求最大公约数的伪代码

 

If y is equal to 0, then gcd(x, y) is x; otherwise,gcd(x,y) is gcd(y,x % y), where % is the modulus operator.

代码：

 

#include 

using namespace std;
int gcd(int x, int y)
{
    if(y == 0)
        return x;
    else
        return gcd(y,x%y);
}
int main()
{
    cout << gcd(8,4) << endl;
    return 0;
}