1. Design and implement a class "Athlete" using having the following features:

• The class should store the name, event, country and age of an athlete.

• The class should have the following member functions:

A member function to input values to data members of an object.

A member function that displays data stored in data members of an object.

A member function that changes the age of an object.

Write appropriate main( function that creates an array of three "Athlete" objects and demonstrates all the member functions. You must store meaningful values in the objects.

2. Consider the following class hierarchy along with suggested data members:

Sportsperson • Name
• Address
Individual Sport Group Sport
• Event Name • Event Name
• Number of Practice Hours • Number of sportspersons needed for the event

Design and implement the classes in the hierarchy using You may add more data members in the classes. You should include at least one constructor in each class. All the classes should have a member function print_info( which should display all the data of that object. You must demonstrate polymorphism using the print_info( and main( functions.