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Roku DSA Interview Questions
17 curated coding interview questions directly asked in Roku technical rounds, sorted by frequency with recency and difficulty diagnostics.
17
Total Questions
3 (18%)
Easy Problems
10 (59%)
Medium Problems
4 (24%)
Hard Problems
🔥 Most Tested Topics:
Core DSA (5)Strings (5)Arrays (3)Dynamic Programming (1)Stack / Queue (1)
📂 Sourced Datasets:
Last 6 monthsAll questionsOlder than 6 months
| ID | Problem | Difficulty | Topic | Pattern | Acceptance | Frequency | Recency |
|---|---|---|---|---|---|---|---|
| 864 | Shortest Path to Get All Keys | Hard | Core DSA | Implementation / Reasoning | 54.6% | 100.0% | 6m |
| 394 | Decode String | Medium | Strings; Dynamic Programming; Stack / Queue | Hashing / Sliding Window; State Transition; Monotonic Stack / Simulation | 62.6% | 87.5% | all |
| 146 | LRU Cache | Medium | Design | Data Structure Design | 47.4% | 87.5% | all |
| 347 | Top K Frequent Elements | Medium | Heap | Priority Queue | 66.4% | 87.5% | all |
| 678 | Valid Parenthesis String | Medium | Strings | Hashing / Sliding Window | 40.1% | 87.5% | all |
| 695 | Max Area of Island | Medium | Graphs | BFS / DFS / Topological Sort | 74.0% | 87.5% | all |
| 844 | Backspace String Compare | Easy | Strings | Hashing / Sliding Window | 49.9% | 75.0% | all |
| 43 | Multiply Strings | Medium | Strings | Hashing / Sliding Window | 44.2% | 75.0% | all |
| 628 | Maximum Product of Three Numbers | Easy | Arrays | Sorting / Prefix / Scan | 45.9% | 75.0% | all |
| 1004 | Max Consecutive Ones III | Medium | Core DSA | Implementation / Reasoning | 67.7% | 75.0% | all |
| 679 | 24 Game | Hard | Core DSA | Implementation / Reasoning | 59.5% | 75.0% | all |
| 680 | Valid Palindrome II | Easy | Strings | Hashing / Sliding Window | 44.3% | 75.0% | all |
| 135 | Candy | Hard | Core DSA | Implementation / Reasoning | 48.5% | 75.0% | all |
| 983 | Minimum Cost For Tickets | Medium | Arrays | Sorting / Prefix / Scan | 67.4% | 75.0% | all |
| 15 | 3Sum | Medium | Arrays | Sorting / Prefix / Scan | 39.1% | 75.0% | all |
| 987 | Vertical Order Traversal of a Binary Tree | Hard | Trees | DFS / BFS | 53.8% | 75.0% | all |
| 735 | Asteroid Collision | Medium | Core DSA | Implementation / Reasoning | 47.9% | 75.0% | all |