Write a C++ program that computes student grades for an assignment as a percentage given...

Write a C++ program that computes student grades for an assignment as a percentage given each student’s score and the total points. The final score should be rounded up to the nearest whole value using the ceil function in the header file. You should also display the floating-point result up to 5 decimal places. You should have a function to print the last name of the student and another function to compute and print the percentage as well as “Excellent” if the grade is greater than 90, “Well Done” if the grade is greater than 80, “Good” if the grade is greater than 70, “Need Improvement” if the grade is greater than or equal to 60, and “Fail” if the grade is less than 50. The main function is responsible for reading the input file and passing the appropriate arguments to your functions. Here is an example of what the input file might look like: