4 curated coding interview questions directly asked in Hp technical rounds, sorted by frequency with recency and difficulty diagnostics.
| ID | Problem | Difficulty | Topic | Pattern | Acceptance | Frequency | Recency |
|---|---|---|---|---|---|---|---|
| 2379 | Minimum Recolors to Get K Consecutive Black Blocks | Easy | Arrays | Sorting / Prefix / Scan | 68.7% | 100.0% | all |
| 2087 | Minimum Cost Homecoming of a Robot in a Grid | Medium | Arrays | Sorting / Prefix / Scan | 51.7% | 87.5% | all |
| 409 | Longest Palindrome | Easy | Strings | Hashing / Sliding Window | 56.0% | 87.5% | all |
| 20 | Valid Parentheses | Easy | Strings | Hashing / Sliding Window | 44.2% | 75.0% | all |