HDU1727——字符串处理

#include<iostream>
#include<string>
using namespace std;
const string strgDigital[20]={"zero","one","two","three","four","five","six","seven","eight","nine",
"ten","eleven","twelve","thirteen","fourteen","fifteen","sixteen","seventeen","eighteen","nineteen"};
const string strsDigital[10]={"","","twenty","thirty","forty","fifty","sixty","seventy","eighty","ninety"};
int ch[6];
string strs;

int main()
{
int T,i,len;
while(cin>>T)
{
memset(ch,0,sizeof(ch));
strs="";
i=0;
while(T!=0)
{
ch[i++] = T%10;
T/=10;
}
len = i;

if(ch[1]<=1)  //后两位<20
{
if(ch[0]==0&&ch[1]==0&&len>1)  //排除后两位为00
{}
else
{
strs=strgDigital[ch[1]*10+ch[0]];
}
}
else //后两位>=20
{
strs=strsDigital[ch[1]];
if(ch[0]!=0)
strs=strs+'-'+strgDigital[ch[0]];
}
if(ch[2]!=0)
{
if(ch[0]==0&&ch[1]==0)  //100
strs=strgDigital[ch[2]]+" hundred";
else
strs=strgDigital[ch[2]]+" hundred and "+strs;
}
if(ch[3]!=0)
{
if(ch[0]==0&&ch[1]==0&&ch[2]==0)  //1000
strs=strgDigital[ch[3]]+" thousand";
else
strs=strgDigital[ch[3]]+" thousand and "+strs;
}
cout<<strs<<endl;

}
return 0;
}