| S.No |
Interview Question |
Number of times candidates experienced this question in interviews |
| 1 | Single Number Leetcode Solution | 10736 |
| 2 | Permutations Leetcode Solution | 6184 |
| 3 | Longest Common Prefix Leetcode Solution | 6127 |
| 4 | Longest Substring Without Repeating Characters LeetCode Solution | 5896 |
| 5 | Number of Islands LeetCode Solution | 5810 |
| 6 | String to Integer (atoi) LeetCode Solution | 5118 |
| 7 | Product of Array Except Self LeetCode Solution | 4161 |
| 8 | Fibonacci Number LeetCode Solution | 4126 |
| 9 | A Product Array Puzzle | 4076 |
| 10 | Binary Search LeetCode Solution | 4036 |
| 11 | Decode String Leetcode Solution | 3916 |
| 12 | Minimum Characters to be Added at Front to Make String Palindrome | 2911 |
| 13 | Quick Sort | 2661 |
| 14 | Minimum Absolute Difference Leetcode Solution | 2640 |
| 15 | Binary Tree Zigzag Level Order Traversal LeetCode Solution | 2412 |
| 16 | Container With Most Water LeetCode Solution | 2306 |
| 17 | Find the Smallest Divisor given a Threshold Leetcode Solution | 2263 |
| 18 | Design a stack that supports getMin() in O(1) time and O(1) extra space | 2209 |
| 19 | Reverse a linked list | 2134 |
| 20 | Find Median from Data Stream LeetCode Solution | 2032 |
| 21 | Heap Sort | 1424 |
| 22 | GCD Of Two Numbers | 1397 |
| 23 | Rotate Array | 1303 |
