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Problems

41 problems

Has videoPremium onlyReset
Array447String248Hash Table189Math173Database113Sorting100Simulation93Two Pointers70Counting69Bit Manipulation54Greedy51Matrix41Tree40Depth-First Search39Binary Tree37All topics

Easy · With video · 41 results

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TitleSolutionAcceptDifficultyTopics
422. Valid Word SquareVideoPremium
Solution42.9%Easy
Array, Matrix· 1 company
463. Island PerimeterVideo
Solution74.3%Easy
Array, Breadth-First Search +2· 9 companies
566. Reshape the MatrixVideo
Solution65.4%Easy
Array, Matrix +1· 5 companies
661. Image SmootherVideo
Solution69.8%Easy
Array, Matrix· 6 companies
733. Flood FillVideo
Solution68.6%Easy
Array, Breadth-First Search +2· 12 companies
766. Toeplitz MatrixVideo
Solution69.8%Easy
Array, Matrix· 4 companies
832. Flipping an ImageVideo
Solution83.6%Easy
Array, Bit Manipulation +3· 6 companies
867. Transpose MatrixVideo
Solution77.4%Easy
Array, Matrix +1· 7 companies
883. Projection Area of 3D ShapesVideo
Solution76.9%Easy
Array, Geometry +2· 1 company
892. Surface Area of 3D ShapesVideo
Solution71.2%Easy
Array, Geometry +2· 1 company
999. Available Captures for RookVideo
Solution72.2%Easy
Array, Matrix +1· 2 companies
1030. Matrix Cells in Distance OrderVideo
Solution74.6%Easy
Array, Geometry +3· 1 company
1260. Shift 2D GridVideo
Solution74.3%Easy
Array, Matrix +1· 1 company
1275. Find Winner on a Tic Tac Toe GameVideo
Solution54.6%Easy
Array, Hash Table +2· 7 companies
1337. The K Weakest Rows in a MatrixVideo
Solution74.3%Easy
Array, Binary Search +3· 5 companies
1351. Count Negative Numbers in a Sorted MatrixVideo
Solution79.6%Easy
Array, Binary Search +1· 6 companies
1380. Lucky Numbers in a MatrixVideo
Solution79.9%Easy
Array, Matrix· 3 companies
1572. Matrix Diagonal SumVideo
Solution84.2%Easy
Array, Matrix· 6 companies
1582. Special Positions in a Binary MatrixVideo
Solution72.6%Easy
Array, Matrix· 3 companies
1672. Richest Customer WealthVideo
Solution88.9%Easy
Array, Matrix· 5 companies
1886. Determine Whether Matrix Can Be Obtained By RotationVideo
Solution68.2%Easy
Array, Matrix· 4 companies
2022. Convert 1D Array Into 2D ArrayVideo
Solution72.2%Easy
Array, Matrix +1· 5 companies
2133. Check if Every Row and Column Contains All NumbersVideo
Solution54.0%Easy
Array, Hash Table +1· 4 companies
2319. Check if Matrix Is X-MatrixVideo
Solution67.2%Easy
Array, Matrix· 2 companies
2373. Largest Local Values in a MatrixVideo
Solution87.8%Easy
Array, Matrix· 4 companies
2500. Delete Greatest Value in Each RowVideo
Solution80.5%Easy
Array, Heap (Priority Queue) +3· 2 companies
2614. Prime In DiagonalVideo
Solution39.6%Easy
Array, Math +2· 1 company
2639. Find the Width of Columns of a GridVideo
Solution71.0%Easy
Array, Matrix· 2 companies
2643. Row With Maximum OnesVideo
Solution74.2%Easy
Array, Matrix· 4 companies
2923. Find Champion IVideo
Solution73.3%Easy
Array, Matrix· 1 company
2946. Matrix Similarity After Cyclic ShiftsVideo
Solution74.3%Easy
Array, Math +2· 5 companies
2965. Find Missing and Repeated ValuesVideo
Solution83.2%Easy
Array, Hash Table +2· 6 companies
3033. Modify the MatrixVideo
Solution69.1%Easy
Array, Matrix· 1 company
3127. Make a Square with the Same ColorVideo
Solution53.0%Easy
Array, Enumeration +1
3142. Check if Grid Satisfies ConditionsVideo
Solution45.7%Easy
Array, Matrix
3242. Design Neighbor Sum ServiceVideo
Solution76.4%Easy
Array, Design +3
3402. Minimum Operations to Make Columns Strictly IncreasingVideo
Solution71.9%Easy
Array, Greedy +1· 1 company
3417. Zigzag Grid Traversal With SkipVideo
Solution64.9%Easy
Array, Matrix +1· 3 companies
3643. Flip Square Submatrix VerticallyVideo
Solution79.3%Easy
Array, Matrix +1· 2 companies
3898. Find the Degree of Each VertexVideo
Solution91.8%Easy
Array, Graph +1
4052. Cyclically Shift Rows and ColumnsVideo
Solution75.9%Easy
Array, Matrix +1
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