| S.No |
Interview Question |
Number of times candidates experienced this question in interviews |
| 1 | Number of Islands LeetCode Solution | 2952 |
| 2 | Text Justification LeetCode Solution | 2401 |
| 3 | Subarray with 0 sum | 1711 |
| 4 | Merge k Sorted Lists Leetcode Solution | 1550 |
| 5 | Find any one of the multiple repeating elements in read only array | 1449 |
| 6 | Minimum operation to make all elements equal in array | 1375 |
| 7 | Longest Common Subsequence LeetCode Solution | 1373 |
| 8 | Top K Frequent Elements LeetCode Solution | 1321 |
| 9 | Minimum Moves to Equal Array Elements Leetcode Solution | 1271 |
| 10 | Minimum Knight Moves LeetCode Solution | 1205 |
| 11 | Maximum Length of Repeated Subarray | 1178 |
| 12 | Merge Sorted Array LeetCode Solution | 1163 |
| 13 | Shuffle 2n integers as a1-b1-a2-b2-a3-b3-..bn without using extra space | 1106 |
| 14 | Insert Delete GetRandom O(1) Leetcode Solution | 1080 |
| 15 | Find Median from Data Stream LeetCode Solution | 1062 |
| 16 | Longest Span with same Sum in two Binary Arrays II | 1021 |
| 17 | Print all subarrays with 0 sum | 939 |
| 18 | Golomb sequence | 900 |
| 19 | Check if the given array can represent Level Order Traversal of Binary Search Tree | 781 |
| 20 | Count pairs from two linked lists whose sum is equal to a given value | 747 |
| 21 | Largest area rectangular sub-matrix with equal number of 1’s and 0’s | 730 |
| 22 | Range LCM Queries | 729 |
| 23 | Find pairs with given sum such that elements of pair are in different rows | 677 |
| 24 | Minimum insertions to form a palindrome with permutations allowed | 638 |
| 25 | Sum of Even Numbers After Queries | 621 |
| 26 | Find number of pairs in an array such that their XOR is 0 | 618 |
| 27 | Queries on XOR of greatest odd divisor of the range | 610 |
| 28 | Print modified array after multiple array range increment operations | 596 |
| 29 | Longest Span with same Sum in two Binary arrays | 586 |
| 30 | Number of indexes with equal elements in given range | 540 |
