View Code of Problem 93

#include<stdio.h>
#include<math.h>
int yinzi(int n)
{
	int i,sum=0;
	for(i=1;i<=n/2;i++)
	{
		if(n%i==0)
		  sum+=i;
	}
	return sum;
}
int main()
{
	int m,n,k;
	scanf("%d %d",&m,&n);
	int i,j;
	for(i=m;i<n;i++)
	{
	   if(yinzi(i)>=m&&yinzi(i)<=n)
	   {
	   	  k=yinzi(i);
	   	  if(yinzi(k)==i&&i<k)
	   	    printf("%d %d\n",i,yinzi(i));
	   }
	}
}