#include <iostream>

using namespace std;

class Author{
    string mail, name; char gender;
public:
        void getDetails(){
        cout<< "Author name: ";
        cin>>name;
        cout<< "Author email: ";
        cin>>mail;
        cout<< "Author gender: ";
        cin>>gender;
    }
};
class Book{
    string bookName, isbn; float price; Author *authors;
public:
        void getDetails(){
        int n;
        cout<< "Text book name: ";
        cin>>bookName;
        cout<< "How many authors: ";
        cin>>n;
        for(int i=0; i<n; i++){
            authors[i].getDetails();
        }
        cout<< "Price(BDT): ";
        cin>>price;
        cout<< "ISBN no";
        cin>>isbn;
    }
};
class Course{
    string courseId, courseTitle; int noOfCredits; Book textbook;
public:
        void getDetails(){
        cout<< "Enter course ID: ";
        cin>>courseId;
        cout<< "Enter course title: ";
        cin>>courseTitle;
        cout<< "Enter no of credits: ";
        cin>>noOfCredits;
        cout<< "Enter textbook detail...";
        textbook.getDetails();
    }
    //friend int operator+=(int , Course );
};
/*int operator+=(int &n, Course c){
    n+=c.noOfCredits;
    return n;
}*/
int main()
{
    Course *courseArr; int n, i;
    cout<<"How many courses? "; cin>>n;
    allocateAndPopulateCourses(courseArr, n);
    for(i=0;i<n;i++)cout<<courseArr[i]<<endl;
    //int totalCredits = 0;
    //for(i=0;i<n;i++) totalCredits += courseArr[i];
    //cout<<"Total no of credits of these courses is: "<<totalCredits<<endl;
    return 0;
}