15 Most commonly asked DSA problems in coding interviews:
1. Two Sum with all Approaches
2. Buy and Sell Stock Sell
3. Target Sum
4. LRU Cache
5. Merge Intervals
6.Detect Cycle
7. Maximum Subarray
8. Number of Islands
9. Path with Minimum Effort
10. Trapping Rain Water
11. Binary Tree Level Order Traversal
12. Search in Rotated Sorted Array
13. Merge k Sorted Lists
14. Longest Substring Without Repeating Characters
15.Rotate Image
