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http://ch.vijos.org/Contest/%E6%B9%96%E5%8C%97%E7%9C%81%E9%98%9F%E4%BA%92%E6%B5%8B%20Week1/Problem/Show/%E4%BF%A1%E5%BF%83%E9%A2%98#include<stdio.h>#include<math.h>long long mod,t;long long sum(long long x,long long y){ t=x+y; if(x%2==0)x/=2;//x&1==0 不能用 else if(y%2==0)y/=2; else t/= 阅读全文
posted @ 2013-05-08 16:33 雨钝风轻 阅读(182) 评论(0) 推荐(0) 编辑