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Problems

106 problems

Has videoPremium onlyReset
CountingArray1,196Hash Table465String434Greedy327Math327Dynamic Programming324Sorting300Depth-First Search208Binary Search187Breadth-First Search165Matrix163Tree157Prefix Sum153Two Pointers148Database135All topics

Medium · With video · 106 results

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TitleSolutionAcceptDifficultyTopics
229. Majority Element IIVideo
Solution56.5%Medium
Array, Counting +2· 9 companies
299. Bulls and CowsVideo
Solution52.9%Medium
Counting, Hash Table +1· 7 companies
347. Top K Frequent ElementsVideo
Solution67.3%Medium
Array, Bucket Sort +6· 53 companies
451. Sort Characters By FrequencyVideo
Solution75.8%Medium
Bucket Sort, Counting +4· 16 companies
621. Task SchedulerVideo
Solution64.0%Medium
Array, Counting +4· 24 companies
692. Top K Frequent WordsVideo
Solution60.6%Medium
Bucket Sort, Counting +5· 23 companies
767. Reorganize StringVideo
Solution57.5%Medium
Counting, Greedy +4· 20 companies
811. Subdomain Visit CountVideo
Solution77.2%Medium
Array, Counting +2· 4 companies
869. Reordered Power of 2Video
Solution66.0%Medium
Counting, Enumeration +3· 5 companies
900. RLE IteratorVideo
Solution59.6%Medium
Array, Counting +2· 2 companies
923. 3Sum With MultiplicityVideo
Solution46.2%Medium
Array, Counting +3· 4 companies
945. Minimum Increment to Make Array UniqueVideo
Solution60.7%Medium
Array, Counting +2· 7 companies
1010. Pairs of Songs With Total Durations Divisible by 60Video
Solution53.6%Medium
Array, Counting +1· 7 companies
1054. Distant BarcodesVideo
Solution49.3%Medium
Array, Counting +4· 2 companies
1079. Letter Tile PossibilitiesVideo
Solution83.5%Medium
Backtracking, Counting +2· 5 companies
1090. Largest Values From LabelsVideo
Solution64.7%Medium
Array, Counting +3· 1 company
1198. Find Smallest Common Element in All RowsVideoPremium
Solution76.5%Medium
Array, Binary Search +3· 2 companies
1267. Count Servers that CommunicateVideo
Solution73.5%Medium
Array, Breadth-First Search +4· 6 companies
1347. Minimum Number of Steps to Make Two Strings AnagramVideo
Solution82.6%Medium
Counting, Hash Table +1· 10 companies
1366. Rank Teams by VotesVideo
Solution60.1%Medium
Array, Counting +3· 7 companies
1400. Construct K Palindrome StringsVideo
Solution68.6%Medium
Counting, Greedy +2· 6 companies
1419. Minimum Number of Frogs CroakingVideo
Solution51.2%Medium
Counting, String· 2 companies
1481. Least Number of Unique Integers after K RemovalsVideo
Solution63.8%Medium
Array, Counting +3· 7 companies
1497. Check If Array Pairs Are Divisible by kVideo
Solution46.2%Medium
Array, Counting +1· 8 companies
1519. Number of Nodes in the Sub-Tree With the Same LabelVideo
Solution55.5%Medium
Breadth-First Search, Counting +3· 2 companies
1612. Check If Two Expression Trees are EquivalentVideoPremium
Solution71.8%Medium
Binary Tree, Counting +3· 1 company
1657. Determine if Two Strings Are CloseVideo
Solution54.2%Medium
Counting, Hash Table +2· 7 companies
1726. Tuple with Same ProductVideo
Solution70.1%Medium
Array, Counting +1· 5 companies
1737. Change Minimum Characters to Satisfy One of Three ConditionsVideo
Solution38.4%Medium
Counting, Hash Table +2· 1 company
1775. Equal Sum Arrays With Minimum Number of OperationsVideo
Solution54.6%Medium
Array, Counting +2· 1 company
1781. Sum of Beauty of All SubstringsVideo
Solution74.9%Medium
Counting, Hash Table +1· 6 companies
1814. Count Nice Pairs in an ArrayVideo
Solution48.6%Medium
Array, Counting +2· 6 companies
1940. Longest Common Subsequence Between Sorted ArraysVideoPremium
Solution81.3%Medium
Array, Counting +1· 1 company
2001. Number of Pairs of Interchangeable RectanglesVideo
Solution53.1%Medium
Array, Counting +3· 2 companies
2013. Detect SquaresVideo
Solution53.0%Medium
Array, Counting +2· 4 companies
2023. Number of Pairs of Strings With Concatenation Equal to TargetVideo
Solution75.6%Medium
Array, Counting +2· 2 companies
2029. Stone Game IXVideo
Solution57.6%Medium
Array, Counting +3· 1 company
2067. Number of Equal Count SubstringsVideoPremium
Solution45.1%Medium
Counting, Prefix Sum +1· 1 company
2083. Substrings That Begin and End With the Same LetterVideoPremium
Solution74.1%Medium
Counting, Hash Table +3
2131. Longest Palindrome by Concatenating Two Letter WordsVideo
Solution53.5%Medium
Array, Counting +3· 6 companies
2150. Find All Lonely Numbers in the ArrayVideo
Solution64.0%Medium
Array, Counting +1· 2 companies
2168. Unique Substrings With Equal Digit FrequencyVideoPremium
Solution64.6%Medium
Counting, Hash Function +3· 1 company
2170. Minimum Operations to Make the Array AlternatingVideo
Solution35.7%Medium
Array, Counting +2· 2 companies
2182. Construct String With Repeat LimitVideo
Solution70.9%Medium
Counting, Greedy +3· 5 companies
2186. Minimum Number of Steps to Make Two Strings Anagram IIVideo
Solution73.3%Medium
Counting, Hash Table +1· 1 company
2225. Find Players With Zero or One LossesVideo
Solution72.4%Medium
Array, Counting +2· 4 companies
2244. Minimum Rounds to Complete All TasksVideo
Solution63.5%Medium
Array, Counting +2· 2 companies
2268. Minimum Number of KeypressesVideoPremium
Solution71.2%Medium
Counting, Greedy +3· 1 company
2275. Largest Combination With Bitwise AND Greater Than ZeroVideo
Solution81.0%Medium
Array, Bit Manipulation +2· 4 companies
2284. Sender With Largest Word CountVideo
Solution60.2%Medium
Array, Counting +2· 1 company
Showing 1–50 of 106