2019年9月23日
Codeforces 777E：Hanoi Factory（贪心）
摘要： Of course you have heard the famous task about Hanoi Towers, but did you know that there is a special factory producing the rings for this wonderful g 阅读全文
posted @ 2019-09-23 13:07 友人-A 阅读(276) 评论(0) 推荐(0) 编辑