Practice problems across 75+ categories
Practice coding problems across all companies and topics • 3600 problems | 879 Easy | 1856 Medium | 842 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 3001 | Reverse Vowels of a String | Easy | Two PointersString |
| 3002 | Reverse Words in a String | Medium | Two PointersString |
| 3003 | Reverse Words in a String II | Medium | Two PointersString |
| 3004 | Reverse Words in a String III | Easy | Two PointersString |
| 3005 | Reward Top K Students | Medium | ArrayHash TableString |
| 3006 | Richest Customer Wealth | Easy | ArrayMatrix |
| 3007 | Right Triangles | Medium | ArrayHash TableMath |
| 3008 | Rings and Rods | Easy | Hash TableString |
| 3009 | Rising Temperature | Easy | Database |
| 3010 | RLE Iterator | Medium | ArrayDesignCounting |
| 3011 | Robot Bounded In Circle | Medium | MathStringSimulation |
| 3012 | Robot Collisions | Hard | ArrayStackSorting |
| 3013 | Robot Return to Origin | Easy | StringSimulation |
| 3014 | Robot Room Cleaner | Hard | BacktrackingInteractive |
| 3015 | Rolling Average Steps | Medium | Database |
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