话说，这样看这道题就非常简单，最多评绿吧， 蓝题不至于吧 by Genshin___Player @ 2023-08-14 15:46:23
@[Genshin___Player](/user/740684) 就是就是我暴力都过了 ~~还比并查集快~~ by lao_wang @ 2023-11-22 17:25:41