17th Challenge24 - 2017

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Challenge24

Challenge24, is one of the few team contests where participants are free to choose their tools, platforms and programming languages, and problems are presented only using open file formats.

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Important changes!

IMPORTANT! Due to unforeseen difficulties, this year’s contest’s deadlines changed.
The new dates are:

Registration Deadline: June 29th, 2017, 20:00 CEST (Thursday )
Electronic Contest: July 1st, 2017, 10:00 - 14:00 CEST (Saturday)
Finals: August 31st - September 3rd, 2017 (from Thursday to Sunday)

We apologise for the inconvenience and hope to see you in the competition!

Pre-EC on this weekend

2017-04-02

As in previous years, there will be a "demo round" before the EC, called the Pre-EC. This gives you the opportunity to test our submission interface and the evaluation process, and lets us check our infrastructure. You can also use the Pre-EC's problems to practice handling the file formats you may have to deal with during the EC. We think it's highly advisable to try the Pre-EC.

The Pre-EC is 10 hours long to accommodate various timezones and schedules, but it doesn't typically require more than a couple of hours to solve the tasks.

To upload a solution, you'll have to register a team.
Time of the contest: 2nd April, 2017, Sunday CEST 10:00-20:00
Download the problem set BEFORE the contest.
If you have any questions or problems, talk to us on IRC: irc.ch24.org #challenge24

News

2017-03-01

Dear contestants!

The extended registration has started!

Register here!

Be more with a challenge!

Important dates:

Registration Deadline: April 13th, 2017, Thursday CEST 20:00 --> June 29th, 2017, 20:00 CEST (Thursday )
Pre-EC: April 2nd, 2017, Sunday CEST 10:00-20:00
Electronic Contest: April 15th, 2017, Saturday CEST 10:00-14:00 (not 15:00!) --> July 1st, 2017, 10:00 - 14:00 CEST (Saturday)
Final application and invitation letter request: May 10th, 2017, Tuesday CEST 24:00 --> (soon)
Finals: June 29th - July 2nd, 2017, Thursday to Sunday --> August 31st - September 3rd, 2017 (from Thursday to Sunday)

Official in 2017: Challenge24 Hungarian Cup for the best Hungarian teams (International Finalist and maximum ten more Hungarian teams)