摘要: 原题 You are given an array of nn integers \(a1, a2, ..., an\), and a set bb of kk distinct integers from $1$ to \(n\). In one operation, you may choose 阅读全文
posted @ 2020-10-29 16:15 kurum! 阅读(110) 评论(2) 推荐(0) 编辑