1. 7
Anup Kalbalia – Lead, CodeChef

2. Role of Competitive Programming Computer Science Education7
Role of Competitive Programming in
Computer Science Education

3. Competitive Programming?7
Competitive Programming?
(also called)
Sports Programming
“Competitive programming is a mind sport usually held over the Internet or a local network, involving participants trying to program according to provided specifications.” - Wikipedia

4. 7
The core – Online Judge

5. Two most basic tasks that an online judge can help teachers:
Online Judges 7
Two most basic tasks that an online judge can help teachers:
Evaluation of Assignments
Plagiarism Detection

6. Things bundled around an online judge:
Online Judges 7
Things bundled around an online judge:
Support on many programming languages - Focus on solving problems than learning a language.
Carry it anywhere - online
Plagiarism Detection
Ratings - performance monitoring
Institution wise data
Editorials
Problem search on different topics + difficulty levels
Discussion Forum - community help

7. 7 CodeForces SPOJ Topcoder HackerRank CodeChef
Some Popular Online Judges 7
CodeForces
SPOJ
Topcoder
HackerRank
CodeChef

8. 7 PC^2 DomJudge Mushak cms (IOI grader)
Some Judges that you can use offline 7
PC^2
DomJudge
Mushak
cms (IOI grader)

9. 7 ACM ICPC International Olympiads of Informatics Google Code Jam
Most popular programming competitions 7
ACM ICPC
International Olympiads of Informatics
Google Code Jam
FacebookHackerCup
CodeChef SnackDown

10. 7
ACM ICPC

11. Me – in December 2003 @ IIT Bombay

12. Yet another Contest Platform?7
Why?
Launched in With a specific objective to improve the programming scenario in India.
By building a global community of programmers
CodeChef is not just a contest control system. It has grown into a vibrant community

13. 7 6.5+ million submissions to various problems.
Some Statistics 7
6.5+ million submissions to various problems.
2,00,000+ registered users spread across the globe
5000+ educational institutions and countries use our platform.
800+ contests hosted in the last 5 years.
3500+ problems based on ACM ICPC and IOI.
Problems available in 3 different languages - English, Russian and Chinese.

14. Features 7
Robust online judge back-end in partnership with SPOJ with extremely consistent execution run-time.
Support for 50+ languages/compilers.
A web interface making it very usable, portable, easy and friendly to use.
An online IDE with user driven customization, that self destructs all submitted solutions
Plagiarism Detection
Ratings - Institution wise filters
Verdict by
Tagged problems sorted by topics and difficulty levels
Practice Section
Elaborate Editorials for every problem
Discussion Forum
Translated Problem Statements in Russian and Chinese
Scalable - Capacity can be increased by adding additional servers
Secure judge environment - has access restriction based on IP/usernames.
Fault tolerant – No single point of failure
Runs on the cloud - no infrastructure headache. Just needs an Internet connection.
Ability to write custom validators.
On the fly re-judge facility.
Moderation of comments/announcements/solutions for contest admin.
Host your own contests - Free for use for any one
24-hour online/call support.
ICPC Integration
and many more….

15. Technology Stack 7
Runs on the cloud - AWS
MySQL
Nginx
PHP
Memcache

16. 7 Host your contests Go For Gold CodeChef for Schools
Community building and Initiatives 7
Host your contests
Go For Gold
CodeChef for Schools
Evaluation platform for universities
Course Curriculum – IIIT Delhi
Campus Chapters

17. Go For Gold

19. Institutions using competitive programming:7
Institutions using competitive programming:
IIT’s
IIIT Hyderabad
IIIT Delhi
DA-IIACT

20. IIIT D & Competitive Programming7
Admission in MTech Course based on performance of our Long Challenge Score
Lab assignments
Extra marks in subjects like
Introduction to Programming
Data Structures
Design and Analysis of Algorithms
A 2-credit elective course on Competitive programming.

21. 7 What all you can do? Use it for Lab assignments
Extra marks for our contests
Use Teaching Assistant – students
An elective course on competitive programming?
Create content and contribute towards the community

22. 7
Demo

23. Thank You Anup Kalbalia anup@codechef.com +91 9320060499