//Qua cau
// Tank like this

#include <iostream>
using namespace std;

int TC, N, mang[20][7], maxx, count, s;

int dy[3]={-1, 0, 1};

void backtrack(int sum, int x, int y){
	if(x==1){
		if(maxx<sum) maxx=sum;
		s=1;
		return;
	}
	for(int i=0; i<3; i++){
		int yN=y+dy[i];
		if(yN>0 && yN<=5){
			if(mang[x-1][yN]!=2){
				backtrack(sum+mang[x-1][yN], x-1, yN);
			}
			else if(mang[x-1][yN]==2&& count==0){
				count++;
				backtrack(sum, x-1, yN);
				count--;
			}
		}
	}
}

int main(){
	//freopen("in.txt", "r", stdin);
	cin>> TC;
	for(int t=1; t<=TC; t++){
		cin>> N;
		for(int i=0; i<=N+1; i++){
			for(int j=0; j<=6; j++){
				if(i>=1 && i<=N && j>=1 && j<=5){
					cin>> mang[i][j];
				}
				else mang[i][j]=2;
			}
		}
		maxx=count=s=0;
		backtrack(0,N+1, 3);
		cout<< "#"<< t<< " ";
		if(s==0) cout<< -1<< endl;
		else cout<< maxx<< endl;
	}
	return 0;
}

In function 'void backtrack(int, int, int)':
Line 23: error: reference to 'count' is ambiguous
compilation terminated due to -Wfatal-errors.