Introduction to Computer Science II (CSC 242)
Section 507, Winter 2026

Overview

This course is the second of a two-course sequence introducing Computer Science skills of problem solving, algorithm development and programming using Python. In particular, the concept of a class and object oriented programming will be motivated and introduced. The algorithm development technique of recursion will also be introduced. We will apply these skills in several application areas of Computer Science including web search.

Preconditions

You must have taken CSC241 or an equivalent course that introduces problem solving techniques and programming in Python. I will assume that:

Postconditions

After the successful completion of this course:

Course Calendar

[subject to change]
Week 1
1/6-8
Managing software development complexity (Ch. 7)
Week 2
1/13-15
Defining classes (Ch. 8)
Week 3
1/20-22
Object-oriented programming (Ch. 8)
Week 4
1/27-29
Object-oriented programming (Ch. 8)
Week 5
2/3-5
Object-oriented programming (Ch. 8)
Week 6
2/10-12
Intro to Recursion (Ch. 10) and Midterm exam on 2/12
Week 7
2/17-19
Recursion (Ch. 10)
Week 8
2/24-26
Searching and sorting (Ch. 10)
Week 9
3/3-5
Recursion case study: web search (Ch. 11)
Week 10
3/10-12
Recursion case study: web search (Ch. 11)
Week 11
3/17
Final Exam (2:30-4:30pm)

Instructors


Office Hours (Zoom link)
Email 
Ljubomir Perkovic (Prof)
Tu 10:00am-12:00pm (https://depaul.zoom.us/j/93908026161)
We 9:00am-11:00am (https://depaul.zoom.us/j/93908026161)
lperkovic@cs.depaul.edu
Purushottam Panchal (Lab instructor)



Please send me an email if you need an appointment at another time.

Class Hours

SECTION 507
Lectures
TuTh
3:10pm-4:40pm Room 315 in 243 S Wabash

Lab
Mo
1:30pm-3:00pm
Room 512 in 14 E Jackson

Texts

Required
Introduction to Computing Using Python: An Application Development Focus, Second Edition, Ljubomir Perkovic, John Wiley & Sons, 2015.

Note: The E-Book version of the textbook has everything you will need for this and the followup course (CSC 242). The Paperback version is missing the Case Studies Appendix; The Case Studies Appendix can be purchased in E-Book form separately through https://store.vitalsource.com/search?q=9781119185390.

Course web page

This syllabus, as well as the class lecture notes, homework assignments, D2L links, and other links can be found on the course web page at https://reed.cs.depaul.edu/lperkovic/courses/csc242. Please check this site and the discussion forum regularly.

Grading

The course grade will be apportioned as follows:
homework assignments
30%
midterm exam 30%
final exam 40%
All homework must be submitted by the deadline and no later. Any homework not handed in by the deadline will receive 0 points, without any exceptions. There will be a total of 9 homework assignments, but only your best 8 count toward the final grade, so you may miss up to one homework assignment without penalty. There will be a total of 8 labs; if you attend 6 or more labs then your best 7 homework assignments will count toward the final grade, so you may miss up to two homework assignments without penalty.

To do well in this course, you should attend the class and the labs regularly, participate in the class, lab, and online discussions, read the chapters in the book each week as indicated in the homework assignment, start working on the homework early, and talk to me promptly if you have any problems. The answers to the homework and exam questions should be written in a way that is rigorous, clear, and concise.

Policies

Lateness and Absence

No late homework will be accepted. If you don't hand in a homework/lab in time, you will receive 0 points for the homework. Midterm and final exams makeups must be arranged at least one week in advance, barring extreme situations.

Deadlines for adds, drops, and withdraws

See the deadlines here.

Changes to Syllabus

This syllabus is subject to change as necessary during the quarter. If a change occurs, it will be thoroughly addressed during class, posted under Announcements in D2L, and sent via email.

Online Course Evaluations

Evaluations are a way for students to provide valuable feedback regarding their instructor and the course. Detailed feedback will enable the instructor to continuously tailor teaching methods and course content to meet the learning goals of the course and the academic needs of the students. They are a requirement of the course and are key to continue to provide you with the highest quality of teaching. The evaluations are anonymous; the instructor and administration do not track who entered what responses. A program is used to check if the student completed the evaluations, but the evaluation is completely separate from the student’s identity. Since 100% participation is our goal, students are sent periodic reminders over three weeks. Students do not receive reminders once they complete the evaluation. Students complete the evaluation online in CampusConnect

Academic Integrity and Plagiarism

This course will be subject to the university's academic integrity policy. More information can be found at here. If you have any questions be sure to consult with your professor.

All students are expected to abide by the University's Academic Integrity Policy which prohibits cheating and other misconduct in student coursework. Publicly sharing or posting online any prior or current materials from this course (including exam questions or answers), is considered to be providing unauthorized assistance prohibited by the policy. Both students who share/post and students who access or use such materials are considered to be cheating under the Policy and will be subject to sanctions for violations of Academic Integrity.

Generative AI tools are trained on existing texts to generate content like writing and code based on prompts from users. ChatGPT, Gemini, and Claude are examples of generative AI tools. You are prohibited from using generative AI when working on homework assignments, lab exercises, and exam questions in this course. The only exception to this is when you are explicitely given instructions by the instructor to use a generative AI tool in the context of a specific assignment or exercise. We will be developing skills that are important to practice on your own and using generative AI may in general inhibit development, practice, or understanding of those skills. If you’re unsure if a specific tool makes use of AI, or if a specific tool is permitted for use on assignments in this course, please contact me. Attempting to pass off AI-generated work as your own will violate DePaul’s Academic Integrity Policy and could result in failure of the assignment or the course.

Academic Policies

All students are required to manage their class schedules each term in accordance with the deadlines for enrolling and withdrawing as indicated in the University Academic Calendar. Information on enrollment, withdrawal, grading and incompletes can be found at http://www.cdm.depaul.edu/Current%20Students/Pages/PoliciesandProcedures.aspx.

Students with Disabilities

Students who feel they may need an accommodation based on the impact of a disability should contact the instructor privately to discuss their specific needs. All discussions will remain confidential.

To ensure that you receive the most appropriate accommodation based on your needs, contact the instructor as early as possible in the quarter (preferably within the first week of class), and make sure that you have contacted the Center for Students with Disabilities (CSD) at: 
Lewis Center 1420, 25 East Jackson Blvd. 
Phone number: (312)362-8002 
Fax: (312)362-6544 
TTY: (773)325.7296