in c++

Exercise PS.9. Implement a class Student. For the purpose of this exercise, a student has a name and a total quiz score. Supply an appropriate constructor and functions get name O, add quiz(int score), get total score(), and get average scoreO. To compute the latter, you also need to storet took Exercise P5.10. Modify the Student class of Exercise P5.9 to compute grade point averages. Member functions are needed to add a grade, and get the current GPA. Specify grades as elements of a class Crade. Supply a constructor that const grade from a string, such as "a. You will also need a function that translates grad into their numeric values (for example, "B-" becomes 3.3) ructs a