2020年4月14日
R Ants---------思维题
摘要： "Ants" An army of ants walk on a horizontal pole of length l cm, each with a constant speed of 1 cm/s. When a walking ant reaches an end of the pole, 阅读全文
posted @ 2020-04-14 19:03 Shawk 阅读(106) 评论(0) 推荐(0)