C++

Write a program that allows the user to enter the percentage grade of 30 students in a class. The program should have the following conditions: Make sure the user enter 30 valid percentage grades between 0 and 100. If the user enter out of rage value, the program should show the error message "Not correct grade in percentage scale" and don't use that grade. By entering each grade in percentage, the program should show the corresponding grade and grade definition at the output screen according to the following table. After the user finish entering the grades, the program should show the number of students and the average GPA of students in each six grade definitions as shown in the table. Finally program should show the average GPA of all students in percentage scale [0-100] and GPA scale [0-4]