Egor's blog

PSA: GitHub copilot may share your code during contest
By Egor, history, 21 month(s) ago, In English

During Codechef Starters 55 when I solved non-scoring problems I've got following helpful suggestion from copilot:

Seems oddly specific, right? So if you use copilot during contests you should disable following option:

  • Vote: I like it
  • +186
  • Vote: I do not like it

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21 month(s) ago, # |
  Vote: I like it +75 Vote: I do not like it

Maybe this problem was also copied from somewhere else?

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21 month(s) ago, # |
  Vote: I like it +64 Vote: I do not like it

Obviously, no proofs, just guesses, but I doubt it could do any real-time learning from others' code (and also I don't think somebody actually used Rust for this problem except you?).

I think what happened is the rust-helper, which you used, saved the problem sample (which has words "PERAIR", "ANY" and "NEW PHONE") as json to the first line of your solution file. And then copilot parsed it, and suggested. But still seems funny that it actually correctly guessed the permutation.

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    21 month(s) ago, # ^ |
      Vote: I like it 0 Vote: I do not like it

    Not exactly, I had to change Less and Greater

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21 month(s) ago, # |
  Vote: I like it -44 Vote: I do not like it

Now that is what we should call a notorious coPILOTence.

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21 month(s) ago, # |
  Vote: I like it +17 Vote: I do not like it

Reminds me of https://xkcd.com/2169/

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