2017年10月31日
[USACO09OPEN]滑雪课Ski Lessons
摘要： 题目描述Farmer John wants to take Bessie skiing in Colorado. Sadly, Bessie is not really a very good skier.Bessie has learned that the ski... 阅读全文
posted @ 2017-10-31 22:22 Gxyhqzt 阅读(162) 评论(0) 推荐(0)