2 curated coding interview questions directly asked in Oppo technical rounds, sorted by frequency with recency and difficulty diagnostics.
| ID | Problem | Difficulty | Topic | Pattern | Acceptance | Frequency | Recency |
|---|---|---|---|---|---|---|---|
| 221 | Maximal Square | Medium | Core DSA | Implementation / Reasoning | 50.3% | 100.0% | all |
| 643 | Maximum Average Subarray I | Easy | Arrays | Sorting / Prefix / Scan | 47.8% | 100.0% | all |