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by ycxDream @ 2023-07-03 21:46:26
已过, 谢谢, dfs()函数初值错了, bel函数存的是原点的下标而不是dfn[]的值, 所以dfs应该是 dfs(0, 0), 但建议将点都加一,要不很容易出错!!!
by Nogtade @ 2023-07-03 21:58:52
@ Nogtade ,谢谢哥哥的谆谆教诲,差点就错了,还好有哥哥的及时指正,祝哥哥 NOIP rp++
by B612Dusk @ 2023-09-24 19:54:14
@[Nogtade](/user/481735)
by B612Dusk @ 2023-09-24 19:54:37