Number Perfect or Not

Wap to check a number whether it is a perfect number or not

#include<iostream.h>

#include<conio.h>

void main()

{

clrscr();

int n,sum=0,i=1;

cout<<"enter no.";

cin>>n;

while(i<n)

{

if(n%i==0)

sum+=i;

i++;

}

if(sum==n)

cout<<"perfect";

else

cout<<"not perfect";

getch();

}

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OUTPUT

enter no. 4

perfect

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