As announced in the [Announcement Regarding ARC's Division System](https://atcoder.jp/posts/1365), ARC has been split into two types: Div. 1 and Div. 2. Among these, only Div. 2 will be subject to the [AtCoder Rules against Generative AI](https://info.atcoder.jp/entry/llm-rules-en), while Div. 1 will be exempt. Accordingly, we have made changes to the rule text. The main changes are as follows: - Replaced "ARC" with "ARC Div. 2" - Added specific examples For detailed differences, please check [here](https://github.com/atcoder/rules/commit/2f45ffa39d33fbe15fe657adb0c026b83636ea06).