| S.No |
Interview Question |
Number of times candidates experienced this question in interviews |
| 1 | 3Sum Leetcode Solution | 10299 |
| 2 | Longest Palindromic Substring LeetCode Solution | 5639 |
| 3 | 3Sum Closest LeetCode Solution | 4967 |
| 4 | Search in Rotated Sorted Array Leetcode Solution | 4903 |
| 5 | Largest Number Leetcode Solution | 4331 |
| 6 | Valid Anagram Leetcode Solution | 4196 |
| 7 | Maximum Number of Balloons Leetcode Solution | 4006 |
| 8 | Count subarrays with equal number of 1’s and 0’s | 3956 |
| 9 | Sort Colors LeetCode Solution | 3679 |
| 10 | Trapping Rain Water Leetcode Solution | 2952 |
| 11 | Find Triplet in Array With a Given Sum | 2947 |
| 12 | Smallest Positive Number Missing in an Unsorted Array | 2893 |
| 13 | Generate Parentheses Leetcode Solution | 2711 |
| 14 | Self Dividing Numbers | 2607 |
| 15 | Subarray Sum Equals K LeetCode Solution | 2602 |
| 16 | Top K Frequent Elements LeetCode Solution | 2558 |
| 17 | Cuckoo sequence program | 2557 |
| 18 | Insert Delete GetRandom O(1) Leetcode Solution | 2464 |
| 19 | Minimum Path Sum Leetcode Solution | 2421 |
| 20 | Count of Triplets With Sum Less than Given Value | 2325 |
| 21 | Move All the Zeros to the End of the Given Array | 2019 |
| 22 | Difference between highest and least frequencies in an array | 2012 |
| 23 | LRU Cache Leetcode Solution | 1971 |
| 24 | LRU Cache Implementation | 1957 |
| 25 | Maximum Length of a Concatenated String with Unique Characters Leetcode Solution | 1953 |
| 26 | Container With Most Water LeetCode Solution | 1905 |
| 27 | Trapping Rain Water LeetCode Solution | 1561 |
| 28 | Rearrange array such that even index elements are smaller and odd index elements are greater | 1532 |
| 29 | Spiral Matrix III LeetCode Solution | 1503 |
| 30 | 3 Sum | 1467 |
