import java.util.*;
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import java.util.regex.*;
class MyPoint
{
public boolean visited=false;
public int parentRow=-1;
public int parentColumn=-1;
public int x;
public int y;
public MyPoint(){}
public MyPoint(int x,int y)
{
this.x=x;
this.y=y;
}
}
class Maze
{
String[][] maze;
final int WIDTH;
final int HEIGHT;
final int START_X=1;
final int START_Y=1;
final int END_X;
final int END_Y;
MyPoint[][] visited;
public Maze()
{
Scanner s=new Scanner(System.in);
WIDTH=s.nextInt();//输入迷宫宽度
END_Y=WIDTH-2;
HEIGHT=s.nextInt();//输入迷宫长度
END_X=HEIGHT-2;
maze=new String[HEIGHT][];
visited=new MyPoint[HEIGHT][];
s.nextLine();//清除输入的回车
for(int i=0;iHEIGHT;++i)//输入迷宫的每一行，每一行中的字符之间用空格隔开
{
String temp=s.nextLine();
maze[i]=temp.split("\\s+");
visited[i]=new MyPoint[WIDTH];
for(int j=0;jWIDTH;++j)
{
visited[i][j]=new MyPoint(i,j);
}
}
System.out.println("input finish.");
for(int i=0;iHEIGHT;++i)
{
System.out.println(Arrays.toString(maze[i]));
}
}
public boolean tomRun()
{
LinkedListMyPoint stack=new LinkedListMyPoint();
stack.push(visited[START_X][START_Y]);
visited[START_X][START_Y].visited=true;
boolean result=false;
while(!stack.isEmpty())
{
MyPoint t=stack.pop();
System.out.println("pop point:"+t.x+" "+t.y+" value:"+maze[t.x][t.y]);
if(t.x==END_Xt.y==END_Y)
{
result=true;
break;
}
if(visited[t.x-1][t.y].visited==false!maze[t.x-1][t.y].equals("W"))
{
stack.push(visited[t.x-1][t.y]);
visited[t.x-1][t.y].parentRow=t.x;
visited[t.x-1][t.y].parentColumn=t.y;
visited[t.x-1][t.y].visited=true;
}
if(visited[t.x+1][t.y].visited==false!maze[t.x+1][t.y].equals("W"))
{
stack.push(visited[t.x+1][t.y]);
visited[t.x+1][t.y].parentRow=t.x;
visited[t.x+1][t.y].parentColumn=t.y;
visited[t.x+1][t.y].visited=true;
}
if(visited[t.x][t.y-1].visited==false!maze[t.x][t.y-1].equals("W"))
{
stack.push(visited[t.x][t.y-1]);
visited[t.x][t.y-1].parentRow=t.x;
visited[t.x][t.y-1].parentColumn=t.y;
visited[t.x][t.y-1].visited=true;
}
if(visited[t.x][t.y+1].visited==false!maze[t.x][t.y+1].equals("W"))
{
stack.push(visited[t.x][t.y+1]);
visited[t.x][t.y+1].parentRow=t.x;
visited[t.x][t.y+1].parentColumn=t.y;
visited[t.x][t.y+1].visited=true;
}
}
return result;
}
public void show(int x,int y)
{
if(visited[x][y].parentRow==-1)
{
System.out.println("["+x+","+y+"]");
return;
}
show(visited[x][y].parentRow,visited[x][y].parentColumn);
System.out.println("-"+"["+x+","+y+"]");
}
public static void main(String[] args)
{
Maze m=new Maze();
if(m.tomRun())
{
System.out.println("逃生路径如下：");
m.show(m.END_X,m.END_Y);
}
else
System.out.println("无法走出迷宫！");
}
}
我这是用c写的。你可以看看，希望能帮助到你。
#include"stdlib.h"
#include"stdio.h"
#define N 50
#define M 50
int X;
int maze[N+2][M+2];
struct point{
int row,col,predecessor;
}queue[512];
int head=0,tail=0;
void shoudong_maze(int m,int n){
int i,j;
printf("\n\n");
printf("请按行输入迷宫，0表示通路，1表示障碍:\n\n");
for(i=0;im;i++)
for(j=0;jn;j++)
scanf("%d",maze[i][j]);
}
void zidong_maze(int m,int n){
int i,j;
printf("\n迷宫生成中……\n\n");
system("pause");
for(i=0;im;i++)
for(j=0;jn;j++)
maze[i][j]=rand()%2;
//由于rand()产生的随机数是从0到RAND_MAX
//RAND_MAX是定义在stdlib.h中的,其值至少为32767)
//要产生从X到Y的数,只需要这样写：k=rand()%(Y-X+1)+X;
}
void print_maze(int m,int n){
int i,j;
printf("\n迷宫生成结果如下:\n\n");
printf("迷宫入口\n");
printf("↓");
for(i=0;im;i++)
