2015年8月14日
codeforces 232D Fence
摘要： John Doe has a crooked fence, consisting ofnrectangular planks, lined up from the left to the right: the plank that goesi-th(1 ≤ i ≤ n)(from left to r... 阅读全文
posted @ 2015-08-14 10:23 chenyushuo 阅读(284) 评论(0) 推荐(0)