摘要:
http://poj.org/problem?id=1789 Description Advanced Cargo Movement, Ltd. uses trucks of different types. Some trucks are used for vegetable delivery, 阅读全文
摘要:
http://poj.org/problem?id=2485 Description The island nation of Flatopia is perfectly flat. Unfortunately, Flatopia has no public highways. So the tra 阅读全文
摘要:
http://poj.org/problem?id=1258 Description Farmer John has been elected mayor of his town! One of his campaign promises was to bring internet connecti 阅读全文