C++数据结构关于栈迷宫求解示例

目录

• 一、实验目的
• 二、预备知识
• 三、实验内容
• 定义一些代码：

• 定义类

• 1.当入口和终点一样时：
• 2.终点是可以到达的路径
• 3.出口不通的情况

#include<iostream>
#include<cstdlib>
#define STACK_INIT_SIZE 100
#define STACKINCREMENT 10
typedef struct {//栈元素类型
	int x;//坐标
	int y;//坐标
	int di;//方向
}position;
using namespace std;
typedef struct {//栈
	position *base;
	position *top;
	int stacksize;
}Stack;
/*************************迷宫**********************************/
int Maze[10][10] = {//迷宫 Maze（妹子）原型如下图：1表示路不通0表示可以通过。
//   0 1 2 3 4 5 6 7 8 9 
	{1,1,1,1,1,1,1,1,1,1},//0
	{1,0,0,1,0,0,0,1,0,1},//1
	{1,0,0,1,0,0,0,1,0,1},//2
	{1,0,0,0,0,1,1,0,0,1},//3
	{1,0,1,1,1,0,0,0,0,1},//4
	{1,0,0,0,1,0,0,0,0,1},//5
	{1,0,1,0,0,0,1,0,0,1},//6
	{1,0,1,1,1,0,1,1,0,1},//7
	{1,1,0,0,0,0,0,0,0,1},//8
	{1,1,1,1,1,1,1,1,1,1} //9
};

class boos {//创建了一个角色类
private:
	Stack sq_stack;//栈
	position temp;
public:
	/******************************栈的基本方法*******************/
	void InitStack() {//创建栈
	bool StackEmpty()//判断是否空栈
	bool GetTop(position &temp)//获得栈顶
	bool Push(position &temp)//入
	bool Pop(position &temp)//出栈
	void free_Stack()//释放栈空间
/******************************走迷宫方法*******************/
	bool findMaze(int star_x, int star_y, int endr_x, int end_y) 
					//迷宫的入口和出口坐标
};

void InitStack() {//创建空的栈
		sq_stack.base = (position *)malloc(sizeof(Stack)*STACK_INIT_SIZE);
		if (!sq_stack.base) exit(-1);
		sq_stack.top = sq_stack.base;/*FHL*/
		sq_stack.stacksize = STACK_INIT_SIZE;
		cout << "栈创建成功" << endl;
	}
	bool StackEmpty() {判断是否空栈
		if (sq_stack.top == sq_stack.base)return 1;
		else 
			return 0;
	}
	bool GetTop(position &temp) {//得到栈顶元素
		if (StackEmpty())return false;
		 temp= *(sq_stack.top-1);
		 return true;
	}
	bool Push(position &temp){//入栈/*FHL*/
		if (sq_stack.top - sq_stack.base >= sq_stack.stacksize) {
			sq_stack.base = (position*)realloc(sq_stack.base
		 sizeof(position)*(sq_stack.stacksize + STACKINCREMENT));
			if(!sq_stack.base) exit(-1);/*FHL*/
			sq_stack.top = sq_stack.base + sq_stack.stacksize;
			sq_stack.stacksize += STACKINCREMENT;
		}
		*sq_stack.top = temp;
		sq_stack.top++;
		return true;
	}
	bool Pop(position &temp) {//出栈
		if (StackEmpty())  return 0; 
		 sq_stack.top--;
		 temp = *sq_stack.top;
		return 1;
	}
	void free_Stack() {
		free(sq_stack.base);
	}

bool findMaze(int star_x, int star_y, int endr_x, int end_y) {//迷宫的入口和出口坐标
		int i, j, k = 0;//i j表示目前的坐标
		int tep_di,next_x,tep_y;//下一步的坐标
		bool flag;
		position fan_maze[200];
		InitStack();//先创建空栈
		temp.x = star_x, temp.y = star_y, temp.di - 1;//开始位置
		Push(temp);//入栈操作。/*FHL*/
		Maze[star_x][star_y]=-1;//-1表示走过；
		while (!StackEmpty()) {//栈不为空
			GetTop(temp);/*FHL*/
			 i = temp.x, j = temp.y , tep_di=temp.di;
			if (i == endr_x && j == end_y) {
				cout << "找到走出迷宫的路" << endl;
				k = 0;
				while (!StackEmpty()) {
					Pop(temp);
					fan_maze[k] = temp;
					k++;//k指向下一个被插入的位置；
				}
				cout <<"起点："<< "(" << fan_maze[k-1].x << ',' << fan_maze[k-1].y << ")->" << endl;
				int count = 1;
				for(k-=2;k>0;k--) {
					cout<<"(" << fan_maze[k].x <<','<< fan_maze[k].y<<")->";
					if (count % 3 == 0) cout << endl;
					count++;
				}
				cout  << "(" << fan_maze[0].x << ',' << fan_maze[0].y << ")" << "终点" << endl;//出口的位置
				free_Stack();//释放申请的堆空间
				return true;
			}/*FHL*/
			flag = 0;
			while (tep_di < 4 && !flag) {
				tep_di++;
				if (tep_di == 0){ next_x = i;	tep_y = j + 1;}
				else if (tep_di == 1) { next_x = i + 1;tep_y = j; }
				else if (tep_di == 2) { next_x = i;tep_y = j - 1; }
				else { next_x = i - 1; tep_y = j; }
				if( Maze[next_x][tep_y] == 0 ) flag = 1;
			}
				if(flag) {
					(sq_stack.top-1)->di = tep_di;//记录上次坐标走的方向。
					temp.x = next_x, temp.y = tep_y,temp.di=-1;
					Push(temp);//这次坐标入栈
					Maze[next_x][tep_y] = -1;//当前坐标标记为走过。
				}
				else {
					Pop(temp);
					Maze[temp.x][temp.y] = 0;
				}
		}/*FHL*/
		cout << "没有找到对应的出口" << endl;
		free_Stack();//释放申请的堆空间
		return false;
	}
};

int main() {
	boos L1;
	L1.findMaze(1,1,8,8);
	system("pause");/*FHL*/
	return 0;
}

int main() {
	boos L1;
	L1.findMaze(1,1,1,1);
	system("pause");
	return 0;
}

int main() {
	boos L1;
	L1.findMaze(1,1,8,8);
	system("pause");
	return 0;
}

int main() {
	boos L1;
	L1.findMaze(1,1,8,2);
	system("pause");
	return 0;
}

int main() {
	boos L1;
	L1.findMaze(1,1,9,9);
	system("pause");
	return 0;
}