1. Write a function called printGrade.
a. function has a void return type
b. function accepts one char parameter
c. If the parameter is an A, the function prints out: Great Work!
d. If the parameter is a B, the function prints out: Good job.
e. If the parameter is a C, the function prints out: Passing.
f. If the parameter is a D, the function prints out: Not good.
g. If the parameter is a F, the function prints out: Failing!
h. For any other value, the function prints out: Not a grade.
2. Write a main function with a sentinel-controlled loop that repeatedly asks the user to enter an uppercase letter grade, or Z to quit.
3. For each input, the main should call printGrade and pass it the most recent grade entry.

LANGUAGE- C++