In this C-program we will check the Perfect numbers in a given Range and print them on the screen. The lower range and the upper range will be taken from the user.color>

input:

The Lower Range and the Upper Range.

output:

The Perfect numbers will be printed on the screen in the given range.

CODE---->

#include
#include
int perfect(int x)
{
 int i,sum=0;
 if(x==0)
  return 0;
 for(i=1;ix-1);i++)
 {
  if(x%i==0)
   sum=sum+i;
 }
 if(sum==x)
  return 1;
 else
  return 0;
}
int main()
{
 int num,i,lr,ur,check;
 printf("\n Please, Enter the Lower range : ");
 scanf("%d",&lr);
 printf("\n Please, Enter the Higher range : ");
 scanf("%d",&ur);
 printf("\n The Perfect Numbers are : ");
 for(i=lr;iur;i++)
 {
  check=perfect(i);
  if(check==1)
   printf(" %d ",i);
 }
 printf("\n");
}

Don't just read, write it, run it.....

RESULT:color>