[Link](https://www.luogu.com.cn/blog/happy59/solution-p2766)
by Failure_Creator @ 2022-08-17 19:46:55
@[chen_zhe](/user/8457) @[小粉兔](/user/10703)
by Failure_Creator @ 2022-08-17 19:47:48
@[8atemak1r](/user/305121) @[haimo](/user/486677) 已撤下，感谢您的反馈
by 小粉兔 @ 2022-08-17 23:03:08