| 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 | 6828 |
| 2 | Print the Fibonacci numbers in reverse order | 6765 |
| 3 | Implementation of Deque using Doubly Linked List | 4037 |
| 4 | Second Most Repeated Word in a Sequence | 3226 |
| 5 | Find the smallest positive integer value that cannot be represented as sum of any subset of a given array | 3207 |
| 6 | The Celebrity Problem | 2614 |
| 7 | Smallest Element Repeated Exactly K Times | 2467 |
| 8 | Multiplication of Previous and Next | 2354 |
| 9 | Longest Palindrome can be Formed by Removing or Rearranging Characters | 2328 |
| 10 | Find duplicates in a given array when elements are not limited to a range | 2252 |
| 11 | Check if String can Become Empty by Recursively Deleting given Substring | 1850 |
| 12 | Check if Two given Strings are Isomorphic to each other | 1836 |
| 13 | Caesar Cipher | 1748 |
| 14 | Huffman Coding | 1596 |
| 15 | Construct BST from its given Level Order Traversal | 1577 |
| 16 | Depth First Search (DFS) for a Graph | 1551 |
| 17 | Sorting using trivial hash function | 1446 |
| 18 | Breadth First Search (BFS) for a Graph | 1349 |
| 19 | Largest area rectangular sub-matrix with equal number of 1’s and 0’s | 1333 |
| 20 | Size of The Subarray With Maximum Sum | 1324 |
| 21 | Binary Search Tree Search and Insertion | 1115 |
| 22 | Next Greater Frequency Element | 1022 |
| 23 | K’th Largest Element in BST when modification to BST is not allowed | 959 |
