2018年4月14日
CF 472 div1 D. Contact ATC
摘要： ``` include include include include include include include include include include const int N = 1e5 + 5; struct fraction { long long num, deno; temp 阅读全文
posted @ 2018-04-14 23:19 basasuya 阅读(181) 评论(0) 推荐(0) 编辑