| S.No |
Interview Question |
Number of times candidates experienced this question in interviews |
| 1 | Check length of a String is Equal to the Number Appended at its Last | 4956 |
| 2 | Print the Fibonacci numbers in reverse order | 3471 |
| 3 | Implementation of Deque using Doubly Linked List | 1951 |
| 4 | Second Most Repeated Word in a Sequence | 1785 |
| 5 | The Celebrity Problem | 1688 |
| 6 | Longest Palindrome can be Formed by Removing or Rearranging Characters | 1566 |
| 7 | Multiplication of Previous and Next | 1526 |
| 8 | Find the smallest positive integer value that cannot be represented as sum of any subset of a given array | 1502 |
| 9 | Check if String can Become Empty by Recursively Deleting given Substring | 1365 |
| 10 | Caesar Cipher | 1244 |
| 11 | Check if Two given Strings are Isomorphic to each other | 1115 |
| 12 | Smallest Element Repeated Exactly K Times | 1079 |
| 13 | Find duplicates in a given array when elements are not limited to a range | 1074 |
| 14 | Size of The Subarray With Maximum Sum | 1016 |
| 15 | Huffman Coding | 1014 |
| 16 | Sorting using trivial hash function | 940 |
| 17 | Construct BST from its given Level Order Traversal | 864 |
| 18 | Depth First Search (DFS) for a Graph | 861 |
| 19 | Breadth First Search (BFS) for a Graph | 805 |
| 20 | Binary Search Tree Search and Insertion | 730 |
| 21 | Largest area rectangular sub-matrix with equal number of 1’s and 0’s | 722 |
| 22 | Next Greater Frequency Element | 671 |
| 23 | K’th Largest Element in BST when modification to BST is not allowed | 664 |
