Lập Trình C/C++ - Perfect Number

#Code:

#include<iostream>
using namespace std;

int main()
{
 int no, i = 1, sum = 0;
 
 /* 'endl' insert linefeed like '\n' */
 cout << "Check the given number is Perfect Number or not" << endl;
 cout << "Enter a number:" << endl;
 cin >> no;

 /* Loop the process using "while loop" */
 while(i < no)
 {
  if(no % i == 0)
   sum += i;
  i++;
 }

 if(sum == no)
  cout << no << " is a Perfect Number!" << endl;
 else
  cout << no << " is not a Perfect Number!" << endl;

 return 0;
}

Posted in: C