摘要: Student Ilya often skips his classes at the university. His friends criticize him for this, but they don’t know that Ilya spends this time not watchin 阅读全文
posted @ 2019-01-21 21:09 Minun 阅读(176) 评论(0) 推荐(0)
摘要: Mr. Panda lives in Pandaland. There are many cities in Pandaland. Each city can be treated as a point on a 2D plane. Different cities are located in d 阅读全文
posted @ 2019-01-21 14:50 Minun 阅读(178) 评论(0) 推荐(0)