36 curated coding interview questions directly asked in Rubrik technical rounds, sorted by frequency with recency and difficulty diagnostics.
| ID | Problem | Difficulty | Topic | Pattern | Acceptance | Frequency | Recency |
|---|---|---|---|---|---|---|---|
| 2193 | Minimum Number of Moves to Make Palindrome | Hard | Arrays; Strings | Sorting / Prefix / Scan; Hashing / Sliding Window | 52.8% | 100.0% | 3m |
| 3207 | Maximum Points After Enemy Battles | Medium | Arrays | Sorting / Prefix / Scan | 33.4% | 100.0% | all |
| 2249 | Count Lattice Points Inside a Circle | Medium | Core DSA | Implementation / Reasoning | 56.7% | 87.5% | 6m |
| 3410 | Maximize Subarray Sum After Removing All Occurrences of One Element | Hard | Arrays | Sorting / Prefix / Scan | 23.1% | 75.0% | all |
| 3426 | Manhattan Distances of All Arrangements of Pieces | Hard | Core DSA | Implementation / Reasoning | 35.4% | 75.0% | all |
| 2928 | Distribute Candies Among Children I | Easy | Core DSA | Implementation / Reasoning | 76.4% | 62.5% | all |
| 2929 | Distribute Candies Among Children II | Medium | Core DSA | Implementation / Reasoning | 55.6% | 62.5% | all |
| 2927 | Distribute Candies Among Children III | Hard | Core DSA | Implementation / Reasoning | 57.2% | 62.5% | all |
| 2132 | Stamping the Grid | Hard | Core DSA | Implementation / Reasoning | 35.4% | 62.5% | all |
| 3021 | Alice and Bob Playing Flower Game | Medium | Core DSA | Implementation / Reasoning | 60.0% | 62.5% | all |
| 723 | Candy Crush | Medium | Core DSA | Implementation / Reasoning | 77.4% | 62.5% | all |
| 3098 | Find the Sum of Subsequence Powers | Hard | Arrays | Sorting / Prefix / Scan | 25.1% | 62.5% | all |
| 3083 | Existence of a Substring in a String and Its Reverse | Easy | Strings; Trees | Hashing / Sliding Window; DFS / BFS | 66.5% | 62.5% | all |
| 528 | Random Pick with Weight | Medium | Core DSA | Implementation / Reasoning | 49.1% | 62.5% | all |
| 2982 | Find Longest Special Substring That Occurs Thrice II | Medium | Strings; Trees | Hashing / Sliding Window; DFS / BFS | 39.2% | 62.5% | all |
| 3525 | Find X Value of Array II | Hard | Arrays | Sorting / Prefix / Scan | 31.3% | 62.5% | all |
| 3524 | Find X Value of Array I | Medium | Arrays | Sorting / Prefix / Scan | 37.5% | 62.5% | all |
| 621 | Task Scheduler | Medium | Greedy | Greedy | 63.1% | 50.0% | all |
| 146 | LRU Cache | Medium | Design | Data Structure Design | 47.4% | 50.0% | all |
| 1242 | Web Crawler Multithreaded | Medium | Core DSA | Implementation / Reasoning | 51.2% | 50.0% | all |
| 301 | Remove Invalid Parentheses | Hard | Strings | Hashing / Sliding Window | 49.9% | 50.0% | all |
| 1146 | Snapshot Array | Medium | Arrays | Sorting / Prefix / Scan | 36.8% | 50.0% | all |
| 18 | 4Sum | Medium | Arrays | Sorting / Prefix / Scan | 40.6% | 37.5% | all |
| 31 | Next Permutation | Medium | Backtracking | Backtracking | 45.3% | 37.5% | all |
| 87 | Scramble String | Hard | Strings | Hashing / Sliding Window | 44.6% | 37.5% | all |
| 211 | Design Add and Search Words Data Structure | Medium | Strings; Binary Search; Design | Hashing / Sliding Window; Binary Search; Data Structure Design | 48.5% | 37.5% | all |
| 380 | Insert Delete GetRandom O(1) | Medium | Core DSA | Implementation / Reasoning | 55.4% | 37.5% | all |
| 1463 | Cherry Pickup II | Hard | Core DSA | Implementation / Reasoning | 72.4% | 37.5% | all |
| 1236 | Web Crawler | Medium | Core DSA | Implementation / Reasoning | 68.8% | 37.5% | all |
| 2502 | Design Memory Allocator | Medium | Design | Data Structure Design | 50.1% | 37.5% | all |
| 2365 | Task Scheduler II | Medium | Greedy | Greedy | 54.8% | 37.5% | all |
| 622 | Design Circular Queue | Medium | Stack / Queue; Design | Monotonic Stack / Simulation; Data Structure Design | 54.7% | 37.5% | all |
| 761 | Special Binary String | Hard | Strings | Hashing / Sliding Window | 79.3% | 37.5% | all |
| 2747 | Count Zero Request Servers | Medium | Core DSA | Implementation / Reasoning | 35.9% | 37.5% | all |
| 276 | Paint Fence | Medium | Core DSA | Implementation / Reasoning | 48.4% | 37.5% | all |
| 1202 | Smallest String With Swaps | Medium | Strings | Hashing / Sliding Window | 60.6% | 37.5% | all |