2019年3月9日
[思维]Colorful Hats
摘要： 题目描述 There are N cats. We number them from 1 through N.Each of the cats wears a hat. Cat i says: "there are exactly ai different colors among the N−1 阅读全文
posted @ 2019-03-09 11:17 l..q 阅读(293) 评论(0) 推荐(0)