COSC 072/503 Project 5

COSC 072/503: Computer Science II

Project 5
Spring 2008

Due: Mon, Apr 28 @ 5 PM
10 points

Design and implement a complete class for a binary search tree. In addition to the obvious methods, implement a print method that prints to cout the preorder traversal of the tree. You need not implement methods for printing other traversals.

main should take a file name passed in from the command line and process the commands therein. There are five commands: C for clear, P for print, I for insert, R for remove, and F for find. The I, R, and F commands will be followed by the object to be processed, which for this project will be single characters. Assume the file t0.in contains the sample input:

I b
I a
I c
F c
F z
P

which might produce the output:

seva% a.out t0.in
Inserting b...
Inserting a...
Inserting c...
Finding c...found
Finding z...not found
Printing: b a c

You will be graded on how well your implementation passes our tests, the completeness of your design, and the quality of your implementation. You do not need to document the class.

Instructions for Electronic Submission: At the top of the file main.cc (or the file containing the main function), place the following header comment, with the appropriate substitutions:

/*
 * COSC 072 Project 5
 * Name: <your name>
 * ID: <GoCard ID>
 * E-mail: <e-mail address>
 * Instructor: Maloof
 * TA: <TA's name>
 *
 * In accordance with the class policies and Georgetown's Honor Code,
 * I certify that, with the exceptions of the class resources and those
 * items noted below, I have neither given nor received any assistance
 * on this project.
 */

Instructions for Electronic Submission

If you need to include a message to your TA about your submission, then place the message in a file named README. Place the README file in the project's directory.

Assuming all of your code is in the subdirectory p5, directory, this directory and the submit program should be in the same directory:

seva% ls
p5/ submit.jar

To reduce the size of the zip file, before submitting, remove all object and executable files:

seva% cd p5
seva% make clean

If you need to include a message to your TA or me about your submission, then place the message in a file named README. Place the README file in the project's directory.

To move from the p5 directory to the parent directory, type

seva% cd ..

At this point, you should be above the p5 directory:

seva% ls
p5/ submit.jar

(Additional useful Unix commands)

When you are ready to submit, change the name of the directory to your netid. For example, if your netid is maloofm, then rename the directory p5 by typing

seva% mv p5 maloofm

Create a zip file of the directory and its contents by typing

seva% zip -r p5.zip maloofm/*

This command creates a zip file named p5.zip by recursively (-r) copying all of the files (*) from the directory maloofm/.

To submit the zip file type

seva% java -jar submit.jar -a p5 -f p5.zip

p5 is the name of the assignment (-a) and p5.zip is the file (-f) to be submitted for that assignment.

If the program submits the file successfully, you will receive a receipt by e-mail at the address <netid>@georgetown.edu.

Submit your project only once.

Once you've submitted your project, it is important to keep an electronic copy on a university machine (e.g., seva) that preserves the modification date and time. If we lose your project or the submission system breaks, then we will need to look at the modification date and time of your project to ensure that you submitted it before it was due.

You can also change the directory's name back to the original name. For example,

seva% mv maloofm p5

Note that changing the name of the directory does not change the dates of the files in the directory. You can also remove the zip file from your directory:

seva% rm p5.zip

The TA who will be grading your projects this semester is listed on the main page. You must submit your project before 5 PM on the due date.

Plan B

Submit is pretty reliable, but it is software. If you're running submit correctly and you see an error message labeled as SEVERE, then it's time to execute Plan B by using mail to submit your project.

To accomplish this, assuming the file you want to submit p5.zip, type at the seva prompt

seva% uuencode p5.zip p5.zip | mail cosc072@cush.georgetown.edu

Briefly, uuencode encodes the binary file p5.zip as an ASCII file that can be transmitted as mail. This form of the uuencode command pipes the ASCII-encoded file through standard input and into (|) the mail command.

When we receive you mail, we will save it to a file and use uudecode to translate the ASCII-encoded file back to the original binary file. Virtually all mail clients automatically encode binary files in this way.

Please don't use this account for communication. We don't check it regularly.