编辑代码

#include <iostream>
using namespace std;
int loop2(int length, int width)
{
    int smallWidth=0;
    while(length % width != 0)
    {
        smallWidth=length % width;
        length = width;
        width = smallWidth;
    }
    return smallWidth;
}
int main() 
{

    int length;
    int width;
    cout<<"输入长";
    cin>>length;
    cout<<"输入高";
    cin>>width;
	cout << "the width of square is " << loop2(length, width) << endl;
	return 0;
}