#define LOCAL
#include <bits/stdc++.h>
#define fir first
#define sec second
#define el '\n'

#ifdef LOCAL
#define FINISH cerr << "FINISH" << endl;
#else
#define FINISH ;
#endif

#ifdef LOCAL
#define debug(x) cerr << setw(4) << #x << " == " << x << endl
#else
#define debug(x)
#endif

#ifdef LOCAL
#define debugv(x)                   \
	cerr << setw(4) << #x << ":: "; \
	for (auto i : x)                \
		cerr << i << " ";           \
	cerr << endl
#else
#define debugv(x)
#endif

using namespace std;
typedef long long ll;
typedef pair<int, int> PII;
ostream& operator<<(ostream& out, PII& x)
{
	out << x.fir << " " << x.sec << endl;
	return out;
}
const int mod = 998244353;
const int inf = 0x3f3f3f3f;
const int N = 200020;
int lowbit(int x)
{
	return x & (-x);
}
void solve()
{
	int n;
	cin >> n;
	vector<int> a(n + 1, 0);
	for (int i = 1; i <= n; i++) {
		cin >> a[i];
	}
	if (n % 2 == 0) {
		int flag = 0;
		for (int i = 1; i <= n; i++) {
			if (a[i] % 2 == 0) {
				flag = 1;
			}
		}
		cout << flag << endl;
	}
	else {
		int mn = inf, flag = 0;
		for (int i = 1; i <= n; i++) {
			mn = min(mn, lowbit(a[i]));
		}
		for (int i = 1; i <= n; i++) {
			a[i] = a[i] / (1 << mn);
			if (a[i] % 2 == 0)
				flag = 1;
		}
		cout << flag << endl;
	}
}
int main()
{
	ios::sync_with_stdio(false);
	cin.tie(nullptr);
	cout.tie(nullptr);
	int T = 1;
	cin >> T;
	while (T--) {
		solve();
	}
	return 0;
}