solve this in c++ with complete detail and comments.

2. No. 1 > a) Write a main function which can define objects on run time of two different classes, ClassEven and ClassOdd, take input from user, if user inputs an even number the program should define an object of ClassEven and if user inputs an odd number the program should define an object of ClassOdd. (5 Marks) b) Write a function which can determine which object to create when a value is passed to it, it should define an object of class A, B and C, when '1', '2', and '3' is passed respectively Return the address of created object