2017年6月21日
USACO Healthy Holsteins
摘要： 首先看题目： Farmer John prides himself on having the healthiest dairy cows in the world. He knows the vitamin content for one scoop of each feed type and t 阅读全文
posted @ 2017-06-21 21:55 软件学院菜菜的万众 阅读(280) 评论(0) 推荐(0)