本地样例过了，编译也是成功的，但是洛谷评测上却编译失败了，求调

#include<bits/stdc++.h>
using namespace std;
int wx[8]={-2,-2,-1,1,2,2,1,-1};
int wy[8]={-1,1,2,2,1,-1,-2,-2};
int T;
int flag,success,sx,sy;
char goalmap[5005][5005]={
	{'0','0','0','0','0','0'},
	{'0','1','1','1','1','1'},
	{'0','0','1','1','1','1'},
	{'0','0','0','*','1','1'},
	{'0','0','0','0','0','1'},
	{'0','0','0','0','0','0'},
};
char nowmap[5005][5005];
int des()
{
	int cnt=0;
	for(int i=1;i<=5;i++)
	{
		for(int j=1;j<=5;j++)
		{
			if(goalmap[i][j]!=nowmap[i][j])
			{
				cnt++;
			}
		}
	}
	return cnt;
}
void A_star(int dep,int x,int y,int maxdep)
{
	if(dep==maxdep)
	{
		if(!des())
		{
			success=1;
		}
		return;
	}
	for(int i=0;i<8;i++)
	{
		int xx=x+wx[i];
		int yy=y+wy[i];
		if(xx>=1&&xx<=5&&yy>=1&&yy<=5)
		{
			swap(nowmap[x][y],nowmap[xx][yy]);
			int deses=des();
			if(deses+dep<=maxdep)
			{
				A_star(dep+1,xx,yy,maxdep);
			}
			swap(nowmap[x][y],nowmap[xx][yy]);
		}
	}
}
int main()
{
	cin>>T;
	while(T--)
	{
		flag=0;
		success=0;
		for(int i=1;i<=5;i++)
		{
			for(int j=1;j<=5;j++)
			{
				cin>>nowmap[i][j];
				if(nowmap[i][j]=='*')
				{
					sx=i;
					sy=j;
				}
			}
		}
		for(int maxdep=1;maxdep<=15;maxdep++)
		{
			A_star(0,sx,sy,maxdep);
			if(success)
			{
				cout<<maxdep<<endl;
				flag=1;
				break;
			}
		}
		if(!flag)
		{
			cout<<"-1"<<endl;
		}
	}
	return 0;
}