its a simple if else. i need the help with the if else statement and i need a code that includes each one of the grade..

Let's write a program that helps a professor find the score of a student in a class based on the result of 3 exams. The professor believes that the student's score should be the average of the maximum and minimum of the 3 exams. The student's letter grade is then determined based on the score and the following grading scale: Write a C++ program that prompts the user for their 3 exam scores, prints the minimum and maximum scores, prints their final score, and their respective letter grade