Overview

• Understand the grading scheme for CMSC 201
• Be able to break a program down into multiple functions
• Practice writing function definitions and calling them

Grade Report

• You will be writing a program that computes the weighted final grade for a 201 student.
• For this task, you'll be provided a file, lisa.txt, containing the student's name followed by each of the assignment weights and corresponding grades, with one piece of information on each line.
• Your program will produce a grade report for that student which contains the student's name, their course score and their letter grade for the course.
• lisa.txt has the following content:
lisa.txt

Lisa
0.03 
91 
0.03 
99 
0.03
89 
0.03
90 
0.03
100 
0.03
100 
0.03
98 
0.03
95 
0.08
85 
0.08
100 
0.25
94 
0.25
92 
0.10
34

• To get a copy of this file, use the following command:

cp /afs/umbc.edu/users/b/o/bogar/pub/lisa.txt .

The Functions:

• You should implement the following functions for this program:
  • main()
  • findCourseScore(courseDataList) - This function gets passed a list of assignment weights and scores, arranged with the assignment's weight followed by its score in the next position. This function is to calculate and return the course score.
  • findLabScore(labScore) - This function takes the raw lab score as shown in the file in the range of 0 - 30 and calculates a final lab score in the range of 0 - 100. See the more detailed instructions later in the lab.
  • findLetterGrade(courseScore) - this function takes the numeric course score and returns the letter grade, a string, either 'A', 'B', 'C', 'D', or 'F'

Calculating the Lab Score

• To make this lab a little easier, rather than listing all of the 12 lab scores individually, having you find the top 10 scores and returning their total, we've already done that for you. However, the total lab score shown is still a raw score that needs modification.
• Remember that the score for each lab is in the range of 0 - 3. Since the total in the file is for 10 labs, the total is in the range of 0 - 30, without the extra credit. All of the other scores shown in the file are in the range of 0 - 100. So the raw lab score needs to be modified to be in the range of 0 - 100 too.
• Since there is 1/2 pt of extra credit possible for 10 of the labs, even though the range is 0 - 30, a student could have a score of as much as 35. This should not effect your calculation; the calculation should be done as if the highest possible raw score is 30. A raw score above 30 should produce a lab score over 100. After all, that's what extra credit is all about!

grade_report.txt

Here is what the grade report should look like:

Lisa:  95.49 - A

Bonus Task

• Make the program robust to guard against bad input from the user. For instance, the weights should add up to 1.00. Since extra credit is possible on every assignment and exam any of these scores can be above 100. You should make sure that assignment grades are <= 115, exam grades are <= 105, and lab grades are <= 35. Of course there are no negative scores.

Challenge Problem

• Make a subdirectory called challenge in your lab5 directory and copy all of the files you've worked with so far into it. Modify the data file in the challenge directory to contain 12 lab scores that range from 0 to 3.5.
• Modify your code so that it sums up the highest 10 scores to produce the raw lab score.