被虐的goshawk

#includeusing namespace std;const int maxn=650;const int INF=0x3f3f3f3f;struct Edge{ int from,to,cap,flow;};struct Dinic{ int n,m,s,t; vectoredges; vectorG[maxn]; bool vis[ma

#includeusing namespace std;struct Edge{ int from,to,cap,flow;};const int maxn=650;const int INF=0x3f3f3f3f;struct ISAP{ int n,m,s,t;//结点数，边数（包括反向弧），源点编号，汇点编号 vectoredges; vector