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Home » Compete » December 2011 Long Contest
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
Birthday Gift CHEFGIFT 133 9.41
Hypertrees HYPER 3 37.5
Robot Movings MOVES 230 12.39
Short II SHORT2 7 1.45
Spinning Wheels SPIN 35 58.05
Ciel and Eggs STREGGS 80 8.07

The December Contest has ended!

Editorials on each problem can be foundĀ here.

All problems have been added to the practice section.

Solutions are public for all problems.

And do not forget to read the Winners BlogĀ 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 okay. In case you notice any malpractice or cheating during any contest please email us at feedback@codechef.com

Contest problems will become visible on December 1st, 2011 at 1500 hours IST.


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 tie-breaker problem, where the best solution will receive one point and all other solutions will receive a fraction based on how close they come to the best solution.

Announcements

December 3rd, 04:30pm: The example inputs for the problem CHEFGIFT has been modified a bit.

CONTEST ENDED.

RESULTS:

  • Global
  • India
  • Non-Indian
Programming Competition Fetching successful submissions
Rankings are refreshed every few minutes.
Directi Go for Gold

RECENT ACTIVITY:

Fetching recent activity

RECENT COMMENTS FOR THIS SECTION:

09:06 PM Dec 14th: abhi_iit_10691 commented on Birthday Gift: i am getting a runtime error...i dont think memory usage or out of bound array acc...
11:14 AM Dec 13th: mr777 commented on Birthday Gift: @prabutdr: I've seen the submitted solutions and some of them are wrong. I don't k...
06:17 AM Dec 13th: prabutdr commented on Birthday Gift: Admin/Anyone, As per my understanding following test case should return 36 as re...
04:00 AM Dec 12th: dark_rider96 commented on Birthday Gift: i keep getting wrong answer... i have used djikstras to find least cost path to th...
03:58 AM Dec 12th: dark_rider96 commented on Birthday Gift: Can anyone please explain why we can't use a variant of dijkstras ... and why most...
04:35 PM Dec 11th: mr777 commented on Birthday Gift: @Admins: I want to challenge the successful submitted solutions. Is there any opti...
04:27 PM Dec 11th: mr777 commented on Birthday Gift: @Admins: Can you kindly provide me with the test cases you applied on algorithm? I...
02:12 PM Dec 11th: moawalling commented on Short II: Are negative integers permissible for 'a' or 'b'? if p=2 and a= -4, b= 6; then ab=...
01:25 AM Dec 11th: mr777 commented on Birthday Gift: @bodmas: According to the constraints, NO
12:28 AM Dec 11th: bodmas commented on Birthday Gift: can m have a value of zero in the input file?
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CodeChef - A Platform for Aspiring Programmers

CodeChef was created as a platform to help programmers make it big in the world of algorithms, computer programming and programming contests. At CodeChef we work hard to revive the geek in you by hosting a programming contest at the start of the month and another smaller programming challenge in the middle of the month. We also aim to have training sessions and discussions related to algorithms, binary search, technicalities like array size and the likes. Apart from providing a platform for programming competitions, CodeChef also has various algorithm tutorials and forum discussions to help those who are new to the world of computer programming.

Practice Section - A Place to hone your 'Computer Programming Skills'

Try your hand at one of our many practice problems and submit your solution in a language of your choice. Our programming contest judge accepts solutions in over 35+ programming languages. Preparing for coding contests were never this much fun! Receive points, and move up through the CodeChef ranks. Use our practice section to better prepare yourself for the multiple programming challenges that take place through-out the month on CodeChef.

Compete - Monthly Programming Contests and Cook-offs

Here is where you can show off your computer programming skills. Take part in our 10 day long monthly coding contest and the shorter format Cook-off coding contest. Put yourself up for recognition and win great prizes. Our programming contests have prizes worth up to Rs.20,000 and $700lots more CodeChef goodies up for grabs.

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Are you new to computer programming? Do you need help with algorithms? Then be a part of CodeChef's Forums and interact with all our programmers - they love helping out other programmers and sharing their ideas. Have discussions around binary search, array size, branch-and-bound, Dijkstra's algorithm, Encryption algorithm and more by visiting the CodeChef Forums and Wiki section.

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Go For Gold

The Go for Gold Initiative was launched about a year after CodeChef was incepted, to help prepare Indian students for the ACM ICPC World Finals competition. In the run up to the ACM ICPC competition, the Go for Gold initiative uses CodeChef as a platform to train students for the ACM ICPC competition via multiple warm up contests. As an added incentive the Go for Gold initiative is also offering over Rs.8 lacs to the Indian team that beats the 29th position at the ACM ICPC world finals. Find out more about the Go for Gold and the ACM ICPC competition here.

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