Practice problems across 75+ categories
Practice problems frequently asked at Amazon • 3399 problems | 851 Easy | 1772 Medium | 756 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 2761 | Remove Stones to Minimize the Total | Medium | ArrayGreedyHeap (Priority Queue) |
| 2762 | Remove Sub-Folders from the Filesystem | Medium | ArrayStringDepth-First Search |
| 2763 | Remove Trailing Zeros From a String | Easy | String |
| 2764 | Remove Vowels from a String | Easy | String |
| 2765 | Removing Minimum and Maximum From Array | Medium | ArrayGreedy |
| 2766 | Removing Minimum Number of Magic Beans | Medium | ArrayGreedySorting |
| 2767 | Removing Stars From a String | Medium | StringStackSimulation |
| 2768 | Rename Columns | Easy | Database |
| 2769 | Reorder Data in Log Files | Medium | ArrayStringSorting |
| 2770 | Reorder List | Medium | Linked ListTwo PointersStack |
| 2771 | Reorder Routes to Make All Paths Lead to the City Zero | Medium | Depth-First SearchBreadth-First SearchGraph |
| 2772 | Reordered Power of 2 | Medium | Hash TableMathSorting |
| 2773 | Repeat String | Easy | JavaScript |
| 2774 | Repeated DNA Sequences | Medium | Hash TableStringBit Manipulation |
| 2775 | Repeated String Match | Medium | StringString Matching |
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