#2. Design the grade processing program to use functions and an array. Let

user enter number of grades (set the maximum to 50). Store grades in an

array. Create a separate function for each calculation (total of 3 functions): 1)

average grade, 2) maximum grade, 3) number of grades above the average.

Display all results. Include at least 3 test cases. Each test case should consist

of approximately 5 to 15 grades.