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213 problems

Has video Premium only Reset

Heap (Priority Queue)Array2,237 String877 Hash Table797 Math691 Dynamic Programming673 Sorting508 Greedy485 Binary Search357 Depth-First Search338 Database308 Bit Manipulation286 Matrix279 Tree264 Breadth-First Search257 Prefix Sum252 All topics

213 results

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TitleSolutionAcceptDifficultyTopics

23. Merge k Sorted ListsVideo

Solution60.3%Hard

Divide and Conquer, Heap (Priority Queue) +2· 50 companies

215. Kth Largest Element in an ArrayVideo

Solution69.4%Medium

Array, Divide and Conquer +3· 41 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

253. Meeting Rooms IIVideoPremium

Solution52.6%Medium

Array, Greedy +4· 42 companies

264. Ugly Number IIVideo

Solution49.7%Medium

Dynamic Programming, Hash Table +2· 9 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

347. Top K Frequent ElementsVideo

Solution67.3%Medium

Array, Bucket Sort +6· 53 companies

355. Design TwitterVideo

Solution45.6%Medium

Design, Hash Table +2· 14 companies

358. Rearrange String k Distance ApartVideoPremium

Solution39.9%Hard

Counting, Greedy +4· 4 companies

373. Find K Pairs with Smallest SumsVideo

Solution42.3%Medium

Array, Heap (Priority Queue)· 10 companies

378. Kth Smallest Element in a Sorted MatrixVideo

Solution65.1%Medium

Array, Binary Search +3· 10 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

451. Sort Characters By FrequencyVideo

Solution75.8%Medium

Bucket Sort, Counting +4· 16 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

505. The Maze IIVideoPremium

Solution55.0%Medium

Array, Breadth-First Search +5· 5 companies

506. Relative RanksVideo

Solution75.1%Easy

Array, Heap (Priority Queue) +1· 4 companies

621. Task SchedulerVideo

Solution64.0%Medium

Array, Counting +4· 24 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

658. Find K Closest ElementsVideo

Solution50.1%Medium

Array, Binary Search +4· 18 companies

659. Split Array into Consecutive SubsequencesVideo

Solution52.7%Medium

Array, Greedy +2· 2 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

692. Top K Frequent WordsVideo

Solution60.6%Medium

Bucket Sort, Counting +5· 23 companies

703. Kth Largest Element in a StreamVideo

Solution61.4%Easy

Binary Search Tree, Binary Tree +4· 11 companies

743. Network Delay TimeVideo

Solution61.7%Medium

Breadth-First Search, Depth-First Search +3· 9 companies

759. Employee Free TimeVideoPremium

Solution72.9%Hard

Array, Heap (Priority Queue) +1· 12 companies

767. Reorganize StringVideo

Solution57.5%Medium

Counting, Greedy +4· 20 companies

778. Swim in Rising WaterVideo

Solution68.3%Hard

Array, Binary Search +5· 8 companies

786. K-th Smallest Prime FractionVideo

Solution69.0%Medium

Array, Binary Search +3· 1 company

787. Cheapest Flights Within K StopsVideo

Solution42.7%Medium

Breadth-First Search, Depth-First Search +4· 18 companies

855. Exam RoomVideo

Solution43.6%Medium

Design, Heap (Priority Queue) +1· 6 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

912. Sort an ArrayVideo

Solution55.9%Medium

Array, Bucket Sort +6· 12 companies

973. K Closest Points to OriginVideo

Solution69.4%Medium

Array, Divide and Conquer +5· 17 companies

1046. Last Stone WeightVideo

Solution66.4%Easy

Array, Heap (Priority Queue)· 13 companies

1054. Distant BarcodesVideo

Solution49.3%Medium

Array, Counting +4· 2 companies

1086. High FiveVideoPremium

Solution74.5%Easy

Array, Hash Table +2· 2 companies

1094. Car PoolingVideo

Solution56.5%Medium

Array, Heap (Priority Queue) +3· 12 companies

1102. Path With Maximum Minimum ValueVideoPremium

Solution54.6%Medium

Array, Binary Search +5· 3 companies

1135. Connecting Cities With Minimum CostVideoPremium

Solution63.5%Medium

Graph, Heap (Priority Queue) +2· 1 company

Showing 1–50 of 213