The USACO website is currently down due to being hit by a massive denial of service attack. Please check back later. We appreciate your understanding during this challenging and frustrating situation.
USACO网站目前因受到大规模拒绝服务攻击而关闭。 请稍后再回来查看。在此充满挑战和令人沮丧的情况下，感谢您的理解。

所以，USACO真的被攻击了，请不要再发有关USACO进不去等问题的帖子。节约资源，从我做起。

话说像我这种8:00开始打但一直就进不去的人咋整？$0$分了啊！！！