#include "bits/extc++.h"

using namespace std;

template <typename T, typename... U>
void dbgh(const T& t, const U&... u) {
    cerr << t;
    ((cerr << " | " << u), ...);
    cerr << endl;
}

#ifdef DEBUG
#define dbg(...)                                           \
    cerr << "L" << __LINE__ << " [" << #__VA_ARGS__ << "]" \
         << ": ";                                          \
    dbgh(__VA_ARGS__)
#else
#define cerr   \
    if (false) \
    cerr
#define dbg(...)
#endif

#define endl "\n"
#define long int64_t
#define sz(x) int(std::size(x))

bool ssolve(vector<long> arr) {
    long g = 0;
    for (auto& a : arr) {
        g = gcd(g, a);
    }
    g = long(1) << __builtin_ctz(g);
    if (sz(arr) % 2) {
        for (auto& a : arr) {
            a /= g;
        }
    }
    for (auto& a : arr) {
        if (a % 2 == 0) {
            return true;
        }
    }
    return false;
}

void solve() {
    int n;
    cin >> n;
    vector<long> arr(n);
    for (auto& a : arr) {
        cin >> a;
    }
    cout << ssolve(arr) << endl;
}

int main() {
    cin.tie(nullptr);
    cin.exceptions(ios::failbit);
    ios_base::sync_with_stdio(false);
    int tcs;
    cin >> tcs;
    while (tcs--) {
        solve();
    }
}