摘要: Marketing Scheme Reverse Binary Strings Chef Monocarp Minimal Height Tree Make It Increasing Death DBMS Marketing Scheme 题意: 给出一段区间$[l,r]$,问存不存在一个正整数$ 阅读全文
posted @ 2020-10-28 23:44 Aya_Uchida 阅读(68) 评论(0) 推荐(0) 编辑