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Array274 Database207 String109 Hash Table105 Depth-First Search75 Math70 Dynamic Programming69 Sorting61 Tree60 Breadth-First Search51 Binary Tree47 Greedy47 Binary Search46 Matrix38 Two Pointers37 All topics

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TitleSolutionAcceptDifficultyTopics

286. Walls and GatesVideoPremium

Solution63.9%Medium

Array, Breadth-First Search +1· 11 companies

296. Best Meeting PointVideoPremium

Solution61.1%Hard

Array, Math +2· 9 companies

302. Smallest Rectangle Enclosing Black PixelsVideoPremium

Solution60.9%Hard

Array, Binary Search +3· 1 company

308. Range Sum Query 2D - MutableVideoPremium

Solution46.0%Medium

Array, Binary Indexed Tree +3· 3 companies

311. Sparse Matrix MultiplicationVideoPremium

Solution69.3%Medium

Array, Hash Table +1· 9 companies

317. Shortest Distance from All BuildingsVideoPremium

Solution44.9%Hard

Array, Breadth-First Search +1· 15 companies

348. Design Tic-Tac-ToeVideoPremium

Solution58.8%Medium

Array, Design +3· 13 companies

361. Bomb EnemyVideoPremium

Solution52.8%Medium

Array, Dynamic Programming +1· 2 companies

422. Valid Word SquareVideoPremium

Solution42.9%Easy

Array, Matrix· 1 company

490. The MazeVideoPremium

Solution60.4%Medium

Array, Breadth-First Search +2· 13 companies

499. The Maze IIIVideoPremium

Solution52.3%Hard

Array, Breadth-First Search +6· 1 company

505. The Maze IIVideoPremium

Solution55.0%Medium

Array, Breadth-First Search +5· 5 companies

531. Lonely Pixel IVideoPremium

Solution62.3%Medium

Array, Hash Table +1· 1 company

533. Lonely Pixel IIVideoPremium

Solution48.7%Medium

Array, Hash Table +1· 1 company

562. Longest Line of Consecutive One in MatrixVideoPremium

Solution50.5%Medium

Array, Dynamic Programming +1· 1 company

568. Maximum Vacation DaysVideoPremium

Solution46.7%Hard

Array, Dynamic Programming +1· 3 companies

631. Design Excel Sum FormulaVideoPremium

–39.3%Hard

Array, Design +3· 9 companies

723. Candy CrushVideoPremium

Solution77.6%Medium

Array, Matrix +2· 11 companies

750. Number Of Corner RectanglesVideoPremium

Solution67.8%Medium

Array, Dynamic Programming +2· 1 company

1102. Path With Maximum Minimum ValueVideoPremium

Solution54.6%Medium

Array, Binary Search +5· 3 companies

1198. Find Smallest Common Element in All RowsVideoPremium

Solution76.5%Medium

Array, Binary Search +3· 2 companies

1428. Leftmost Column with at Least a OneVideoPremium

Solution55.3%Medium

Array, Binary Search +2· 3 companies

1730. Shortest Path to Get FoodVideoPremium

Solution57.7%Medium

Array, Breadth-First Search +1· 2 companies

1820. Maximum Number of Accepted InvitationsVideoPremium

Solution52.4%Medium

Array, Depth-First Search +2· 2 companies

2061. Number of Spaces Cleaning Robot CleanedVideoPremium

Solution64.3%Medium

Array, Matrix +1· 2 companies

2123. Minimum Operations to Remove Adjacent Ones in MatrixVideoPremium

Solution42.5%Hard

Array, Graph +1· 1 company

2128. Remove All Ones With Row and Column FlipsVideoPremium

Solution76.2%Medium

Array, Bit Manipulation +2· 1 company

2174. Remove All Ones With Row and Column Flips IIVideoPremium

Solution67.2%Medium

Array, Bit Manipulation +2· 1 company

2282. Number of People That Can Be Seen in a GridVideoPremium

Solution46.8%Medium

Array, Matrix +2· 1 company

2371. Minimize Maximum Value in a GridVideoPremium

Solution70.1%Hard

Array, Graph +4· 1 company

2387. Median of a Row Wise Sorted MatrixVideoPremium

Solution70.9%Medium

Array, Binary Search +1· 1 company

2510. Check if There is a Path With Equal Number of 0's And 1'sVideoPremium

Solution51.9%Medium

Array, Dynamic Programming +1· 1 company

2664. The Knight’s TourVideoPremium

Solution72.7%Medium

Array, Backtracking +1· 1 company

2814. Minimum Time Takes to Reach Destination Without DrowningVideoPremium

Solution54.7%Hard

Array, Breadth-First Search +1

2852. Sum of Remoteness of All CellsVideoPremium

Solution70.8%Medium

Array, Breadth-First Search +4· 1 company

3078. Match Alphanumerical Pattern in Matrix IVideoPremium

Solution64.6%Medium

Array, Hash Table +2· 2 companies

3391. Design a 3D Binary Matrix with Efficient Layer TrackingVideoPremium

Solution66.1%Medium

Array, Design +4· 1 company

3565. Sequential Grid Path CoverVideoPremium

Solution59.5%Medium

Array, Matrix +1

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