#include <stdio.h> int main(){ int T; scanf("%d",&T); while(T--){ int n; scanf("%d",&n); int a[n]; for(int i=0;i<n;i++){ scanf("%d",&a[i]); } int count=0; for(int i=0;i<n;i++){ if(a[i]==2){ count++; } } printf("%d\n",count); } } |
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