DSA Doctor
Verified Company Vault
Udemy DSA Interview Questions
7 curated coding interview questions directly asked in Udemy technical rounds, sorted by frequency with recency and difficulty diagnostics.
7
Total Questions
4 (57%)
Easy Problems
2 (29%)
Medium Problems
1 (14%)
Hard Problems
🔥 Most Tested Topics:
Strings (3)Arrays (3)Backtracking (1)Core DSA (1)Heap (1)
📂 Sourced Datasets:
Last 6 monthsAll questions
| ID | Problem | Difficulty | Topic | Pattern | Acceptance | Frequency | Recency |
|---|---|---|---|---|---|---|---|
| 36 | Valid Sudoku | Medium | Strings; Backtracking | Hashing / Sliding Window; Backtracking | 64.5% | 100.0% | 6m |
| 26 | Remove Duplicates from Sorted Array | Easy | Arrays | Sorting / Prefix / Scan; Two Pointers | 62.8% | 100.0% | 6m |
| 3477 | Fruits Into Baskets II | Easy | Core DSA | Implementation / Reasoning | 70.2% | 100.0% | 6m |
| 4 | Median of Two Sorted Arrays | Hard | Arrays; Heap | Sorting / Prefix / Scan; Priority Queue | 46.6% | 87.5% | 6m |
| 20 | Valid Parentheses | Easy | Strings | Hashing / Sliding Window | 44.2% | 87.5% | 6m |
| 21 | Merge Two Sorted Lists | Easy | Arrays; Linked List | Sorting / Prefix / Scan; Two Pointers | 68.3% | 87.5% | 6m |
| 271 | Encode and Decode Strings | Medium | Strings; Dynamic Programming; Stack / Queue | Hashing / Sliding Window; State Transition; Monotonic Stack / Simulation | 51.6% | 87.5% | 6m |