摘要: A. Alex and a Rhombus 题目链接:http://codeforces.com/contest/1180/problem/A 题目: While playing with geometric figures Alex has accidentally invented a conc 阅读全文
posted @ 2019-06-29 16:05 branna 阅读(228) 评论(0) 推荐(0) 编辑