gholyo's blog

coincidence or someone is having fun with multiple alt accounts?
By gholyo, history, 10 months ago, In English

In today's contest, as I was searching for solutions, I stumbled upon this unique standings page. It is flooded with accounts bearing anime character names. Upon checking, I noticed that all these accounts share the same creation date, along with identical solutions and submissions, with slight variations. Note: unmark show unofficial

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10 months ago, # |
  Vote: I like it 0 Vote: I do not like it

Too many normie anime.

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10 months ago, # |
← Rev. 2   Vote: I like it +43 Vote: I do not like it
The list (39 total)

All of them passed task A,B,C,D without any penalty.

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10 months ago, # |
← Rev. 2   Vote: I like it +36 Vote: I do not like it
All the codes begin with...

and then some useless algorithm templates,

and a line which is the only line that solves the problem:

exec(decompress("something I can't understand"))

finally, some useless operations on a variable.

He must tried very hard to cheat. LMAO

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    10 months ago, # ^ |
    ← Rev. 2   Vote: I like it +14 Vote: I do not like it

    What a amazing cheat way that all the "useless templates" are different lol

    This let me think a way of having high rating:

    Create a base account and a lot of accounts. Use the base account to solve the problems normally. If you feel good, choose some accounts to submit the compressed solutions.

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      10 months ago, # ^ |
        Vote: I like it 0 Vote: I do not like it

      There should be a rule against obfuscating code

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10 months ago, # |
  Vote: I like it +39 Vote: I do not like it

Only cowards use alt accounts

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10 months ago, # |
  Vote: I like it +28 Vote: I do not like it

Looks like a cheater is trying really hard to not get caught and he succeeded this time....

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    10 months ago, # ^ |
      Vote: I like it +8 Vote: I do not like it

    it's not only this time, he participated in 4 to 6 previous contests and he passed

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    10 months ago, # ^ |
    ← Rev. 2   Vote: I like it +6 Vote: I do not like it

    But as this post is sent, I think he (or they?) will be caught soon.

    Maybe @omeganot and @sum (two authors) will be useful.

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      10 months ago, # ^ |
        Vote: I like it +21 Vote: I do not like it

      No clue, maybe mentioning mike will do MikeMirzayanov

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      10 months ago, # ^ |
        Vote: I like it +26 Vote: I do not like it

      unfortunately i dont think authors are able to do anything about this. I think only Mike or admins can remove these cheaters :/

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10 months ago, # |
  Vote: I like it 0 Vote: I do not like it

CPers and their connection with anime is very deep

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10 months ago, # |
  Vote: I like it +19 Vote: I do not like it

About 70 down votes, dude is abusing his alt accounts lol

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10 months ago, # |
  Vote: I like it +5 Vote: I do not like it

what's the point of even putting in that much effort just for an ego boost?

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10 months ago, # |
← Rev. 3   Vote: I like it +5 Vote: I do not like it

Seriously, will this case just be passed over? There are 39 bots taking rank sub 500. Anyone can see these are obviously bot accounts by their submission time, account creation date, and code. Since they are so many, even now it affects the scoreboard and I wonder how many bot accounts I'll have to fight if these kinds of cases just get passed over.

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    10 months ago, # ^ |
      Vote: I like it 0 Vote: I do not like it

    Probably it will not pass, i can't remember when was the last time they made a roll back, but i expect a roll back that clears the leaderboard tonight or after the edu tomorrow, just be patient.

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10 months ago, # |
  Vote: I like it +5 Vote: I do not like it

It's very easy to find who the culprit is, actually. By taking what is inside the exec function in their codes (the decompress("a bunch of bullshit") thing), we get the source code that got processed by some sort of program and mass submitted in the bot accounts. For example, here's the source code for D

Spoiler

Now we just gotta have a program search for this on the contest submissions and find the author of the code.

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10 months ago, # |
  Vote: I like it +16 Vote: I do not like it

MikeMirzayanov, rating had rolled back recently, however, these accounts aren't banned yet. Please do something.

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