2013年7月25日
Balanced Lineup
摘要： Description For the daily milking, Farmer John's N cows (1 ≤ N ≤ 50,000) always line up in the same order. One day Farmer John decides to organize a g 阅读全文
posted @ 2013-07-25 16:26 1002liu 阅读(179) 评论(0) 推荐(0) 编辑