Problems that don't fit neatly into a single category — mixed concepts and techniques.
| Problem | Difficulty | Approach |
|---|---|---|
| 169. Majority Element (Alternative) | Easy | Alternative Approach |
| 205. Isomorphic String (Alternative) | Easy | Alternative Approach |
| 242. Valid Anagram (Alternative) | Easy | Alternative Approach |
| 1365. How Many Questions.Numbers Are Smaller | Easy | Sorting |
| 1672. Richest Customer Wealth | Easy | 2D Array |