Practice problems across 75+ categories
Practice problems frequently asked at Amazon • 3399 problems | 851 Easy | 1772 Medium | 756 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 2656 | Push Dominoes | Medium | Two PointersStringDynamic Programming |
| 2657 | Put Boxes Into the Warehouse I | Medium | ArrayGreedySorting |
| 2658 | Put Boxes Into the Warehouse II | Medium | ArrayGreedySorting |
| 2659 | Put Marbles in Bags | Hard | ArrayGreedySorting |
| 2660 | Pyramid Transition Matrix | Medium | Hash TableStringBacktracking |
| 2661 | Queens That Can Attack the King | Medium | ArrayMatrixSimulation |
| 2662 | Queries on a Permutation With Key | Medium | ArrayBinary Indexed TreeSimulation |
| 2663 | Queries on Number of Points Inside a Circle | Medium | ArrayMathGeometry |
| 2664 | Queries Quality and Percentage | Easy | Database |
| 2665 | Query Batching | Hard | JavaScript |
| 2666 | Query Kth Smallest Trimmed Number | Medium | ArrayStringDivide and Conquer |
| 2667 | Queue Reconstruction by Height | Medium | ArrayBinary Indexed TreeSegment Tree |
| 2668 | Rabbits in Forest | Medium | ArrayHash TableMath |
| 2669 | Race Car | Hard | Dynamic Programming |
| 2670 | Random Flip Matrix | Medium | Hash TableMathReservoir Sampling |
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