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Problems

2,237 problems

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

2,237 results

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TitleSolutionAcceptDifficultyTopics
946. Validate Stack SequencesVideo
Solution70.8%Medium
Array, Simulation +1· 6 companies
948. Bag of TokensVideo
Solution59.5%Medium
Array, Greedy +2· 4 companies
949. Largest Time for Given DigitsVideo
Solution36.0%Medium
Array, Enumeration +1· 3 companies
950. Reveal Cards In Increasing OrderVideo
Solution83.6%Medium
Array, Queue +2· 4 companies
952. Largest Component Size by Common FactorVideo
Solution43.8%Hard
Array, Hash Table +3· 2 companies
953. Verifying an Alien DictionaryVideo
Solution55.9%Easy
Array, Hash Table +1· 8 companies
954. Array of Doubled PairsVideo
Solution39.7%Medium
Array, Greedy +2· 1 company
955. Delete Columns to Make Sorted IIVideo
Solution49.7%Medium
Array, Greedy +1· 3 companies
956. Tallest BillboardVideo
Solution52.0%Hard
Array, Dynamic Programming· 6 companies
957. Prison Cells After N DaysVideo
Solution39.0%Medium
Array, Bit Manipulation +2· 1 company
959. Regions Cut By SlashesVideo
Solution77.8%Medium
Array, Breadth-First Search +4· 6 companies
960. Delete Columns to Make Sorted IIIVideo
Solution72.7%Hard
Array, Dynamic Programming +1· 2 companies
961. N-Repeated Element in Size 2N ArrayVideo
Solution79.9%Easy
Array, Hash Table· 6 companies
962. Maximum Width RampVideo
Solution56.0%Medium
Array, Monotonic Stack +1· 8 companies
963. Minimum Area Rectangle IIVideo
Solution55.9%Medium
Array, Geometry +1· 2 companies
966. Vowel SpellcheckerVideo
Solution61.4%Medium
Array, Hash Table +1· 7 companies
969. Pancake SortingVideo
Solution71.7%Medium
Array, Greedy +2· 3 companies
973. K Closest Points to OriginVideo
Solution69.4%Medium
Array, Divide and Conquer +5· 17 companies
974. Subarray Sums Divisible by KVideo
Solution56.7%Medium
Array, Hash Table +1· 11 companies
975. Odd Even JumpVideo
Solution41.7%Hard
Array, Dynamic Programming +3· 3 companies
976. Largest Perimeter TriangleVideo
Solution62.1%Easy
Array, Greedy +2· 5 companies
977. Squares of a Sorted ArrayVideo
Solution73.7%Easy
Array, Sorting +1· 17 companies
978. Longest Turbulent SubarrayVideo
Solution49.6%Medium
Array, Dynamic Programming +1· 3 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
983. Minimum Cost For TicketsVideo
Solution67.4%Medium
Array, Dynamic Programming· 12 companies
985. Sum of Even Numbers After QueriesVideo
Solution68.8%Medium
Array, Simulation· 1 company
986. Interval List IntersectionsVideo
Solution73.0%Medium
Array, Two Pointers· 12 companies
989. Add to Array-Form of IntegerVideo
Solution45.6%Easy
Array, Math· 4 companies
990. Satisfiability of Equality EquationsVideo
Solution52.2%Medium
Array, Graph +2· 6 companies
992. Subarrays with K Different IntegersVideo
Solution69.0%Hard
Array, Counting +2· 18 companies
994. Rotting OrangesVideo
Solution59.5%Medium
Array, Breadth-First Search +1· 52 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
997. Find the Town JudgeVideo
Solution51.2%Easy
Array, Graph +1· 7 companies
999. Available Captures for RookVideo
Solution72.2%Easy
Array, Matrix +1· 2 companies
1000. Minimum Cost to Merge StonesVideo
Solution47.0%Hard
Array, Dynamic Programming +1· 4 companies
1001. Grid IlluminationVideo
Solution39.7%Hard
Array, Hash Table· 1 company
1002. Find Common CharactersVideo
Solution74.6%Easy
Array, Hash Table +1· 6 companies
1004. Max Consecutive Ones IIIVideo
Solution68.6%Medium
Array, Binary Search +2· 20 companies
1005. Maximize Sum Of Array After K NegationsVideo
Solution54.3%Easy
Array, Greedy +1· 4 companies
1007. Minimum Domino Rotations For Equal RowVideo
Solution56.5%Medium
Array, Greedy· 4 companies
1008. Construct Binary Search Tree from Preorder TraversalVideo
Solution84.7%Medium
Array, Binary Search Tree +4· 5 companies
1010. Pairs of Songs With Total Durations Divisible by 60Video
Solution53.6%Medium
Array, Counting +1· 7 companies
1011. Capacity To Ship Packages Within D DaysVideo
Solution74.8%Medium
Array, Binary Search· 20 companies
1013. Partition Array Into Three Parts With Equal SumVideo
Solution43.2%Easy
Array, Greedy· 5 companies
1014. Best Sightseeing PairVideo
Solution62.7%Medium
Array, Dynamic Programming· 6 companies
1018. Binary Prefix Divisible By 5Video
Solution53.5%Easy
Array, Bit Manipulation· 3 companies
1019. Next Greater Node In Linked ListVideo
Solution64.6%Medium
Array, Linked List +2· 4 companies
1020. Number of EnclavesVideo
Solution72.2%Medium
Array, Breadth-First Search +3· 5 companies
Showing 451–500 of 2,237