Practice problems across 75+ categories
Practice problems frequently asked at Amazon • 3399 problems | 851 Easy | 1772 Medium | 756 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 2311 | Movie Rating | Medium | Database |
| 2312 | Moving Average from Data Stream | Easy | ArrayDesignQueue |
| 2313 | Moving Stones Until Consecutive | Medium | MathBrainteaser |
| 2314 | Moving Stones Until Consecutive II | Medium | ArrayMathSliding Window |
| 2315 | Multiply Strings | Medium | MathStringSimulation |
| 2316 | Multiply Two Polynomials | Hard | ArrayMath |
| 2317 | My Calendar I | Medium | ArrayBinary SearchDesign |
| 2318 | My Calendar II | Medium | ArrayBinary SearchDesign |
| 2319 | My Calendar III | Hard | Binary SearchDesignSegment Tree |
| 2320 | N-ary Tree Level Order Traversal | Medium | TreeBreadth-First Search |
| 2321 | N-ary Tree Postorder Traversal | Easy | StackTreeDepth-First Search |
| 2322 | N-ary Tree Preorder Traversal | Easy | StackTreeDepth-First Search |
| 2323 | N-Queens | Hard | ArrayBacktracking |
| 2324 | N-Queens II | Hard | Backtracking |
| 2325 | N-Repeated Element in Size 2N Array | Easy | ArrayHash Table |
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