摘要: P2978 [USACO10JAN]下午茶时间Tea Time 题目描述 N (1 1 | \ | --> 1 | X | \ | \| |/ \| 4---5 4---5 ... 阅读全文
posted @ 2017-02-10 18:58 嘒彼小星 阅读(266) 评论(0) 推荐(0) 编辑
摘要: P2907 [USACO08OPEN]农场周围的道路Roads Around The Farm 题目描述 Farmer John's cows have taken an interest in exploring the territory around the farm. Initi... 阅读全文
posted @ 2017-02-10 00:26 嘒彼小星 阅读(287) 评论(0) 推荐(0) 编辑
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