9 curated coding interview questions directly asked in Ripple technical rounds, sorted by frequency with recency and difficulty diagnostics.
| ID | Problem | Difficulty | Topic | Pattern | Acceptance | Frequency | Recency |
|---|---|---|---|---|---|---|---|
| 443 | String Compression | Medium | Strings | Hashing / Sliding Window | 60.0% | 100.0% | all |
| 56 | Merge Intervals | Medium | Arrays | Sorting / Prefix / Scan | 51.8% | 100.0% | all |
| 238 | Product of Array Except Self | Medium | Arrays | Sorting / Prefix / Scan | 68.9% | 87.5% | all |
| 560 | Subarray Sum Equals K | Medium | Arrays | Sorting / Prefix / Scan | 47.3% | 87.5% | all |
| 146 | LRU Cache | Medium | Design | Data Structure Design | 47.4% | 87.5% | all |
| 875 | Koko Eating Bananas | Medium | Binary Search | Binary Search | 50.0% | 87.5% | all |
| 224 | Basic Calculator | Hard | Stack / Queue | Monotonic Stack / Simulation | 46.9% | 87.5% | all |
| 853 | Car Fleet | Medium | Core DSA | Implementation / Reasoning | 55.1% | 87.5% | all |
| 1047 | Remove All Adjacent Duplicates In String | Easy | Arrays; Strings | Sorting / Prefix / Scan; Hashing / Sliding Window | 73.2% | 87.5% | all |