{printf("\n");
for(j=0;jn;j++)
{if(maze[i][j]==0) printf("□");
if(maze[i][j]==1) printf("■");}
}
printf("→迷宫出口\n");
}
void result_maze(int m,int n)
{ int i,j;
printf("迷宫通路(用☆表示)如下所示：\n\t");
for(i=0;im;i++)
{ printf("\n");
for(j=0;jn;j++)
{if(maze[i][j]==0||maze[i][j]==2) printf("□");
if(maze[i][j]==1) printf("■");
if(maze[i][j]==3) printf("☆");
}
}
}
void enqueue(struct point p)
{ queue[tail]=p;
tail++;
}
struct point dequeue()
{ head++;
return queue[head-1];
}
int is_empty()
{ return head==tail;
}
void visit(int row,int col,int maze[52][52])
{ struct point visit_point={row,col,head-1};
maze[row][col]=2;
enqueue(visit_point);
}
int mgpath(int maze[52][52],int m,int n)
{ X=1;
struct point p={0,0,-1};
if(maze[p.row][p.col]==1)
{ printf("\n===============================================\n");
printf("此迷宫无解\n\n");X=0;return 0;}
maze[p.row][p.col]=2;
enqueue(p);
while(!is_empty())
{p=dequeue();
if((p.row==m-1)(p.col==n-1)) break;
if((p.col+1n)(maze[p.row][p.col+1]==0)) visit(p.row,p.col+1,maze);
if((p.row+1m)(maze[p.row+1][p.col]==0)) visit(p.row+1,p.col,maze);
if((p.col-1=0)(maze[p.row][p.col-1]==0)) visit(p.row,p.col-1,maze);
if((p.row-1=0)(maze[p.row-1][p.col]==0)) visit(p.row-1,p.col,maze);
}
if(p.row==m-1p.col==n-1)
{printf("\n==================================================================\n");
printf("迷宫路径为：\n");
printf("(%d,%d)\n",p.row,p.col);
maze[p.row][p.col]=3;
while(p.predecessor!=-1)
{p=queue[p.predecessor];
printf("(%d,%d)\n",p.row,p.col);
maze[p.row][p.col]=3;
}
}
else {printf("\n=============================================================\n");
printf("此迷宫无解！\n\n");X=0;}
return 0;
}
int main()
{int i,m,n,cycle=0;
while(cycle!=(-1))
{
printf("********************************************************************************\n");
printf(" ☆欢迎进入迷宫求解系统☆\n");
printf(" 设计者:尹旭 林静波（信息2班）\n");
printf("********************************************************************************\n");
printf(" 手动生成迷宫 请按：1\n");
printf(" 自动生成迷宫 请按：2\n");
printf(" 退出 请按：3\n\n");
printf("********************************************************************************\n");
printf("\n");
printf("请选择你的操作：\n");
scanf("%d",i);
switch(i)
{case 1:printf("\n请输入行数：");
scanf("%d",m);
printf("\n");
printf("请输入列数：");
scanf("%d",n);
while((m=0||m50)||(n=0||n50))
{ printf("\n抱歉，你输入的行列数超出预设范围(0-50,0-50),请重新输入：\n\n");
printf("请输入行数：");
scanf("%d",m);
printf("\n");
printf("请输入列数：");
scanf("%d",n);
}
shoudong_maze(m,n);
print_maze(m,n);
mgpath(maze,m,n);
if(X!=0)
result_maze(m,n);
printf("\n\nPress Enter Contiue!\n");
getchar();
while(getchar()!='\n');
break;
case 2:printf("\n请输入行数：");
scanf("%d",m);
printf("\n");
printf("请输入列数：");
scanf("%d",n);
while((m=0||m50)||(n=0||n50))
{printf("\n抱歉，你输入的行列数超出预设范围(0-50,0-50),请重新输入：\n\n");
printf("请输入行数：");
scanf("%d",m);
printf("\n");
printf("请输入列数：");
scanf("%d",n);
}
zidong_maze(m,n);
print_maze(m,n);
mgpath(maze,m,n);
if(X!=0)
result_maze(m,n);
printf("\n\nPress Enter Contiue!\n");getchar();while(getchar()!='\n');break;
case 3:cycle=(-1);
break;
default:printf("\n");
printf("你的输入有误!\n");
printf("\nPress Enter Contiue!\n");
getchar();
while(getchar()!='\n');break;
}
}
}
在Way函数的if(Maza[Loci][Locj]==0) 语句里面Maza[Loci][Locj]=2;前面加一句
System.out.println("The Maza route is ("+Loci+","+Locj+")");就打印出程序所走路径的坐标了.
