Try your hand at one of the practice problems, and submit your solution in the language of your choice (our judge accepts solutions in over 35+ languages). Receive points, and move up through the CodeChef ranks. Get better, and better prepare yourself for the competitions
Name Code Successful Submissions Accuracy
Generalized Arithmetic Progression Free Sequence GENARSEQ 99 11.72
Lame Queen Game LAMQUGAM 3 15
First non-Palindrome NONPALIN 16 20.78
Permute Digits PERMDIG 10 17.86
Chef Travel Routes TRAVELER 192 35.12

The October Cook-off has ended.

You can view the ediotrials for the contest here.

The Winners blog is up, and can be viewed here.

------------------------------------------------------------


Rules:

In case you are a new user, you will need to first register for a CodeChef ID here.

  • Please do not discuss strategy, suggestions or tips in the comments during a live contest. Posting questions clarifying the problem statement is ok. Comments will be published only after admin approval during the contest. If you are unsure, email us at feedback@codechef.com

  • You can also send in your queries in an email to contest-admin@codechef.com, during the contest.

  • Contest problems will become visible on October 23rd, 2011 at 21:30 (IST). There will be 5 problems in all.

  • You will receive one point for solving a problem (passing all test cases - no partial credit), regardless of the level of difficulty of that problem.

  • Users are ranked according to the most problems solved. Ties will be broken by the total time for each user in ascending order of time.

  • The total time is the sum of the time consumed for each problem solved. The time consumed for a solved problem is the time elapsed from the beginning of the contest to the submittal of the first accepted run plus 20 penalty minutes for every previously rejected run for that problem. There is no time consumed for a problem that is not solved.

Announcements

09:30pm: We apologise for problems not appearing on the scheduled time. The contest has been extended by 15 minutes.

09:55pm: The Rank List for the CodeChef October Cook Off is available 
here: http://www.codechef.com/rankings/COOK15

10:10pm: All contestants that see a strange sign =/ in the problem statement of GENARSEQ please update pages with all the problems. Problem statements was changed several times during the beginning of the contest.

CONTEST ENDED.

RESULTS:

RECENT ACTIVITY:

RECENT COMMENTS FOR THIS SECTION:

09:45 PM Oct 27th: rama3572 commented on Chef Travel Routes: Is the time limit for each of the T cases or for entire set of T-cases?
08:06 AM Oct 25th: rahul_chk commented on Generalized Arithmetic Progression Free Sequence: kk..i got the answer....i forgot to read the FAQs.. sorry for the trouble...
07:57 AM Oct 25th: rahul_chk commented on Generalized Arithmetic Progression Free Sequence: can we post our solutions after a contest has ended just to check if our solution ...
10:32 PM Oct 24th: hemant.adil commented on Chef Travel Routes: @logic_max : Thanks :)
02:12 AM Oct 24th: pdwd commented on Chef Travel Routes: Can somebody explain me plz, why this code: http://ideone.com/gGHy7 gets WA?
01:47 AM Oct 24th: logic_max commented on Chef Travel Routes: @hemant.adil : When only one city is given, which is not correct name; your soluti...
01:07 AM Oct 24th: amanymca24 commented on Generalized Arithmetic Progression Free Sequence: where can i post my solution????
12:53 AM Oct 24th: hemant.adil commented on Chef Travel Routes: Can anyone tell whats wrong with my code?? For test case it is working... my subm...
12:21 AM Oct 24th: mkagenius commented on First non-Palindrome: solutions not visible, make it visible, i know u guys are very lazy.
12:04 AM Oct 24th: anton_adm commented on Generalized Arithmetic Progression Free Sequence: @tunyash No comments. You should figure out it by yourself.
CodeChef is a global programming communityCodeChef hosts online programming competitions