CS213/293: Data Structure and Algorithms 2025

Instructors: Ashutosh Gupta

Timings: Lectures 11:00-12:30 Wednesday-Friday (Slot 6), Lab Friday 14:00-17:00
Venue: CS213: LA002 CS293: SL1/2/3
(discussions on Piazza Join (Access code was given in class)

Source material

• Textbook: Introduction to Algorithms, third edition, Thomas H. Cormen, Charles E. Leiserson, Ronald L. Rivest, Clifford Stein
• Course syllabus: Slides define the syllabus. The content only before the problem section in slides is in the syllabus. In terms of problems, you must solve tutorial problems. All the other problems are optional. Any new concept defined there is not part of the course. If the concept appears in the exam, we will redefine it in the question paper.

Interaction policy

• Office hourse: every friday after the lecture
• No contact with TAs about the course via non-official channels, including WhatsApp messages.
• TAs will do a tutorial on a given set of problems at their chosen slot. Please discuss this with your TA.

Evaluation structure

• Attendance quiz: 5% (half marks for attempt and half marks for 3+ options correct)
• Quizzes: 25% (2 quizzes)
• Midterm: 30% (2 hours)
• Final: 40% (3 hours)

• Weekly lab submissions: 20% (2% each)
• Lab exams: 20% (best 3 out of 4 lab exams)
• Project: 20% (take home)

May change later.

Attendance Quiz URL

CS293 Lab exam/project schedule

• Lab exam 1: 2025-08-29 (Week 5)
• Lab exam 2: 2025-09-(15-21) (Midsem week: Department timetable)
• Lab exam 3: 2025-10-24 (Week 12)
• Lab exam 4: 2025-11-07 (Week 14)
• Project description declared: (Week 12)
• Project submission deadline: (Week 14)

Tutorials

• Tutorial problems: look at the tutorial section of slides

CS213 Lectures and quizzes

Some rules

• We do not provide solutions to the problems that are not in the tutorials. We can discuss your approach with you. Some TAs may give you answers to some of the problems. It is their choice. However, they are not obligated to provide written detailed answers.
• We do not discuss the format of the question papers. Kindly do not ask.
• We do not discuss rubrics before the rebuttal session. Do not approach TAs and seek undue influence.
• All exam rebuttal sessions will be physical and need to be done by yourself.
• Missing theory exams: prorated scores up to 30% of the course. Otherwise, makeup exam.
• Missing lab: Upto one miss, no re-exam. Otherwise, like the theory exams.

Exam rules

• Syllabus: everything that is covered in lectures before the exam.
• You may bring an A4-sized cheat sheet for theory exams. Write only on a single side. We will collect the sheet at the end. Write your rollno on the sheets. Cheatsheet is NOT allowed for the lab exams.
• Bring your physical student ID.
• Please write pseudo codes when we ask for the algorithms.
• Please always give efficient algorithms. You may not get any marks of inefficient algorithms.
• Please do not block the entry of the lecture halls or walkways by your bags. Keep them on the dais.
• Only bring a pen and a water bottle. All other items are prohibited. Digital devices (phones, smartwatches, calculators, etc.) are strictly prohibited. Turn them off and store them with your belongings.
• Keep your area clean. You are responsible for any litter around you.
• Please be seated in the assigned room. Your answersheet will not be corrected if you are seated in the wrong room.
• We will not allow entry after five minutes before the exam.
• You cannot leave exam hall without permission.
• For biobreak, only one student is allowed to leave the exam hall accross all rooms. Please ask TAs.

Leave rules for non-medical reasons

Attendance hacking challenge!

• Here is the source code of the attendance system
• If you can change your attendance by finding a flaw in the system, you will receive a grade bump!
• Ground rules: DO NOT TRY TO STEAL MY PASSWORD! Once you find a flaw, please report it to me and do not share it with others.