Remove the Bracket
摘要：
题目链接 题目描述： RSJ has a sequence $a$ of $n$ integers $a_1,a_2,…,a_n$ and $a_n$ integer $s$. For each of $a_2,a_3,…,a_{n−1}$, he chose a pair of non-negat 阅读全文
posted @ 2023-02-01 11:00 KSzh 阅读(17) 评论(0) 推荐(0) 编辑