| S.No |
Interview Question |
Number of times candidates experienced this question in interviews |
| 1 | 3Sum Leetcode Solution | 6077 |
| 2 | Longest Palindromic Substring LeetCode Solution | 3260 |
| 3 | 3Sum Closest LeetCode Solution | 2939 |
| 4 | Search in Rotated Sorted Array Leetcode Solution | 2830 |
| 5 | Maximum Number of Balloons Leetcode Solution | 2517 |
| 6 | Largest Number Leetcode Solution | 2346 |
| 7 | Find Triplet in Array With a Given Sum | 2321 |
| 8 | Smallest Positive Number Missing in an Unsorted Array | 2272 |
| 9 | Valid Anagram Leetcode Solution | 1980 |
| 10 | Count subarrays with equal number of 1’s and 0’s | 1897 |
| 11 | Count of Triplets With Sum Less than Given Value | 1767 |
| 12 | Self Dividing Numbers | 1725 |
| 13 | Subarray Sum Equals K LeetCode Solution | 1624 |
| 14 | Trapping Rain Water Leetcode Solution | 1548 |
| 15 | Cuckoo sequence program | 1481 |
| 16 | Minimum Path Sum Leetcode Solution | 1457 |
| 17 | Move All the Zeros to the End of the Given Array | 1426 |
| 18 | Sort Colors LeetCode Solution | 1412 |
| 19 | Top K Frequent Elements LeetCode Solution | 1378 |
| 20 | Generate Parentheses Leetcode Solution | 1334 |
| 21 | Difference between highest and least frequencies in an array | 1322 |
| 22 | LRU Cache Implementation | 1252 |
| 23 | Insert Delete GetRandom O(1) Leetcode Solution | 1105 |
| 24 | Maximum Length of a Concatenated String with Unique Characters Leetcode Solution | 1091 |
| 25 | LRU Cache Leetcode Solution | 1031 |
| 26 | Count items common to both the lists but with different prices | 1002 |
| 27 | Container With Most Water LeetCode Solution | 977 |
| 28 | Trapping Rain Water LeetCode Solution | 919 |
| 29 | Rearrange array such that even index elements are smaller and odd index elements are greater | 900 |
| 30 | Find whether a subarray is in form of a mountain or not | 888 |
