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Atlassian DSA Interview Questions
61 curated coding interview questions directly asked in Atlassian technical rounds, sorted by frequency with recency and difficulty diagnostics.
61
Total Questions
6 (10%)
Easy Problems
42 (69%)
Medium Problems
13 (21%)
Hard Problems
🔥 Most Tested Topics:
Core DSA (23)Arrays (13)Design (9)Strings (8)Trees (6)
📂 Sourced Datasets:
Last 6 monthsAll questionsOlder than 6 months
| ID | Problem | Difficulty | Topic | Pattern | Acceptance | Frequency | Recency |
|---|---|---|---|---|---|---|---|
| 432 | All O`one Data Structure | Hard | Core DSA | Implementation / Reasoning | 44.3% | 100.0% | 6m |
| 2034 | Stock Price Fluctuation | Medium | Core DSA | Implementation / Reasoning | 49.0% | 100.0% | all |
| 1366 | Rank Teams by Votes | Medium | Core DSA | Implementation / Reasoning | 60.1% | 100.0% | all |
| 79 | Word Search | Medium | Strings; Binary Search | Hashing / Sliding Window; Binary Search | 47.4% | 87.5% | 6m |
| 56 | Merge Intervals | Medium | Arrays | Sorting / Prefix / Scan | 51.8% | 87.5% | 6m |
| 353 | Design Snake Game | Medium | Design | Data Structure Design | 40.0% | 75.0% | 6m |
| 1676 | Lowest Common Ancestor of a Binary Tree IV | Medium | Trees | DFS / BFS | 79.6% | 75.0% | 6m |
| 2933 | High-Access Employees | Medium | Core DSA | Implementation / Reasoning | 47.5% | 75.0% | all |
| 253 | Meeting Rooms II | Medium | Greedy | Greedy | 52.7% | 75.0% | all |
| 236 | Lowest Common Ancestor of a Binary Tree | Medium | Trees | DFS / BFS | 69.3% | 75.0% | all |
| 68 | Text Justification | Hard | Core DSA | Implementation / Reasoning | 51.2% | 62.5% | all |
| 2959 | Number of Possible Sets of Closing Branches | Hard | Core DSA | Implementation / Reasoning | 51.0% | 62.5% | all |
| 2948 | Make Lexicographically Smallest Array by Swapping Elements | Medium | Arrays; Graphs | Sorting / Prefix / Scan; BFS / DFS / Topological Sort | 60.3% | 62.5% | all |
| 2976 | Minimum Cost to Convert String I | Medium | Arrays; Strings | Sorting / Prefix / Scan; Hashing / Sliding Window | 63.2% | 62.5% | all |
| 2977 | Minimum Cost to Convert String II | Hard | Arrays; Strings | Sorting / Prefix / Scan; Hashing / Sliding Window | 59.6% | 62.5% | all |
| 3026 | Maximum Good Subarray Sum | Medium | Arrays | Sorting / Prefix / Scan | 21.9% | 62.5% | all |
| 1307 | Verbal Arithmetic Puzzle | Hard | Core DSA | Implementation / Reasoning | 34.9% | 62.5% | all |
| 2598 | Smallest Missing Non-negative Integer After Operations | Medium | Arrays | Sorting / Prefix / Scan | 56.0% | 62.5% | all |
| 2577 | Minimum Time to Visit a Cell In a Grid | Hard | Arrays | Sorting / Prefix / Scan | 56.3% | 62.5% | all |
| 2975 | Maximum Square Area by Removing Fences From a Field | Medium | Arrays | Sorting / Prefix / Scan | 49.5% | 62.5% | all |
| 3000 | Maximum Area of Longest Diagonal Rectangle | Easy | Arrays | Sorting / Prefix / Scan | 45.9% | 62.5% | all |
| 2639 | Find the Width of Columns of a Grid | Easy | Core DSA | Implementation / Reasoning | 70.5% | 62.5% | all |
| 49 | Group Anagrams | Medium | Strings | Hashing / Sliding Window | 72.6% | 50.0% | all |
| 1048 | Longest String Chain | Medium | Strings | Hashing / Sliding Window | 63.0% | 50.0% | all |
| 121 | Best Time to Buy and Sell Stock | Easy | Core DSA | Implementation / Reasoning | 56.8% | 50.0% | all |
| 359 | Logger Rate Limiter | Easy | Design | Data Structure Design | 76.8% | 50.0% | all |
| 875 | Koko Eating Bananas | Medium | Binary Search | Binary Search | 50.0% | 50.0% | all |
