无谓的味道

摘要： DescriptionA tree is a well-known data structure that is either empty (null, void, nothing) or is a set of one or more nodes connected by directed edg... 阅读全文

摘要： Problem Description上次Gardon的迷宫城堡小希玩了很久（见Problem B），现在她也想设计一个迷宫让Gardon来走。但是她设计迷宫的思路不一样，首先她认为所有的通道都应该是双向连通的，就是说如果有一个通道连通了房间A和B，那么既可以通过它从房间A走到房间B，也可以通过它从... 阅读全文

摘要： DescriptionThe ministers of the cabinet were quite upset by the message from the Chief of Security stating that they would all have to change the four... 阅读全文