View Code of Problem 3857

#include<bits/stdc++.h>
using namespace std;
int main(){
	int t;
	cin>>t;
	while(t--){
		int n,ans=0;
		cin>>n;
		for(int i=1;i<=n;++i){
			int data;
			cin>>data;
			if(data==2)
			ans++;
		}
		cout<<ans<<endl;
	}
	return 0;
	
}