P1029 60pts求助 悬赏1-2关注

#include<iostream>
using namespace std;
int gcd(int a,int b)
{
	while(b!=0)
	{
		int r=a%b;
		a=b;
		b=r;
	}
	return a;
}
int main()
{
	int x0,y0,ans=0;
	cin>>x0>>y0;
	for(int p=x0;p<=y0;p++)
	{
		for(int q=x0;q<=y0;q++)
		{
			int g=gcd(p,q);
			int b=p*q/g;
			if(g==x0&&b==y0) ans++;
		}
	}
	cout<<ans;
}