C Program to Find the Biggest of 3 Numbers

This C Program calculates the biggest of 3 numbers.The program assumes 3 numbers as a, b, c. First it compares any 2 numbers check which is bigger. After that it compares the biggest element with the remaining number. Now the number which is greater becomes your biggest of 3 numbers. Here is source code of the C program to calculate the biggest of 3 numbers. The C program is successfully compiled and run on a Linux system. The program output is also shown below.

1. /*

2.  * C program to find the biggest of three numbers

3.  */

4. #include <stdio.h>

6. void main()

7. {

8.     int num1, num2, num3;

10.     printf("Enter the values of num1, num2 and num3\n");

11.     scanf("%d %d %d", &num1, &num2, &num3);

12.     printf("num1 = %d\tnum2 = %d\tnum3 = %d\n", num1, num2, num3);

13.     if (num1 > num2)

14.     {

15.         if (num1 > num3)

16.         {

17.             printf("num1 is the greatest among three \n");

18.         }

19.         else

20.         {

21.             printf("num3 is the greatest among three \n");

22.         }

23.     }

24.     else if (num2 > num3)

25.         printf("num2 is the greatest among three \n");

26.     else

27.         printf("num3 is the greatest among three \n");

28. }

$ cc pgm6.c
$ a.out
Enter the values of num1, num2 and num3
6 8 10
num1 = 6  num2 = 8  num3 = 10
num3 is the greatest among three