Computer Science 501
Data Structures and Algorithm Analysis

Fall 2014, The College of Saint Rose

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Disclaimer

Everything on this syllabus is subject to change. Changes will be announced in class and updated in the online version of the syllabus.

Course Objectives

From the course catalog: "This course studies the implementation of abstract data structures and the efficiency analysis of algorithms. There will be required programming projects in C++ [though we will use Java instead]. Topics will include algorithm analysis, recursion, sorting, randomization, graph algorithms, hash tables, and the implementation of abstract data structures (lists, stacks, queues and trees)."

Prerequisites

• You should be able to design and implement programs in a high-level language (e.g., Java, C, C++), including appropriate documentation. The assumption is that you are most familiar with Java and that you have programming experience equivalent to an undergraduate data structures course (CSC 302 here at Saint Rose). CSC 523, Advanced Programming, has been designed to cover the expected prerequisite material. We will begin our study of data structures by quickly discussing even the simplest structures, but you should have at least seen how to implement and use structures like vectors/arraylists and linked lists.
• Expected mathematical background includes high school algebra and some calculus (elementary derivatives, limits, summations, recurrence relations), and topics from discrete math.

Texts

The text for the course is Java Structures: Data Structures in Java for the Principled Programmer, "Root 7" Edition (a free online textbook) by Duane Bailey. So there are no books to buy! You may print or view the text in Portable Document Format. Other readings will also be assigned from freely available sources.

Lectures

Everyone is expected to attend class and participate in discussions. There is no formal attendance policy, but a lack of regular attendance is certain to result in lower grades on assignments and exams. Do not expect sympathy if you are struggling but are rarely seen in class and during office hours. Supplemental readings are listed on the lecture and reading schedule. You will be responsible for all material in the reading, even if we do not specifically discuss each topic in class.

Be prompt, prepared, and ready to focus on the day's topics. This should go without saying, but this means your phones and other devices not being used exclusively to follow along with class materials and/or to take notes must be powered off. You may bring food or drink to class, as long as you are not a distraction to your classmates or instructor. When we have College computers out, no food or drink can be allowed.

Most labs will include an assignment due at the start of the next class and/or an assignment we will complete during class. These will usually be designed to focus your attention on some aspects of the assigned readings. No late submissions of the "lecture assignment" portions of the labs will be accepted, as they will normally be discussed in class on the due date. Some lecture assignment questions will be graded for correctness, while others will be graded based on whether an honest effort was made.

The lecture and reading schedule has a link to a web page for each lecture highlighting the day's topics, listing any class examples and assigned readings. The notes used to guide in-class presentations are also available as PDF files linked from the lecture and reading schedule.

Labs and Project Assignments

We have the advantage of holding all of our class meetings in a computer lab. This allows a portion of our class time to be used for lab activities. Time will be set aside during class meetings on a regular basis to get you started on lab exercises. It may be possible to complete some labs during the meeting, but most of the time you will need to continue to work on your own and turn them in later. Some labs will include larger programming projects, some of which will also include a written component. assignments. You may develop your programs anywhere (Computers in the labs, your own PC, etc.) but grading will be done using BlueJ on the Saint Rose Computer Science lab systems unless otherwise specified. It is your responsibility to ensure that your program works on the grading platform. Programs will be graded on design, documentation, style, correctness, and efficiency. Unless otherwise specified, you are permitted (and are in fact, encouraged) to get help from the Computer Science tutors in the Academic Support Center and from your instructor. You may discuss the labs with your classmates, but the work you submit must be your own (and that of group members, for work done in groups when permitted).

Your submissions for lab assignments will include several types of items. Different requirements apply to each, as described below. It is important that you adhere to file format and naming requirements to facilitate grading. Submissions that do not meet these requirements will not be accepted.

Lab Questions

The answers to all "lab questions" for a particular lab should be included within a single plain-text or PDF file named labn.txt or labn.pdf, as appropriate, where n is the lab number. The file should start with your name and the lab number. If you use plain text, your file should be appropriately line-wrapped for easy reading in a window or on a printed page with a width of 80 characters.

Note: for lab questions that ask you to draw a memory diagram, you have a few options. You may attempt to represent the memory with plain text, but that is difficult to construct and read. Ideally, you would use a drawing program and submit in your PDF file, but you are also permitted to draw the diagram on paper and submit a scan or photograph, as long as the diagram is legible in that form.

Practice Programs

Your submissions for practice programs are graded primarily on correctness, but you will be required to include your name at the top of the program, and you must use the file name specified. You will normally demonstrate practice programs and submit them electronically, but no printout needs to be submitted.

You are of course encouraged to practice good documentation, formatting, and style for these programs, but the grade will depend only on correctness (and having your name in a properly-named file).

