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Problems

508 problems

Has videoPremium onlyReset
Array2,237String877Hash Table797Math691Dynamic Programming673Sorting508Greedy485Binary Search357Depth-First Search338Database308Bit Manipulation286Matrix279Tree264Breadth-First Search257Prefix Sum252All topics

508 results

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TitleSolutionAcceptDifficultyTopics
532. K-diff Pairs in an ArrayVideo
Solution46.3%Medium
Array, Binary Search +3· 8 companies
539. Minimum Time DifferenceVideo
Solution62.7%Medium
Array, Math +2· 9 companies
561. Array PartitionVideo
Solution82.2%Easy
Array, Counting Sort +2· 5 companies
581. Shortest Unsorted Continuous SubarrayVideo
Solution38.7%Medium
Array, Greedy +4· 9 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
611. Valid Triangle NumberVideo
Solution56.8%Medium
Array, Binary Search +3· 9 companies
621. Task SchedulerVideo
Solution64.0%Medium
Array, Counting +4· 24 companies
628. Maximum Product of Three NumbersVideo
Solution48.0%Easy
Array, Math +1· 15 companies
630. Course Schedule IIIVideo
Solution42.1%Hard
Array, Greedy +2· 4 companies
632. Smallest Range Covering Elements from K ListsVideo
Solution70.3%Hard
Array, Greedy +4· 10 companies
642. Design Search Autocomplete SystemVideoPremium
Solution49.9%Hard
Data Stream, Depth-First Search +5· 12 companies
645. Set MismatchVideo
Solution43.4%Easy
Array, Bit Manipulation +2· 7 companies
646. Maximum Length of Pair ChainVideo
Solution62.2%Medium
Array, Dynamic Programming +2· 2 companies
658. Find K Closest ElementsVideo
Solution50.1%Medium
Array, Binary Search +4· 18 companies
692. Top K Frequent WordsVideo
Solution60.6%Medium
Bucket Sort, Counting +5· 23 companies
710. Random Pick with BlacklistVideo
Solution35.4%Hard
Array, Binary Search +4· 3 companies
719. Find K-th Smallest Pair DistanceVideo
Solution46.4%Hard
Array, Binary Search +2· 5 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
747. Largest Number At Least Twice of OthersVideo
Solution53.4%Easy
Array, Sorting· 4 companies
757. Set Intersection Size At Least TwoVideo
Solution58.0%Hard
Array, Greedy +1· 6 companies
759. Employee Free TimeVideoPremium
Solution72.9%Hard
Array, Heap (Priority Queue) +1· 12 companies
767. Reorganize StringVideo
Solution57.5%Medium
Counting, Greedy +4· 20 companies
768. Max Chunks To Make Sorted IIVideo
Solution54.7%Hard
Array, Greedy +3· 5 companies
769. Max Chunks To Make SortedVideo
Solution64.1%Medium
Array, Greedy +3· 7 companies
786. K-th Smallest Prime FractionVideo
Solution69.0%Medium
Array, Binary Search +3· 1 company
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
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
833. Find And Replace in StringVideo
Solution50.9%Medium
Array, Hash Table +2· 2 companies
846. Hand of StraightsVideo
Solution58.5%Medium
Array, Greedy +2· 6 companies
853. Car FleetVideo
Solution55.5%Medium
Array, Monotonic Stack +2· 11 companies
857. Minimum Cost to Hire K WorkersVideo
Solution63.5%Hard
Array, Greedy +2· 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
881. Boats to Save PeopleVideo
Solution62.7%Medium
Array, Greedy +2· 11 companies
888. Fair Candy SwapVideo
Solution65.9%Easy
Array, Binary Search +2· 6 companies
891. Sum of Subsequence WidthsVideo
Solution41.1%Hard
Array, Math +1
893. Groups of Special-Equivalent StringsVideo
Solution73.5%Medium
Array, Hash Table +2· 1 company
899. Orderly QueueVideo
Solution67.4%Hard
Math, Sorting +1· 2 companies
905. Sort Array By ParityVideo
Solution76.2%Easy
Array, Sorting +1· 8 companies
910. Smallest Range IIVideo
Solution38.4%Medium
Array, Greedy +2· 3 companies
912. Sort an ArrayVideo
Solution55.9%Medium
Array, Bucket Sort +6· 12 companies
922. Sort Array By Parity IIVideo
Solution71.4%Easy
Array, Sorting +1· 6 companies
923. 3Sum With MultiplicityVideo
Solution46.2%Medium
Array, Counting +3· 4 companies
937. Reorder Data in Log FilesVideo
Solution56.6%Medium
Array, Sorting +1· 4 companies
Showing 51–100 of 508