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2014-11-14

Jubilee competition is coming!

The registration is coming soon, but the important dates are ready, with the poster :-)

You can view the official Challenge24 (2015) poster:

Challenge24 2014 poster

Would you like to print it originally in A2 or a paper copy? Just write us! Medium version for A4 is here. Share within you community! It would be awesome!

Dates of contest days in 2015

2014-08-26

Are you interested what happened on the competition?

Here is an interview with the taskwriters, contestents, and organizers:




2014-05-24

Do you really want to feel the Challenge24 finals atmosphere?

We kindly recommend to you to watch this video:




MPG (Download)

2013-05-04

Here are the final results

Congratulations to the team PrecisionScrewdrivers!

The final results are on the team list page, and you can view the photos in the gallery.

  1. PrecisionScrewdrivers (Poland) - 15 287 points
  2. Omnibus_trip (Russia & Belarus) - 13 192 points
  3. HoChockiGon (Poland) - 11 265 points
  4. Charles_University_Legion (Slovakia & Czech Republic) - 10 986 points
  5. Havka-papstvo (Russia) - 10 825 points
  6. The_Saratov_Approach (Russia & Poland) - 8 897 points

You can download the problem set here.

Detailed results:

TeamTotal ScoreABCDEFGHIJKLMNOP
1PrecisionScrewdrivers15282823400060386898045441139620091515656003251908334
2Omnibus_trip1319272009809479801744670245601000930237501866297
3HoChockiGon112608991500931855990868000118009314402482043375
4Charles_University_Legion10961459500935814960222356001635579913108902084415
5Havka_papstvo108259650965262990177464379257562080989512952220207
6The_Saratov_Approach889258808751379371640300295644911215201467467
7PigsAndHedgehogs70026520946313957197451023464305610000149
8Eisenhuttenstadt69532914000-100988289416000641185000153
9Team885704684095579794210041100060721508330160
10SPb_SU_45616667095186199039540400038639202200350
11viral5166592500960357952183000080474500073
12The_Teddyborg5101871062079896054438002050007510404
13Scorpions497559707407989602534140011650000048
14Unpretired47144640956097041941800059614603410404
15Vitamin4582380094630095111100000700800560464
16burek450779409270968228000000001237353
17KamatoTasprendzia44732590942334920100375000077504930275
18ex1t44555190958535988140000056066600089
19DieHate41887950956743965000000002290500
20AngryMuffin41874150885350950954190000006640409
21SPB_NRU_ITMO_01406228909438489759300005530000361
22jedi4041756002759504033810000872000404
23UralFU_Deers376559709597129712238400000000120
24exterminators3572438065929892504190000565000268
25Sparrows24336150802530840853930006317202210358
26LastMoment325662009402749801160000000303023
27abacabadabacaba29086260880095004270000000025
DQUnutterable57587600865903975598000008282001860443
DQInsufficientIntelligence2177444000970-544500000032300

Live stream, points, gallery

2014-05-03

Live stream is available here

Current scores (updated in every minutes, until the last hour.)

Image gallery

Schedule

2014-04-28

Schedule is available for download.

EC results

2014-02-08

The EC results are on the team list page.

Congratulation to the winning team HoChockiGon and thanks to all the participants.

30 teams can participate in the finals, but the first 50 teams will be invited as usual, details will be in e-mail (see FAQ).

All materials and write-ups will be in the archive. (it will take a few days to collect so check back and if you have a writeup, solution or criticism then drop us a link on the #challenge24 irc channel and we will publish it on the EC writeup page).

If you haven't yet filled in the post-EC poll then log into your team page and please do so (this optional feed-back is useful for us).

Networking during the finals

2014-04-14

Please read our howto on connecting your computers to our network during the finals.

EC results

2014-02-08

The EC results are on the team list page.

Congratulation to the winning team HoChockiGon and thanks to all the participants.

30 teams can participate in the finals, but the first 50 teams will be invited as usual, details will be in e-mail (see FAQ).

All materials and write-ups will be in the archive. (it will take a few days to collect so check back and if you have a writeup, solution or criticism then drop us a link on the #challenge24 irc channel and we will publish it on the EC writeup page).

If you haven't yet filled in the post-EC poll then log into your team page and please do so (this optional feed-back is useful for us).

Pre-EC results

2014-02-02

Pre-EC results are on the team list page.

Congratulation to the team donnu who got the highest scores.

All materials and write-ups are in the archive as usual.

Pre-EC on this weekend

2014-01-28

As in previous years, there will be a "demo round" one week 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 12 hours long to accommodate various timezones and schedules, but it doesn't typically require more than a couple of hours to solve the tasks.

Hotel

2014-01-28

If you've been prevented from entering the competition before by the costs of finding a hotel room in Budapest, we have good news: we will provide accommodation in a hotel to every team in the finals, free of cost. Rooms are available between May 1st and May 5th - so you'll have some time to do some sight-seeing in Budapest, if you'd like. As in past years, there will be some common activities, with optional participation.

For team coaches, significant others, unofficial teams etc., we can offer rooms in the same hotel for 22 EUR/night/person. After the EC, there will be a web survey where the winning teams can request accommodation.

Challenge24

Winners of 2013
Winners of 2012

Get ready for the EXTREME challenge!

The International 24-hour Programming Contest, also known as Challenge24, is held every year in Budapest on the last weekend of April or the first weekend of May.

Tryout online: Electronic Contest (EC) is a six-hour online qualification round.

Register here

Teams of three solve complex programming, artificial intelligence and mathematical problems during the 24 hours of the final round. Challenge24 is one of the few contests where participants are free to choose their tools, platforms and programming languages, and problems are presented only using open file formats.

News

2014-01-19

Share your Challenge24 experience!

Have you got a good Challenge24 story? Would you like to share it? Like this (from 2012):

Do not try to solve any task by hand. There's always a trick in the background (we tried to submit the number of triangles by hand in the first 2 minutes, but of course, there was a trick involved, so we earned a nice -5 points just after the contest started).

2014-01-01

Challenge24 in 2014

Dates of contest days in 2014