This is an application for managing docs of the library. In this program i use inheritence and polymorphism . we can receive, extend and handing over the refrences, books and refrences and we have profeesors and students in the list of members . if you want to use this app, you should change my main file and put your own main.cpp
commands : add_student_member add_prof_member add_book add_magazine add_refrence borrow extend return_document get_total_penalty available_titles time_pass
You can see the complete description from here: Description.pdf