Problem:
Score : 400 points

Problem Statement

There are two persons, numbered 0 and 1, and a variable x whose initial value is 0.
The two persons now play a game.
The game is played in N rounds. The following should be done in the i-th round (1 \leq i \leq N):

Person S_i does one of the following:

Replace x with x \oplus A_i, where \oplus represents bitwise XOR.

Do nothing.

Person 0 aims to have x=0 at the end of the game, while Person 1 aims to have x \neq 0 at the end of the game.

Determine whether x becomes 0 at the end of the game when the two persons play optimally.

Solve T test cases for each input file.

Constraints

1 \leq T \leq 100

1 \leq N \leq 200

1 \leq A_i \leq 10^{18}

S is a string of length N consisting of 0 and 1.

All numbers in input are integers.

Input

Input is given from Standard Input in the following format.
The first line is as follows:

T

Then, T test cases follow.
Each test case is given in the following format:

N
A_1 A_2 \cdots A_N
S

Output

For each test case, print a line containing 0 if x becomes 0 at the end of the game, and 1 otherwise.

Sample Input 1

3
2
1 2
10
2
1 1
10
6
2 3 4 5 6 7
111000

Sample Output 1

1
0
0

In the first test case, if Person 1 replaces x with 0 \oplus 1=1, we surely have x \neq 0 at the end of the game, regardless of the choice of Person 0.

In the second test case, regardless of the choice of Person 1, Person 0 can make x=0 with a suitable choice.

Solution in C (GCC 9.2.1) (judge verdict: Wrong Answer)

#include <stdio.h>
int main(void){
    int t, n, s, n2;
    
    scanf("%d", &t);
    
    for(int i = 0; i < t; i++){
        
        scanf("%d", &n);
        long num_list[n];
        int str_list[n];
        for(int j = 0; j < n; j++) scanf("%ld", &num_list[j]);
        scanf("%d", &s);
        n2 = n;
        for(int j = 0; n2 == 0; j++){
            str_list[j] = s%10*(j+1);
            s = s*0.1;
            n2--;
        }
        int x = 0;
        for(int j = n-1; j >= 0; j--){
            if(num_list[j]%2 == 1){
                if(str_list[j] == 0){
                    x = 0;
                    break;
                }
                else{
                    x = 1;
                    break;
                }
            }
        }
        printf("%d\n", x);
        
    }
    
}