View Code of Problem 3857

#include <stdio.h>
#include <string.h>
#include<math.h>

int main(){
	int t,n,a[1000];
	scanf("%d",&t);
	while(t--){
		int sum=0;
		scanf("%d",&n);
		for(int i=0;i<n;i++){
			scanf("%d",&a[i]);
			if(a[i]==2){
				sum++;
			}
		}
		printf("%d\n", sum);
	}

	return 0;
}