摘要: 描述 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 game of Ul 阅读全文
posted @ 2020-07-16 18:32 麦客_zeng 阅读(163) 评论(0) 推荐(0)