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Problems

150 problems

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

Medium · 150 results

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TitleSolutionAcceptDifficultyTopics
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
870. Advantage ShuffleVideo
Solution55.0%Medium
Array, Greedy +2· 3 companies
881. Boats to Save PeopleVideo
Solution62.7%Medium
Array, Greedy +2· 11 companies
923. 3Sum With MultiplicityVideo
Solution46.2%Medium
Array, Counting +3· 4 companies
948. Bag of TokensVideo
Solution59.5%Medium
Array, Greedy +2· 4 companies
969. Pancake SortingVideo
Solution71.7%Medium
Array, Greedy +2· 3 companies
986. Interval List IntersectionsVideo
Solution73.0%Medium
Array, Two Pointers· 12 companies
1023. Camelcase MatchingVideo
Solution65.8%Medium
Array, String +3· 2 companies
1040. Moving Stones Until Consecutive IIVideo
Solution59.4%Medium
Array, Math +2· 1 company
1048. Longest String ChainVideo
Solution63.5%Medium
Array, Dynamic Programming +4· 16 companies
1055. Shortest Way to Form StringVideoPremium
Solution61.6%Medium
Binary Search, Greedy +2· 3 companies
1214. Two Sum BSTsVideoPremium
Solution68.2%Medium
Binary Search, Binary Search Tree +5· 1 company
1229. Meeting SchedulerVideoPremium
Solution55.3%Medium
Array, Sorting +1· 11 companies
1237. Find Positive Integer Solution for a Given EquationVideo
Solution70.3%Medium
Binary Search, Interactive +2· 2 companies
1265. Print Immutable Linked List in ReverseVideoPremium
Solution94.0%Medium
Linked List, Recursion +2
1471. The k Strongest Values in an ArrayVideo
Solution62.6%Medium
Array, Sorting +1· 1 company
1498. Number of Subsequences That Satisfy the Given Sum ConditionVideo
Solution49.2%Medium
Array, Binary Search +2· 6 companies
1508. Range Sum of Sorted Subarray SumsVideo
Solution63.2%Medium
Array, Binary Search +2· 3 companies
1570. Dot Product of Two Sparse VectorsVideoPremium
Solution89.9%Medium
Array, Design +2· 12 companies
1574. Shortest Subarray to be Removed to Make Array SortedVideo
Solution51.2%Medium
Array, Binary Search +3· 9 companies
1577. Number of Ways Where Square of Number Is Equal to Product of Two NumbersVideo
Solution43.9%Medium
Array, Hash Table +2
1616. Split Two Strings to Make PalindromeVideo
Solution32.8%Medium
String, Two Pointers· 1 company
1634. Add Two Polynomials Represented as Linked ListsVideoPremium
Solution61.1%Medium
Linked List, Math +1· 1 company
1650. Lowest Common Ancestor of a Binary Tree IIIVideoPremium
Solution83.0%Medium
Binary Tree, Hash Table +2· 10 companies
1679. Max Number of K-Sum PairsVideo
Solution57.5%Medium
Array, Hash Table +2· 7 companies
1712. Ways to Split Array Into Three SubarraysVideo
Solution34.2%Medium
Array, Binary Search +2· 3 companies
1721. Swapping Nodes in a Linked ListVideo
Solution69.9%Medium
Linked List, Two Pointers· 6 companies
1750. Minimum Length of String After Deleting Similar EndsVideo
Solution55.9%Medium
String, Two Pointers· 3 companies
1754. Largest Merge Of Two StringsVideo
Solution54.8%Medium
Greedy, String +1· 1 company
1764. Form Array by Concatenating Subarrays of Another ArrayVideo
Solution54.7%Medium
Array, Greedy +2· 1 company
1813. Sentence Similarity IIIVideo
Solution48.8%Medium
Array, String +1· 4 companies
1850. Minimum Adjacent Swaps to Reach the Kth Smallest NumberVideo
Solution72.0%Medium
Greedy, String +1· 2 companies
1855. Maximum Distance Between a Pair of ValuesVideo
Solution61.3%Medium
Array, Binary Search +1· 2 companies
1861. Rotating the BoxVideo
Solution82.4%Medium
Array, Matrix +1· 10 companies
1868. Product of Two Run-Length Encoded ArraysVideoPremium
Solution59.6%Medium
Array, Two Pointers· 2 companies
1877. Minimize Maximum Pair Sum in ArrayVideo
Solution83.3%Medium
Array, Greedy +2· 6 companies
1885. Count Pairs in Two ArraysVideoPremium
Solution60.5%Medium
Array, Binary Search +2· 2 companies
1898. Maximum Number of Removable CharactersVideo
Solution47.6%Medium
Array, Binary Search +2· 3 companies
1963. Minimum Number of Swaps to Make the String BalancedVideo
Solution78.0%Medium
Greedy, Stack +2· 12 companies
2046. Sort Linked List Already Sorted Using Absolute ValuesVideoPremium
Solution67.1%Medium
Linked List, Sorting +1
2095. Delete the Middle Node of a Linked ListVideo
Solution60.4%Medium
Linked List, Two Pointers· 7 companies
2105. Watering Plants IIVideo
Solution48.8%Medium
Array, Simulation +1· 1 company
2109. Adding Spaces to a StringVideo
Solution71.8%Medium
Array, Simulation +2· 5 companies
2130. Maximum Twin Sum of a Linked ListVideo
Solution83.2%Medium
Linked List, Stack +1· 6 companies
2149. Rearrange Array Elements by SignVideo
Solution84.7%Medium
Array, Simulation +1· 6 companies
2161. Partition Array According to Given PivotVideo
Solution90.8%Medium
Array, Simulation +1· 5 companies
2300. Successful Pairs of Spells and PotionsVideo
Solution49.5%Medium
Array, Binary Search +2· 7 companies
2330. Valid Palindrome IVVideoPremium
Solution75.8%Medium
String, Two Pointers· 2 companies
2332. The Latest Time to Catch a BusVideo
Solution30.0%Medium
Array, Binary Search +2· 3 companies
Showing 51–100 of 150