jiangly_fan's blog

Can I believe that round810 div1E is deliberate plagiarism?
By jiangly_fan, history, 2 years ago, In English

Compare https://www.acmicpc.net/problem/23679 and https://codeforces.net/contest/1710/problem/E, and you can find that there are crazy similarities in all of the legend, the input, the output, and the sample. Can the authors Rhodoks and zxyoi explain it?

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

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2 years ago, # |
← Rev. 2   Vote: I like it +41 Vote: I do not like it

Pretty sad that real Jiangly didn't solve E :(

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2 years ago, # |
  Vote: I like it +54 Vote: I do not like it

Btw how to open submissions on Baekjoon? I tried to copy the solution for almost $$$1$$$ hour, but I failed :(

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2 years ago, # |
  Vote: I like it -979 Vote: I do not like it

I'm sorry, I take full responsbility for this, please don't screw at Rhodokd, it totally my fault. Please screa at me.

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    2 years ago, # ^ |
    ← Rev. 2   Vote: I like it -984 Vote: I do not like it

    .

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      2 years ago, # ^ |
        Vote: I like it -924 Vote: I do not like it

      Please don't screw at Rhodoks, please. It's not his fault.

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        2 years ago, # ^ |
        ← Rev. 3   Vote: I like it -130 Vote: I do not like it
        The comment removed because of Codeforces rules violation
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          2 years ago, # ^ |
            Vote: I like it +212 Vote: I do not like it

          I really do not think we should attack people personally for such silly things. You community here are sometimes too fucked up and oversensitive about such things. If someone cheats at contest or copies a past problem to make a contest it does not make them a son of a bitch.It's just a virtual website. So calm down, just one unrated contest will not kill you. It may seem too tragic for you but it's just a one website's contest so do not consider it so serious to offend a person, I suggest.(I am talking about community, not just you)

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            2 years ago, # ^ |
              Vote: I like it +98 Vote: I do not like it

            Let's be serious. This is not just a ``silly thing", it's about the integrity as a person. Setting problems is a kind of creative work and in my opinion should be treated no less seriously as writing papers, and (academic) integrity remains a bottom line. This thing of copying problems is as serious as plagiarism in academia, assuming he did it deliberately.

            Yes, people may be over angry and make personal attacks not only because the problem is copied and maybe because of their own rating loss, and he probably doesn't deserve all those pouring anger. Nevertheless, what he deserves, at least in my opinion, is that he should never set any problem on Codeforces from now on, as a slightest punishment plagiarists would take in academia.

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

              As a problem setter, of course he did a bad thing, and it is logical not to give him a chance to set a contest next time. But that all was his career mistake, it has nothing to do with personal life. If those people faced him straight, would they be also so aggressive and offensive? I consider it a silly thing to touch him personally. I also find it too dumb when some people(I have seen some Indians) who were friends before start offending each other even saying that they are the shame of their parents and other bollshit (after they found that the other one have cheated at some contest). If someone makes such a career mistake or is such irresponsible it does not mean we should hate them.

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                2 years ago, # ^ |
                  Vote: I like it +10 Vote: I do not like it

                I agree with you partly. Personal insults are unconditionally unacceptable, and I will not try to talk people who personally insult others into being decent, as I consider those people irrational and not worthy to debate with.

                Apart from this, I think it is completely OK and we even should be angry about this thing, including despising the author who delibrately copies the solutions. This is not to be confused with personally attacking the author and being offensive.

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            2 years ago, # ^ |
              Vote: I like it +34 Vote: I do not like it

            Rich coming from you

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            2 years ago, # ^ |
              Vote: I like it 0 Vote: I do not like it

            C'mon. The dude said he's "son of a bitch". We just agree with him. WE ARE NOT ATTACKING HIM! WE ARE SUPPORTING HIM.

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        2 years ago, # ^ |
          Vote: I like it 0 Vote: I do not like it

        at least you apologized. Thanks for being honest in the end btw.

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      2 years ago, # ^ |
        Vote: I like it +366 Vote: I do not like it

      Just blame yourself, why you insult your mother?

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        2 years ago, # ^ |
          Vote: I like it -98 Vote: I do not like it

        This has nothing to do with his mother, please take back your vulgar comment, if you are a Chinese, SHAME on you

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        2 years ago, # ^ |
          Vote: I like it +23 Vote: I do not like it

        Really!!, what's the point of your comment Dude?

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          2 years ago, # ^ |
            Vote: I like it +5 Vote: I do not like it

          Let's assume he misread. happens.

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          2 years ago, # ^ |
            Vote: I like it +23 Vote: I do not like it

          No that one is fine, it's the rest of these that are just spam.

          Anyway, why is everyone assuming they are referring to their mother? The message said "I'm son of bitch"; it was not clarified which parent is supposed to be the "bitch".

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      2 years ago, # ^ |
        Vote: I like it +25 Vote: I do not like it

      It has nothing to with your mother, please don't say bad words to her.

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      2 years ago, # ^ |
        Vote: I like it +3 Vote: I do not like it

      Can't believe that you say your mom is a bitch.Dogs know how to protect their moms, but obviously you can't.Please delete this comment,i feel unworthy for your mother.

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2 years ago, # |
  Vote: I like it +35 Vote: I do not like it

I need to start googling problems instead of trying to actually solve them... (And yea this is clearly copied, quite unfortunate... :( )

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

I think it would be fair to make this round unrated. Of course, I may be interested in this, but I'm only saying this because it's an incredibly big mistake and this is the only way to fix it.

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2 years ago, # |
  Vote: I like it -25 Vote: I do not like it

nowadays we see many googleforces, This round was the biggest one!

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2 years ago, # |
  Vote: I like it -25 Vote: I do not like it

It was really bad round. I have never seen legendary grandmasters participate like this (ranked 180 etc.).

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2 years ago, # |
  Vote: I like it -23 Vote: I do not like it

Isn't this the work of the coordinator to detect such problems?

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    2 years ago, # ^ |
      Vote: I like it +108 Vote: I do not like it

    Actually no. Of course, coordinators reject problems which they know appeared before and even if they do not remember the exact problem from before they may just say that it is too standard and similar to existing problems. This is not the case for this problem. The problem itself is amazing and very non-standard. The only way for the coordinator to detect that it appeared before is by finding this exact problem, either from memory or by googling somehow. I participated in the original contest and it still took me time to remember where did I see it before, and that's only because from the standings I was sure that the problem must be "well-known in China".

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

Copying problems should be blamed a lot, I think. It's just a problem of credit!!!

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