Your main program should still accept the name of an input file as a command line parameterFollowing is the starting codeinclude iostreaminclude fstreaminclude sstreaminclude vecto

Using C++, implement the Person/Student/Employee/Instructor/Administrator hierarchy of classes that we used for an example of inheritance at the beginning of the course. There will also be a new class Course that describes a course that a student can take or an instructor can teach. All of these classes will descend from the abstract class A2ListItem, which has the following abstract behaviours:virtual int get_id() returns an integer that is used to search or order a sorted list of objectsvirtua