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
Rearranging Digits ARRANGE2 33 3.55
Block Tower BLOCKS 47 76.1
Happy Days HAPPY 42 5.41
Adding Least Common Multiples LCM 14 1.68
Maximal crosses MAXCROSS 221 14.54
Closest Ranking VOTING 76 10.83


View the editorials to the the contest problems here.

NOTE: The 'Clarification' in the problem statement for MAXCROSS has been updated on July 2nd at 6:15pm

* Please do not discuss strategy, suggestions or tips in the comments during a live contest. Posting questions clarifying the problem statement is ok. If you are unsure, email us at feedback@codechef.com

* Contest problems will become visible on July 1st 2010.

* 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.

* You can submit solutions as many times as you'd like, there are no penalties for incorrect submissions.

* Each contest will have one min/max tie breaker problem, where the best solution will receive one point and all other solutions will receive a fraction based how close they come to the best solution.

CONTEST ENDED.

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RECENT COMMENTS FOR THIS SECTION:

10:57 AM Jul 19th: triplem commented on Maximal crosses: It may be running fine on your computer, but your computer can't be set up the sam...
08:10 AM Jul 19th: linuxfreak commented on Maximal crosses: @Stephen.. Thankyou for your reply... I corrected the else part.. and my solution ...
02:17 PM Jul 17th: f03nix commented on Rearranging Digits: ^ for me even that failed , i must've been using wrong way to move through the per...
11:00 AM Jul 16th: triplem commented on Maximal crosses: Have you allowed for the \r character that appears before \n in newlines? (See the...
07:26 AM Jul 16th: jc_ortz commented on Maximal crosses: @Stephen how can I know why my solution fail? I have compared my output with the o...
03:10 PM Jul 14th: Sanji commented on Adding Least Common Multiples: @nitin surana The code submitted by Aswin Akhilesh is actually correct. Probably ...
11:02 AM Jul 14th: theeporithirumugam commented on Block Tower: Post The Tutorials for this month contest,,,(JULY10)
07:15 AM Jul 13th: triplem commented on Maximal crosses: Your latest submission doesn't appear to be working on the sample input. Your four...
08:37 PM Jul 12th: linuxfreak commented on Maximal crosses: @Stephen or anyone who has solved this problem... can you help me to find out the ...
06:07 PM Jul 12th: nitin_surana commented on Adding Least Common Multiples: and even when i give the test cases given here, the output is much greater then gi...
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