Codechef | CodeChef

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
Chef team	CHEFTEAM	106	5.98
Time of collisions	COLLTIME	10	7.01
Divisors number divisibility	DIVNODIV	2	2.74
Holes in the text	HOLES	460	57.34
Whole submatrix	WINDOW2	74	25.69

The Contest has now ended!

Check out the contest editorial here.
Check out the winners blog post here.

All problems have been made available in the practice section.

Rules:

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 January 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

09:45pm: The Rank List for the CodeChef January Cook Off is available
here: http://www.codechef.com/rankings/COOK06

RESULTS:

RECENT ACTIVITY:

RECENT COMMENTS FOR THIS SECTION:

07:37 PM Jul 11th: hungrycoder commented on Holes in the text: @km_rama it will be there in practice section

08:08 PM Apr 2nd: km_rama commented on Holes in the text: plz tell me somebody.I m new to codechef. if this problem has been moved to prcat...

07:03 PM Mar 13th: rushilpaul commented on Holes in the text: LOL program :-P

06:23 PM Jan 30th: warlog commented on Chef team: Sample input: 1 5 0 1 0 1 3 What should be the output? Output1: 2 1 5 4 3 Ou...

01:42 AM Jan 27th: jay123 commented on Chef team: #include<stdio.h>
int main()
{
int testcase;
int n,k;

01:06 AM Jan 24th: ambujpandey commented on Chef team: Practice problem page for this showing "Page Not Found".

01:05 AM Jan 24th: pdwd commented on Whole submatrix: All problems have been made available in the practice section. Links don't work.

12:51 AM Jan 24th: pdwd commented on Whole submatrix: Links for these problems in practice section don't work.

12:42 AM Jan 24th: vfix commented on Chef team: corrected http://www.codechef.com/wiki/january-cookoff-contest-problem-editorials

12:40 AM Jan 24th: vfix commented on Chef team: http://www.codechef.com/wiki/january-cookoff-contest-problem-editorials

CodeChef is a non-commercial competitive programming community

In order to report copyright violations of any kind, send in an email to copyright@codechef.com

CodeChef - A Platform for Aspiring Programmers

CodeChef was created as a platform to help programmers make it big in the world of computer programming. At CodeChef we work hard to revive the geek in you by hosting programming contests on a monthly basis. We also aim to have training sessions and events related to online programming for programmers around the world. Apart from providing a platform for programming competitions, CodeChef also has various 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 judge accepts solutions in over 35+ programming languages. Online programming was 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 competitions 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 programming contests and the shorter format Cook-off programming contests. Put yourself up for recognition and win great prizes. Prizes worth up to Rs.20,000 and $700 are up for grabs every month along with lots more CodeChef goodies.

Discuss

Are you new to computer programming? Do you need help with algorithms? Then be part of CodeChefs Forums and interact with all our programmers love helping out other programmers and share their ideas.

CodeChef Community

As part of our Educational initiative, we give institutes the opportunity to associate with CodeChef in the form of Campus Chapters. Hosting online programming competitions is not the only feature on CodeChef. Be a part of the CodeChef community through CodeChef meetups and techtalks. You can also host a programming contest for your institute on CodeChef and be a guest author on our blog.

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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CONTEST ENDED.

RESULTS:

RECENT ACTIVITY:

RECENT COMMENTS FOR THIS SECTION: