#include <iostream.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <math.h>
#include <stdio.h>
typedef struct Point
{
int x;
int y;
}Point;
/*typedef struct Stack
{
Point Array[100];
int length;
}Stack;*/
void fun(int (*a)[10],int i,int j,int m,int& flag)
{
if(i<0||j<0||i>=m||j>=m||a[i][j]!=1||flag)
{
return;
}
a[i][j]=2;
if(i==9&&j==9)
{
flag=1;
return;
}
fun(a,i-1,j,m,flag);
fun(a,i+1,j,m,flag);
fun(a,i,j-1,m,flag);
fun(a,i,j+1,m,flag);
if(flag) {a[i][j]=3;return;}
}
typedef struct PointAddr
{
int x;
int y;
int orition;
}PointAddr;
typedef struct Stack
{
PointAddr addr[100];
int length;
}Stack;
void Push(Stack& stack,int i,int j,int (*a)[10],int m)
{
if(i<0||j<0||i>=m||j>=m||a[i][j]!=1) return;
PointAddr temp;
temp.x=i;temp.y=j;temp.orition=0;
stack.addr[stack.length]=temp;
stack.length++;
a[i][j]=2;
}
PointAddr Pop(Stack& stack)
{
PointAddr temp=stack.addr[stack.length-1];
stack.length--;
return temp;
}
PointAddr GetHead(Stack& stack)
{
return stack.addr[stack.length-1];
}
void main()
{
srand((unsigned)time(NULL));
int map[10][10];
int flag=0;
while(!flag)
{
for (int i=0;i<10;i++)
{
for (int j=0;j<10;j++)
{
map[i][j]=rand()%2;
}
}
fun(map,0,0,10,flag);
}
for (int i=0;i<10;i++)
{
for (int j=0;j<10;j++)
{
if(map[i][j]>0) map[i][j]=1;
cout<<map[i][j]<<" ";
}
cout<<endl;
}
cout<<endl;
Stack stack;
stack.length=0;//栈为空
Push(stack,0,0,map,10);
Stack temp1;
temp1.length=100;
while (stack.length>0)
{
PointAddr temp=GetHead(stack);
if (temp.x==9&&temp.y==9)
{
if (temp1.length>stack.length)
{
temp1=stack;
}
map[temp.x][temp.y]=1;
Pop(stack);
continue;
}
switch(temp.orition)
{
case 0:
{
stack.addr[stack.length-1].orition++;
Push(stack,temp.x+1,temp.y,map,10);
}
break;
case 1:
{
stack.addr[stack.length-1].orition++;
Push(stack,temp.x,temp.y+1,map,10);
}
break;
case 2:
{
stack.addr[stack.length-1].orition++;
Push(stack,temp.x-1,temp.y,map,10);
}
break;
case 3:
{
stack.addr[stack.length-1].orition++;
Push(stack,temp.x,temp.y-1,map,10);
}
break;
case 4:
{
map[temp.x][temp.y]=1;
Pop(stack);
}
break;
}
}
cout<<temp1.length<<endl;
for (i=0;i<temp1.length;i++)
{
cout<<temp1.addr[i].x<<","<<temp1.addr[i].y<<endl;
}
}
