基础训练 数的读法

数的读法

#include<iostream>
#include<string.h>
#include<vector>
using namespace std;
string p[]={"ling", "yi", "er", "san", "si", "wu", "liu", "qi", "ba",
				"jiu", "shi", "bai", "qian", "wan"};
int main(){
	string s, str1, str2, str3, ans;
	cin>>s; 
	int cnt=s.size();
	for(int i=0; i<s.size(); i++, cnt--){
		if(s[i]!='0'){
			if(i-1>=0&&s[i-1]=='0')
				ans=ans+p[0]+" ";
			ans=ans+p[s[i]-'0']+" ";
			switch(cnt%4){
				case 0: ans+="qian "; break;
				case 3: ans+="bai "; break;
				case 2: ans+="shi "; break;
				default: break;
			}
		}	
		switch(cnt){
			case 9: ans+="yi "; break;
			case 5: ans+="wan "; break;
			default: break;
		}
	}
	if(ans.substr(0, 6)=="yi shi")
		ans=ans.substr(3, ans.size()-1);
	cout<<ans<<endl;
	return 0;
}