2019年4月30日
codeforces269B
摘要： Greenhouse Effect CodeForces - 269B Emuskald is an avid horticulturist and owns the world's longest greenhouse — it is effectively infinite in length. 阅读全文
posted @ 2019-04-30 23:28 yccdu 阅读(233) 评论(0) 推荐(0) 编辑