今天看到個帖子，感覺有點意思。。。

#include<iostream>
#include<string>
#include <vector>
using namespace std;
int get(string str);
string str1[]={"zero","one","two","three","four","five","six","seven","eight","nine","ten","eleven","twelve","thirteen"
,"fourteen","fifteen","sixteen","seventeen","eighteen","nineteen","twenty","thirty","forty","fifty","sixty","seventy","eighty","ninety","hundred","thousand","million"};
int str2[]={0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,30,40,50,60,70,80,90,100,1000,1000000}; 
int main()
{
	int sign;//標記符號  
	int sum=0,hsum=0,tsum=0,msum=0;
	char chTemp;
	string str;
	vector<int> vecValue;
	//vector<int>::iterator vecIter;
	
	while(1)//翻譯一組資料
	{
		cin>>noskipws>>chTemp;
		str+=chTemp;
		if ((str[str.length()-1]=='\n')&&(str[str.length()-2]!='\n')&&(str.length()>1))
		{
			str=str.substr(0,str.length()-1);
			string strValue;
			int iPos=str.find_first_of(' ');
			if(str.substr(0,8)=="negative")
			{
				sign=-1;
			}
			else
			{
				sign=1;
			}
			while (iPos>=0) 
			{
				strValue=str.substr(0,str.find_first_of(' '));
				str=str.substr(iPos+1,str.length()-strValue.length());
				
				if(strValue=="hundred")
				{
					hsum=sum*100;
					sum=0;
				}
				else if(strValue=="thousand")
				{
					tsum=(hsum+sum)*1000;
					hsum = 0;
					sum=0;
				}
				else if(strValue=="million")
				{
					msum=(hsum+tsum+sum)*1000000;
					hsum=tsum=0;
					sum=0;
				}
				else 
				{
					sum+=get(strValue);
				}
				
				iPos=str.find_first_of(' ');
			}
			
			if(str=="hundred")
			{
				hsum=sum*100;
				sum=0;
			}
			else if(str=="thousand")
			{
				tsum=(hsum+sum)*1000;
				hsum = 0;
				sum=0;
			}
			else if(str=="million")
			{
				msum=(hsum+tsum+sum)*1000000;
				hsum=tsum=0;
				sum=0;
			}
			else 
			{
				sum+=get(str);
			}
			
			sum+=(hsum+tsum+msum);
			sum*=sign;
			//cout<<(sign)*(sum)<<endl;//這裡是每輸入一行，就列印翻譯後的結果
			vecValue.push_back(sum);
			str.erase(str.begin(),str.end());
			sum=0;hsum=0;tsum=0;msum=0;
		}
		
      	if ((str[str.length()-1]=='\n')&&(str.length()==1))
		{
			break;
		}
	}
	for (int i=0;i<vecValue.size();i++)
	{
		cout<<vecValue[i]<<endl;//這裡是輸入所有行之後，統一列印翻譯的結果
	}

	return 0;
}
 
int get(string str)//翻譯
{
    int i;
    for(i=0;i<31;i++)
        if(str==str1[i])
            break;
		return str2[i];
}