2017年2月5日
USACO 5.1 Starry Night
摘要： High up in the night sky, the shining stars appear in clusters of various shapes. A cluster is a non-empty group of neighbouring stars, adjacent in ho 阅读全文
posted @ 2017-02-05 21:29 sigongzi 阅读(592) 评论(0) 推荐(0) 编辑