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
Graph Counting GRAPHCT 63 22.32
Tidying Posters POSTERS 47 5.61
Prime Pattern PRIMPATT 77 10.03
Squirrel and chestnut SQUIRREL 150 9.38
Pricing Tollbooths TOLLS 84 81.73
Robot Game TR2 104 13.89


Check out the editorials to this month’s contest problems here.


NEW CONTEST PROBLEM ADDED (7:00 pm Indian Standard Time):

Hello fellow contestants,

As promised we've thought and pondered and come up with what we could do best in the given situation. With great help from our problem setters and tester we have managed to come up with another problem for the contest. The problem "Stable Marriage" has been replaced with a new problem "Tidying Posters". Hopefully, you will find this one just as exciting as the previous problem.
Apologies for the time lost under the given circumstances.

Sincerely,
Team CodeChef

P.S. Thank you everyone for all the co-operation.

* 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 June 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.

RESULTS:

Rankings are refreshed every few minutes.

RECENT ACTIVITY:

RECENT COMMENTS FOR THIS SECTION:

11:25 PM Jun 24th: MichaelD commented on Tidying Posters: Groan. I give up. V(G) = {1,2,3,4,5,6} E(G) = {{1,2},{2,3},{3,4},{4,5},{5,6},{6,...
11:21 PM Jun 24th: MichaelD commented on Tidying Posters: Whoops, the formatting didn't work. I'll try again. O-O-O || | O-O-O
11:15 PM Jun 24th: MichaelD commented on Tidying Posters: @Anton: You want your "mini" to often be a vertex that does not belong to any maxi...
04:45 AM Jun 22nd: anton_lunyov commented on Tidying Posters: I want share with my solution. I didn't figure out approach with ordered set, max...
01:14 PM Jun 20th: Shr33 commented on Tidying Posters: @ stephen   Can partail problem also opend for practics ?? this month's pricing ...
04:45 AM Jun 20th: triplem commented on Tidying Posters: This was a June contest problem. The practice version is at http://www.codechef.co...
06:35 PM Jun 19th: Shr33 commented on Tidying Posters: @Admin : just like to manoj when we can submit solution for problems  
05:54 PM Jun 19th: chamanchindi commented on Tidying Posters: When will I be able to submit my solution for this problem?
11:28 AM Jun 19th: anuj.mca commented on Tidying Posters: for c#, Can we use advance data structure like Collection of some Class objects (l...
03:36 AM Jun 14th: jvimal commented on Prime Pattern: @Archit:  I don't know why you would need floating point operations for this prob...
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