摘要：struct MCMF { struct edge { int to, cap, cost, rev; //edge() {} //edge(int to, int _cap, int _cost, int _rev) : to(to), cap(_cap), cost(_cost), rev(_rev) {} }; int V, H[maxn + 5], dis[maxn + 5], PreV[ 阅读全文

摘要：问题 E: Plug It In! 题目描述 Adam just moved into his new apartment and simply placed everything into it at random. This means in particular that he did not 阅读全文

摘要：链式前向星与vector的两种邻接表建图 vector建图简单直观，加边灵活，但占用内存大。 链式前向星建图比较容易操作。 链式前向星 vector 阅读全文

摘要：int linker[N*2]; bool used[N*2]; vectormp[N]; bool dfs(int u) { int len=mp[u].size(); for(int i=0;i<len;i++) { int v=mp[u][i]; if(!used[v]) { used[v]=t... 阅读全文