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Duolingo DSA Interview Questions
5 curated coding interview questions directly asked in Duolingo technical rounds, sorted by frequency with recency and difficulty diagnostics.
5
Total Questions
0 (0%)
Easy Problems
3 (60%)
Medium Problems
2 (40%)
Hard Problems
🔥 Most Tested Topics:
Arrays (3)Strings (1)Dynamic Programming (1)Greedy (1)
📂 Sourced Datasets:
All questionsOlder than 6 months
| ID | Problem | Difficulty | Topic | Pattern | Acceptance | Frequency | Recency |
|---|---|---|---|---|---|---|---|
| 2227 | Encrypt and Decrypt Strings | Hard | Strings | Hashing / Sliding Window | 38.4% | 100.0% | all |
| 2090 | K Radius Subarray Averages | Medium | Arrays | Sorting / Prefix / Scan | 46.2% | 87.5% | all |
| 1733 | Minimum Number of People to Teach | Medium | Arrays | Sorting / Prefix / Scan | 67.4% | 87.5% | all |
| 329 | Longest Increasing Path in a Matrix | Hard | Arrays; Dynamic Programming | Sorting / Prefix / Scan; State Transition | 56.6% | 75.0% | all |
| 2365 | Task Scheduler II | Medium | Greedy | Greedy | 54.8% | 62.5% | all |