70分RE求助

P3384 【模板】重链剖分/树链剖分

@[ljh6jz](/user/157147) ```cpp ll lazy[N]; ``
by RainFestival @ 2021-11-05 16:24:26


解决了,谢谢 @[RainFestival](/user/36957)
by ljh6jz @ 2021-11-05 17:53:13


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