public class Maze { private int[][] maze = null;
private int[] xx = { 1, 0, -1, 0 };
private int[] yy = { 0, 1, 0, -1 };
private Queue queue = null; public Maze(int[][] maze) {
this.maze = maze;
queue = new Queue(maze.length * maze.length);
} public void go() {
Point outPt = new Point(maze.length - 1, maze[0].length - 1);
Point curPt = new Point(0, 0);
Node curNode = new Node(curPt, null);
maze[curPt.x][curPt.y] = 2;
queue.entryQ(curNode); while (!queue.isEmpty()) {
curNode = queue.outQ();
for (int i = 0; i xx.length; ++i) {
Point nextPt = new Point();
nextPt.x = (curNode.point).x + xx[i];
nextPt.y = (curNode.point).y + yy[i];
if (check(nextPt)) {
Node nextNode = new Node(nextPt, curNode);
queue.entryQ(nextNode);
maze[nextPt.x][nextPt.y] = 2;
if (nextPt.equals(outPt)) {
java.util.StackNode stack = new java.util.StackNode();
stack.push(nextNode);
while ((curNode = nextNode.previous) != null) {
nextNode = curNode;
stack.push(curNode);
}
System.out.println("A Path is:");
while (!stack.isEmpty()) {
curNode = stack.pop();
System.out.println(curNode.point);
}
return;
}
}
}
}
System.out.println("Non solution!");
} private boolean check(Point p) {
if (p.x 0 || p.x = maze.length || p.y 0 || p.y = maze[0].length) {
return false;
}
if (maze[p.x][p.y] != 0) {
return false;
}
return true;
} public static void main(String[] args) {
int[][] maze = {
{ 0, 0, 1, 0, 1, 0, 1, 0, 1, 0 },
{ 0, 0, 1, 1, 1, 0, 0, 0, 1, 0 },
{ 0, 1, 0, 0, 1, 0, 0, 0, 0, 1 },
{ 0, 0, 0, 0, 1, 0, 0, 0, 1, 1 },
{ 0, 0, 1, 0, 0, 0, 0, 0, 0, 1 },
{ 1, 0, 1, 0, 1, 0, 0, 1, 0, 0 },
{ 0, 1, 0, 0, 1, 0, 0, 1, 0, 1 },
{ 1, 0, 1, 0, 1, 1, 0, 1, 0, 0 }
};
new Maze(maze).go();
} private class Queue { Node[] array = null;
int size = 0;
int len = 0;
int head = 0;
int tail = 0; public Queue(int n) {
array = new Node[n + 1];
size = n + 1;
} public boolean entryQ(Node node) {
if (isFull()) {
return false;
}
tail = (tail + 1) % size;
array[tail] = node;
len++;
return true;
} public Node outQ() {
if (isEmpty()) {
return null;
}
head = (head + 1) % size;
len--;
return array[head];
} public boolean isEmpty() {
return (len == 0 || head == tail) ? true : false;
} public boolean isFull() {
return ((tail + 1) % size == head) ? true : false;
}
} private class Node { Point point = null;
Node previous = null; public Node() {
this(null,null);
} public Node(Point point, Node node) {
this.point = point;
this.previous = node;
}
} private class Point { int x = 0;
int y = 0; public Point() {
this(0, 0);
} public Point(int x, int y) {
this.x = x;
this.y = y;
} public boolean equals(Point p) {
return (x == p.x) (y == p.y);
} @Override
public String toString() {
return "(" + x + "," + y + ")";
}
}
}
给你代码，你给出的那两个类，不能满足，我的需要，我就没有使用。
你看一下吧。
----------------------------------------
package stackpackage;
import java.io.BufferedReader;
import java.io.FileReader;
import java.util.ArrayList;
import java.util.List;
import java.util.Scanner;
public class Maze {
// 上
private static Point directionTop = new Point(-1, 0);
