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Problems

96 problems

Has videoPremium onlyReset
Array578Dynamic Programming332String191Math187Binary Search136Hash Table134Sorting106Greedy104Bit Manipulation103Graph96Depth-First Search91Heap (Priority Queue)78Prefix Sum77Matrix75Breadth-First Search71All topics

Hard · 96 results

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TitleSolutionAcceptDifficultyTopics
2328. Number of Increasing Paths in a GridVideo
Solution57.4%Hard
Array, Breadth-First Search +6· 2 companies
2360. Longest Cycle in a GraphVideo
Solution51.1%Hard
Depth-First Search, Graph +1· 7 companies
2371. Minimize Maximum Value in a GridVideoPremium
Solution70.1%Hard
Array, Graph +4· 1 company
2392. Build a Matrix With ConditionsVideo
Solution79.5%Hard
Array, Graph +2· 1 company
2421. Number of Good PathsVideo
Solution56.7%Hard
Array, Graph +4· 3 companies
2479. Maximum XOR of Two Non-Overlapping SubtreesPremium
Solution51.3%Hard
Depth-First Search, Graph +2· 2 companies
2493. Divide Nodes Into the Maximum Number of GroupsVideo
Solution67.0%Hard
Breadth-First Search, Graph +1· 6 companies
2508. Add Edges to Make Degrees of All Nodes EvenVideo
Solution37.3%Hard
Graph, Hash Table· 1 company
2577. Minimum Time to Visit a Cell In a GridVideo
Solution56.3%Hard
Array, Breadth-First Search +4· 4 companies
2603. Collect Coins in a TreeVideo
Solution40.2%Hard
Array, Graph +2· 13 companies
2608. Shortest Cycle in a GraphVideo
Solution40.5%Hard
Breadth-First Search, Graph· 4 companies
2642. Design Graph With Shortest Path CalculatorVideo
Solution65.6%Hard
Design, Graph +2· 2 companies
2646. Minimize the Total Price of the TripsVideo
Solution48.5%Hard
Array, Depth-First Search +3
2699. Modify Graph Edge WeightsVideo
Solution55.6%Hard
Graph, Heap (Priority Queue) +1· 1 company
2714. Find Shortest Path with K HopsVideoPremium
Solution68.7%Hard
Graph, Heap (Priority Queue) +1· 1 company
2846. Minimum Edge Weight Equilibrium Queries in a TreeVideo
Solution46.7%Hard
Array, Graph +2· 1 company
2858. Minimum Edge Reversals So Every Node Is ReachableVideo
Solution60.2%Hard
Breadth-First Search, Depth-First Search +2· 11 companies
2876. Count Visited Nodes in a Directed GraphVideo
Solution31.6%Hard
Dynamic Programming, Graph +1· 1 company
2959. Number of Possible Sets of Closing BranchesVideo
Solution51.2%Hard
Bit Manipulation, Enumeration +3· 3 companies
2977. Minimum Cost to Convert String IIVideo
Solution59.1%Hard
Array, Dynamic Programming +4· 4 companies
3017. Count the Number of Houses at a Certain Distance IIVideo
Solution23.7%Hard
Graph, Prefix Sum· 1 company
3108. Minimum Cost Walk in Weighted GraphVideo
Solution68.3%Hard
Array, Bit Manipulation +2· 6 companies
3123. Find Edges in Shortest PathsVideo
Solution47.0%Hard
Breadth-First Search, Depth-First Search +3· 2 companies
3203. Find Minimum Diameter After Merging Two TreesVideo
Solution57.1%Hard
Breadth-First Search, Depth-First Search +2· 4 companies
3241. Time Taken to Mark All NodesVideo
Solution29.5%Hard
Depth-First Search, Dynamic Programming +2
3244. Shortest Distance After Road Addition Queries IIVideo
Solution26.5%Hard
Array, Graph +2
3311. Construct 2D Grid Matching Graph LayoutVideo
Solution29.3%Hard
Array, Graph +2
3383. Minimum Runes to Add to Cast SpellPremium
Solution45.2%Hard
Array, Breadth-First Search +4· 1 company
3385. Minimum Time to Break Locks IIPremium
Solution45.7%Hard
Array, Depth-First Search +1· 1 company
3435. Frequencies of Shortest SupersequencesVideo
–22.2%Hard
Array, Bit Manipulation +4· 1 company
3530. Maximum Profit from Valid Topological Order in DAGVideo
–29.7%Hard
Array, Bit Manipulation +4
3534. Path Existence Queries in a Graph IIVideo
Solution64.2%Hard
Array, Binary Search +6· 4 companies
3547. Maximum Sum of Edge Values in a GraphVideo
–35.4%Hard
Graph, Greedy +1· 1 company
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
3615. Longest Palindromic Path in GraphVideo
–22.6%Hard
Bit Manipulation, Bitmask +3· 1 company
3620. Network Recovery PathwaysVideo
Solution50.8%Hard
Array, Binary Search +5· 2 companies
3710. Maximum Partition FactorVideo
–31.8%Hard
Array, Binary Search +4· 2 companies
3812. Minimum Edge Toggles on a TreeVideo
Solution65.6%Hard
Depth-First Search, Graph +3
3887. Incremental Even-Weighted Cycle QueriesVideo
–49.1%Hard
Graph, Union Find
3910. Count Connected Subgraphs with Even Node SumVideo
Solution59.0%Hard
Array, Bit Manipulation +5
3924. Minimum Threshold Path With Limited Heavy EdgesVideo
–39.0%Hard
Binary Search, Breadth-First Search +1
3928. Minimum Cost to Buy Apples IIVideo
–31.8%Hard
Array, Graph +2· 1 company
3977. Minimum Time to Reach Target With Limited PowerVideo
Solution40.4%Hard
Array, Dynamic Programming +3
4003. Minimum Cost Path with Alternating Directions IIIVideo
Solution61.4%Hard
Array, Graph +3
4046. Minimum Cost Path With At Most K TurnsVideo
–53.9%Hard
Array, Graph +3
Showing 51–96 of 96