萌新刚学树套树，线段树套fhq，连样例都过不去QWQ

P3380 【模板】树套树

~~qndmx~~
by Ryo_Yamada @ 2019-12-18 19:25:28

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有句调试代码忘删了~
by 七里 @ 2019-12-18 19:25:43

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@[breeze末影](/user/242543) 帮我看看呗TAT
by 七里 @ 2019-12-18 19:26:09

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树套树看不懂啊QAQ
by Ryo_Yamada @ 2019-12-18 19:30:25

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@[breeze末影](/user/242543) 惊现同校大佬，就坐我后边hhh ~~我连非旋treap都不会，最多splay~~
by KellyFrog @ 2019-12-18 19:30:44

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@[longer_name](/user/95103) 我是同校菜鸡 `splay` `w(ﾟДﾟ)w`
by Ryo_Yamada @ 2019-12-18 19:32:30

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@[longer_name](/user/95103) @[breeze末影](/user/242543) 又RE 又WA
by 七里 @ 2019-12-18 19:58:51

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