Frequently Asked C Programs
Here You Can get Frequently asked C programs in the interview. These programs can be asked from Basic C language, array, string, pointer, linked list, file handling etc. Let us Learn the list of c programs.
1) Fibonacci Series
Write a program in C Language to print fibonacci series without using recursion and using recursion.
Input: 10
Output: 0 1 1 2 3 5 8 13 21 34
2) Prime number
Write a program in C Language to check prime number.
Input: 44
Output: not prime number
Input: 7
Output: prime number
3) Palindrome number
Write a Program in c Language to check palindrome number.
Input: 329
Output: not palindrome number
Input: 12321
Output: palindrome number
4) Factorial
Write a Program in C language to print factorial of a number.
Input: 5
Output: 120
Input: 6
Output: 720
5) Armstrong number
Write a program in C language to check armstrong number.
Input: 153
Output: armstrong
Input: 22
Output: not armstrong
6) Sum of Digits
Write a program in C language to print sum of digits.
Input: 234
Output: 9
Input: 12345
Output: 15
7) Reverse Number
Write a program in C language to reverse given number.
Input: 123
Output: 321
8) Swap two numbers without using third variable
Write a program to swap two numbers without using third variable.
Input: a=10 b=20
Output: a=20 b=10
9) Print "hello" without using semicolon
Write a program in C language to print "hello" without using semicolon
10) Assembly Program in C
Write a program in C language to add two numbers using assembly code.
11) C Program without main() function
Write a program in C to print "Hello" without using main() function.
12) Matrix Multiplication
Write a program In C language to print multiplication of 2 matrices.
Input:
first matrix elements: 1 1 1 2 2 2 3 3 3 second matrix elements 1 1 1 2 2 2 3 3 3
Output:
multiplication of the matrix: 6 6 6 12 12 12 18 18 18
13) Decimal to Binary
Write a program in C language to convert decimal number to binary.
Input: 5
Output: 101
Input: 20
Output: 10100
14) Alphabet Triangle
Write a program in C language to print alphabet triangle.
Output:
A
ABA
ABCBA
ABCDCBA
ABCDEDCBA
15) Number Triangle
Write a program in C language to print number triangle.
Input: 7
Output:
enter the range= 6
1
121
12321
1234321
123454321
12345654321
16) Fibonacci Triangle
Write a program in C language to generate fibonacci triangle.
Input: 5
Output:
1 1 1 1 1 2 1 1 2 3 1 1 2 3 5
17) Number in Characters
Write a program in C language to convert number in characters.
Input: 5
Output: five
Input: 203
Output: two zero three
