【2014acm西安现场赛】A - Built with Qinghuai and Ari Factor

题目链接：

https://icpcarchive.ecs.baylor.edu/index.php?option=com_onlinejudge&Itemid=8&page=show_problem&problem=5047

签到题，注意输出Yes和No大小写区分

#include
using namespace std;


int main(){
  int T,n,a;
  cin>>T;
  for(int i=1;i<=T;i++){
    cin>>n;
    bool flag=true;
    while(n--){
        scanf("%d",&a);
        if (a%3 != 0) flag=false;
    }
    printf("Case #%d: ",i);
    if (flag)  printf("Yes\n");
    else printf("No\n");
  }
  return 0;
}