摘要: #include<cstdio> #include<cstring> #include<algorithm> #define LL long long using namespace std; const int M=2e5+7; int read(){ int ans=0,f=1,c=getcha 阅读全文
posted @ 2019-11-16 14:56 友人Aqwq 阅读(156) 评论(0) 推荐(0) 编辑