C Program to Check perfect number

C Program to Check perfect number

#include < stdio.h >
#include < conio.h > 

void main()
{
 int n,d,tot;
 
 clrscr();
 printf("\n Enter value for n : ");
 scanf("%d",&n);
 tot = 0;
 
 d = 1;
 while ( d<= n/2)
 {
  if ( n % d == 0 )
  {
   tot = tot + d;
  }
  d++;
 } // while
 if ( tot == n )
 {
  printf("\n Yes... %d is perfect",n);
 }
 else
 {
  printf("\n Ohhhh... %d is not perfect",n);
 }
}