这题肯定用不了树剖求LCA吧?毕竟是动态建树

P2597 [ZJOI2012] 灾难

应该是的?
by crimson000 @ 2023-11-15 11:16:25


嗯~ o(* ̄▽ ̄*)o
by Llx2022 @ 2023-11-15 11:16:56


@[Llx2022](/user/828664) 是的,这种情况只能用倍增
by wxh666 @ 2023-11-15 16:40:29


对<(^-^)>
by Llx2022 @ 2023-11-15 16:48:03


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