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 @ 2016-06-08 10:57 北门煎饼东门串儿 阅读(136) 评论(0) 推荐(0) 编辑