Kareem_Elgoker's blog

Plagiarism (Skiped solution) Mistake
By Kareem_Elgoker, history, 27 hours ago, In English

I've got this message in the morning this day :

Attention!

Your solution 274855834 for the problem 1999F significantly coincides with solutions Kareem_Elgoker/274855834, Eyad_Abd_El-Mohsen/274908131. Such a coincidence is a clear rules violation. Note that unintentional leakage is also a violation. For example, do not use ideone.com with the default settings (public access to your code). If you have conclusive evidence that a coincidence has occurred due to the use of a common source published before the competition, write a comment to post about the round with all the details. More information can be found at http://mirror.codeforces.com/blog/entry/8790. Such violation of the rules may be the reason for blocking your account or other penalties. In case of repeated violations, your account may be blocked.

My code : 274855834 His code : 274908131

We have used a pre-published combinatorics template from Usaco : the link for the template, you can find the template code after -> Method 2: Factorial Definition (Modular Inverses) — $$$\mathcal{O}(n + \log MOD)$$$

Also there is a proof that I don't cheat in this problem

I made a screencast for this contest and had uploaded it on youtube : https://youtu.be/whG44e-HVuc?si=e0kzzTJ_AvgphR10

SlavicG, flamestorm, mesanu, MikeMirzayanov

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27 hours ago, # |
  Vote: I like it -18 Vote: I do not like it

Support.

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27 hours ago, # |
  Vote: I like it -13 Vote: I do not like it

Agreed!

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27 hours ago, # |
  Vote: I like it -15 Vote: I do not like it

Support

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27 hours ago, # |
  Vote: I like it -13 Vote: I do not like it

Codeforces has been floccinaucinihilipilification

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27 hours ago, # |
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this is why you should make your own templates...

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    27 hours ago, # ^ |
      Vote: I like it -26 Vote: I do not like it

    Tell'em

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    27 hours ago, # ^ |
      Vote: I like it +18 Vote: I do not like it

    And what if someone uses my templates in upcoming contests??

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      24 hours ago, # ^ |
      ← Rev. 2   Vote: I like it +7 Vote: I do not like it

      unless you publish your templates it's unlikely someone is just gonna look at your submissions and decide to use your templates instead of the hundreds of well-known templates already out there...

      obviously using public templates is allowed and you should report false positives in the plagiarism detection, but this way it is just more convenient and you probably won't have to deal with that.

      Plus, it feels nice to use your own code.

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        16 hours ago, # ^ |
          Vote: I like it +8 Vote: I do not like it

        Actually, alot of my friends use some of my codes instead of writing templates themselves, sometimes we even study together and write a template together to use.

        Also, sometimes I reuse the same logic/code as people whom I have seen their solutions on problems I was stuck on.

        So, this really happens although its not very frequent

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    27 hours ago, # ^ |
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    love u houshou marine :3

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    18 hours ago, # ^ |
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    I literally spent a day to create my custom template in Java.

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27 hours ago, # |
  Vote: I like it -8 Vote: I do not like it

Support SlavicG

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26 hours ago, # |
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support

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26 hours ago, # |
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Support

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26 hours ago, # |
← Rev. 2   Vote: I like it -6 Vote: I do not like it

Support

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26 hours ago, # |
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support :)

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26 hours ago, # |
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Support.

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26 hours ago, # |
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Support

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26 hours ago, # |
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Support

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25 hours ago, # |
  Vote: I like it -9 Vote: I do not like it

Support <3 , Maybe iam the reason.

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25 hours ago, # |
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Support

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25 hours ago, # |
  Vote: I like it +9 Vote: I do not like it

I think egyptians should stop spamming. You are defending 2 guys from the same university and they are probably friends, is it a coincidence?.

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25 hours ago, # |
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Support

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24 hours ago, # |
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justice_for_Eljoker

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20 hours ago, # |
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All support

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20 hours ago, # |
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Support

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20 hours ago, # |
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All support, kareem

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19 hours ago, # |
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na i think ur capping

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16 hours ago, # |
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All support

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16 hours ago, # |
← Rev. 3   Vote: I like it +36 Vote: I do not like it

I am gonna try be objective here. The plag checker can't be blamed. Templates are identical and yes, it is pre-published, but the solve() part is identical as well just very slight differences. It is an easy problem, with simple maths logic so implementations shouldn't differ a lot.

Being friends from same university (as apparent in profiles and teams) raises suspicions also, but I think the screencast is a good proof it was a coincidence.

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11 hours ago, # |
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Support u brother

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10 hours ago, # |
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Support

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7 hours ago, # |
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Support

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6 hours ago, # |
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the same problem with me I don’t know why all problems is skipped ،Even though I didn't cheat.

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