Rakuten
8 problems
| Problem | Difficulty | Frequency ↓ | Topics |
|---|---|---|---|
| 40. Combination Sum II | Medium | 100% | TopicsArrayBacktracking |
| 42. Trapping Rain Water | Hard | 100% | TopicsArrayTwo PointersDynamic ProgrammingStackMonotonic Stack |
| 146. LRU Cache | Medium | 88% | TopicsHash TableLinked ListDesignDoubly-Linked List |
| 48. Rotate Image | Medium | 88% | TopicsArrayMathMatrix |
| 443. String Compression | Medium | 88% | TopicsTwo PointersString |
| 994. Rotting Oranges | Medium | 88% | TopicsArrayBreadth-First SearchMatrix |
| 70. Climbing Stairs | Easy | 88% | TopicsMathDynamic ProgrammingMemoization |
| 3. Longest Substring Without Repeating Characters | Medium | 88% | TopicsHash TableStringSliding Window |
