View Code of Problem 3857

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

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

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