摘要: Codeforces Round #625 (Div. 1, based on Technocup 2020 Final Round) A \[ \large\begin{aligned} c_{i+1}-c_i&=b_{c_{i+1}}-b_{c_i},\forall i \in [i,m) \\ 阅读全文
posted @ 2020-10-17 21:33 lhm_liu 阅读(196) 评论(0) 推荐(0) 编辑