6 curated coding interview questions directly asked in Upstart technical rounds, sorted by frequency with recency and difficulty diagnostics.
| ID | Problem | Difficulty | Topic | Pattern | Acceptance | Frequency | Recency |
|---|---|---|---|---|---|---|---|
| 53 | Maximum Subarray | Medium | Arrays | Sorting / Prefix / Scan | 53.3% | 100.0% | 3m |
| 36 | Valid Sudoku | Medium | Strings; Backtracking | Hashing / Sliding Window; Backtracking | 64.5% | 75.0% | 6m |
| 49 | Group Anagrams | Medium | Strings | Hashing / Sliding Window | 72.6% | 75.0% | 6m |
| 71 | Simplify Path | Medium | Core DSA | Implementation / Reasoning | 50.6% | 62.5% | all |
| 304 | Range Sum Query 2D - Immutable | Medium | Arrays | Sorting / Prefix / Scan | 58.3% | 62.5% | all |
| 120 | Triangle | Medium | Core DSA | Implementation / Reasoning | 59.9% | 62.5% | all |