Practice problems across 75+ categories
Practice problems frequently asked at Google • 3407 problems | 851 Easy | 1775 Medium | 761 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 3211 | The Knight's Tour | Medium | ArrayBacktrackingMatrix |
| 3212 | The Latest Login in 2020 | Easy | Database |
| 3213 | The Latest Time to Catch a Bus | Medium | ArrayTwo PointersBinary Search |
| 3214 | The Maze | Medium | ArrayDepth-First SearchBreadth-First Search |
| 3215 | The Maze II | Medium | ArrayDepth-First SearchBreadth-First Search |
| 3216 | The Maze III | Hard | ArrayStringDepth-First Search |
| 3217 | The Most Frequently Ordered Products for Each Customer | Medium | Database |
| 3218 | The Most Recent Orders for Each Product | Medium | Database |
| 3219 | The Most Recent Three Orders | Medium | Database |
| 3220 | The Most Similar Path in a Graph | Hard | Dynamic ProgrammingGraph |
| 3221 | The Number of Beautiful Subsets | Medium | ArrayHash TableMath |
| 3222 | The Number of Employees Which Report to Each Employee | Easy | Database |
| 3223 | The Number of Full Rounds You Have Played | Medium | MathString |
| 3224 | The Number of Good Subsets | Hard | ArrayHash TableMath |
| 3225 | The Number of Passengers in Each Bus I | Medium | Database |
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