| S.No |
Interview Question |
Number of times candidates experienced this question in interviews |
| 1 | Missing Number Leetcode Solution | 2986 |
| 2 | Isomorphic Strings Leetcode Solution | 2979 |
| 3 | String to Integer (atoi) LeetCode Solution | 2576 |
| 4 | A Product Array Puzzle | 2240 |
| 5 | Reverse Integer Leetcode Solution | 1984 |
| 6 | Palindrome Linked List Leetcode Solution | 1794 |
| 7 | Trapping Rain Water Leetcode Solution | 1569 |
| 8 | Product of Array Except Self LeetCode Solution | 1491 |
| 9 | Group Anagrams LeetCode Solution | 1466 |
| 10 | Sort Colors LeetCode Solution | 1413 |
| 11 | Insert Delete GetRandom O(1) Leetcode Solution | 1105 |
| 12 | Convert a normal BST to Balanced BST | 1057 |
| 13 | LRU Cache Leetcode Solution | 1031 |
| 14 | Container With Most Water LeetCode Solution | 978 |
| 15 | Sliding Window Maximum LeetCode Solution | 814 |
| 16 | Isomorphic Strings | 793 |
| 17 | Valid Parentheses Leetcode Solution | 778 |
| 18 | Contains Duplicate LeetCode Solution | 743 |
| 19 | Check given array of size n can represent BST of n levels or not | 522 |
