#include<iostream>
#include "student.cpp"
using namespace std;

int main() {
    Student s1(10,100);
    Student s2(20,200);
    Student *s3 = new Student(30,300);

    s2 = s1; /// copy assignment operator
    *s3 = s1;
    s2 = *s3;

  delete s3;
   return 0;
}