2019年4月7日
ZOJ - 4024 Peak
摘要： A sequence of integers is called a peak, if and only if there exists exactly one integer such that , and for all , and for all . Given an integer sequ 阅读全文
posted @ 2019-04-07 22:08 明霞 阅读(274) 评论(0) 推荐(0) 编辑