Design a C++ sale program by yourself, you can create any function you want it to have, and please give me a brief summary about what this sale program would preform and how your code works. The following are some specifications you have to meet:

1.demonstrate effective object oriented programming design and implementation ( classes, objects, functions, etc)

2.demonstrate effective use of at least TWO of the data structures ( queues, lists, vectors, etc)

3.demonstrate effective use of either inheritance or polymorphism