#include <stdio.h>
#include <stdlib.h>
#define maxsize 100
#define m 6
#define n 8
typedef struct
{
    int x;
    int y;
    int d;
} datatype;
typedef struct
{
    datatype data[maxsize];
    int top;
} seqstack;

typedef struct
{
    int x;
    int y;
} item;
seqstack* init (seqstack*l)
{
    l=(seqstack*)malloc(sizeof(seqstack));
    l->top=-1;
    return l;
}
void push_stack(seqstack*s,datatype temp)
{

    if(s->top!=maxsize-1)
    {
        s->top++;
        s->data[s->top].x=temp.x;
        s->data[s->top].y=temp.y;
        s->data[s->top].d=temp.d;
    }

}
void pop_stack(seqstack*s,datatype* temp)
{
    if(s->top!=-1)
    {
        temp->d=s->data[s->top].d;
        temp->y=s->data[s->top].y;
        temp->x=s->data[s->top].x;
        s->top--;
    }
}
void path(int maze[m+2][n+2],item move[8])
{
    seqstack *s;
    int k;
    int x,y,i,j,v;
    datatype temp;
    s=init(s);
    temp.x=1;
    temp.y=1;
    temp.d=-1;
    push_stack(s,temp);
    while(s->top!=-1)
    {
        pop_stack(s,&temp);
        x=temp.x;
        y=temp.y;
        v=temp.d+1;
        while(v<8)//若还有方向可走，八个方向遍历
        {
            i=x+move[v].x;
            j=y+move[v].y;//移动后新坐标点
            if(maze[i][j]==0)
            {
                temp.x=x;
                temp.y=y;
                temp.d=v;//保存前一个点的位置
                push_stack(s,temp);
                x=i;
                y=j;
                maze[x][y]=-1;//避免进入死循环，将走过的点做标记
                if(m==i&&n==j)
                {
                    temp.x=i;
                    temp.y=j;
                    temp.d=v;
                    push_stack(s,temp);//已到目标点，将新点即目标点入栈
                    for(k=0; k<=s->top; k++)
                    {
                        printf("\t(%d,%d)\t",s->data[k].x,s->data[k].y);
                        printf("\n");
                    }
                }
                else  v=0;
            }
            else v++;//换方向
        }
    }
}

int main()
{
    int maze[8][10]= {
                        {1,1,1,1,1,1,1,1,1,1},
                        {1,0,1,1,1,0,1,1,1,1},
                        {1,1,0,1,0,1,1,1,1,1},
                        {1,0,1,0,0,0,0,0,1,1},
                        {1,0,1,1,1,0,1,1,1,1},
                        {1,1,0,0,1,1,0,0,0,1},
                        {1,0,1,1,0,0,1,1,0,1},
                        {1,1,1,1,1,1,1,1,1,1}
                     };
    item move[8]= {{0,1},{1,1},{1,0},{1,-1},{0,-1},{-1,-1},{-1,0},{-1,1}};
    path(maze,move);
    return 0;
}