Write a program that implements the concept of inheritance F
     Write a program that implements the concept of inheritance.  For example: in the following scenario. Air university is inherited by both student and instructor class.  In main () you will enter the information from each person who want to get admission/join Air University.  If he is a student then will save all his information (e.g. gpa, enroll course, any paid fees) and so for instructor.  Second step is to display all the information accordingly if user chooses a choice to show all students/teacher information.   
  
  Solution
In the below code the concept of inheritance is implemented just write a main class as you desired.
 class AirUniversity
 {
 public:
 int id();
 };
 class Student : public AirUniversity
 {
 public:
 double gpa();
 bool enroll(Course&);
bool pay(double dollars);
 };
 class Instructor : public AirUniversity
 {
 public: double grade(Artifact&);
 bool teach(Course&);
bool getPaid(double dollars);
 };

