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Problems

155 problems

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

Medium · 155 results

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TitleSolutionAcceptDifficultyTopics
1895. Largest Magic SquareVideo
Solution75.3%Medium
Array, Matrix +1· 3 companies
1915. Number of Wonderful SubstringsVideo
Solution66.8%Medium
Bit Manipulation, Hash Table +2· 2 companies
1930. Unique Length-3 Palindromic SubsequencesVideo
Solution73.8%Medium
Bit Manipulation, Hash Table +2· 6 companies
1943. Describe the PaintingVideo
Solution53.3%Medium
Array, Hash Table +2· 3 companies
1983. Widest Pair of Indices With Equal Range SumVideoPremium
Solution54.0%Medium
Array, Hash Table +1· 1 company
2017. Grid GameVideo
Solution60.9%Medium
Array, Matrix +1· 4 companies
2021. Brightest Position on StreetVideoPremium
Solution60.5%Medium
Array, Ordered Set +1· 6 companies
2024. Maximize the Confusion of an ExamVideo
Solution70.4%Medium
Binary Search, Prefix Sum +2· 4 companies
2055. Plates Between CandlesVideo
Solution47.4%Medium
Array, Binary Search +2· 3 companies
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
2100. Find Good Days to Rob the BankVideo
Solution52.1%Medium
Array, Dynamic Programming +1· 2 companies
2121. Intervals Between Identical ElementsVideo
Solution48.4%Medium
Array, Hash Table +1· 2 companies
2145. Count the Hidden SequencesVideo
Solution56.7%Medium
Array, Prefix Sum· 6 companies
2171. Removing Minimum Number of Magic BeansVideo
Solution45.1%Medium
Array, Enumeration +3· 1 company
2207. Maximize Number of Subsequences in a StringVideo
Solution36.0%Medium
Greedy, Prefix Sum +1· 1 company
2219. Maximum Sum Score of ArrayVideoPremium
Solution62.6%Medium
Array, Prefix Sum· 1 company
2222. Number of Ways to Select BuildingsVideo
Solution50.8%Medium
Dynamic Programming, Prefix Sum +1· 3 companies
2237. Count Positions on Street With Required BrightnessVideoPremium
Solution62.4%Medium
Array, Prefix Sum· 1 company
2245. Maximum Trailing Zeros in a Cornered PathVideo
Solution38.2%Medium
Array, Matrix +1
2256. Minimum Average DifferenceVideo
Solution43.8%Medium
Array, Prefix Sum· 2 companies
2270. Number of Ways to Split ArrayVideo
Solution55.9%Medium
Array, Prefix Sum· 7 companies
2271. Maximum White Tiles Covered by a CarpetVideo
Solution36.3%Medium
Array, Binary Search +3· 3 companies
2381. Shifting Letters IIVideo
Solution53.6%Medium
Array, Prefix Sum +1· 5 companies
2391. Minimum Amount of Time to Collect GarbageVideo
Solution85.2%Medium
Array, Prefix Sum +1· 2 companies
2406. Divide Intervals Into Minimum Number of GroupsVideo
Solution63.7%Medium
Array, Greedy +4· 7 companies
2420. Find All Good IndicesVideo
Solution41.4%Medium
Array, Dynamic Programming +1· 1 company
2428. Maximum Sum of an HourglassVideo
Solution77.1%Medium
Array, Matrix +1· 1 company
2438. Range Product Queries of PowersVideo
Solution61.4%Medium
Array, Bit Manipulation +1· 5 companies
2439. Minimize Maximum of ArrayVideo
Solution46.4%Medium
Array, Binary Search +3· 5 companies
2483. Minimum Penalty for a ShopVideo
Solution71.2%Medium
Prefix Sum, String· 6 companies
2489. Number of Substrings With Fixed RatioVideoPremium
Solution56.0%Medium
Hash Table, Math +2· 1 company
2536. Increment Submatrices by OneVideo
Solution73.8%Medium
Array, Matrix +1· 3 companies
2559. Count Vowel Strings in RangesVideo
Solution67.8%Medium
Array, Prefix Sum +1· 9 companies
2587. Rearrange Array to Maximize Prefix ScoreVideo
Solution43.2%Medium
Array, Greedy +2· 3 companies
2588. Count the Number of Beautiful SubarraysVideo
Solution54.7%Medium
Array, Bit Manipulation +2
2602. Minimum Operations to Make All Array Elements EqualVideo
Solution38.7%Medium
Array, Binary Search +2· 3 companies
2615. Sum of DistancesVideo
Solution50.2%Medium
Array, Hash Table +1· 5 companies
2640. Find the Score of All Prefixes of an ArrayVideo
Solution72.9%Medium
Array, Prefix Sum· 1 company
2680. Maximum ORVideo
Solution43.5%Medium
Array, Bit Manipulation +2· 5 companies
2731. Movement of RobotsVideo
Solution28.1%Medium
Array, Brainteaser +2· 3 companies
2772. Apply Operations to Make All Array Elements Equal to ZeroVideo
Solution33.5%Medium
Array, Prefix Sum· 2 companies
2838. Maximum Coins Heroes Can CollectVideoPremium
Solution68.7%Medium
Array, Binary Search +3· 1 company
2845. Count of Interesting SubarraysVideo
Solution58.0%Medium
Array, Hash Table +1· 4 companies
2875. Minimum Size Subarray in Infinite ArrayVideo
Solution32.1%Medium
Array, Hash Table +2· 1 company
2906. Construct Product MatrixVideo
Solution51.7%Medium
Array, Matrix +1· 4 companies
2947. Count Beautiful Substrings IVideo
Solution60.9%Medium
Enumeration, Hash Table +4· 1 company
2950. Number of Divisible SubstringsVideoPremium
Solution74.6%Medium
Counting, Hash Table +2· 4 companies
2955. Number of Same-End SubstringsVideoPremium
Solution60.6%Medium
Array, Counting +3· 2 companies
2971. Find Polygon With the Largest PerimeterVideo
Solution65.7%Medium
Array, Greedy +2· 1 company
Showing 51–100 of 155