我勒个烧钢，你要表达什么
by tin_ingot @ 2024-05-06 21:11:56
并查集先人
by fedoralxy @ 2024-05-06 23:24:41
@[somoh](/user/1190135) https://www.luogu.com.cn/article/9sxilb3x
by haohaohaohaohao @ 2024-08-31 20:40:39
@[tin_ingot](/user/553188) 可能是在玩抽象吧
by somoh @ 2024-08-31 20:41:57