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Hello, World!

Welcome to the PEG Online Judge. This site was created by members of Woburn Collegiate Institute's Programming Enrichment Group as a resource for competitive programmers everywhere. We also run PEGWiki, a site for information and tutorials of algorithms.

Currently, we have 1089 problems, 379826 submissions, 277 analyses, and support for 15 languages.

If you are new here, register an account and get familiar with the judge by solving A plus B. Alternatively, you can try a random problem that you haven't solved.


Announcements (See All)

Woburn Challenge Online Round 2

by Alex on Nov 30, 2016 - 11:11:26 pm UTC
This year's Woburn Challenge is back for round 2! A reminder that this year's online contests are running on Sundays! To be eligible for prizes, you must complete this year's registration form (see woburnchallenge.com/register) even if you have participated last year. If you have an existing PEG Judge username, you can continue using it. All Canadian high school students are eligible for prizes (you must be first registered through the aforementioned website), but everyone with a PEG Judge account is welcome to participate. If you did not participate in round 1, it's not too late to sign up and participate!

2016-17 Online Round 2

When: Sunday, December 11th, 2016 from 2:00 pm to 5:00 pm ET
Where: The PEG Judge interface (wcipeg.com/contests)
Format: 2 divisions, 3 hours, 4 problems, infinite submissions, and live feedback.
Prizes:
  • Top 3 Junior division winners: $50, $25, $25
  • Top 5 Senior division winners: $200, $100, $50, $50, $50
Full format and rules can be found at: woburnchallenge.com/contest
For more details, visit woburnchallenge.com. For questions, email [email protected].

Finally, please forward this to your friends (especially at other schools) who are interested in computer programming -- we want to get more students involved!

Good luck and enjoy the problems!

Woburn Challenge round 1 results are now available!

by Alex on Oct 20, 2016 - 3:27:55 pm UTC
Thank you for joining us in this year’s Woburn Challenge, new and returning participants alike! Hopefully, the spooky problems of this round were able to jitter your programming prowess back into shape for the upcoming contest season. Problems, solutions, and test data are now posted here.

The senior division prizewinners are:
  • Jason Yuen of Pierre Elliott Trudeau High School ($200)
  • Victor Rong of Marc Garneau Collegiate Institute ($100)
  • William Wen of Pierre Elliott Trudeau High School ($50)
  • Andrew Lin of University Hill Secondary School ($50)
  • Arielle Shannon of University of Toronto Schools ($50)
The junior division prizewinners are:
  • Allan Xu of Woburn Collegiate Institute ($50)
  • Anish Mahto of Turner Fenton Secondary School ($25)
  • Joey Zhong of University of Toronto Schools ($25)
Congratulations! These prizes will be distributed as Visa gift cards, and we will be contacting your teachers shortly about sending them out. Remember that we will have many prizes in the remaining rounds of the year, so keep on practicing!

Woburn Challenge 2016-17 Online Round 1

by Alex on Oct 04, 2016 - 6:21:28 am UTC
Edit: The contest is over! Many thanks to all of you who participated. The questions have been cloned to the main judge. We will be posting prizewinners and analyses to all of the problems shortly. Check here, as well as our website periodically! Feel free to submit to them for practice while we work on publishing results and analyses. Note that J3 and S1 are the same question, as are J4 and S2. Thus, submissions to J3/J4 are not moved over and junior competitors will have to resubmit them to S1/S2 on the main judge.

Problems: J1, J2, J3/S1, J4/S2, S3, S4

The Woburn Challenge is back for the 2016-17 school year! We've awarded thousands of dollars in prizes last year and are excited to do it again this year.

Our 1st online contest will take place on a Sunday this time! To be eligible for prizes, you must complete this year's registration form (see woburnchallenge.com/register) even if you have participated last year. If you have an existing PEG Judge username, you can continue using it. All Canadian high school students are eligible for prizes (you must be first registered through the aforementioned website), but everyone with a PEG Judge account is welcome to participate.

2016-17 Online Round 1

When: Sunday, October 16th, 2016 from 2:00 pm to 5:00 pm ET
Where: The PEG Judge interface (wcipeg.com/contests)
Format: 2 divisions, 3 hours, 4 problems, infinite submissions, and live feedback.
Prizes:
  • Top 3 Junior division winners: $50, $25, $25
  • Top 5 Senior division winners: $200, $100, $50, $50, $50
Full format and rules can be found at: woburnchallenge.com/contest
For more details, visit woburnchallenge.com. For questions, email [email protected].

Finally, please forward this to your friends (especially at other schools) who are interested in computer programming -- we want to get more students involved!

Good luck and enjoy the problems!

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