View Code of Problem 93

#include<iostream>
#include<string>
#include<math.h>
using namespace std;
int yinsum(int x)
{
	int sum=0;
	for(int i=1;i<x;i++){
		if(x%i==0){
			sum+=i;
		}
	}
	return sum;
}
int main(){
	int m,n;
	while(cin>>m>>n){
		for(int i=m;i<=n;i++){
			int k=yinsum(i);
			if(yinsum(k)==i&&i<k)
			{
				cout<<i<<" "<<k<<endl;
			}
			}
		}
	return 0;
}