Practice problems across 75+ categories
Practice problems frequently asked at Google • 3407 problems | 851 Easy | 1775 Medium | 761 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 2716 | Rectangle Area II | Hard | ArraySegment TreeLine Sweep |
| 2717 | Rectangle Overlap | Easy | MathGeometry |
| 2718 | Rectangles Area | Medium | Database |
| 2719 | Recyclable and Low Fat Products | Easy | Database |
| 2720 | Redistribute Characters to Make All Strings Equal | Easy | Hash TableStringCounting |
| 2721 | Reduce Array Size to The Half | Medium | ArrayHash TableGreedy |
| 2722 | Reducing Dishes | Easy | ArrayDynamic ProgrammingGreedy |
| 2723 | Reduction Operations to Make the Array Elements Equal | Medium | ArraySorting |
| 2724 | Redundant Connection | Medium | Depth-First SearchBreadth-First SearchUnion Find |
| 2725 | Reformat Date | Easy | String |
| 2726 | Reformat Department Table | Easy | Database |
| 2727 | Reformat Phone Number | Easy | String |
| 2728 | Reformat The String | Easy | String |
| 2729 | Regions Cut By Slashes | Medium | ArrayHash TableDepth-First Search |
| 2730 | Regular Expression Matching | Hard | StringDynamic ProgrammingRecursion |
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