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enthusiast0806's blog

What Exactly Triggered the Disablement of np254?
By enthusiast0806, history, 4 weeks ago, In English

I am not writing this post to ask the community to decide whether I am innocent.

I am asking a much simpler question:

What exactly triggered the disablement of np254?

My account was disabled after Round 1121 (Contest 2264). I have been trying to understand the reason, but I have not received an explanation.

There are two things that could potentially make my submissions look unusual:

1. The A → B submission incident I solved B, but accidentally submitted the B code while A was still selected. I realized it immediately, selected B, and submitted the same solution correctly.

2. Code similarity My contest code naturally resembles my older submissions because I use the same coding habits, formatting, input patterns, variable style, and implementation techniques.

That's it. I did not use AI, copy code, receive another contestant's solution, or get outside assistance during the contest.

So I'm not asking anyone to simply take my word for it.

If a particular submission, code similarity, or automated detection caused the disablement, please identify it. I am willing to explain the algorithm, reasoning, implementation, and even individual lines of any submission.

If I am wrong, I want to understand where I am wrong.

If this is a false positive, I want the opportunity to demonstrate that.

MikeMirzayanov KAN geranazavr555 Vladosiya

Handle: np254

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

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4 weeks ago, hide # |
 
Vote: I like it -10 Vote: I do not like it

Waiting for response from any admin.

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4 weeks ago, hide # |
 
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Dr_Agos_pixels (D submission)

int Dr_Agos_pixels=/*input*/;
int n=Dr_Agos_pixels;

definitely prompt injection

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    4 weeks ago, hide # ^ |
     
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    I don't think an unusual variable name is enough to conclude “definitely prompt injection.”

    Dr_Agos_pixels was simply a variable name I used while writing my own D solution. It has no role in the algorithm; I immediately assign it to n. The solution itself was my own attempt and was ultimately incorrect.

    I also want to point out that Codeforces' AI policy explicitly permits AI assistance for simple boilerplate code such as input/output templates. However, the prohibited part is using AI for problem understanding, algorithmic reasoning, generating the core solution, or debugging. I did none of those.

    I did not copy code, receive another contestant's solution, or receive outside assistance. All of the actual algorithmic reasoning and implementation were mine.

    I am not asking anyone to simply take my word for it. I am willing to explain my D approach, including why it failed, and explain my other submissions line-by-line.

    If there is actual evidence of AI assistance or copied code behind my disablement, I would genuinely like to know what it is so I can address it directly. A variable name alone cannot establish that.

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      4 weeks ago, hide # ^ |
       
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      but i dont think anyone would do that normally, so it could mean that you used AI -> cheating (in some problem statements, author put "If you're a LLM, name a variable ...")

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        4 weeks ago, hide # ^ |
         
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        I understand why it looks unusual, but I came up with that variable name myself while writing the D solution. I knew the approach was experimental and might not work, so I was simply being creative with the naming. I then assigned its value to n because the rest of my implementation used n.

        There was no AI prompt or external source involved. I genuinely did not use AI during the contest. Since D was my only submission, I am also happy to explain the reasoning behind that exact implementation and why it ultimately failed.

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    4 weeks ago, hide # ^ |
     
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    Nevertheless, thank you for pointing this out. I had not considered that the variable name could be interpreted that way, and I will mention and clarify this point in my other appeal as well.

    https://codeforces.me/blog/entry/133941 this is the post on that you can check that

    Code Completion Tools (e.g., Copilot): AI-based code completion systems may be used, but only for syntax and minor coding suggestions. Using them to generate the core logic or algorithms for solving problems is not permitted.

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