#include<iostream>
#include<cstdlib>
#include<cstring>
#include<string>
#define TRUE 1
#define FALSE 0
#define OK 1
#define ERROR 0
#define INFEASIBLE -1
#define OVERFLOW -2
typedef int Status;
typedef int DirectiveType;
#define RANGE 100 //迷宫大小
#define STACK_INIT_SIZE 100
#define STACKINCREMENT 10
typedef struct{
int row;
int col;
}PosType;
typedef struct{
int step;
PosType seat;
DirectiveType di;
}SElemType;
typedef struct{
SElemType *base;
SElemType *top;
int stacksize;
}SqStack;
Status InitStack(SqStack &s){
s.base = (SElemType * ) malloc(STACK_INIT_SIZE * sizeof(SElemType));
if(!s.base) exit(OVERFLOW);
s.top=s.base;
s.stacksize=STACK_INIT_SIZE;
return OK;
}
Status GetTop(SqStack s, SElemType &e ){
if( s.top == s.base) return ERROR;
e = *(s.top-1);
return OK;
}
Status Push(SqStack &s, SElemType e){
if(s.top-s.base >= s.stacksize){
s.base = (SElemType *)realloc(s.base,(s.stacksize+STACKINCREMENT)*sizeof(SElemType));
if(!s.base) exit(OVERFLOW);
s.top = s.base + s.stacksize;
s.stacksize += STACKINCREMENT;
}
*s.top++ = e;
return OK;
}
Status Pop(SqStack &s, SElemType &e){
if(s.top==s.base)return ERROR;
e = * --s.top;
return OK;
}
int StackEmpty(SqStack s){
return s.base == s.top;
}
#define ROW 10
#define COL 10
typedef struct{
int m,n;
int arr[RANGE][RANGE];
}MazeType;
Status InitMaze(MazeType &maze, int a[][COL], int row, int col){
for(int i=1;i<=row;i++){
for(int j=1;j<=col;j++){
maze.arr[i][j] = a[i-1][j-1];
}
}
for(int j=0;j<=col+1;j++){
maze.arr[0][j] = maze.arr[row+1][j]=1;
}
for(int i=0;i<=row+1;i++){
maze.arr[i][0] = maze.arr[i][col+1]=1;
}
maze.m = row, maze.n = col;
return OK;
}
Status Pass(MazeType maze,PosType curpos){
if(maze.arr[curpos.row][curpos.col] == 0)
return 1;
else return 0;
}
Status FootPrint(MazeType &maze,PosType curpos){
maze.arr[curpos.row][curpos.col]=2;
return OK;
}
Status MarkPrint(MazeType &maze,PosType curpos){
maze.arr[curpos.row][curpos.col]=3;
return OK;
}
SElemType CreateSElem(int step, PosType pos, int di){
SElemType e;
e.step = step;
e.seat = pos;
e.di = di;
return e;
}
PosType NextPos(PosType curpos, DirectiveType di){
PosType pos = curpos;
switch(di)
{
case 1:
pos.col++;
break;
case 2:
pos.row++;
break;
case 3:
pos.col--;
break;
case 4:
pos.row--;
break;
}
return pos;
}
Status PosEquare(PosType pos1, PosType pos2){
if(pos1.row==pos2.row && pos1.col==pos2.col)
return 1;
else return 0;
}
void PrintMaze(MazeType maze,int row,int col){
int i,j;
printf(" ");
for(i=0;i<=COL+1;i++)
printf("-",i);
printf("\n");
for(i=0;i<=row+1;i++){
printf("=",i);
for(j=0;j<=col+1;j++){
switch(maze.arr[i][j]){
case 0:
printf(" ");
break;
case 2:
printf("* ");
break;
case 3:
printf("@ ");
break;
case 1:
printf("# ");
break;
}
}
printf("\n");
}
}
Status MazePath(MazeType &maze,PosType start, PosType end){
SqStack s; SElemType e;
InitStack(s);
PosType curpos = start;
int curstep = 1;
do{
if( Pass(maze,curpos) ){
FootPrint(maze,curpos);
e = CreateSElem(curstep,curpos,1);
Push(s,e);
if( PosEquare(curpos,end) ) return TRUE;
curpos =NextPos(curpos,1);
curstep++;
}else{
if(!StackEmpty(s)){
Pop(s,e);
while(e.di==4 && !StackEmpty(s) ){
MarkPrint(maze,e.seat); Pop(s,e);
}
if(e.di<4){
e.di++; Push(s,e);
curpos = NextPos(e.seat,e.di);
}
}
}
}while(!StackEmpty(s));
return FALSE;
}
#include "base.h"
#include "stack.h"
#include "maze.h"
int main(){
char cmd;
int i;
PosType start,end;
MazeType maze;
int a[ROW][COL]={
{0,0,1,0,0,0,0,1,0,1},
{1,0,1,0,1,1,0,1,1,0},
{1,0,0,0,1,1,0,0,0,1},
{0,1,0,1,1,0,0,1,1,1},
{0,1,0,0,1,1,0,1,0,0},
{1,0,1,0,1,1,0,0,1,0},
{0,1,1,0,0,0,1,0,1,1},
{0,1,0,1,1,0,0,0,0,0},
{0,1,1,0,0,1,1,1,1,0},
{1,0,1,0,1,1,0,0,1,0}
};
printf("\n----------原始迷宫(不加外围围墙)(0 表示通路,1 表示障碍)---------\n");
printf(" ");
for(i=1;i<=COL;i++)
printf("-",i);
printf("\n");
for(i=0;i<ROW;i++){
printf("=",i+1);
for(int j=0;j<COL;j++)
printf("-",a[i][j]);
printf("\n");
}
InitMaze(maze,a,ROW,COL);
do{
int flag=0;
do{
printf("\n输入迷宫入口坐标( <1,1>到<10,10>之间 ): ");
scanf_s("%d%d",&start.row,&start.col);
if(start.col>maze.n || start.row>maze.m ||start.col<=0||start.row<=0){
printf("越界!");
flag=1;
}
else flag=0;
}while(flag);
do{
printf("输入迷宫出口坐标( <1,1>到<10,10>之间 ): ");
scanf_s("%d%d",&end.row , &end.col);
if( end.col>maze.n || end.row>maze.m ||end.col<=0||end.row<=0){
printf("越界!\n");
flag=1;
}
else flag=0;
}while(flag);
if(MazePath(maze,start,end)){
printf("\n-----上帝与你同在,从当前入口到出口有通路(加上了外围围墙)( * 组成的路径)----------\n");
PrintMaze(maze,ROW,COL);
}
else printf("\n---------你死定了!从当前入口到出口没有通路!-----\n");
printf("\n To be Continue ?y(Y)/n: ");
scanf_s(" %c",&cmd);
}while(cmd=='Y'||cmd=='y');
return 0;
}