#include<iostream>
#include<cstring>
using namespace std;

class Student{
   int age;
   char *name;

   public:
       Student(int age, char *name){
          this->age = age;

          /// this->name = name;   shallow copy
          // Deep copy
          this->name = new char[strlen(name) + 1];
          strcpy(this->name,name);
        }
       void display(){
          cout<<name<<" "<<age<<endl;
       }
};

int main(){
    char name[] = "abcd";
   Student s1(20,name);
   s1.display();

   name[3] = 'e';
   Student s2(30,name);
   s2.display();

   s1.display();
  return 0;
}