#include <stdio.h>
#include <stdlib.h>
// no parameters input
int find_GCD();
int main()
{
int GCD;
GCD = find_GCD();
printf("GCD = %d\n", GCD);
system("pause");
return 0;
}
int find_GCD()
{
int v1, v2, temp;
printf("enter the integer v1: ");
scanf("%d", &v1);
printf("enter the integer v2: ");
scanf("%d", &v2);
while (v2 != 0){
temp = v1 % v2;
v1 = v2;
v2 = temp;
}
return v1;
}