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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 1017 problems, 233282 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)

CCO 2015 Problems Added

by Alex on Jun 05, 2015 - 11:08:55 pm UTC

Suggest some tags!

by jargon on May 02, 2015 - 3:42:13 am UTC
Better problem tagging infrastructure is on its way, and we need help figuring out which tags would be useful!

Please reply to this post with suggestions.

CodeIgniter upgraded to 3.0

by bbi5291 on Apr 30, 2015 - 6:12:58 am UTC
This is a major change to the PEG Judge's codebase. I have tested to make sure most features on the site are still working, but some may be broken. Please report bugs here.

In addition, you might need to clear your cookies before you can log in again.

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