CSC 215

Fall '98 Section 701

Assignments

Week 1: September 15th

By September 22nd: Edit, compile, and run a program to print "Goodbye, world!" in the same way that the program hello.cpp prints "Hello, world!". Call the file containing your program goodbye.cpp. Use the program hello.cpp as a model. (10 points)

By September 29th: Please read chapters 2 and 3 in the textbook.

By September 30th: Edit, compile, and run a program called metric1.cpp that converts a measurement in inches to a measurement in meters. Your program should ask for the measure in inches, convert that to meters, and print out the number of meters. Note: There are 39.36 inches to a meter. Use convert1.cpp as a model.

By September 30th: Edit, compile, and run a program called metric2.cpp that converts either a measurement in inches or a measurement in feet to a measurement in meters. Your program should first ask for which sort of measurement is being converted. Use a character variable for this. It should then calculate the correct conversion and print that out. Use convert2.cpp as a model.

By October 6th: Please read chapter 4 in the textbook.

By October 7th: Edit, compile, and run a program called metric3.cpp that performs exactly the same conversion as metric2.cpp but that uses a separate function to do the conversion. Use convert4.cpp as a model. In addition, write the program so that it accepts both upper and lower case input and so that it prints an error message if the user specifies an unknown conversion type.

By October 7th: Edit, compile, and run a program called metric4.cpp that allows a user to perform conversions repeatedly. It should (at least) have a separate function to perform the conversion. Use convert5.cpp as a model.

By October 13th: Please read chapter 12 in the textbook.

By October 16th: Edit, compile, and run a program called loan1.cpp that repeatedly:

• prompts the user for the principal;
• prompts the user for the annual interest rate;
• prompts the user for the term (number of years);
• computes the total amount paid on the loan;
• prints that total amount.
• asks the user whether he or she wishes to repeat;

In both cases, you will need a loop. If you use the second approach, I recommend writing a separate function for computing powers.

By October 20th: Edit, compile, and run a program called loan2.cpp that does the same thing as loan1.cpp but that uses three separate functions to get the required input. Make sure that the functions verify the input (eg, the principal amount should be greater than zero).

By October 27th: Please read chapter 5 in the textbook.

By October 30th: Edit, compile, and run a program called maxfile.cpp that reads from a file called posints.txt a list of positive integers and outputs the maximum. Use as a model the program sumfile.cpp.

By November 6th: Edit, compile, and run a program called charcount.cpp that reads text from a file whose name is supplied by the user and outputs out the number of lowercase letters and the number of uppercase letters. Some additional points:

• Your program should terminate if it cannot open the file specified by the user.
• It should process the text file using character input/output, as in the program copytext.cpp.
• There are two functions defined in ctype.h that you will find useful. They are isupper, which takes a single character as an argument and returns true if that argument is an upper case letter, and islower, which does the same thing for lower case letters.

By November 14th: Edit, compile, and run a program called student.cpp that reads input from a file containing grade data, computes various statistics on the scores, and prints out a report.

Your program should request the name of the input file. Each line of the input file will have the following items:

• the student's last name (character string)
• the student's first name (character string)
• three assignment scores (each integer)

• the student's last name (character string)
• the student's first name (character string)
• the total of all of the student's scores (integer)
• the average of the student's scores (double)

• the number of students processed (integer)
• the average of all of the scores (double)

• one to open the files;
• one to produce the output containing one line for each student and the summary line; this function should, in turn, call a function to calculate the average score of each student;
• one to close the files;

• the maximum value;
• the minimum value;
• the average;
• the standard deviation.

• fillArray, which fills the array from the file. You may assume that there are no more than 30 values in the file (although there may be fewer but there always be at least one value).
• averageArray, which returns the average of the values in the array.
• standardDev, which returns the standard deviation of the values in the array.
• maxArray, which returns the maximum value in the array.
• minArray, which returns the minimum value in the array.

Input and output files

Late policy: A programming assignment loses 10% for each day that it's late; that is, if an assignment is originally worth 20 points, it will be graded out of 18 points if it's late one day, out of 16 points if it's late two days, and so forth.

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