Announcements (Search)

Migration complete

by bbi5291 on Jun 18, 2011 - 8:33:50 am UTC
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The Judge has been moved to a new server.

If you notice anything strange over the next few weeks, let me know.

Note that this machine is slower than the previous one by a factor of about 1.3, so runtimes will differ accordingly.

Loss of data

by bbi5291 on Jun 06, 2011 - 5:56:56 pm UTC
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Comment ratings from January onward have somehow been deleted. Sorry for the inconvenience.


by bbi5291 on Mar 27, 2011 - 3:44:30 am UTC
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Recently, due to a performance bug, the Judge spent more than an hour trying to judge one submission. I have made some changes to prevent this from happening in the future, but if I have made any mistakes then some programs may be judged incorrect even when they are correct. If this happens then please make a note of it here and I'll fix it as soon as possible.

Session Expiry

by admin on Mar 03, 2011 - 5:27:34 pm UTC
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Sessions should expire if user is inactive for 2-3 hours.
Joyce neglected to log off of Admin yesterday and when I opened my account on the same computer today, it was already logged in as Admin.

Ratings updated

by bbi5291 on Feb 23, 2011 - 5:37:41 am UTC
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Mock CCC Analyses

by SourSpinach on Feb 22, 2011 - 9:39:10 pm UTC
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Now that the contest is over, it's a great opportunity to learn how to solve these types of problems - they represent the various things that can quite possible come up on the CCC.
The analyses and test data can be found here: here

Note on "Hide Solved"

by bbi5291 on Feb 19, 2011 - 11:45:28 pm UTC
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This search feature doesn't work right now --- specifically, it hides problems from old contests that you solved during the contest, even though it doesn't show that you've solved them here.

The 4000-point Barrier

by SourSpinach on Feb 19, 2011 - 6:25:16 pm UTC
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It has been broken.


by SourSpinach on Feb 16, 2011 - 4:41:39 am UTC
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We will be running a mock CCC contest from the morning of Friday, Feb. 18th, to the night of Monday, Feb. 21st.
All of the problems are original, and were written to give a reasonable approximation of the difficulty of a Stage 1 Senior problem set.

Expect downtime

by bbi5291 on Feb 15, 2011 - 9:56:25 pm UTC
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There will be some downtime on Wednesday and/or Thursday as Jacob and I test the new contest system. You will see "403 Forbidden: You don't have permission to access ... on this server", or a similar message. Do not panic and flood Joyce with email when this happens.