Results 1 to 11 of 11

Thread: a challenge for C experts

  1. #1
    Member Alexander Rhatushnyak's Avatar
    Join Date
    Oct 2007
    Location
    Canada
    Posts
    237
    Thanks
    39
    Thanked 92 Times in 48 Posts

    Thumbs up a challenge for C experts

    Are you a C expert?
    If so, please take this small amusing challenge!

    1. You dare to take the challenge by sending an email to
    gralic1 {at} gmail dot com. The e-mail must contain a link
    to your LinkedIn profile (and/or encode.su profile) and the following statement:
    "I agree not to disclose neither the challenge details, in whole
    or in part, nor the results list details, in whole or in part."
    Also, you must state whether you want to get the results list
    (in this case your name and result will be added to the list)
    or to avoid being listed, in this case the response will contain
    one of these three words: Less, Equal, Greater
    meaning you<record, you==record, you>record.
    In both cases you can disclose this word.

    2. The challenge description and comments are sent to you.
    Comments will state in which case you are welcomed to the club,
    including the LinkedIn group, http://www.linkedin.com/groups?gid=4264441
    Your have 24 hours to complete the challenge and respond.
    Though an ultimate C expert can complete it in no more than
    an hour, it's clear that you don't want to hurry and make mistakes.

    3. The response is sent to you within 24 hours (most likely much less).
    It's either a word or the list with your name and result added.
    Only members can view the results list:
    you can always request it by e-mail, not more than once per week.
    Once you are in, and even if you aren't,
    you are welcome to invite your friends, acquaintances, and colleagues!
    Last edited by Alexander Rhatushnyak; 21st January 2012 at 23:43.

    This newsgroup is dedicated to image compression:
    http://linkedin.com/groups/Image-Compression-3363256

  2. #2
    Member
    Join Date
    Jun 2009
    Location
    Kraków, Poland
    Posts
    1,474
    Thanks
    26
    Thanked 121 Times in 95 Posts
    Could you tell if it's strictly about knowing C low-level language tricks or it's about some high-level clever algorithms?

  3. #3
    Member Alexander Rhatushnyak's Avatar
    Join Date
    Oct 2007
    Location
    Canada
    Posts
    237
    Thanks
    39
    Thanked 92 Times in 48 Posts
    It's both, but you can complete each half from scratch in 30 minutes or so
    if you have a few years of experience with C.
    I'd say it's also about experimenting.
    Last edited by Alexander Rhatushnyak; 22nd January 2012 at 03:07.

    This newsgroup is dedicated to image compression:
    http://linkedin.com/groups/Image-Compression-3363256

  4. #4
    Member Alexander Rhatushnyak's Avatar
    Join Date
    Oct 2007
    Location
    Canada
    Posts
    237
    Thanks
    39
    Thanked 92 Times in 48 Posts

    Thumbs up

    The record was improved today.
    Now I am pretty sure even super-experts like Matt M and Eugene S
    won't be able to beat the current record
    Last edited by Alexander Rhatushnyak; 23rd January 2012 at 23:00.

    This newsgroup is dedicated to image compression:
    http://linkedin.com/groups/Image-Compression-3363256

  5. #5
    Member biject.bwts's Avatar
    Join Date
    Jun 2008
    Location
    texas
    Posts
    449
    Thanks
    23
    Thanked 14 Times in 10 Posts
    Maybe they don't want to. Why would anyone

    "I agree not to disclose neither the challenge details, in whole
    or in part, nor the results list details, in whole or in part."

    subject them selves to that for no reason?

  6. #6
    Member
    Join Date
    Jun 2009
    Location
    Kraków, Poland
    Posts
    1,474
    Thanks
    26
    Thanked 121 Times in 95 Posts
    David:
    Are you paranoid? Those are standard rules for competitions, especially time limited ones. How would you filter out experts if you allow people to communicate about competition details?

  7. #7
    Member m^2's Avatar
    Join Date
    Sep 2008
    Location
    Ślůnsk, PL
    Posts
    1,611
    Thanks
    30
    Thanked 65 Times in 47 Posts
    I also didn't like the rules and this was a major reason not to take part. I don't know what are your standards, Piotr, but I'm totally with Dave here.

    I don't know what do you mean by:
    How would you filter out experts if you allow people to communicate about competition details?
    Filter out? I thought the challenge was meant for experts.
    Anyway, I don't see what communication has with filtering people.

  8. #8
    Member
    Join Date
    Jun 2009
    Location
    Kraków, Poland
    Posts
    1,474
    Thanks
    26
    Thanked 121 Times in 95 Posts
    Sorry for my English :P I've meant "select" or smth like that.

    Anyway, I don't see what communication has with filtering people.
    Well, if someone discloses the details, then people have much more than 24 hours to complete the test. I would be equal to leaking exam questions long before the exam starts.

    As to results list - revealing someone's bad result could be amusing for him. Of course he may not care, but Alex opted for simple rules

    I hope that I will not break the rules if I say that the challenge is some classical problem with weird technicalities added. I think there's nothing to be proud/ excited about except being invited to the group and/ or beating the record. But either situations are allowed to be revealed. And of course: completing the challenge independently.

    For me the challenge was rather relaxing. No serious preparation was needed. I encourage you to take the challenge

    BTW:
    How to get into Data compression LinkedIn group? :]
    Last edited by Piotr Tarsa; 24th January 2012 at 22:16.

  9. #9
    Member m^2's Avatar
    Join Date
    Sep 2008
    Location
    Ślůnsk, PL
    Posts
    1,611
    Thanks
    30
    Thanked 65 Times in 47 Posts
    Oh, I understand now.
    Normally you deal with it by first making a list of participants and sending the test data to them all at the same time.
    Otherwise one can first take part under a fake name and a couple of days later, with a well prepared solution, using the real identity.

  10. #10
    Expert
    Matt Mahoney's Avatar
    Join Date
    May 2008
    Location
    Melbourne, Florida, USA
    Posts
    3,255
    Thanks
    306
    Thanked 779 Times in 486 Posts
    Yeah, If the contest and results are secret, then what's the point? Maybe you could sponsor a contest like http://acm.tju.edu.cn/toj/
    There are usually several timed contests going on at any one time from a database of thousands of problems. You can submit your programs in several different languages.

  11. #11
    Member Alexander Rhatushnyak's Avatar
    Join Date
    Oct 2007
    Location
    Canada
    Posts
    237
    Thanks
    39
    Thanked 92 Times in 48 Posts
    Quote Originally Posted by Matt Mahoney View Post
    what's the point?
    Quote Originally Posted by biject.bwts View Post
    for no reason?
    For experience, skills training and testing. For fun!

    This newsgroup is dedicated to image compression:
    http://linkedin.com/groups/Image-Compression-3363256

Similar Threads

  1. Calgary challenge
    By Matt Mahoney in forum Data Compression
    Replies: 6
    Last Post: 12th September 2010, 02:45

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •