CheaterKiller's blog

To admins (cheater report)
By CheaterKiller, history, 8 years ago, In English

Hello everyone, I want to report 2 cheaters today.

2 days ago there was CF Round #395 Div2. I participated in contest also, problems were really good. Let's look standings. Hmm, good, 3 people solved all problems, 2 of them are Chinese. ljh2000 and MashiroSky. Ok, I looked their profiles, saw that they are living in same place, studying in same school. Hmm, it doesn't like coincidence. Then I looked their solutions.

Solutions for problem A: ljh2000's solution, and MashiroSky's solution. Looks similar, but it's easy problem, most peoples solutions looks same.

Solutions for problem B: ljh2000's solution, MashiroSky's solution. Hmm, looks similar, but it was easy also, let's see other solutions.

Solutions for problem C: ljh2000's solution and MashiroSky's solution. Yeah, do you see functions? Struct node with "tag" variable, same dfs function, same build function, same query function, same solve function and some of them wrote work function, and other one wrote things in work function in main. THEY'RE CHEATING HARD!!! How Codeforces couldn't catch this?

You can look other submissions too, they are same, but name of some variables changed, cheating like children...

When I see cheaters, I'm feeling sad for people who solved solutions legally, for example squaredog solved all problems too, but he couldn't be first reason of cheaters...

UPD BONUS CHEATERS: See 6th and 7th places there. Same story..

Sorry for poor English.

  • Vote: I like it
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  • Vote: I do not like it

Comments Comments (16)
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8 years ago, # |
← Rev. 2   Vote: I like it +43 Vote: I do not like it

Seems like squaredog registered himself 35 mins ago :P and reported cheating!

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    8 years ago, # ^ |
      Vote: I like it -10 Vote: I do not like it

    lol :D

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    8 years ago, # ^ |
      Vote: I like it +4 Vote: I do not like it

    I'm not squaredog really, I saw many cheaters like that and I couldn't stay calm. If I find other cheaters, I will post.

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      8 years ago, # ^ |
        Vote: I like it -18 Vote: I do not like it

      Dude i don't know how good you are at competitive programming etc etc to waste your time over these fools.. But seriously how does it even matter!! Loss is of the cheaters itself unless prizes are being distributed for the contest :D then the cheaters should be banned! Peace :)

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      8 years ago, # ^ |
      ← Rev. 2   Vote: I like it +18 Vote: I do not like it

      their code looks reasonably the same, but I dont understand, if you are good enough to solve F, why do u even need to cheat for A and B? isnt it faster to do it on your own than copying and changing?

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        8 years ago, # ^ |
          Vote: I like it +1 Vote: I do not like it

        Maybe some of accounts is real and other one is him fake account?

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8 years ago, # |
  Vote: I like it +29 Vote: I do not like it

If you make submission like this, no one will suspect from you :P .

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8 years ago, # |
  Vote: I like it -16 Vote: I do not like it

To be honest,in China,many people write segment tree like that. If you just see the things in your way,you just make others unhappy. Why not improve your strength instead of just wasting your time on the meaningless things?

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    8 years ago, # ^ |
      Vote: I like it -19 Vote: I do not like it

    Cheating is strength, reporting cheaters is meaningless. Is this your logic?

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8 years ago, # |
  Vote: I like it -6 Vote: I do not like it

I have known the situation by reading the reply on the home page,you must haven't read the reply by ljh2000.If you have read it,you may not say like that. Anyhow,if you didn't know it at all,I think you shouldn't abuse others. If you think when they all solved the difficult problem div2 E but they come from the same city,it's an imprudent act,I'm sorry to tell you that div2 E is the same as a problem which is published in some websites.As you know,if the code was written and published/distributed before the start of the round,it can't be seen as cheating. We even did this in an contest,because that problem in Chinese websites has been solved by many people... Also,many people in China wrote dfs and segment tree in that style. We are looking forward to studying more knowledge from the test and we all like to solve the interesting and chanllenging problems.We enjoy it and love it. Maybe all people attended the contest wishes to enhance their strength by learning and thinking deeply.Why not concentrate on your study instead of abusing others?

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    8 years ago, # ^ |
      Vote: I like it -8 Vote: I do not like it

    To be honest! They were cheating!!!! You can see it by comparing the codes by compare tool of Codeforces. The cheating is clear when you consider the different between the code. Actually we see the different of the codes (like problem C) in some variables with meaningless names like PPPP or YYYY!!!!

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8 years ago, # |
  Vote: I like it +63 Vote: I do not like it

Don't know why so many downvotes, these guys are indeed cheaters. first renamed to FFir, next to NXT, pre to ppppp, yan to YYYYY, etc. D and E are also obvious copies with renamed variables.

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    8 years ago, # ^ |
      Vote: I like it +40 Vote: I do not like it

    Yeah, I don't believe a normal person would name his variables as ppppp and YYYYY lol

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      8 years ago, # ^ |
        Vote: I like it +15 Vote: I do not like it

      I do that sometimes when i am out of variable... (though I don't think this is the case here)

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      8 years ago, # ^ |
        Vote: I like it +133 Vote: I do not like it

      Your username is "aaaaa"jack aaaaajack. Irony.

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8 years ago, # |
  Vote: I like it +136 Vote: I do not like it

I think they just decided to solve problems faster so they can have time to drink pivasik and watch memasiks. Don't be so envy, it's ok when people with true friends and priorities succeed in life. Sorry for my pure Inglish.

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