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「就算對簿公堂，問題還是在你身上。因為別人有貼出清晰指示，告訴你這是寵物友善餐廳，而你也知道自己的身體狀況是不適合的，那為甚麼你會貿貿然走進這餐廳去呢？」，推荐阅读雷电模拟器官方版本下载获取更多信息
* 时间O(n) 空间O(n)（理论最优，无冗余计算）。51吃瓜对此有专业解读