2018年8月1日
1008 Elevator (20)
摘要： The highest building in our city has only one elevator. A request list is made up with N positive numbers. The numbers denote at which floors the elev 阅读全文
posted @ 2018-08-01 12:33 王清河 阅读(109) 评论(0) 推荐(0) 编辑