| S.No |
Interview Question |
Number of times candidates experienced this question in interviews |
| 1 | 3Sum Leetcode Solution | 6015 |
| 2 | Valid Parentheses LeetCode Solution | 5967 |
| 3 | Plus One Leetcode Solution | 5793 |
| 4 | First Repeating Element | 5185 |
| 5 | Single Number Leetcode Solution | 5030 |
| 6 | Find the Maximum Repeating Number in Array | 4387 |
| 7 | Pow(x, n) Leetcode Solution | 4235 |
| 8 | Contains Duplicate II Leetcode Solution | 4190 |
| 9 | Intersection of Two Arrays II Leetcode Solution | 4099 |
| 10 | Roman to Integer Leetcode Solution | 3933 |
| 11 | Kth Missing Positive Number Leetcode Solution | 3850 |
| 12 | Merge Sorted Arrays Leetcode Solution | 3835 |
| 13 | Reverse Vowels of a String Leetcode Solution | 3677 |
| 14 | Valid Palindrome Leetcode Solution | 3650 |
| 15 | Shuffle String Leetcode Solution | 3637 |
| 16 | Add Binary Leetcode Solution | 3407 |
| 17 | Spiral Matrix LeetCode Solution | 3354 |
| 18 | Word Search Leetcode Solution | 3338 |
| 19 | Meeting Rooms II LeetCode Solution | 3333 |
| 20 | Number Of 1 bits | 3287 |
| 21 | Longest Palindromic Substring LeetCode Solution | 3227 |
| 22 | Longest Common Prefix Leetcode Solution | 3223 |
| 23 | Subarray and Subsequence | 3196 |
| 24 | Maximum Subarray Leetcode Solution | 3123 |
| 25 | Jewels and Stones Leetcode Solution | 3119 |
| 26 | Jump Game Leetcode Solution | 3058 |
| 27 | Number of Islands LeetCode Solution | 2995 |
| 28 | Third Maximum Number Leetcode Solution | 2991 |
| 29 | Missing Number Leetcode Solution | 2951 |
| 30 | Isomorphic Strings Leetcode Solution | 2940 |
