PAT 1082 Read Number in Chinese (25 分)

测试点0格式错误QAQ，死活找不到，这题格式是真的难搞、、

#include
using namespace std;
string num[10]={"ling","yi","er","san","si","wu","liu","qi","ba","jiu"};
string unit[5]={"Yi","Wan","Shi","Bai","Qian"};
bool flag1 = false;
int main(){
    string s;
    string calcu(string s);
    cin>>s;
    if(s=="0"){cout<8){
        cout<4){
        string a=s.substr(0,s.length()-4);
        a = calcu(a);
        if(a!=""){
            a=a.substr(1,a.length());
          cout<1){
                result+=' '+num[s[i]-'0']+' '+unit[s.length()-i];
            }else{
                result+=' '+num[s[i]-'0'];
            }
            pre=false;
        } 
    }
    return result;
}