摘要：
描述 Farmer John completed his new barn just last week, complete with all the latest milking technology. Unfortunately, due to engineering problems, all 阅读全文
摘要：
描述 FJ has moved his K (1 <= K <= 30) milking machines out into the cow pastures among the C (1 <= C <= 200) cows. A set of paths of various lengths ru 阅读全文