摘要: 题目:Givennnon-negative integersa1,a2, ...,an, where each represents a point at coordinate (i,ai).nvertical lines are drawn such that the two endpoints ... 阅读全文
posted @ 2016-01-15 23:46 很好玩 阅读(194) 评论(0) 推荐(0) 编辑