Fractions Again?!

这题就是直接暴搜，代码如下

#include <bits/stdc++.h>
using namespace std;
int main(){
	int n;
	while(cin>>n){
		int a[10010],b[10010];
		int i=0,j,x,y;
		for(y=n+1;y<=2*n;y++){
			if((y*n)%(y-n)==0){
				x=(n*y)/(y-n);
				a[i]=x;
				b[i++]=y;
			}
		}
		cout<<i<<endl;
		for(j=0;j<i;j++)
			cout<<"1/"<<n<<" = "<<"1/"<<a[j]<<" + "<<"1/"<<b[j]<<endl;
	}
	return 0;
}