#1 [8 points]

The following class keeps track of how many students are at CollegeA and the number of classes each of them have taken in Spring 2020. The classes for each student are positive values of type unsigned int and are stored as a dynamically allocated array. The first data member is a pointer that will point to the first element of the array. This array will be of an arbitrary size. The default size of the array shall be 50, but may be specified by the user at the time of construction. The second data member represents the size of the array, i.e. the number of students at CollegeA, and is stored as unsigned int.

class Spring2020 { private: unsigned int* classes; unsigned int num; public: // constructors (default, one arg, and copy) Spring2020(); Spring2020( unsigned int numberOfStudents); Spring2020( const Spring2020& original); // destructor ~Spring2020(); // Member function int classesAtIndex( int index ); };

a.) If this is in the Class Specification (header) file Spring2020.hpp, write the function definitions that would be in the Class Implementation (source) file Spring2020.cpp.

b.) Why must the parameter of the copy constructor be of type constant reference?

Hint: Recall the discussion in class about constant reference. But this question seeks answers beyond that. Here we are passing constant reference, but as parameter to a copy constructor.