PLEASE WRITE THE C++ CODE AS FOLLOWS:

1) Design and program necessary C++ Classes with data members and member functions for above functions.

2) For each Class designed, provide default constructor, copy constructor, and constructor with arguments.

3) A Driver application to test the graph and demonstrate its functions.

4) Apply atleast three of the following techniques (any 3): inheritance; polymorphism; operator overloading; template; exception handling.