2017年7月26日
[USACO13OPEN]照片Photo
摘要： 题目描述 Farmer John has decided to assemble a panoramic photo of a lineup of his N cows (1 <= N <= 200,000), which, as always, are conveniently numbered 阅读全文
posted @ 2017-07-26 15:49 Z-Y-Y-S 阅读(635) 评论(0) 推荐(2)