| S.No |
Interview Question |
Number of times candidates experienced this question in interviews |
| 1 | 3Sum Leetcode Solution | 6077 |
| 2 | Valid Parentheses LeetCode Solution | 6033 |
| 3 | Plus One Leetcode Solution | 5869 |
| 4 | First Repeating Element | 5220 |
| 5 | Single Number Leetcode Solution | 5089 |
| 6 | Search Insert Position Leetcode Solution | 4537 |
| 7 | Find the Maximum Repeating Number in Array | 4421 |
| 8 | Pow(x, n) Leetcode Solution | 4291 |
| 9 | Roman to Integer Leetcode Solution | 3976 |
| 10 | Running Sum of 1d Array Leetcode Solution | 3972 |
| 11 | Merge Sorted Arrays Leetcode Solution | 3882 |
| 12 | Find All Numbers Disappeared in an Array Leetcode Solution | 3621 |
| 13 | Concatenation of Array LeetCode Solution | 3610 |
| 14 | Spiral Matrix LeetCode Solution | 3399 |
| 15 | Matrix Diagonal Sum Leetcode Solution | 3391 |
| 16 | Sort Integers by The Number of 1 Bit Leetcode Solution | 3356 |
| 17 | Number Of 1 bits | 3309 |
| 18 | Longest Palindromic Substring LeetCode Solution | 3260 |
| 19 | Reverse String Without Temporary Variable | 3257 |
| 20 | Longest Common Prefix Leetcode Solution | 3246 |
| 21 | Maximum Subarray Leetcode Solution | 3157 |
| 22 | Jewels and Stones Leetcode Solution | 3156 |
| 23 | Jump Game Leetcode Solution | 3091 |
| 24 | Sum of numbers in String | 3031 |
| 25 | Number of Islands LeetCode Solution | 3025 |
| 26 | Missing Number Leetcode Solution | 2979 |
| 27 | Isomorphic Strings Leetcode Solution | 2974 |
| 28 | 3Sum Closest LeetCode Solution | 2938 |
| 29 | Combination Sum Leetcode Solution | 2900 |
| 30 | Smallest window in a string containing all characters of another string | 2861 |
