记录编号	123720	评测结果	AWWWWWWWWWWWWWWWW
题目名称	[Ural 1396] 最大值2	最终得分	5
用户昵称	HouJikan	是否通过	未通过
代码语言	C++	运行时间	3.303 s
提交时间	2014-09-28 19:33:16	内存使用	0.31 MiB

#include <iostream>
#include <cstring>
#include <cstdio>
#include <cstdlib>
#include <cmath>
#include <algorithm>
#include <queue>
#include <stack>
#include <map>
#include <set>
#include <list>
#include <vector>
#include <ctime>
#include <iterator>
#include <functional>
#define pritnf printf
#define scafn scanf
#define For(i,j,k) for(int i=(j);i<=(k);(i)++)
using namespace std;
typedef long long LL;
typedef unsigned int Uint; 
const int INF=0x7ffffff;
//==============struct declaration==============

//==============var declaration=================
map <unsigned long long,unsigned long long>f;
unsigned long long ans,n;
//==============function declaration============
unsigned long long F(unsigned long long x);
//==============main code=======================
int main()
{  
  string FileName="Maximum";//程序名 
  string FloderName="COGS";//文件夹名 
  freopen((FileName+".in").c_str(),"r",stdin);
  freopen((FileName+".out").c_str(),"w",stdout);
#ifdef DEBUG  
  system(("cp C:\\Users\\Administrator\\Desktop\\"+FloderName+"\\standard.cpp C:\\Users\\Administrator\\Desktop\\"+FloderName+"\\submit.txt").c_str());
  clock_t Start_Time=clock();
#endif    
  ios::sync_with_stdio(false);
  f.clear();
  f[1]=1;f[0]=0;
  while (cin>>n&&n){
    if (n%2==0)
      n--;
    ans=F(n);
    cout<<ans<<endl;
  }
#ifdef DEBUG  
  clock_t End_Time=clock();
  cout<<endl<<endl<<"Time Used: "<<double(End_Time-Start_Time)*1000/(CLOCKS_PER_SEC)<<" Ms"<<endl;
#endif    
  return 0;
}
//================fuction code====================
unsigned long long F(unsigned long long x)
{
   unsigned long long t;
   if (f[x]!=0)
     return f[x];
   if (x&1)
     t= f[x]=F(x/2)+F(x/2+1);
   if ((x&1)==0)
     t=f[x]=F(x/2);
   return t;
}