摘要: POI2011 Tree Rotations 给定一个n include using namespace std; typedef long long LL; inline void read(int &x){ char ch; x=0; for (; ch=getchar(), !isdigit( 阅读全文
posted @ 2018-08-05 11:04 pechpo 阅读(226) 评论(0) 推荐(0) 编辑