| 347 | Top K Frequent Elements | Medium | Heap | Priority Queue | 66.4% | 50.0% | all |
| 605 | Can Place Flowers | Easy | Core DSA | Implementation / Reasoning | 29.1% | 50.0% | all |
| 354 | Russian Doll Envelopes | Hard | Core DSA | Implementation / Reasoning | 37.9% | 50.0% | all |
| 2039 | The Time When the Network Becomes Idle | Medium | Graphs | BFS / DFS / Topological Sort | 55.6% | 50.0% | all |
| 1 | Two Sum | Easy | Arrays | Sorting / Prefix / Scan; Two Pointers | 57.5% | 37.5% | all |
| 3 | Longest Substring Without Repeating Characters | Medium | Strings; Trees | Hashing / Sliding Window; DFS / BFS; Sliding Window | 39.1% | 37.5% | all |
| 1166 | Design File System | Medium | Design | Data Structure Design | 65.1% | 37.5% | all |
| 229 | Majority Element II | Medium | Core DSA | Implementation / Reasoning | 56.2% | 37.5% | all |
| 300 | Longest Increasing Subsequence | Medium | Dynamic Programming | State Transition | 59.4% | 37.5% | all |
| 362 | Design Hit Counter | Medium | Design | Data Structure Design | 69.7% | 37.5% | all |
| 658 | Find K Closest Elements | Medium | Core DSA | Implementation / Reasoning | 49.7% | 37.5% | all |
| 45 | Jump Game II | Medium | Greedy | Greedy | 42.9% | 37.5% | all |
| 881 | Boats to Save People | Medium | Core DSA | Implementation / Reasoning | 61.8% | 37.5% | all |
| 128 | Longest Consecutive Sequence | Medium | Core DSA | Implementation / Reasoning | 47.1% | 37.5% | all |
| 1010 | Pairs of Songs With Total Durations Divisible by 60 | Medium | Core DSA | Implementation / Reasoning | 53.5% | 37.5% | all |
| 177 | Nth Highest Salary | Medium | Core DSA | Implementation / Reasoning | 39.2% | 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 |
| 2559 | Count Vowel Strings in Ranges | Medium | Strings | Hashing / Sliding Window | 67.8% | 37.5% | all |
| 34 | Find First and Last Position of Element in Sorted Array | Medium | Arrays | Sorting / Prefix / Scan | 48.9% | 37.5% | all |
| 1650 | Lowest Common Ancestor of a Binary Tree III | Medium | Trees | DFS / BFS | 83.0% | 37.5% | all |
| 53 | Maximum Subarray | Medium | Arrays | Sorting / Prefix / Scan | 53.3% | 37.5% | all |
| 2353 | Design a Food Rating System | Medium | Design | Data Structure Design | 52.9% | 37.5% | all |
| 1970 | Last Day Where You Can Still Cross | Hard | Core DSA | Implementation / Reasoning | 68.7% | 37.5% | all |
| 146 | LRU Cache | Medium | Design | Data Structure Design | 47.4% | 37.5% | all |
| 2484 | Count Palindromic Subsequences | Hard | Core DSA | Implementation / Reasoning | 41.2% | 37.5% | all |
| 2561 | Rearranging Fruits | Hard | Core DSA | Implementation / Reasoning | 57.3% | 37.5% | all |
| 1644 | Lowest Common Ancestor of a Binary Tree II | Medium | Trees | DFS / BFS | 69.7% | 37.5% | all |
| 1797 | Design Authentication Manager | Medium | Design | Data Structure Design | 58.6% | 37.5% | all |
| 44 | Wildcard Matching | Hard | Core DSA | Implementation / Reasoning | 32.0% | 37.5% | all |
| 297 | Serialize and Deserialize Binary Tree | Hard | Trees; Design | DFS / BFS; Data Structure Design | 60.8% | 37.5% | all |
| 31 | Next Permutation | Medium | Backtracking | Backtracking | 45.3% | 37.5% | all |
| 3649 | Number of Perfect Pairs | Medium | Core DSA | Implementation / Reasoning | 34.1% | 37.5% | all |
| 2939 | Maximum Xor Product | Medium | Arrays | Sorting / Prefix / Scan | 29.9% | 37.5% | all |
| 956 | Tallest Billboard | Hard | Core DSA | Implementation / Reasoning | 51.9% | 37.5% | all |