C programming Interview Questions : Given below collection of frequently asked C programming interview questions. These are the collections of various C programming topics such as data type, operators, loops, arrays, functions, pointers, structure, enumeration, bit fields, macros, inline function, file and many more with source code..

Q1. Find the factorial of a given number using recursion

Q2. Write a C program to calculate power of a number (x,y).

Q3. Write a C program to check given number is palindrome or not ?

Q4. Write a program to print numbers from 1 to 100 without using loops.

Q5. Find the size of structure without using sizeof() operator.

Q6. Write a C program to convert a decimal number into a binary number system.

Q7. How to find in one line whether a given number is power of 2 or not?

Q8. How to add two numbers without using plus operator?

Q9. Write a C program to swap two variables without using any temporary variable.

Q10. How to fast multiply a number by 4?