atcoder_official's blog

Rule Changes in ABC,ARC,AGC（2026, October）
By atcoder_official, history, 5 hours ago, In English

Original Post on AtCoder

We have updated the generative‑AI rules in ABC,ARC,and AGC. In addition to this, we explicitly prohibit code obfuscation.

Rules

For the full rules, please see:

Changes to the Rules

  • If you want to use code created by generative AI during a contest, you should publish the code before the contest begins and include the URL in your submission.
  • Code obfuscation is now explicitly prohibited.

For the detailed diff, please see this.

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4 hours ago, hide # |
 
Vote: I like it 0 Vote: I do not like it

I have a quick question. Currently, my solution structure is like this:

  • main solution, written by me during the contest
  • URL to my library
  • parts of my library that I use, minimized (I think it is fair to say they are obfuscated, though not for the purpose of obfuscating)

Will this be considered against new rules? My library, of course, contains a non-minimized version of the code (even including some comments)

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    3 hours ago, hide # ^ |
     
    Vote: I like it 0 Vote: I do not like it

    No that's not a violation.

    It's hard to define "obfuscation" rigorously, but minimizing the library code doesn't count as obfuscation.

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