Write a C function that takes two integers as arguments and

Write a C function that takes two integers as arguments and swaps two values if the second one is larger. The return type of the function should be void.

Solution

main.c

#include <stdio.h>

/* function declaration */
void swap(int num1, int num2);

int main () {

   int x, y;

   printf(\"Enter the value of x and y\ \");
   scanf(\"%d%d\", &x, &y);

   swap(x, y);

   return 0;
}

void swap(int num1, int num2) {
   int temp;
   if(num1<num2)
   {
        printf(\"Before Swapping\ x = %d\ y = %d\ \",num1,num2);
         temp = num1;
   num1    = num2;
   num2    = temp;

    printf(\"After Swapping\ x = %d\ y = %d\ \",num1,num2);
    }
   else{
       printf(\"Before Swapping\ x = %d\ y = %d\ \",num1,num2);
       printf(\"No Swapping is done.\ x = %d\ y = %d\ \",num1,num2);
}

}

Output :