Amao_Fox's blog

By Amao_Fox, history, 8 months ago, In English

I noticed Sparkle_Twilight for a long time, when I was not a problem solver at all. I just randomly opened some "good problems" from a problem list, clicked the status button, switched to sort by code length, and bam, Sparkle_Twilight.

I was wondering how could a single unrated account pass so many problem, you can find this accound easily on the ranking of problemset and it's on top2. And I watched their submissions, wow, obviously crawled from others' code. All passed at once (except some CEs) with different styles even languages. So I confirmed that this is just a shit bot account hanging on the leaderboard.

So I want to know, why there is Sparkle_Twilight? Even if bots are allowed on Codeforces (of course there are other bots), but what's its original purpose? It's not a remote judge bot like vjudebot or luogubot, it only does exercises without positive feedback. Is it just to look good on the leaderboard?

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

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

The remote judge bots don't need a formal username, maybe Sparkle_Twilight is a remote judge bot.

remote judge relies to cookie(JESSIONID) not username.

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    8 months ago, hide # ^ |
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    Vote: I like it -21 Vote: I do not like it

    emmm, Sparkle_Twilight isn't a remote judge bot.

    Mike should ban these bots(like Sparkle_Twilight), there are wasting CF judge resources.

    Without them, all submissions will have a better judge speed.

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

      I think remote judge bot shouldn't be banned but limited, and of course methods like remote using our own account might be a better solution (like what Luogu did).

      It's just a way to, well according to my coach, prevent us from easily visit the internet and steal solutions, so he was trying to build his own remote submit bot but failed.

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    7 months ago, hide # ^ |
     
    Vote: I like it +6 Vote: I do not like it

    Have you ever seen a remote judge bot who can get AC at their FIRST submission on EVERY problem with the almost SHORTEST code at that time, and don't resubmit when they chose a wrong language?