| S.No |
Interview Question |
Number of times candidates experienced this question in interviews |
| 1 | Single Number Leetcode Solution | 5031 |
| 2 | Longest Common Prefix Leetcode Solution | 3223 |
| 3 | Number of Islands LeetCode Solution | 2995 |
| 4 | Permutations Leetcode Solution | 2776 |
| 5 | Longest Substring Without Repeating Characters LeetCode Solution | 2725 |
| 6 | String to Integer (atoi) LeetCode Solution | 2549 |
| 7 | Quick Sort | 2317 |
| 8 | A Product Array Puzzle | 2223 |
| 9 | Binary Search LeetCode Solution | 2112 |
| 10 | Fibonacci Number LeetCode Solution | 2004 |
| 11 | Minimum Characters to be Added at Front to Make String Palindrome | 1779 |
| 12 | Decode String Leetcode Solution | 1516 |
| 13 | Product of Array Except Self LeetCode Solution | 1478 |
| 14 | Reverse a linked list | 1352 |
| 15 | Minimum Absolute Difference Leetcode Solution | 1279 |
| 16 | Binary Tree Zigzag Level Order Traversal LeetCode Solution | 1242 |
| 17 | Design a stack that supports getMin() in O(1) time and O(1) extra space | 1157 |
| 18 | Find the Smallest Divisor given a Threshold Leetcode Solution | 1146 |
| 19 | Find Median from Data Stream LeetCode Solution | 1066 |
| 20 | Container With Most Water LeetCode Solution | 960 |
| 21 | Heap Sort | 866 |
| 22 | GCD Of Two Numbers | 857 |
| 23 | Rotate Array | 737 |
