ctj：

https://www.luogu.com.cn/record/102349527 --> https://www.luogu.com.cn/blog/Thinking/solution-p1173

https://www.luogu.com.cn/record/102263579 --> https://www.luogu.com.cn/blog/dedicatus545/solution-p3272

https://www.luogu.com.cn/record/102263295 --> https://www.luogu.com.cn/blog/EternalAlexander/solution-p1713

辱骂&wyy帖子：

https://www.luogu.com.cn/discuss/573819?page=3

https://www.luogu.com.cn/discuss/573354