#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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