Practice problems across 75+ categories
Practice coding problems across all companies and topics • 3600 problems | 879 Easy | 1856 Medium | 842 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 3211 | Reverse Words in a String III | Easy | Two PointersString |
| 3212 | Reward Top K Students | Medium | ArrayHash TableString |
| 3213 | Richest Customer Wealth | Easy | ArrayMatrix |
| 3214 | Right Triangles | Medium | ArrayHash TableMath |
| 3215 | Rings and Rods | Easy | Hash TableString |
| 3216 | Rising Temperature | Easy | Database |
| 3217 | RLE Iterator | Medium | ArrayDesignCounting |
| 3218 | Robot Bounded In Circle | Medium | MathStringSimulation |
| 3219 | Robot Collisions | Hard | ArrayStackSorting |
| 3220 | Robot Return to Origin | Easy | StringSimulation |
| 3221 | Robot Room Cleaner | Hard | BacktrackingInteractive |
| 3222 | Rod Cutting Problem | Medium | Dynamic ProgrammingDPArray |
| 3223 | Rolling Average Steps | Medium | Database |
| 3224 | Roman to Integer | Easy | Hash TableMathString |
| 3225 | Root Equals Sum of Children | Easy | TreeBinary Tree |
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