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Rakuten DSA Interview Questions
8 curated coding interview questions directly asked in Rakuten technical rounds, sorted by frequency with recency and difficulty diagnostics.
8
Total Questions
1 (12%)
Easy Problems
6 (75%)
Medium Problems
1 (12%)
Hard Problems
🔥 Most Tested Topics:
Core DSA (2)Arrays (2)Strings (2)Backtracking (1)Design (1)
📂 Sourced Datasets:
Last 6 monthsAll questionsOlder than 6 months
| ID | Problem | Difficulty | Topic | Pattern | Acceptance | Frequency | Recency |
|---|---|---|---|---|---|---|---|
| 42 | Trapping Rain Water | Hard | Core DSA | Two Pointers | 67.4% | 100.0% | 6m |
| 40 | Combination Sum II | Medium | Arrays; Backtracking | Sorting / Prefix / Scan; Backtracking | 59.5% | 100.0% | all |
| 146 | LRU Cache | Medium | Design | Data Structure Design | 47.4% | 87.5% | all |
| 48 | Rotate Image | Medium | Arrays | Sorting / Prefix / Scan | 80.1% | 87.5% | all |
| 443 | String Compression | Medium | Strings | Hashing / Sliding Window | 60.0% | 87.5% | all |
| 994 | Rotting Oranges | Medium | Core DSA | Implementation / Reasoning | 58.7% | 87.5% | all |
| 70 | Climbing Stairs | Easy | Dynamic Programming | State Transition | 54.1% | 87.5% | all |
| 3 | Longest Substring Without Repeating Characters | Medium | Strings; Trees | Hashing / Sliding Window; DFS / BFS; Sliding Window | 39.1% | 87.5% | all |