2020年5月21日
Pop Sequence
摘要： Given a stack which can keep M numbers at most. Push N numbers in the order of 1, 2, 3, ..., N and pop randomly. You are supposed to tell if a given s 阅读全文
posted @ 2020-05-21 21:53 qmzhna 阅读(113) 评论(0) 推荐(0)