摘要：
百度科技园内有nn个零食机，零食机之间通过n−1n−1条路相互连通。每个零食机都有一个值vv，表示为小度熊提供零食的价值。 由于零食被频繁的消耗和补充，零食机的价值vv会时常发生变化。小度熊只能从编号为0的零食机出发，并且每个零食机至多经过一次。另外，小度熊会对某个零食机的零食有所偏爱，要求路线上必 阅读全文
摘要：
There is a country with 𝑛n citizens. The 𝑖i-th of them initially has 𝑎𝑖ai money. The government strictly controls the wealth of its citizens. When 阅读全文