All companies
Tripadvisor
3 Easy3 Medium0 Hard6 total
| No. | Problem | Difficulty | Frequency |
|---|---|---|---|
| 1002 | Find Common Characters | Easy | |
| 20 | Valid Parentheses | Easy | |
| 146 | LRU Cache | Medium | |
| 383 | Ransom Note | Easy | |
| 240 | Search a 2D Matrix II | Medium | |
| 155 | Min Stack | Medium |
3 Easy3 Medium0 Hard6 total
| No. | Problem | Difficulty | Frequency |
|---|---|---|---|
| 1002 | Find Common Characters | Easy | |
| 20 | Valid Parentheses | Easy | |
| 146 | LRU Cache | Medium | |
| 383 | Ransom Note | Easy | |
| 240 | Search a 2D Matrix II | Medium | |
| 155 | Min Stack | Medium |