1. Design and implement a class named "Scientist" using The class should store the name of the scientist, his/her area of research, number of papers published and the institute in which she is working. The class should have the following two member functions:

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

A function that displays all the information of an object.

Write appropriate main( function that creates an array of three "Scientist" objects. The main( function should demonstrate all the functionality of the given class. The data stored in the objects should be meaningful.

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

Bags • Size
• Cost
Paper Bag Cotton Bags
• Colour • Type of cloth
• Thickness

Design and implement the classes in the hierarchy using You may add more data members, if needed. You should include at least one constructor in each class. All classes should have a member function print_bagjnfo( that displays all the data stored in an object of that class. You must demonstrate polymorphism using the print_bag_info( and main( functions.