View Code of Problem 3857

#include <iostream>
using namespace std;

int main() {
	int t;
	cin >>t;
	while(t--){
		int n,a[1000]={0},sum=0;
		cin >>n;
		for(int i=0;i<n;i++){
			cin >>a[i];
			if(a[i]==2){
				sum++;
			}
		}
		cout <<sum<<endl;
	}
	return 0;
}