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Tarjan && 圆方树
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概率期望
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Chapter 1 定义
?Chapter 1 定义 定义在有向图 $G=(V,E)$，不考虑反向边，记 $s$，$t$ 为源点和汇点 $\forall edge(u,v) \in E$，均有$;c(u,v)$，为这条边的流量上限，称为容量 注：$edge(u,v) \not... -
Chapter 6 费用流
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Chapter 4,5 最小割
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Chapter 2,3 最大流
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树
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组合数学
组合数学 包含基本推导，容斥，二项式反演等内容 杨辉三角相关 link ?结论 定义式： $$ \binom nk=\frac{n(n-1)\cdots(n-k+1)}{k(k-1)\cdots 1}=\frac{n!}{k!(n-k)!} $$ ... -
网络流
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Hello World
Welcome to Hexo ! This is your very first post. Check documentation for more info. If you get any problems when using Hexo, ...