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Problems

2,133 problems

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

Medium · 2,133 results

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TitleSolutionAcceptDifficultyTopics
2533. Number of Good Binary StringsVideoPremium
Solution52.8%Medium
Dynamic Programming· 1 company
2536. Increment Submatrices by OneVideo
Solution73.8%Medium
Array, Matrix +1· 3 companies
2537. Count the Number of Good SubarraysVideo
Solution65.9%Medium
Array, Hash Table +1· 7 companies
2539. Count the Number of Good SubsequencesVideoPremium
Solution47.7%Medium
Combinatorics, Counting +3· 4 companies
2541. Minimum Operations to Make Array Equal IIVideo
Solution33.1%Medium
Array, Greedy +1· 1 company
2542. Maximum Subsequence ScoreVideo
Solution54.6%Medium
Array, Greedy +2· 5 companies
2545. Sort the Students by Their Kth ScoreVideo
Solution86.1%Medium
Array, Matrix +1· 3 companies
2546. Apply Bitwise Operations to Make Strings EqualVideo
Solution42.6%Medium
Bit Manipulation, String· 1 company
2548. Maximum Price to Fill a BagVideoPremium
Solution65.2%Medium
Array, Greedy +1· 1 company
2550. Count Collisions of Monkeys on a PolygonVideo
Solution30.6%Medium
Math, Recursion· 3 companies
2554. Maximum Number of Integers to Choose From a Range IVideo
Solution68.0%Medium
Array, Binary Search +3· 1 company
2555. Maximize Win From Two SegmentsVideo
Solution38.2%Medium
Array, Binary Search +1· 1 company
2556. Disconnect Path in a Binary Matrix by at Most One FlipVideo
Solution27.8%Medium
Array, Breadth-First Search +3· 1 company
2557. Maximum Number of Integers to Choose From a Range IIVideoPremium
Solution34.9%Medium
Array, Binary Search +2· 1 company
2559. Count Vowel Strings in RangesVideo
Solution67.8%Medium
Array, Prefix Sum +1· 9 companies
2560. House Robber IVVideo
Solution64.8%Medium
Array, Binary Search· 7 companies
2563. Count the Number of Fair PairsVideo
Solution52.7%Medium
Array, Binary Search +2· 9 companies
2564. Substring XOR QueriesVideo
Solution36.1%Medium
Array, Bit Manipulation +2· 1 company
2567. Minimum Score by Changing Two ElementsVideo
Solution50.4%Medium
Array, Greedy +1
2568. Minimum Impossible ORVideo
Solution59.5%Medium
Array, Bit Manipulation +1· 1 company
2571. Minimum Operations to Reduce an Integer to 0Video
Solution63.5%Medium
Bit Manipulation, Dynamic Programming +1· 8 companies
2572. Count the Number of Square-Free SubsetsVideo
Solution27.1%Medium
Array, Bit Manipulation +3· 2 companies
2575. Find the Divisibility Array of a StringVideo
Solution37.1%Medium
Array, Math +1· 2 companies
2576. Find the Maximum Number of Marked IndicesVideo
Solution41.7%Medium
Array, Binary Search +3
2579. Count Total Number of Colored CellsVideo
Solution66.1%Medium
Math· 5 companies
2580. Count Ways to Group Overlapping RangesVideo
Solution39.7%Medium
Array, Sorting· 2 companies
2583. Kth Largest Sum in a Binary TreeVideo
Solution59.4%Medium
Binary Tree, Breadth-First Search +2· 5 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
2590. Design a Todo ListVideoPremium
Solution59.8%Medium
Array, Design +3· 1 company
2592. Maximize Greatness of an ArrayVideo
Solution62.0%Medium
Array, Greedy +2· 7 companies
2593. Find Score of an Array After Marking All ElementsVideo
Solution64.5%Medium
Array, Hash Table +3· 5 companies
2594. Minimum Time to Repair CarsVideo
Solution59.6%Medium
Array, Binary Search· 6 companies
2596. Check Knight Tour ConfigurationVideo
Solution62.0%Medium
Array, Breadth-First Search +3· 3 companies
2597. The Number of Beautiful SubsetsVideo
Solution50.9%Medium
Array, Backtracking +5· 4 companies
2598. Smallest Missing Non-negative Integer After OperationsVideo
Solution56.0%Medium
Array, Greedy +2· 6 companies
2599. Make the Prefix Sum Non-negativeVideoPremium
Solution51.9%Medium
Array, Greedy +1· 1 company
2601. Prime Subtraction OperationVideo
Solution55.9%Medium
Array, Binary Search +3· 4 companies
2602. Minimum Operations to Make All Array Elements EqualVideo
Solution38.7%Medium
Array, Binary Search +2· 3 companies
2606. Find the Substring With Maximum CostVideo
Solution57.7%Medium
Array, Dynamic Programming +2· 2 companies
2607. Make K-Subarray Sums EqualVideo
Solution38.9%Medium
Array, Math +2· 2 companies
2610. Convert an Array Into a 2D Array With ConditionsVideo
Solution86.1%Medium
Array, Hash Table· 2 companies
2611. Mice and CheeseVideo
Solution49.2%Medium
Array, Greedy +2· 1 company
2615. Sum of DistancesVideo
Solution50.2%Medium
Array, Hash Table +1· 5 companies
2616. Minimize the Maximum Difference of PairsVideo
Solution50.9%Medium
Array, Binary Search +1· 6 companies
2618. Check if Object Instance of ClassVideo
Solution27.7%Medium
–· 2 companies
2622. Cache With Time LimitVideo
Solution75.1%Medium
–· 7 companies
2623. MemoizeVideo
Solution63.0%Medium
–· 4 companies
2624. Snail TraversalVideo
Solution66.0%Medium
–
2625. Flatten Deeply Nested ArrayVideo
Solution63.7%Medium
–· 6 companies
Showing 1,351–1,400 of 2,133