迷宫找出路代码

#include 
#include 

#define M 6		//迷宫的实际行
#define N 8		//迷宫的实际列
#define MAXSIZE 64	//栈大小

typedef struct
{
	int x;
	int y;
}item_t;

typedef struct
{
	int x;		//当前点的坐标
	int y;		
	int z;		//移动方向
}coord_t;

typedef struct
{
	int x[MAXSIZE-1];
	int y[MAXSIZE-1];
	int z[MAXSIZE-1];
	
	int top ;
}stack_t;

//迷宫数组
int maze[M+2][N+2] =
{//	  0   1   2   3   4   5   6   7   8   9		
	{ 1,  1,  1,  1,  1,  1,  1,  1,  1,  1 },//	0
	{ 1,  0,  1,  1,  1,  0,  1,  1,  1,  1 },//	1		
	{ 1,  1,  0,  1,  0,  1,  1,  1,  1,  1 },//	2
	{ 1,  0,  1,  0,  0,  0,  0,  0,  1,  1 },//	3
	{ 1,  0,  1,  1,  1,  0,  1,  1,  1,  1 },//	4
	{ 1,  1,  0,  0,  1,  1,  0,  0,  0,  1 },//	5
	{ 1,  0,  1,  1,  0,  0,  1,  1,  0,  1 },//	6
	{ 1,  1,  1,  1,  1,  1,  1,  1,  1,  1 } //	7
};

//移动方向
item_t move[8] = {{0,1},{1,1},{1,0},{1,-1},{0,-1},{-1,-1},{-1,0},{-1,1}};

stack_t* init_stack(void)
{
	stack_t* st = (stack_t *)malloc(sizeof(stack_t));
	if(st == NULL)
	{
		printf("malloc error\n");
		return NULL;
	}
	st->top = -1;
	
	return st;
}

int empty_stack(stack_t* st)
{
	if(st->top == -1)
		return 1;
	else
		return 0;
}

int full_stack(stack_t* st)
{
	if(st->top > MAXSIZE -1)
		return 1;
	else
		return 0;
}

int push_stack(stack_t* st, coord_t cor)
{
	if(full_stack(st))
	{
		printf("stack full.\n");
		return 0;	
	}
	
	st->top ++ ;	
	st->x[st->top] = cor.x ;
	st->y[st->top] = cor.y ;
	st->z[st->top] = cor.z ;
	
	return 1;
}

int pop_stack(stack_t* st, coord_t* cor)
{
	if(empty_stack(st))
	{
		printf("stack empty.\n");
		return 0;		
	}
	
	cor->x = st->x[st->top] ;
	cor->y = st->y[st->top] ;
	cor->z = st->z[st->top] ;	
	
	st->top-- ;
	return 1;
}

void loop_stack(stack_t* st)
{
	coord_t cor;
	printf("输出出栈的数据：\n");
	
	
	while(!empty_stack(st))
	{
		pop_stack(st, &cor);
		printf("x=%d y=%d z=%d\n",cor.x, cor.y, cor.z);		
	}
}

int main(void)
{
	int x,y,z,i,j;
	coord_t  cor;
	stack_t* st = init_stack() ;
	
	cor.x = 1;
	cor.y = 1;
	cor.z = -1;				//入口
	push_stack(st, cor);		//入栈
	
	printf("开始找路...\n");
	
	while(!empty_stack(st))		//如果栈非空
	{
		pop_stack(st, &cor);	//出栈 当前坐标
		x = cor.x;			
		y = cor.y;
		z = cor.z + 1;		//顺时针方向 试探
		
		while(z<8)
		{
			i = x + move[z].x;			//试探方向
			j = y + move[z].y;
			
			if(maze[i][j] == 0)		//如果有路
			{
				cor.x = x;			//保存上一个点的坐标
				cor.y = y;
				cor.z = z;		
				
				push_stack(st, cor);	
				
				x = i;				//
				y = j;
				
				maze[i][j] = -1;			//标记一下此处走过
				
				if((x==M) && (y==N))		//到达出口
				{
					cor.x = x;			//保存出口坐标退出
					cor.y = y;
					cor.z = z;
					push_stack(st, cor);
					goto loop;	
                		}
                		else
                    		z = 0;
			}
			else

			{
			 	z++ ;
			}

		}
	}
	
loop:	
	loop_stack(st);
	
	free(st);
	return 0;
}