Programming Assignments

These are the most formal submissions and will be graded on design, documentation, style, correctness, and efficiency (where appropriate). A good design will use an appropriate algorithm, data structures, and language constructs to solve the problem. A well-documented program will include a comment at the top of each file that includes your name, the assignment, and a description of the contents of the file. There should also be comments for each constructor or method definition (including a brief description of the method's purpose, its parameters, and return value), each variable or group of related variables, and any section of code whose purpose and/or behavior is not obvious from context or the code itself. Style requirements include appropriate formatting (sufficient and consistent indentation, spacing, and punctuation, wrapping long lines of code), good use of named constants, and meaningful and appropriate names for variables, methods, constants, and parameters. Correctness, of course, requires the expected output be produced for a set of test inputs (which will normally not be provided in advance). Efficiency will be more important in some assignments than others, and requires that the program does not do any unnecessary computation or use any more memory than needed. And, of course, you must use the file name(s) specified. You will normally be required to demonstrate programming assignments, submit your source code electronically, and submit a printout of your program.

Unless otherwise specified, late lab and project work may be turned in with a penalty computed as 1.08^h%, where h is the number of hours late. Extensions will only be granted in serious situations. You can find a Java program that prints out a table of the late penalties here. Work turned in after solutions have been made available cannot receive credit.

All assignments are to be submitted electronically using the procedure specified on each assignment handout. Please submit written work in portable formats (plain text where appropriate and PDF otherwise). If in doubt about a file format, please check before submitting. Keep a copy of all submissions for yourself. For submissions consisting of more than one file, you will normally be required to submit a single archive (.zip, .7z, and .tar.gz files are acceptable) containing all necessary files.

Exams

There will be two written exams. A midterm will take place during our regular class time on October 7. The final exam will take place during our "finals week" meeting on December 9.

Grading

Grades for individual assignments and exams are not scaled. Any scaling deemed appropriate will take place at the end of the semester by adjusting the thresholds. The following thresholds may be adjusted downward (thereby raising grades) but will never be adjusted upward.

Please note the special grading policy is in effect for this course: in order to earn a grade of B or better for this course, you must have an average of B or better on the examinations, regardless of performance on labs, projects, and other assignments.

College policy forbids changing of course grades after they are submitted except in very specific cases (such as an error in grading of an assignment or in computation of a grade). Any such errors that slip through must be found and rectified quickly after grades are submitted. In rare circumstances, a student request for an incomplete grade may be approved at the discretion of the instructor. Requests must be made one week prior to the end of the semester, and terms of such arrangements must be mutually agreed upon before grades are submitted.

Attendance

Every college student should be motivated to attend every lecture and lab meeting for all the right reasons (e.g., desire for knowledge, desire to get the most out of every very expensive minute, etc.). As college students, you understand that regular attendance is essential to your ability to master the course material.

Therefore, there is no formal attendance policy. You are expected to attend regularly, and should still see the instructor about any excused absences. An excused absence may be any of the following:

1. A documented athletic or academic event that conflicts with a class meeting. The required paperwork must be presented in person at least one week prior to the event.
2. A family emergency.
3. Personal illness.

While there is no formal penalty for unexecused absences, missing class regularly, frequent tardiness, or being distracted in class (e.g., checking your phone or Facebook) will be considered a sign that you are not taking the course seriously. Common sense suggests and experience validates that students who are frequently absent, late, or inattentive perform poorly on graded work. Do not expect compassion when final grades are assigned or extensive extra help if you do not understand a topic that was covered while you were absent without a valid excuse.

Disability Accomodations

If you are a student with a documented disability and require academic accommodations please register with Lynn Cantwell, the Director of Services for Students with Disabilities, located in the Academic Support Center on the 2nd floor of St. Joseph Hall (campus extension 2335 or 518-337-2335, off campus) for disability verification and for determination of recommended reasonable academic accommodations. After you have made arrangements with that office, please see me to discuss your accommodations. Please remember that timely notice will help avoid a delay in your receipt of accommodations.

Academic Integrity

You are encouraged to discuss the concepts related to course assignments and exams with your classmates. This is an essential part of a healthy academic environment. However, work submitted for grading must be your own (or the combined work of group members, for group assignments). Any unauthorized copying or collaboration is considered a breach of academic integrity and will not be tolerated. Plagiarism, cheating, academic misconduct, or any other submission of another's work as one's own are unacceptable. Students working in groups are each individually responsible for the academic integrity of the entire group project. Academic dishonesty cases are unpleasant and uncomfortable for everyone involved. You are responsible for reading and understanding The College of Saint Rose Policy on Plagiarism and Academic Integrity.

The minimum penalties for a first violation will include failure (0 grade) for the assignment or exam in question and the filing of a Academic Dishonesty Report Form with the Registrar's office. A second violation will result in failure of the course and a second Academic Dishonesty Report Form.

If there is any doubt about the degree of collaboration allowed or the permitted sources for a particular assignment, please ask for clarification before collaborating or consulting the source. Any such collaborations or sources must be cited properly.