DSA Doctor
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Reddit DSA Interview Questions
5 curated coding interview questions directly asked in Reddit technical rounds, sorted by frequency with recency and difficulty diagnostics.
5
Total Questions
1 (20%)
Easy Problems
3 (60%)
Medium Problems
1 (20%)
Hard Problems
🔥 Most Tested Topics:
Design (3)Strings (1)Core DSA (1)
📂 Sourced Datasets:
Last 6 monthsAll questionsOlder than 6 months
| ID | Problem | Difficulty | Topic | Pattern | Acceptance | Frequency | Recency |
|---|---|---|---|---|---|---|---|
| 127 | Word Ladder | Hard | Strings | Hashing / Sliding Window | 45.6% | 100.0% | 6m |
| 2240 | Number of Ways to Buy Pens and Pencils | Medium | Core DSA | Implementation / Reasoning | 56.9% | 100.0% | all |
| 362 | Design Hit Counter | Medium | Design | Data Structure Design | 69.7% | 75.0% | all |
| 146 | LRU Cache | Medium | Design | Data Structure Design | 47.4% | 75.0% | all |
| 359 | Logger Rate Limiter | Easy | Design | Data Structure Design | 76.8% | 75.0% | all |