| S.No |
Interview Question |
Number of times candidates experienced this question in interviews |
| 1 | Rotate Image LeetCode Solution | 2671 |
| 2 | Smallest Positive Number Missing in an Unsorted Array | 2272 |
| 3 | Sum of minimum and maximum elements of all subarrays of size k | 2146 |
| 4 | Count all subsequences having product less than K | 1938 |
| 5 | Count subarrays with equal number of 1’s and 0’s | 1897 |
| 6 | Printing brackets in Matrix Chain Multiplication Problem | 1747 |
| 7 | Find the smallest positive integer value that cannot be represented as sum of any subset of a given array | 1555 |
| 8 | Trapping Rain Water Leetcode Solution | 1546 |
| 9 | Letter Combinations of a Phone Number | 1408 |
| 10 | Time Based Key-Value Store LeetCode Solution | 1301 |
| 11 | Minimum Increment to Make Array Unique Leetcode Solution | 1121 |
| 12 | Insert Delete GetRandom O(1) Leetcode Solution | 1105 |
| 13 | Decode Ways | 1045 |
| 14 | Count subarrays having total distinct elements same as original array | 1025 |
| 15 | Trapping Rain Water LeetCode Solution | 919 |
| 16 | Merge K Sorted Linked Lists | 825 |
| 17 | Find Three Element From Different Three Arrays Such That a + b + c = sum | 792 |
| 18 | Convert a String that is Repetition of a Substring of Length K | 781 |
| 19 | Sliding Window Maximum | 689 |
| 20 | Design Skiplist LeetCode Solution | 681 |
| 21 | Check whether a given Binary Tree is Complete or not | 658 |
| 22 | Closest Leaf in a Binary Tree LeetCode Solution | 524 |
