View Code of Problem 3857

#include<cstdio>
#include<cstring>
#include<cmath>
#include<iostream>
#include<algorithm>
#define N 100
int main(){
    int t;
    scanf("%d",&t);
    while(t--)
	{
        int n,i,k=0,str[1001];
        scanf("%d",&n);
        for(i=0;i<n;i++)
        {
        	scanf("%d",&str[i]);
        	if(str[i]==2)
        		k++;
		}
		 printf("%d\n",k);
    }
	return 0;
}