摘要: A:http://codeforces.com/contest/1399/problem/A 解析: 不多说了,直接sort,判是否存在相邻差>1 #include<iostream> #include<cstring> #include<algorithm> #include<stack> usi 阅读全文
posted @ 2020-08-06 22:06 liyexin 阅读(152) 评论(0) 推荐(0)