#include <stdio.h>
int main()
{
int a,b;
printf("enter two numbers:");
scanf("%d,%d",&a,&b);
while(a!=b)
{
if(a>b) a=a-b;
else b=b-a;
}
printf("%d",a);
return 0;
}
#include <stdio.h>
int main()
{
int a,b;
printf("enter two numbers:");
scanf("%d,%d",&a,&b);
while(a*b!=0)
{
if(a>b){ a=a%b};
else if{ b=b%a};
else
{return x;
}
}
return x==0?y:x;
printf("%d",a);
return 0;
}