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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
3462. Maximum Sum With at Most K ElementsVideo
Solution60.6%Medium
Array, Greedy +3· 2 companies
3466. Maximum Coin Collection VideoPremium
Solution52.8%Medium
Array, Dynamic Programming· 1 company
3468. Find the Number of Copy ArraysVideo
–46.9%Medium
Array, Math· 2 companies
3469. Find Minimum Cost to Remove Array ElementsVideo
–22.2%Medium
Array, Dynamic Programming· 4 companies
3472. Longest Palindromic Subsequence After at Most K OperationsVideo
Solution38.0%Medium
Dynamic Programming, String· 1 company
3473. Sum of K Subarrays With Length at Least MVideo
–26.0%Medium
Array, Dynamic Programming +1
3475. DNA Pattern Recognition Video
Solution85.5%Medium
Database· 1 company
3476. Maximize Profit from Task AssignmentVideoPremium
Solution65.9%Medium
Array, Greedy +2
3478. Choose K Elements With Maximum SumVideo
Solution34.6%Medium
Array, Heap (Priority Queue) +1· 1 company
3479. Fruits Into Baskets IIIVideo
Solution39.2%Medium
Array, Binary Search +2· 4 companies
3481. Apply SubstitutionsVideoPremium
Solution78.0%Medium
Array, Breadth-First Search +5· 1 company
3484. Design SpreadsheetVideo
Solution73.5%Medium
Array, Design +3· 7 companies
3488. Closest Equal Element QueriesVideo
Solution51.4%Medium
Array, Binary Search +1· 4 companies
3489. Zero Array Transformation IVVideo
–31.6%Medium
Array, Dynamic Programming· 1 company
3493. Properties GraphVideo
Solution48.6%Medium
Array, Breadth-First Search +4· 1 company
3494. Find the Minimum Amount of Time to Brew PotionsVideo
Solution62.7%Medium
Array, Prefix Sum +1· 6 companies
3496. Maximize Score After Pair DeletionsPremium
Solution52.5%Medium
Array, Greedy· 1 company
3497. Analyze Subscription Conversion Video
Solution71.4%Medium
Database· 1 company
3499. Maximize Active Section with Trade IVideo
Solution60.9%Medium
Enumeration, String· 1 company
3503. Longest Palindrome After Substring Concatenation IVideo
Solution43.8%Medium
Dynamic Programming, Enumeration +2· 2 companies
3508. Implement RouterVideo
Solution39.1%Medium
Array, Binary Search +4· 4 companies
3511. Make a Positive ArrayPremium
Solution36.9%Medium
Array, Greedy +1· 1 company
3513. Number of Unique XOR Triplets IVideo
Solution57.2%Medium
Array, Bit Manipulation +1· 1 company
3514. Number of Unique XOR Triplets IIVideo
Solution52.9%Medium
Array, Bit Manipulation +2· 1 company
3517. Smallest Palindromic Rearrangement IVideo
Solution74.5%Medium
Counting Sort, Sorting +1· 3 companies
3520. Minimum Threshold for Inversion Pairs CountPremium
–56.3%Medium
Array, Binary Indexed Tree +2
3521. Find Product Recommendation PairsVideo
–64.0%Medium
Database· 2 companies
3522. Calculate Score After Performing InstructionsVideo
Solution57.0%Medium
Array, Hash Table +2· 1 company
3523. Make Array Non-decreasingVideo
Solution57.5%Medium
Array, Greedy +2· 1 company
3524. Find X Value of Array IVideo
Solution66.5%Medium
Array, Dynamic Programming +1· 1 company
3527. Find the Most Common ResponseVideo
Solution74.0%Medium
Array, Counting +2· 1 company
3528. Unit Conversion IVideo
Solution53.3%Medium
Breadth-First Search, Depth-First Search +1· 1 company
3529. Count Cells in Overlapping Horizontal and Vertical SubstringsVideo
–27.7%Medium
Array, Hash Function +4· 1 company
3531. Count Covered BuildingsVideo
Solution58.8%Medium
Array, Hash Table +1· 2 companies
3532. Path Existence Queries in a Graph IVideo
Solution70.6%Medium
Array, Binary Search +3· 5 companies
3535. Unit Conversion IIVideoPremium
Solution61.5%Medium
Array, Breadth-First Search +3· 1 company
3537. Fill a Special GridVideo
Solution70.8%Medium
Array, Divide and Conquer +1· 1 company
3540. Minimum Time to Visit All HousesVideoPremium
–69.9%Medium
Array, Prefix Sum· 1 company
3542. Minimum Operations to Convert All Elements to ZeroVideo
Solution53.0%Medium
Array, Greedy +3· 4 companies
3543. Maximum Weighted K-Edge PathVideo
–20.5%Medium
Dynamic Programming, Graph +1
3546. Equal Sum Grid Partition IVideo
Solution52.9%Medium
Array, Enumeration +2· 4 companies
3551. Minimum Swaps to Sort by Digit SumVideo
Solution67.2%Medium
Array, Hash Table +1· 1 company
3552. Grid Teleportation TraversalVideo
Solution24.0%Medium
Array, Breadth-First Search +2· 3 companies
3555. Smallest Subarray to Sort in Every Sliding WindowVideoPremium
Solution58.8%Medium
Array, Greedy +4
3556. Sum of Largest Prime SubstringsVideo
Solution37.9%Medium
Hash Table, Math +3· 1 company
3557. Find Maximum Number of Non Intersecting SubstringsVideo
–31.1%Medium
Dynamic Programming, Greedy +2· 1 company
3558. Number of Ways to Assign Edge Weights IVideo
Solution63.7%Medium
Depth-First Search, Math +1· 2 companies
3561. Resulting String After Adjacent RemovalsVideo
Solution56.5%Medium
Simulation, Stack +1· 1 company
3564. Seasonal Sales AnalysisVideo
Solution64.9%Medium
Database
3565. Sequential Grid Path CoverVideoPremium
Solution59.5%Medium
Array, Matrix +1
Showing 1,801–1,850 of 2,133