POJ 1970 The Game

#include<iostream>  
using namespace std;  
const int dir_x[]={1,0,1,-1};  
const int dir_y[]={0,1,1,1};  
void search(int x,int y);  
int judge,goal_x,goal_y,board[21][21];  
void search(int x,int y){  
    for(int i=0;i<4;i++){  
        int tmpx=x,tmpy=y,counter=0;  
        int tx=tmpx-dir_x[i],ty=tmpy-dir_y[i];  
        if(tx>=0&&tx<19&&ty>=0&&ty<19&&board[tx][ty]==board[x][y])      continue;  
        while(tmpx>=0&&tmpx<19&&tmpy>=0&&tmpy<19&&board[tmpx][tmpy]==board[x][y]){  
            counter++;  
            tmpx+=dir_x[i];  
            tmpy+=dir_y[i];  
        }  
        if(counter==5){  
            judge=board[x][y];  
            goal_x=x+1; goal_y=y+1;  
            return;  
        }  
    }  
    return;  
}  
int main(){  
    int t;cin>>t;  
    while(t--){  
        for(int i=0;i<19;i++)  
             for(int j=0;j<19;j++)  
                 cin>>board[i][j];  
        judge=0;  
        for(int i=0;i<19;i++){  
            if(judge!=0)    break;  
            for(int j=0;j<19;j++){  
                if(judge!=0)    break;  
                if(board[i][j]==0)    continue;             
                search(i,j);  
            }  
        }  
        cout<<judge<<endl;  
        if(judge==1)cout<<goal_x<<" "<<goal_y<<endl;  
        else if(judge==2)    cout<<goal_x<<" "<<goal_y<<endl;  
    }
}