Practice problems across 75+ categories
Practice problems frequently asked at Amazon • 3399 problems | 851 Easy | 1772 Medium | 756 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 2791 | Restaurant Growth | Medium | Database |
| 2792 | Restore IP Addresses | Medium | StringBacktracking |
| 2793 | Restore The Array | Hard | StringDynamic Programming |
| 2794 | Restore the Array From Adjacent Pairs | Medium | ArrayHash TableDepth-First Search |
| 2795 | Resulting String After Adjacent Removals | Medium | StringStackSimulation |
| 2796 | Reveal Cards In Increasing Order | Medium | ArrayQueueSorting |
| 2797 | Reverse Bits | Easy | Divide and ConquerBit Manipulation |
| 2798 | Reverse Degree of a String | Easy | StringSimulation |
| 2799 | Reverse Integer | Medium | Math |
| 2800 | Reverse Linked List | Easy | Linked ListRecursion |
| 2801 | Reverse Linked List II | Medium | Linked List |
| 2802 | Reverse Nodes in Even Length Groups | Medium | Linked List |
| 2803 | Reverse Nodes in k-Group | Hard | Linked ListRecursion |
| 2804 | Reverse Odd Levels of Binary Tree | Medium | TreeDepth-First SearchBreadth-First Search |
| 2805 | Reverse Only Letters | Easy | Two PointersString |
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