相关疑难解决方法(0)

#include<stdio.h>
#include<stdlib.h>
#define GREY 1
#define BLACK 0
#define WHITE 2
typedef struct node * graph;
typedef struct stack * snode;

graph cnode(int data);          //cnode is to create a node for graph
void cgraph(void);
struct node {
        int data, color;
        struct node *LEFT, *RIGHT, *TOP, *DOWN;
};//this structure defines a node of the graph

struct stack {
struct stack *priv;
struct cgraph *graph_node;
};// this is to define a structure which should hold node of a structure

    extern snode sroot; …