2017年7月24日
2590: [Usaco2012 Feb]Cow Coupons
摘要： 2590: [Usaco2012 Feb]Cow Coupons Description Farmer John needs new cows! There are N cows for sale (1 <= N <= 50,000), and FJ has to spend no more tha 阅读全文
posted @ 2017-07-24 13:51 友人Aqwq 阅读(364) 评论(0) 推荐(0)