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Problems

942 problems

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Array566Dynamic Programming328String188Math182Binary Search133Hash Table132Sorting104Greedy102Bit Manipulation101Graph92Depth-First Search88Heap (Priority Queue)77Prefix Sum75Matrix74Breadth-First Search70All topics

Hard · With video · 942 results

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TitleSolutionAcceptDifficultyTopics
3515. Shortest Path in a Weighted TreeVideo
–41.5%Hard
Array, Binary Indexed Tree +3· 1 company
3518. Smallest Palindromic Rearrangement IIVideo
Solution44.3%Hard
Combinatorics, Counting +3
3519. Count Numbers with Non-Decreasing Digits Video
–37.3%Hard
Dynamic Programming, Math +1
3525. Find X Value of Array IIVideo
Solution70.4%Hard
Array, Math +1· 1 company
3530. Maximum Profit from Valid Topological Order in DAGVideo
–29.7%Hard
Array, Bit Manipulation +4
3533. Concatenated DivisibilityVideo
–30.6%Hard
Array, Bit Manipulation +2· 1 company
3534. Path Existence Queries in a Graph IIVideo
Solution64.2%Hard
Array, Binary Search +6· 4 companies
3538. Merge Operations for Minimum Travel TimeVideo
–30.5%Hard
Array, Dynamic Programming +1· 1 company
3539. Find Sum of Array Product of Magical SequencesVideo
Solution61.9%Hard
Array, Bit Manipulation +4· 2 companies
3544. Subtree Inversion SumVideo
–41.6%Hard
Array, Depth-First Search +2
3547. Maximum Sum of Edge Values in a GraphVideo
–35.4%Hard
Graph, Greedy +1· 1 company
3548. Equal Sum Grid Partition IIVideo
Solution39.5%Hard
Array, Enumeration +3· 2 companies
3549. Multiply Two PolynomialsVideoPremium
Solution59.2%Hard
Array, Math
3553. Minimum Weighted Subgraph With the Required Paths IIVideo
–48.2%Hard
Array, Bit Manipulation +3
3554. Find Category Recommendation PairsVideo
Solution66.5%Hard
Database
3559. Number of Ways to Assign Edge Weights IIVideo
Solution71.8%Hard
Array, Bit Manipulation +4· 3 companies
3562. Maximum Profit from Trading Stocks with DiscountsVideo
Solution56.1%Hard
Array, Depth-First Search +2· 2 companies
3563. Lexicographically Smallest String After Adjacent RemovalsVideo
–17.9%Hard
Dynamic Programming, String
3569. Maximize Count of Distinct Primes After SplitVideo
–19.0%Hard
Array, Math +2· 1 company
3574. Maximize Subarray GCD ScoreVideo
Solution25.5%Hard
Array, Enumeration +2· 1 company
3575. Maximum Good Subtree ScoreVideo
–44.0%Hard
Array, Bit Manipulation +4· 1 company
3579. Minimum Steps to Convert String with OperationsVideo
Solution42.5%Hard
Dynamic Programming, String
3585. Find Weighted Median Node in TreeVideo
Solution26.7%Hard
Array, Binary Search +4· 1 company
3590. Kth Smallest Path XOR SumVideo
Solution30.1%Hard
Array, Depth-First Search +2
3594. Minimum Time to Transport All IndividualsVideo
–28.3%Hard
Array, Bit Manipulation +4
3600. Maximize Spanning Tree Stability with UpgradesVideo
Solution65.9%Hard
Binary Search, Graph +3· 3 companies
3605. Minimum Stability Factor of ArrayVideo
–20.4%Hard
Array, Binary Search +4· 1 company
3609. Minimum Moves to Reach Target in GridVideo
–15.5%Hard
Math· 1 company
3614. Process String with Special Operations IIVideo
Solution39.9%Hard
Simulation, String· 3 companies
3615. Longest Palindromic Path in GraphVideo
–22.6%Hard
Bit Manipulation, Bitmask +3· 1 company
3617. Find Students with Study Spiral PatternVideo
Solution21.9%Hard
–
3620. Network Recovery PathwaysVideo
Solution50.8%Hard
Array, Binary Search +5· 2 companies
3621. Number of Integers With Popcount-Depth Equal to K IVideo
–23.0%Hard
Bit Manipulation, Combinatorics +2
3624. Number of Integers With Popcount-Depth Equal to K IIVideo
–58.5%Hard
Array, Binary Indexed Tree +2
3625. Count Number of Trapezoids IIVideo
Solution40.0%Hard
Array, Geometry +2· 2 companies
3630. Partition Array for Maximum XOR and ANDVideo
–17.6%Hard
Array, Bit Manipulation +3· 1 company
3636. Threshold Majority QueriesVideo
–22.5%Hard
Array, Binary Search +4· 4 companies
3640. Trionic Array IIVideo
Solution47.3%Hard
Array, Dynamic Programming· 6 companies
3646. Next Special Palindrome NumberVideo
–28.0%Hard
Backtracking, Bit Manipulation· 1 company
3651. Minimum Cost Path with TeleportationsVideo
Solution45.1%Hard
Array, Dynamic Programming +1· 4 companies
3655. XOR After Range Multiplication Queries IIVideo
Solution47.8%Hard
Array, Divide and Conquer· 2 companies
3661. Maximum Walls Destroyed by RobotsVideo
Solution48.0%Hard
Array, Binary Search +2· 3 companies
3666. Minimum Operations to Equalize Binary StringVideo
Solution45.2%Hard
Breadth-First Search, Math +3· 4 companies
3671. Sum of Beautiful SubsequencesVideo
–31.5%Hard
Array, Binary Indexed Tree +2· 2 companies
3673. Find Zombie SessionsVideo
Solution53.3%Hard
–
3677. Count Binary Palindromic NumbersVideo
–33.2%Hard
Bit Manipulation, Math
3681. Maximum XOR of SubsequencesVideo
–49.5%Hard
Array, Bit Manipulation +2
3686. Number of Stable SubsequencesVideo
–58.9%Hard
Array, Dynamic Programming· 1 company
3691. Maximum Total Subarray Value IIVideo
Solution41.6%Hard
Array, Greedy +2· 3 companies
3695. Maximize Alternating Sum Using SwapsVideo
–62.5%Hard
Array, Greedy +2· 1 company
Showing 801–850 of 942