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Problems

78 problems

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

Hard · 78 results

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TitleSolutionAcceptDifficultyTopics
23. Merge k Sorted ListsVideo
Solution60.3%Hard
Divide and Conquer, Heap (Priority Queue) +2· 50 companies
218. The Skyline ProblemVideo
Solution45.7%Hard
Array, Binary Indexed Tree +5· 13 companies
239. Sliding Window MaximumVideo
Solution49.1%Hard
Array, Heap (Priority Queue) +3· 48 companies
272. Closest Binary Search Tree Value IIVideoPremium
Solution61.1%Hard
Binary Search Tree, Binary Tree +5· 3 companies
295. Find Median from Data StreamVideo
Solution54.9%Hard
Data Stream, Design +3· 40 companies
358. Rearrange String k Distance ApartVideoPremium
Solution39.9%Hard
Counting, Greedy +4· 4 companies
407. Trapping Rain Water IIVideo
Solution64.0%Hard
Array, Breadth-First Search +2· 14 companies
420. Strong Password CheckerVideo
Solution16.7%Hard
Greedy, Heap (Priority Queue) +1· 7 companies
480. Sliding Window MedianVideo
Solution38.7%Hard
Array, Hash Table +2· 11 companies
499. The Maze IIIVideoPremium
Solution52.3%Hard
Array, Breadth-First Search +6· 1 company
502. IPOVideo
Solution53.6%Hard
Array, Greedy +2· 9 companies
630. Course Schedule IIIVideo
Solution42.1%Hard
Array, Greedy +2· 4 companies
632. Smallest Range Covering Elements from K ListsVideo
Solution70.3%Hard
Array, Greedy +4· 10 companies
642. Design Search Autocomplete SystemVideoPremium
Solution49.9%Hard
Data Stream, Depth-First Search +5· 12 companies
675. Cut Off Trees for Golf EventVideo
Solution36.8%Hard
Array, Breadth-First Search +2· 2 companies
683. K Empty SlotsVideoPremium
Solution38.0%Hard
Array, Binary Indexed Tree +6· 1 company
759. Employee Free TimeVideoPremium
Solution72.9%Hard
Array, Heap (Priority Queue) +1· 12 companies
778. Swim in Rising WaterVideo
Solution68.3%Hard
Array, Binary Search +5· 8 companies
857. Minimum Cost to Hire K WorkersVideo
Solution63.5%Hard
Array, Greedy +2· 3 companies
862. Shortest Subarray with Sum at Least KVideo
Solution33.3%Hard
Array, Binary Search +5· 7 companies
871. Minimum Number of Refueling StopsVideo
Solution41.8%Hard
Array, Dynamic Programming +2· 7 companies
882. Reachable Nodes In Subdivided GraphVideo
Solution52.5%Hard
Graph, Heap (Priority Queue) +1· 2 companies
1168. Optimize Water Distribution in a VillageVideoPremium
Solution65.5%Hard
Graph, Heap (Priority Queue) +2· 2 companies
1172. Dinner Plate StacksVideo
Solution34.2%Hard
Design, Hash Table +2· 2 companies
1183. Maximum Number of OnesVideoPremium
Solution70.6%Hard
Greedy, Heap (Priority Queue)· 1 company
1199. Minimum Time to Build BlocksVideoPremium
Solution49.2%Hard
Array, Greedy +2· 1 company
1263. Minimum Moves to Move a Box to Their Target LocationVideo
Solution49.7%Hard
Array, Breadth-First Search +2· 1 company
1354. Construct Target Array With Multiple SumsVideo
Solution36.8%Hard
Array, Heap (Priority Queue)· 1 company
1368. Minimum Cost to Make at Least One Valid Path in a GridVideo
Solution70.9%Hard
Array, Breadth-First Search +4· 8 companies
1383. Maximum Performance of a TeamVideo
Solution48.2%Hard
Array, Greedy +2· 7 companies
1388. Pizza With 3n SlicesVideo
Solution54.4%Hard
Array, Dynamic Programming +2· 1 company
1425. Constrained Subsequence SumVideo
Solution56.5%Hard
Array, Dynamic Programming +4· 2 companies
1439. Find the Kth Smallest Sum of a Matrix With Sorted RowsVideo
Solution62.6%Hard
Array, Binary Search +2· 2 companies
1499. Max Value of EquationVideo
Solution45.0%Hard
Array, Heap (Priority Queue) +3· 1 company
1606. Find Servers That Handled Most Number of RequestsVideo
Solution45.9%Hard
Array, Greedy +2· 6 companies
1675. Minimize Deviation in ArrayVideo
Solution54.0%Hard
Array, Greedy +2· 1 company
1687. Delivering Boxes from Storage to PortsVideo
Solution40.1%Hard
Array, Dynamic Programming +5· 1 company
1776. Car Fleet IIVideo
Solution58.4%Hard
Array, Heap (Priority Queue) +3· 3 companies
1825. Finding MK AverageVideo
Solution38.7%Hard
Data Stream, Design +3· 1 company
1851. Minimum Interval to Include Each QueryVideo
Solution55.4%Hard
Array, Binary Search +3· 3 companies
1912. Design Movie Rental SystemVideo
Solution62.5%Hard
Array, Design +3· 2 companies
2102. Sequentially Ordinal Rank TrackerVideo
Solution61.5%Hard
Data Stream, Design +2· 1 company
2163. Minimum Difference in Sums After Removal of ElementsVideo
Solution69.8%Hard
Array, Dynamic Programming +1· 7 companies
2290. Minimum Obstacle Removal to Reach CornerVideo
Solution71.1%Hard
Array, Breadth-First Search +4· 2 companies
2344. Minimum Deletions to Make Array DivisibleVideo
Solution61.8%Hard
Array, Heap (Priority Queue) +3· 3 companies
2386. Find the K-Sum of an ArrayVideo
Solution42.0%Hard
Array, Heap (Priority Queue) +1· 3 companies
2398. Maximum Number of Robots Within BudgetVideo
Solution38.8%Hard
Array, Binary Search +5· 2 companies
2402. Meeting Rooms IIIVideo
Solution51.6%Hard
Array, Hash Table +3· 12 companies
2454. Next Greater Element IVVideo
Solution43.0%Hard
Array, Binary Search +4· 1 company
2503. Maximum Number of Points From Grid QueriesVideo
Solution59.3%Hard
Array, Breadth-First Search +5· 6 companies
Showing 1–50 of 78