不知为何，都不输出了 感谢各位大佬调整（膜拜）

#include<bits/stdc++.h>
using namespace std;
int mp[50][50];
int g[100][100]={
{0,0,0,0,0,0,0,0,0,0},
{0,1,1,1,2,2,2,3,3,3},
{0,1,1,1,2,2,2,3,3,3},
{0,1,1,1,2,2,2,3,3,3},
{0,4,4,4,5,5,5,6,6,6},
{0,4,4,4,5,5,5,6,6,6},
{0,4,4,4,5,5,5,6,6,6},
{0,4,4,4,5,5,5,6,6,6},
{0,7,7,7,8,8,8,9,9,9},
{0,7,7,7,8,8,8,9,9,9},
{0,7,7,7,8,8,8,9,9,9}
};
bool row[20][20],col[20][20],gong[20][20];
void dfs(int x,int y){
	if(x==10){
		for(int i=1;i<=9;i++){
			for(int j=1;j<=9;j++){
				cout<<mp[i][j]<<" ";
			}
			cout<<"\n";
		}
		exit(0);
	}
	if(!mp[x][y]){
		for(int i=1;i<=9;i++){
			if(!row[i][x]&&!col[i][y]&&!gong[i][g[x][y]]){
				row[i][x]=col[i][y]=gong[i][g[x][y]]=1;
				mp[x][y]=i;
				if(y==9){
					dfs(x+1,1);
				}else{
					dfs(x,y+1);
				}
				row[i][x]=col[i][y]=gong[i][g[x][y]]=0;
				mp[x][y]=0;
			}
		}	
	}else{
		if(y==9){
			dfs(x+1,1);
		}else{
			dfs(x,y+1);
		}
	}
		
}
int main(){
	ios::sync_with_stdio(0);
	cin.tie(0);
	cout.tie(0);
	for(int i=1;i<=9;i++){
		for(int j=1;j<=9;j++){
			cin>>mp[i][j];
			row[mp[i][j]][i]=col[mp[i][j]][j]=gong[mp[i][j]][g[i][j]]=1;
		}
	}
	dfs(1,1);
	return 0;
}