This is my code
#include <cmath>
#include <cstdio>
#include <vector>
#include <iostream>
#include <algorithm>
 using namespace std;
 int professorCounter = 0;
 int studentCounter = 0;
class Person{
public:
    string name;
    int age;
};
class Professor : public Person{
 public:
    int publications;
    int cur_id;
    Professor(){
        professorCounter++;
        this->cur_id = professorCounter;
    }
    void getdata(){
        cin >> this->name >> this->age >> this->publications;
    }
    void putdata(){
        cout << this->name << " " << this->age << " " << this->publications                 << 
     endl;
     }
 };
 class Student : public Person{
public:
    int marks[6];
    int cur_id;
    Student(){
        studentCounter++;
        this->cur_id = studentCounter;
    }
    void getdata(){
        cin >> this->name >> this->age;
        for(int i=0; i<6; i++){
            cin >> this->marks[i];
        }
    }
    void putdata(){
        cout << this->name << " " << this->age;
        for(int i=0; i<6; i++){
            cout << " " << this->marks[i];
        }
    }
  };
 int main(){
int n, val;
cin>>n; //The number of objects that is going to be created.
Person *per[n];
for(int i = 0;i < n;i++){
    cin>>val;
    if(val == 1){
        // If val is 1 current object is of type Professor
        per[i] = new Professor;
    }
    else per[i] = new Student; // Else the current object is of type Student
    per[i]->getdata(); // Get the data from the user.
}
for(int i=0;i<n;i++)
    per[i]->putdata(); // Print the required output for each object.
return 0;
}
I have a pointer array of type Parent Class(Person) and each of it's pointer is pointing to the child class (Professor, Student) I want to access the child (i.e. student and Professor) using the pointer of Parent which is pointing to the child
i am this to setData
  per[i]->getdata(); // Get the data from the user.
and this to print data
  per[i]->putdata(); // Print the required output for each object.
But it shows error saying " ‘class Person’ has no member named ‘getdata’ " and " ‘class Person’ has no member named ‘putdata’ "
Hacker Rank question link : https://www.hackerrank.com/challenges/virtual-functions/problem?h_r=next-challenge&h_v=zen&isFullScreen=true
