#include<bits/stdc++.h>
using namespace std;
bitset <10> canpush[3*9+1];
int sudoku[100][100],ans=0;
int sudokuser[100][100]=
{
	{0,0,0,0,0,0,0,0,0,0},
	{0,6,6,6,6,6,6,6,6,6},
	{0,6,7,7,7,7,7,7,7,6},
	{0,6,7,8,8,8,8,8,7,6},
	{0,6,7,8,9,9,9,8,7,6},
	{0,6,7,8,9,10,9,8,7,6},
	{0,6,7,8,9,9,9,8,7,6},
	{0,6,7,8,8,8,8,8,7,6},
	{0,6,7,7,7,7,7,7,7,6},
	{0,6,6,6,6,6,6,6,6,6}
};
bool stooop=0,couted=0;
void nprint()
{
	couted=1;
	int nowans=0;
	for(int i=1;i<=9;i++)
		for(int j=1;j<=9;j++)
			nowans+=sudoku[i][j]*sudokuser[i][j];
	ans=max(nowans,ans);
}
void findpush(int &x,int &y)
{
	int nm=9;
	for(int i=1;i<=9;i++)
		for(int j=1;j<=9;j++)
		{
			if(sudoku[i][j]==0)
			{
				int gong=((i-1)/3)*3+(j-1)/3+1;
				bitset <10> tmp=canpush[i]&canpush[j+9]&canpush[gong+9+9];
				int n=tmp.count();
				if(n<nm)
				{
					nm=n;
					x=i,y=j;
				}
			}
		}
	if(nm==0) stooop=1;
} 
void dfs(int x,int y,int less)
{
	if(x>9||y>9) return;
	if(less==0) nprint();
	int gong=((x-1)/3)*3+(y-1)/3+1;
	bitset <10> tmp=canpush[x]&canpush[y+9]&canpush[gong+9+9];
	for(int i=1;i<=9;i++)
		if(tmp[i]==1)
		{
			sudoku[x][y]=i;
			canpush[x].set(i,0);
			canpush[y+9].set(i,0);
			canpush[gong+9+9].set(i,0);
			int nxtx,nxty;
			findpush(nxtx,nxty);
			if(!stooop) dfs(nxtx,nxty,less-1);
			stooop=0;
			sudoku[x][y]=0;
			canpush[x].set(i,1);
			canpush[y+9].set(i,1);
			canpush[gong+9+9].set(i,1);
		}
	return;
}
string a;
int main()
{
	int cnt0=0;
	for(int i=1;i<=9;i++)
		for(int j=1;j<=9;j++)
			cin>>sudoku[i][j];
	for(int i=1;i<=27;i++) canpush[i].set();
	for(int i=1;i<=9;i++)
		for(int j=1;j<=9;j++)
			if(sudoku[i][j]!=0)
			{
				int gong=((i-1)/3)*3+(j-1)/3+1;
				int n=sudoku[i][j];
				canpush[i].set(n,0);
				canpush[j+9].set(n,0);
				canpush[gong+9+9].set(n,0);
			}
			else cnt0++;
	int fx=114514,fy=1919810,nm=9;
	findpush(fx,fy);
	dfs(fx,fy,cnt0);
	if(couted) cout<<ans;
	else cout<<-1;
	return 0;
}

本机上下载过数据没问题，为什么在luogu就会爆掉，只会出-1（ Linux和Win的差异吗