Practice problems across 75+ categories
Practice problems frequently asked at Meta • 2900 problems | 652 Easy | 1528 Medium | 703 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 2431 | Running Total for Different Genders | Medium | Database |
| 2432 | Sales Analysis I | Easy | Database |
| 2433 | Sales Analysis II | Easy | Database |
| 2434 | Sales Analysis III | Easy | Database |
| 2435 | Sales by Day of the Week | Hard | Database |
| 2436 | Sales Person | Easy | Database |
| 2437 | Score After Flipping Matrix | Medium | ArrayGreedyBit Manipulation |
| 2438 | Score of a String | Easy | String |
| 2439 | Score of Parentheses | Medium | StringStack |
| 2440 | Scramble String | Hard | StringDynamic Programming |
| 2441 | Search a 2D Matrix | Medium | ArrayBinary SearchMatrix |
| 2442 | Search a 2D Matrix II | Medium | ArrayBinary SearchDivide and Conquer |
| 2443 | Search in a Binary Search Tree | Easy | TreeBinary Search TreeBinary Tree |
| 2444 | Search in a Sorted Array of Unknown Size | Medium | ArrayBinary SearchInteractive |
| 2445 | Search in Rotated Sorted Array | Medium | ArrayBinary Search |
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