2017年2月17日
USACO 5.4 Canada Tour
摘要： You have won a contest sponsored by an airline. The prize is a ticket to travel around Canada, beginning in the most western point served by this airl 阅读全文
posted @ 2017-02-17 20:45 sigongzi 阅读(624) 评论(0) 推荐(0)
USACO 5.3 Big Barn
摘要： Farmer John wants to place a big square barn on his square farm. He hates to cut down trees on his farm and wants to find a location for his barn that 阅读全文
posted @ 2017-02-17 11:43 sigongzi 阅读(371) 评论(0) 推荐(0)