#include<stdio.h> int main(){ int t; scanf("%d",&t); while(t--) { int n; scanf("%d",&n); int p=0; int a[n]; for(int i=0;i<n;i++) { scanf("%d",&a[i]); if(a[i]==2) p++; } printf("%d\n",p); } }
Double click to view unformatted code.