June 2011 Challenge Winners!

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Hi CodeCheffers,

The June Challenge 2011 is over!

The June contest saw some interesting participation in the first couple of days.  In the Indian rank list we have a tie for the 5th place between 4 people and 11th place between 14 people 🙂 and in the Global list we have a tie for the 14th place between 7 people. During the contest we had faced an xss attack on our site due to which we had to bring the site down for a few hours and extended the contest by a day. We are fully functional now. You can read more about the attack here.

Before we move on to the next section of the blog post, a special mention of the people who made this contest possible:

David Stolp, Tomaz Hocevar, Ivan Mistreanu and Rahul Gulati were the problem setters while  Shilp Gupta was the diligent tester of this month’s contest.

Lets look at some Statistics and then move on to see the final winners list.

Contest Statistics:

Length of Contest Unique Visitors Unique Participants Total Number of Submissions User who have solved at least one problem
11 days 653 9434 324
Country Total Participants Average Score per User
IN 450 0.62
Rest of World 203 1.67

Winners list for the June 2011 Contest:

India:

01. suhash (winner of prize money Rs. 12000)
02. Pulkit (winner of prize money Rs. 8000)
03. coders1122
04. Prunthaban K
05. Balakrishnan Varadarajan
05. Gagandeep Bhatia
05. Pradeep George Mathias
05. sushilnath
09. loonydmad
10. Gunjan Sharma
11. chakradarraju
11. deepangupta91
11. flying_ant
11. ??
11. kashyap_kumar
11. kaushik.mv
11. pikku
11. Surendra
11. root5
11. SIGSEV
11. smithinsu
11. sppraveen
11. theeporithirumugam
11. yash_coder

Global:

01.  gennady.korotkevich (winner of prize money $400)
02. hanshuai (winner of prize money $300)
03. Oleg
04. dumbear
05. shindo
06. pasin30055
07. gerald
08. nileshdalvi
09. qwaker00
10. alexey_enkov
10. gt
10. dzhulgakov
10. EgorK
10. orfest
10. s.max
10. wywcgs
10. xfastx

Congratulations to all.

If you haven’t yet checked out the editorials of the problems to this month’s contest please do so here.

We are running a 2.5 hours Cook-Off that is scheduled for 19th June 2011 at 21:30 IST

If there is anything that you would like to let us know then do comment on this blog post or send in an email tofeedback@codechef.com

Cheers,
Harsh Munshaw

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11 Replies to “June 2011 Challenge Winners!”

  1. I like the time span of 11 days that makes everyone find his suitable time to try for the problems ,
    But to avoid large number of ties I would suggest that except for the challenge problem there should be penalties for unsuccessful submissions say 0.01/0.02 but only till the score of the problem reaches some critical value say 0.5 .

    1. But this may lead to some bad situations 
      say u solved 4 problems and u have many penalities ! 
      total score of u = 2.5
      I solved 3 problems and mine is 2.9 😛
      so i will get a better rank than u !!
      Is this fair ? 

      1. I didn’t meant the actual parameters. Say, Penalties of 0.005 and critical value of 0.9 for a problem . Then  a user will have 20 attempts ( of course he can have furthur unsuccessful attempts but without penalties ) and in any case person solving more problems will have more marks.

          1. I don’t think its fair to assign different scores based on the number of unsuccessful attempts in a long contest but yes its a good idea to use it as a tie breaking criteria when it is tied on everything else.

          2. why total number of submissions ?? if you want to break the ties just consider the fastest solution. It will even motivate people to start solving earlier.

          3. Exactly. If unsuccessful attempts are taken into account, then people will create new ids to test there solutions first.

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