CMSC104, Spring 2007
Programming Project 1
Grade Calculator
Out: Friday, March 30, 2007
UPDATED -- Due: Saturday, April 7, 2007 before 11:59 p.m.
The Objective
This project is designed to give you practice writing a C program on your own. You will also gain experience taking pseudocode you have written and writing the corresponding code. You should practice the incremental programming technique we discussed in class.
The Task
Your job is to write a grade calculating program for CMSC104. You should use the pseudocode portion of your answer for question 2 of Homework 2. As in the pseudocode, you do not have to do any error checking of user input. In addition to printing the average, you should also determine the letter grade that corresponds to the numerical average based on the following scale:90% <= A <= 100% 80% <= B < 90% 70% <= C < 80% 60% <= D < 70% 0% <= F < 60%When figuring the letter grade, you should round the number up if the decimal portion is .5 and above. For example, an average of 89.5 is an A.
Sample Output
linux2[14]% gcc -ansi -Wall proj1.c linux2[15]% a.out Welcome to the CMSC104 grade calculation program. This program will calculate the final average and course grade for a student in CMSC104. The homework, project and exam grades should be entered individually. Each homework is worth 3%, each project is worth 9% and each exam is worth 15%. The quiz grade should be entered as an average of all quizzes. The quizzes are worth 10% of the final grade. Enter the homework 1 score: 100 Enter the homework 2 score: 80 Enter the homework 3 score: 100 Enter the project 1 score: 75 Enter the project 2 score: 90 Enter the project 3 score: 99 Enter the project 4 score: 100 Enter the exam 1 score: 92 Enter the exam 2 score: 80 Enter the exam 3 score: 81 Enter the quiz average: 90 With an average of 88.11%, your course grade is a B. Thank you for using the grade calculation program! linux2[16]% a.out Welcome to the CMSC104 grade calculation program. This program will calculate the final average and course grade for a student in CMSC104. The homework, project and exam grades should be entered individually. Each homework is worth 3%, each project is worth 9% and each exam is worth 15%. The quiz grade should be entered as an average of all quizzes. The quizzes are worth 10% of the final grade. Enter the homework 1 score: 100 Enter the homework 2 score: 80 Enter the homework 3 score: 100 Enter the project 1 score: 75 Enter the project 2 score: 90 Enter the project 3 score: 99 Enter the project 4 score: 100 Enter the exam 1 score: 92 Enter the exam 2 score: 80 Enter the exam 3 score: 91 Enter the quiz average: 90 With an average of 89.61%, your course grade is a A. Thank you for using the grade calculation program! linux2[17]%
Submitting the Program
Your program should be in a file called proj1.c
.
Here is a sample submission command. Note that the project name
starts with uppercase 'P'.
linux1[18]% submit cs104 Proj1 proj1.c
To verify that your project was submitted, you can execute the following command at the Unix prompt. It will show the file that you submitted in a format similar to the Unix 'ls' command.
linux1[19]% submitls cs104 Proj1
Last Modified: Tuesday, 10-Apr-2007 18:36:30 EDT