结构体什么的最优美了

#include 
     
        #include 
      
           template
       
          struct Graph  {      int top;      struct Vertex{          int head;      }V[N];      struct Edge{          int v,next;      }E[M];      void init(){          memset(V,-1,sizeof(V));          top = 0;      }      void add_edge(int u,int v){          E[top].v = v;          E[top].next = V[u].head;          V[u].head = top++;      }  };    Graph<1000,10000> g;    int main()  {      return 0;  }
       
      
     

来自

大佬的博客