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Dropbox DSA Interview Questions
22 curated coding interview questions directly asked in Dropbox technical rounds, sorted by frequency with recency and difficulty diagnostics.
22
Total Questions
2 (9%)
Easy Problems
10 (45%)
Medium Problems
10 (45%)
Hard Problems
🔥 Most Tested Topics:
Core DSA (9)Strings (6)Arrays (5)Design (2)Heap (1)
📂 Sourced Datasets:
Last 6 monthsAll questionsOlder than 6 months
| ID | Problem | Difficulty | Topic | Pattern | Acceptance | Frequency | Recency |
|---|---|---|---|---|---|---|---|
| 135 | Candy | Hard | Core DSA | Implementation / Reasoning | 48.5% | 100.0% | 6m |
| 2043 | Simple Bank System | Medium | Core DSA | Implementation / Reasoning | 69.7% | 100.0% | 6m |
| 1 | Two Sum | Easy | Arrays | Sorting / Prefix / Scan; Two Pointers | 57.5% | 100.0% | all |
| 4 | Median of Two Sorted Arrays | Hard | Arrays; Heap | Sorting / Prefix / Scan; Priority Queue | 46.6% | 100.0% | all |
| 17 | Letter Combinations of a Phone Number | Medium | Strings; Backtracking | Hashing / Sliding Window; Backtracking | 66.1% | 100.0% | all |
| 1001 | Grid Illumination | Hard | Core DSA | Implementation / Reasoning | 39.3% | 100.0% | all |
| 609 | Find Duplicate File in System | Medium | Arrays | Sorting / Prefix / Scan | 67.5% | 100.0% | all |
| 140 | Word Break II | Hard | Strings; Dynamic Programming | Hashing / Sliding Window; State Transition | 55.6% | 100.0% | all |
| 1236 | Web Crawler | Medium | Core DSA | Implementation / Reasoning | 68.8% | 100.0% | all |
| 1178 | Number of Valid Words for Each Puzzle | Hard | Strings | Hashing / Sliding Window | 47.8% | 100.0% | all |
| 290 | Word Pattern | Easy | Strings | Hashing / Sliding Window | 44.1% | 100.0% | all |
| 289 | Game of Life | Medium | Core DSA | Implementation / Reasoning | 72.6% | 100.0% | all |
| 291 | Word Pattern II | Medium | Strings | Hashing / Sliding Window | 48.8% | 100.0% | all |
| 2296 | Design a Text Editor | Hard | Design | Data Structure Design | 50.7% | 100.0% | all |
| 1242 | Web Crawler Multithreaded | Medium | Core DSA | Implementation / Reasoning | 51.2% | 100.0% | all |
| 1250 | Check If It Is a Good Array | Hard | Arrays | Sorting / Prefix / Scan | 65.0% | 100.0% | all |
| 362 | Design Hit Counter | Medium | Design | Data Structure Design | 69.7% | 100.0% | all |
| 1845 | Seat Reservation Manager | Medium | Core DSA | Implementation / Reasoning | 67.2% | 100.0% | all |
| 924 | Minimize Malware Spread | Hard | Core DSA | Implementation / Reasoning | 43.2% | 100.0% | all |
| 928 | Minimize Malware Spread II | Hard | Core DSA | Implementation / Reasoning | 45.6% | 100.0% | all |
| 843 | Guess the Word | Hard | Strings | Hashing / Sliding Window | 36.7% | 75.0% | all |
| 56 | Merge Intervals | Medium | Arrays | Sorting / Prefix / Scan | 51.8% | 62.5% | all |