Read Number in Chinese (25)

Given an integer with no more than 9 digits, you are supposed to read it in the traditional Chinese way.  
Output "Fu" first if it is negative.  
For example, -123456789 is read as "Fu yi Yi er Qian san Bai si Shi wu Wan liu Qian qi Bai ba Shi jiu".  
Note: zero ("ling") must be handled correctly according to the Chinese tradition. 
For example, 100800 is "yi Shi Wan ling ba Bai".

输入描述:

Each input file contains one test case, which gives an integer with no more than 9 digits.

输出描述:

For each test case, print in a line the Chinese way of reading the number.  
The characters are separated by a space and there must be no extra space at the end of the line.

输入例子:

-123456789

输出例子:

Fu yi Yi er Qian san Bai si Shi wu Wan liu Qian qi Bai ba Shi jiu
将阿拉伯数字转换为汉语拼音的数字读法，数字最大到亿位。做这道题之前必须要把各种读数的情况给分清楚

#include <iostream>
#include <string>
#include <vector>
using namespace std;
string num[10] = { "ling","yi", "er", "san", "si", "wu", "liu", "qi", "ba", "jiu" };
string c[6] = { "Ge","Shi", "Bai", "Qian", "Yi", "Wan" };
int J[] = {1, 10, 100, 1000, 10000, 100000, 1000000, 10000000, 100000000};

int main()
{   
    freopen("in.txt","r",stdin);
    int n;
    cin >> n;
    if (n == 0)
    {
        cout << "ling";
        return 0;
    }
    if (n < 0)
    {
        cout << "Fu ";
        n = -n;
    }
    int part[3];
    part[0]= n / 100000000;
    part[1]= (n % 100000000) / 10000;
    part[2] = n % 10000;
    bool zero = false; //是否在非零数字前输出合适的ling
    int printCnt = 0; //用于维护单词前没有空格，之后输入的单词都在前面加一个空格。
    for (int i = 0; i < 3; i++)
    {
        int temp = part[i]; //三个部分，每部分内部的命名规则都一样，都是X千X百X十X
        for (int j = 3; j >= 0; j--)
        {
            int curPos = 8 - i * 4 + j; //当前数字的位置
            if (curPos >= 9) continue; //最多九位数
            int cur = (temp / J[j]) % 10;//取出当前数字
            if (cur != 0)
            {
                if (zero)
                {
                    printCnt++ == 0 ? cout<<"ling" : cout<<" ling";
                    zero = false;
                }
                if (j == 0)
                    printCnt++ == 0 ? cout << num[cur] : cout << ' ' << num[cur]; //在个位，直接输出
                else
                    printCnt++ == 0 ? cout << num[cur] << ' ' << c[j] : cout << ' ' << num[cur] << ' ' << c[j]; //在其他位，还要输出十百千
            }
            else
            {
                if (!zero&&j != 0 && n / J[curPos] >= 10) zero = true;   //注意100020这样的情况,0最小也要从10位开始才读，10位之前如果有0要读出来，肯定n/j[curpos]>=10
            }
        }
        if (i != 2 && part[i]>0) cout << ' ' << c[i + 4]; //处理完每部分之后，最后输出单位，Yi/Wan
    }
    return 0;
}