勇敢的炮灰

摘要： 点击打开链接HighwaysTime Limit:1000MSMemory Limit:65536KTotal Submissions:19004Accepted:8815DescriptionThe island nation of Flatopia is perfectly flat. Unfortunately, Flatopia has no public highways. So the traffic is difficult in Flatopia. The Flatopian government is aware of this problem. They're pl 阅读全文

摘要： 点击打开链接Truck HistoryTime Limit:2000MSMemory Limit:65536KTotal Submissions:15235Accepted:5842DescriptionAdvanced Cargo Movement, Ltd. uses trucks of different types. Some trucks are used for vegetable delivery, other for furniture, or for bricks. The company has its own code describing each type of a 阅读全文

摘要： 点击打开链接ArbitrageTime Limit:1000MSMemory Limit:65536KTotal Submissions:13434Accepted:5657DescriptionArbitrage is the use of discrepancies in currency exchange rates to transform one unit of a currency into more than one unit of the same currency. For example, suppose that 1 US Dollar buys 0.5 British 阅读全文