Complete the Course class by implementing the FindStudentHighestGpa$()$ member function, which returns the Student object with the highest GPA in the course. Assume that no two students have the same highest GPA.

Given classes:

Class Course represents a course, which contains a vector of Student objects as a course roster. $($Type your code in here.$)$

Class Student represents a classroom student, which has three private data members: first name, last name, and GPA. $($Hint: GetGPA$()$ returns a student's GPA.$)$