// 下
private static Point directionBottom = new Point(1, 0);
// 左
private static Point directionLeft = new Point(0, -1);
// 右
private static Point directionRight = new Point(0, 1);
private static Point[] directions = { directionTop, directionRight,
directionBottom, directionLeft };
private static boolean isStop = false;
private static int row = 0;
private static int col = 0;
private static Point startPoint = new Point();
public static void main(String[] args) throws Exception {
FileReader fr = new FileReader("data.txt");
BufferedReader br = new BufferedReader(fr);
int rowIndex = 1;
int[][] maze = null;
while (br.ready()) {
String line = br.readLine();
Scanner sc = new Scanner(line);
if (rowIndex == 1) {
row = sc.nextInt();
col = sc.nextInt();
maze = new int[row][col];
} else {
if (rowIndex row + 2) {
for (int i = 0; i col; i++) {
maze[rowIndex - 2][i] = sc.nextInt();
}
} else {
startPoint.x = sc.nextInt();
startPoint.y = sc.nextInt();
}
}
rowIndex++;
}
ListPoint route = new ArrayListPoint();
route.add(startPoint);
findNext(startPoint);
puzzle(maze, startPoint, route);
System.out.println(route);
}
private static void puzzle(int[][] maze, Point p, ListPoint route) {
if (isStop) {
return;
}
Point[] nextDirections = p.nextDirections;
for (int i = 0; i nextDirections.length; i++) {
if (isStop) {
return;
}
Point direction = nextDirections[i];
Point newP = new Point(p.x + direction.x, p.y + direction.y);
if (newP.isEffective() maze[newP.x][newP.y] == 0
!route.contains(newP)) {
newP.before = p;
findNext(newP);
route.add(newP);
if (isExit(newP)) {
isStop = true;
break;
}
puzzle(maze, newP, route);
}
}
if (isStop) {
return;
}
route.remove(route.size() - 1);
}
private static void findNext(Point p) {
int index = 0;
Point[] nextDirections = new Point[3];
for (int i = 0; i nextDirections.length; i++) {
nextDirections[i] = new Point(0, 0);
}
for (int i = 0; i directions.length; i++) {
Point direction = directions[i];
Point newP = new Point(p.x + direction.x, p.y + direction.y);
if (newP.isEffective() !newP.equals(p.before) newP.x row
newP.y col) {
nextDirections[index++] = direction;
}
}
p.nextDirections = nextDirections;
}
private static boolean isExit(Point p) {
if (startPoint.equals(p)) {
return false;
}
for (int i = 0; i directions.length; i++) {
Point direction = directions[i];
Point newP = new Point(p.x + direction.x, p.y + direction.y);
if (!newP.equals(p.before)
(newP.x = row || newP.y = col || newP.x 0 || newP.y 0)) {
return true;
}
}
return false;
}
}
class Point {
int x = 0;
int y = 0;
Point[] nextDirections = null;
Point before = null;
public Point() {
}
public Point(int x, int y) {
this.x = x;
this.y = y;
}
public String toString() {
return "" + x + "," + y + "";
}
public boolean isEffective() {
return x = 0 y = 0;
}
public boolean equals(Object obj) {
return equals((Point) obj);
}
public boolean equals(Point p) {
if (p == null) {
return false;
}
return this.x == p.x this.y == p.y;
}
}
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