摘要: #include<cstdio> #define mid(l,r) ((l+r)/2) #define MXN 10000+1 #define nil 0 #define alpha 0.7f int read(){ int x=0; bool w=1; char c=getchar(); whil 阅读全文
posted @ 2017-12-26 17:02 Halifuda 阅读(140) 评论(0) 推荐(0) 编辑