#include
void swap(int *i, int *j);
int main(void)
{
int num1, num2;
num1 = 100;
num2 = 800;
printf("num1 = %d num2 = %d\n", num1, num2);
swap(&num1, &num2);
printf("num1 = %d num2 = %d\n", num1, num2);
return 0;
}
/* Exchange the values by pointers. */
void swap(int *i, int *j)
{
int temp;
temp = *i;
*i = *j;
*j = temp;
}