array1,196 Hash Table465 String434 Greedy327 Math327 Dynamic Programming324 Sorting300 Depth-First Search208 Binary Search187 Breadth-First Search165 Matrix163 Tree157 Prefix Sum153 Two Pointers148 Database135 All topics

Medium · With video · 2,093 results

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TitleSolutionAcceptDifficultyTopics

807. Max Increase to Keep City SkylineVideo

Solution86.2%Medium

Array, Greedy +1· 3 companies

808. Soup ServingsVideo

Solution59.7%Medium

Dynamic Programming, Math +1· 3 companies

809. Expressive WordsVideo

Solution46.8%Medium

Array, String +1· 2 companies

811. Subdomain Visit CountVideo

Solution77.2%Medium

Array, Counting +2· 4 companies

813. Largest Sum of AveragesVideo

Solution55.5%Medium

Array, Dynamic Programming +1· 2 companies

814. Binary Tree PruningVideo

Solution72.3%Medium

Binary Tree, Depth-First Search +1· 5 companies

816. Ambiguous CoordinatesVideo

Solution56.4%Medium

Backtracking, Enumeration +1· 1 company

817. Linked List ComponentsVideo

Solution58.4%Medium

Array, Hash Table +1· 4 companies

820. Short Encoding of WordsVideo

Solution61.0%Medium

Array, Hash Table +2· 1 company

822. Card Flipping GameVideo

Solution51.3%Medium

Array, Hash Table· 1 company

823. Binary Trees With FactorsVideo

Solution52.9%Medium

Array, Dynamic Programming +2· 2 companies

825. Friends Of Appropriate AgesVideo

Solution49.9%Medium

Array, Binary Search +2· 3 companies

826. Most Profit Assigning WorkVideo

Solution56.4%Medium

Array, Binary Search +3· 5 companies

831. Masking Personal InformationVideo

Solution56.2%Medium

String· 3 companies

833. Find And Replace in StringVideo

Solution50.9%Medium

Array, Hash Table +2· 2 companies

835. Image OverlapVideo

Solution70.6%Medium

Array, Matrix· 1 company

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

840. Magic Squares In GridVideo

Solution55.1%Medium

Array, Hash Table +2· 5 companies

841. Keys and RoomsVideo

Solution76.2%Medium

Breadth-First Search, Depth-First Search +1· 10 companies

842. Split Array into Fibonacci SequenceVideo

Solution40.3%Medium

Backtracking, String· 2 companies

845. Longest Mountain in ArrayVideo

Solution42.6%Medium

Array, Dynamic Programming +2· 10 companies

846. Hand of StraightsVideo

Solution58.5%Medium

Array, Greedy +2· 6 companies

848. Shifting LettersVideo

Solution46.1%Medium

Array, Prefix Sum +1· 3 companies

849. Maximize Distance to Closest PersonVideo

Solution49.7%Medium

Array· 8 companies

851. Loud and RichVideo

Solution63.9%Medium

Array, Depth-First Search +2· 6 companies

852. Peak Index in a Mountain ArrayVideo

Solution66.9%Medium

Array, Binary Search· 10 companies

853. Car FleetVideo

Solution55.5%Medium

Array, Monotonic Stack +2· 11 companies

855. Exam RoomVideo

Solution43.6%Medium

Design, Heap (Priority Queue) +1· 6 companies

856. Score of ParenthesesVideo

Solution66.0%Medium

Stack, String· 5 companies

858. Mirror ReflectionVideo

Solution62.3%Medium

Geometry, Math +1· 3 companies

861. Score After Flipping MatrixVideo

Solution80.3%Medium

Array, Bit Manipulation +2· 3 companies

863. All Nodes Distance K in Binary TreeVideo

Solution68.1%Medium

Binary Tree, Breadth-First Search +3· 16 companies

865. Smallest Subtree with all the Deepest NodesVideo

Solution77.5%Medium

Binary Tree, Breadth-First Search +3· 4 companies

866. Prime PalindromeVideo

Solution28.6%Medium

Math, Number Theory· 3 companies

869. Reordered Power of 2Video

Solution66.0%Medium

Counting, Enumeration +3· 5 companies

870. Advantage ShuffleVideo

Solution55.0%Medium

Array, Greedy +2· 3 companies

873. Length of Longest Fibonacci SubsequenceVideo

Solution57.5%Medium

Array, Dynamic Programming +1· 7 companies

874. Walking Robot SimulationVideo

Solution64.5%Medium

Array, Hash Table +1· 7 companies

875. Koko Eating BananasVideo

Solution50.4%Medium

Array, Binary Search· 47 companies

877. Stone GameVideo

Solution77.0%Medium

Array, Dynamic Programming +2· 4 companies

880. Decoded String at IndexVideo

Solution37.3%Medium

Stack, String· 5 companies

881. Boats to Save PeopleVideo

Solution62.7%Medium

Array, Greedy +2· 11 companies

885. Spiral Matrix IIIVideo

Solution84.6%Medium

Array, Matrix +1· 8 companies

886. Possible BipartitionVideo

Solution53.0%Medium

Breadth-First Search, Depth-First Search +2· 11 companies

889. Construct Binary Tree from Preorder and Postorder TraversalVideo

Solution78.0%Medium

Array, Binary Tree +3· 6 companies

890. Find and Replace PatternVideo

Solution76.8%Medium

Array, Hash Table +1· 2 companies

893. Groups of Special-Equivalent StringsVideo

Solution73.5%Medium

Array, Hash Table +2· 1 company

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

Showing 451–500 of 2,093