Implement a class that represents a phone number in std::string type. The class should inherit the given Abstract- Phone class. You are not allowed to change the prototypes in AbstractPhone.h. The AbstractPhone class is an abstract class since getPhoneNumber() is declared as a pure virtual function. You should implement both the one argument constructor and two argument constructor. LocalPhone class is a derived class from AbstracPho

assign3.pdf
Date.cpp
Date.h
Main.cpp
Makefile

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