View Code of Problem 3857

#include <stdio.h>
#include <iostream>
#include <string.h>
#include <string>
#include <algorithm>
#include <iomanip>
#include<vector>
#include<math.h>
using namespace std;
int main()
{
	int n;
	cin >> n;
	int t;
	while (n--) {
		int m;
		int sum = 0;
		cin >> m;
		while (m--) {
			cin >> t;
			if (t == 2) {
				sum++;
			}
		}
		cout << sum << endl;
	}
}