
------------------------
Cod:
#include <fstream>
using namespace std;
ifstream f("cmmdc.in");
ofstream g("cmmdc.out");
int main()
{
int a,b,i;
f>>a>>b;
f.close();
if(a>b)
{
i=a;a=b;b=i;
}
for(i=a;i>=2;i--)
if(b%i==0 && a%i==0)
{
g<<i<<endl;
return 1;
}
g<<0;
g.close();
return 0;
}