View Code of Problem 3857

#include<bits/stdc++.h>
using namespace std;
int T, n, t;
int main() {
	cin >> T;
	while (T--) {
		int cnt = 0;
		cin >> n;
		for (int i = 0; i < n; i++) {
			cin >> t;
			if (t == 2)
				cnt++;
		}
		cout << cnt << endl;
	}
	return 0;
}