2020年4月6日
【每天一道PAT】1006 Sign In and Sign Out
摘要： At the beginning of every day, the first person who signs in the computer room will unlock the door, and the last one who signs out will lock the door 阅读全文
posted @ 2020-04-06 20:40 XinyuLee 阅读(151) 评论(0) 推荐(0)