Calculate the sum of squares

The code in main() calculates the sum of the squares of integers from n to m.

Library: skaf

#include <iostream>
using namespace std;

int main() {
  int n, m;
  int sum = 0;

  cout << "Enter the value of n: ";
  cin >> n;

  cout << "Enter the value of m: ";
  cin >> m;

  for (int i = n; i <= m; i++) {
    sum += i * i;
  }

  cout << "The sum of the squares from " << n << " to " << m << " is " << sum << endl;

  return 0;
}