HackerRank c++ - Virtual Functions

특별히 어려운 것 없이 통과,

class Person{
private :
    string _name;
    int _age;
public :
    string getName(){return _name;}
    int getAge(){return _age;}
    void setName(string name){_name = name;}
    void setAge(int age) { _age = age;}
    virtual void getdata(){};
    virtual void putdata(){};
};
static int professor_cur_id = 1;
class Professor : public Person
{
private :
    int publications;
    int cur_id;
    
public :
    Professor(){
        cur_id = professor_cur_id;
        professor_cur_id++;        
    }
    void getdata(){
        string nameBuf;
        int ageBuf;
        cin >> nameBuf >> ageBuf >> publications;
        setName(nameBuf);
        setAge(ageBuf);
    };
    void putdata(){
        cout << getName() << " " << getAge() << " " << publications << " " << cur_id << endl;
    };    
};
static int student_cur_id = 1;
class Student : public Person
{
private:
    int marks[6] = {0,} ;
    int cur_id;
public:
    Student(){
        cur_id = student_cur_id;
        student_cur_id++; 
    }
    void getdata(){
        string nameBuf;
        int ageBuf;
        cin >> nameBuf >> ageBuf;
        for(int i = 0 ; i < 6; i++)
        {
            cin >> marks[i];
        }
        setName(nameBuf);
        setAge(ageBuf);
    }
    void putdata(){
        int sum = 0;
        for(int element : marks)
        {
            sum += element;
        }
        
        cout << getName() << " " << getAge() << " " << sum << " " << cur_id << endl;
    }
};