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生成函数入门 | K-D Space #39

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EndSaH opened this issue Jun 6, 2020 · 2 comments
Open

生成函数入门 | K-D Space #39

EndSaH opened this issue Jun 6, 2020 · 2 comments
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6fb92c080d0f6fff469ebfdce8c0395e Gitalk

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@EndSaH
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EndSaH commented Jun 6, 2020

https://endsah.tk/blog/%E7%94%9F%E6%88%90%E5%87%BD%E6%95%B0%E5%85%A5%E9%97%A8/

比较严谨的东西就略过了，这里讲的主要是做题要用到的一些技巧。 这里个人认为生成函数的卷积本质上都是枚举了划分，有标号则需要组合数来分配标号（若这些物品本质一样，需要除掉阶乘），无标号不管。
@hk-cnyali
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求更生成树那题结论的证明

@EndSaH
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EndSaH commented Jun 11, 2020

@hk-cnyali
求更生成树那题结论的证明

Prufer 序列的证明吗？OI-Wiki 上有实际上我也不会证

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