| S.No |
Interview Question |
Number of times candidates experienced this question in interviews |
| 1 | Palindrome using Recursion | 7118 |
| 2 | Move all negative elements to one side of array | 4931 |
| 3 | Print the Fibonacci numbers in reverse order | 3535 |
| 4 | Sum of numbers in String | 3010 |
| 5 | Reverse a Number Using Stack | 2247 |
| 6 | Rabin Karp Algorithm | 2211 |
| 7 | OSI Model | 2056 |
| 8 | Find the First and Second Smallest Elements | 1922 |
| 9 | Palindrome Number | 1893 |
| 10 | KMP Algorithm | 1843 |
| 11 | Total Numbers With no Repeated Digits in a Range | 1759 |
| 12 | Most Frequent Element in an Array | 1611 |
| 13 | Find all Common Elements in Given Three Sorted Arrays | 1584 |
| 14 | Implement a stack using single queue | 1530 |
| 15 | Iterative Tower of Hanoi | 1466 |
| 16 | Reverse words in a string | 1457 |
| 17 | Implement Stack and Queue using Deque | 1381 |
| 18 | Delete a Node from linked list without head pointer | 1323 |
| 19 | Convert String To Int | 1305 |
| 20 | Insertion Sort | 1293 |
| 21 | Fibonacci numbers | 1286 |
| 22 | Subtraction of Two Matrices | 1261 |
| 23 | Priority Queue using doubly linked list | 1251 |
| 24 | N queen problem | 1247 |
| 25 | Sorting a Queue without Extra Space | 1226 |
| 26 | Mobile Numeric Keypad Problem | 1202 |
| 27 | Recursion | 1200 |
| 28 | Program to Toggle all Characters in a String | 1174 |
| 29 | Sort 0s 1s and 2s in an Array | 1139 |
| 30 | The Stock Span Problem | 1132 |
