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Problems

786 problems

Has videoPremium onlyReset
Array2,209String870Hash Table786Math682Dynamic Programming666Sorting504Greedy480Binary Search352Depth-First Search335Database303Bit Manipulation283Matrix278Tree261Breadth-First Search255Two Pointers249All topics

With video · 786 results

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TitleSolutionAcceptDifficultyTopics
554. Brick WallVideo
Solution56.1%Medium
Array, Hash Table· 5 companies
560. Subarray Sum Equals KVideo
Solution48.2%Medium
Array, Hash Table +1· 47 companies
567. Permutation in StringVideo
Solution49.8%Medium
Hash Table, Sliding Window +2· 16 companies
575. Distribute CandiesVideo
Solution71.5%Easy
Array, Hash Table· 3 companies
582. Kill ProcessVideoPremium
Solution70.4%Medium
Array, Breadth-First Search +3· 4 companies
588. Design In-Memory File SystemVideoPremium
Solution48.0%Hard
Design, Hash Table +3· 16 companies
594. Longest Harmonious SubsequenceVideo
Solution65.1%Easy
Array, Counting +3· 7 companies
599. Minimum Index Sum of Two ListsVideo
Solution60.8%Easy
Array, Hash Table +1· 4 companies
609. Find Duplicate File in SystemVideo
Solution67.6%Medium
Array, Hash Table +1· 7 companies
616. Add Bold Tag in StringVideoPremium
Solution51.4%Medium
Array, Hash Table +3· 4 companies
621. Task SchedulerVideo
Solution64.0%Medium
Array, Counting +4· 24 companies
632. Smallest Range Covering Elements from K ListsVideo
Solution70.3%Hard
Array, Greedy +4· 10 companies
635. Design Log Storage SystemVideoPremium
Solution59.8%Medium
Design, Hash Table +2· 4 companies
645. Set MismatchVideo
Solution43.4%Easy
Array, Bit Manipulation +2· 7 companies
648. Replace WordsVideo
Solution68.7%Medium
Array, Hash Table +2· 4 companies
652. Find Duplicate SubtreesVideo
Solution60.6%Medium
Binary Tree, Depth-First Search +2· 8 companies
653. Two Sum IV - Input is a BSTVideo
Solution63.7%Easy
Binary Search Tree, Binary Tree +5· 8 companies
659. Split Array into Consecutive SubsequencesVideo
Solution52.7%Medium
Array, Greedy +2· 2 companies
666. Path Sum IVVideoPremium
Solution62.5%Medium
Array, Binary Tree +3· 1 company
676. Implement Magic DictionaryVideo
Solution57.8%Medium
Depth-First Search, Design +3· 2 companies
677. Map Sum PairsVideo
Solution57.4%Medium
Design, Hash Table +2· 3 companies
681. Next Closest TimeVideoPremium
Solution46.8%Medium
Backtracking, Enumeration +2· 1 company
690. Employee ImportanceVideo
Solution69.4%Medium
Array, Breadth-First Search +3· 6 companies
692. Top K Frequent WordsVideo
Solution60.6%Medium
Bucket Sort, Counting +5· 23 companies
694. Number of Distinct IslandsVideoPremium
Solution62.8%Medium
Breadth-First Search, Depth-First Search +3· 12 companies
697. Degree of an ArrayVideo
Solution58.8%Easy
Array, Hash Table· 12 companies
705. Design HashSetVideo
Solution67.9%Easy
Array, Design +3· 6 companies
706. Design HashMapVideo
Solution66.5%Easy
Array, Design +3· 13 companies
710. Random Pick with BlacklistVideo
Solution35.4%Hard
Array, Binary Search +4· 3 companies
711. Number of Distinct Islands IIVideoPremium
Solution55.3%Hard
Breadth-First Search, Depth-First Search +3· 2 companies
720. Longest Word in DictionaryVideo
Solution55.2%Medium
Array, Hash Table +3· 3 companies
721. Accounts MergeVideo
Solution62.2%Medium
Array, Breadth-First Search +5· 17 companies
726. Number of AtomsVideo
Solution65.1%Hard
Hash Table, Sorting +2· 8 companies
734. Sentence SimilarityVideoPremium
Solution44.5%Easy
Array, Hash Table +1· 1 company
736. Parse Lisp ExpressionVideo
Solution54.1%Hard
Hash Table, Recursion +2· 4 companies
737. Sentence Similarity IIVideoPremium
Solution51.2%Medium
Array, Breadth-First Search +4· 4 companies
740. Delete and EarnVideo
Solution57.7%Medium
Array, Dynamic Programming +1· 12 companies
745. Prefix and Suffix SearchVideo
Solution41.2%Hard
Array, Design +3· 3 companies
748. Shortest Completing WordVideo
Solution63.5%Easy
Array, Hash Table +1· 1 company
752. Open the LockVideo
Solution61.2%Medium
Array, Breadth-First Search +2· 15 companies
758. Bold Words in StringVideoPremium
Solution53.2%Medium
Array, Hash Table +3· 1 company
760. Find Anagram MappingsVideoPremium
Solution83.8%Easy
Array, Hash Table· 1 company
763. Partition LabelsVideo
Solution81.8%Medium
Greedy, Hash Table +2· 9 companies
767. Reorganize StringVideo
Solution57.5%Medium
Counting, Greedy +4· 20 companies
770. Basic Calculator IVVideo
Solution49.8%Hard
Hash Table, Math +3· 3 companies
771. Jewels and StonesVideo
Solution89.5%Easy
Hash Table, String· 6 companies
781. Rabbits in ForestVideo
Solution58.0%Medium
Array, Greedy +2· 8 companies
791. Custom Sort StringVideo
Solution72.3%Medium
Hash Table, Sorting +1· 5 companies
792. Number of Matching SubsequencesVideo
Solution50.8%Medium
Array, Binary Search +5· 9 companies
804. Unique Morse Code WordsVideo
Solution83.6%Easy
Array, Hash Table +1· 3 companies
Showing 101–150 of 786