2019年3月13日
Codeforces 1091C New Year and the Sphere Transmission（等差数列与STL set）
摘要： There are nn people sitting in a circle, numbered from 11 to nn in the order in which they are seated. Tha... 阅读全文
posted @ 2019-03-13 00:02 完全墨染的樱花 阅读(232) 评论(0) 推荐(0)