hdu 2629 Identity Card string类用于c的字符串函数上

    这几天做ACM Step，比较不错，在做一道题的时候，我用的是string，函数用的是strncmp，说参数不匹配，看了看函数原型，参数是const char *，而我用的是string，需要转换一下：

http://acm.hdu.edu.cn/showproblem.php?pid=2629 

 #include<iostream>

using   namespace  std;
int  main()
{
     int  n,i,temp;
     char  s[ 50 ];
     string  regional[ 8 ] = { " Zhejiang " , " Beijing " , " Taiwan " , " Hong Kong " , " Macao " , " Tibet " , " Liaoning " , " Shanghai " };
     string  id[ 8 ]  =  { " 33 " ,  " 11 " ,  " 71 " ,  " 81 " ,  " 82 " ,  " 54 " ,  " 21 " ,  " 31 " };
    cin >> n;

                  while (n -- )
                 {
                           cin >> s;
                           cout << " He/She is from  " ;
                            for (i = 0 ;i < 8 ;i ++ )
                           {
                                             if  (strncmp(s, id[i].c_str(),  2 )  ==   0 )
                                           {
                                                            cout << regional[i];
                                                             break ;
                                           }
                           }


                     cout << " ,and his/her birthday is on  " << s[ 10 ] << s[ 11 ] << " , " << s[ 12 ] << s[ 13 ] << " , " << s[ 6 ] << s[ 7 ] << s[ 8 ] << s[ 9 ] << "  based on the table. " << endl;

             }

}