| S.No |
Interview Question |
Number of times candidates experienced this question in interviews |
| 1 | First Repeating Element | 10123 |
| 2 | Find the Maximum Repeating Number in Array | 6868 |
| 3 | Asteroid Collision LeetCode Solution | 3690 |
| 4 | Product of Array Except Self LeetCode Solution | 3546 |
| 5 | A Product Array Puzzle | 3418 |
| 6 | Best Time to Buy and Sell Stock LeetCode Solution | 3272 |
| 7 | Coin Change 2 Leetcode Solution | 3114 |
| 8 | Find Triplet in Array With a Given Sum | 2933 |
| 9 | Trapping Rain Water Leetcode Solution | 2917 |
| 10 | Group Anagrams LeetCode Solution | 2827 |
| 11 | Word Ladder LeetCode Solution | 2772 |
| 12 | Printing brackets in Matrix Chain Multiplication Problem | 2682 |
| 13 | Maximum Product of Three Numbers LeetCode Solution | 2617 |
| 14 | Time Based Key-Value Store LeetCode Solution | 2546 |
| 15 | Insert Delete GetRandom O(1) Leetcode Solution | 2438 |
| 16 | Length of Longest valid Substring | 2339 |
| 17 | Count of index pairs with equal elements in an array | 2324 |
| 18 | Count of Triplets With Sum Less than Given Value | 2315 |
| 19 | Three way partitioning of an array around a given range | 2190 |
| 20 | Pairs of Songs With Total Durations Divisible by 60 LeetCode Solution | 2164 |
| 21 | Minimum operation to make all elements equal in array | 2090 |
| 22 | Longest subarray not having more than K distinct elements | 2002 |
| 23 | Difference between highest and least frequencies in an array | 2002 |
| 24 | Construct Binary Tree from Given Inorder and Preorder Traversals | 1975 |
| 25 | LRU Cache Leetcode Solution | 1949 |
| 26 | LRU Cache Implementation | 1933 |
| 27 | Check if a given array contains duplicate elements within k distance from each other | 1901 |
| 28 | Ugly Number II LeetCode Solution | 1860 |
| 29 | Kth Smallest Element in a BST Leetcode Solution | 1818 |
| 30 | Find Median from Data Stream LeetCode Solution | 1754 |
