How to print from an input file after being sorted

[Hedgehog Ninja]

In my class I had to make a program where it took the name of county and its tax rate from a input file and displays it sorted. Everytime I test it with an output file (which is not needed for this program) It would only show whatever was the last thing on the input file as a the 10th county and all the tax rates would be 0.00%.

#include<iostream>
#include<fstream>
#include<iomanip>
#include <stdlib.h>
using namespace std;

const int COUNTY_MAX = 10;
void sort(string county[], double tax_rate[]);

int main()
{
     string county[COUNTY_MAX];
     double tax_rate[COUNTY_MAX];
     int index = 0;
     ifstream input;
     ofstream output;
     string fname;
     //Intro
     cout << "Welcome to the Tennessee Sales Tax Report! \n";
     cout << "Enter input file name.\n";
     cin >> fname;
     //opening file of correct
     input.open(fname.c_str());
     
     if(input.fail())
     {
          cout << "Input file " << fname << " does not exist.\n";
	  exit(0);
     }
    /* else
     if (is_empty(fname))
     {
          cout << "Input file " << fname << " is empty.\n";
     }
 
     {
          return 0; 
     }*/
     while (input >> county[index]);
     {
          input >> tax_rate[index];
          index++;
     }
     //Close input file
     input.close(); 
     //Call function to sort arrays in descending order by tax_rate
     sort(county, tax_rate);
      
     output.open("Guard.txt");
    
      //Write file to output
     output << setw(15) << "COUNTY" << setw(15)<< "TAX RATE" << endl;
     output << "------------------------------------" << endl;
     for (index = 0; index<COUNTY_MAX; index++)
     {
          output << setw(15) << county[index] << setw(12) <<setprecision(2) << fixed <<  tax_rate[index] << endl;
     }
     
     //Close output file
     output.close();

     return 0;
}

//Function to sort both arrays in descendin order by tax_rate
void sort(string county[], double tax_rate[])
{
     for (int i=0; i<COUNTY_MAX; i++)
     {
          for (int j=i+1; j<COUNTY_MAX; j++)
          {
               if (tax_rate[i] < tax_rate[j])
               {
                    //Swap tax_rate
                    double temp = tax_rate[i];
                    tax_rate[i] = tax_rate[j];
                    tax_rate[j] = temp;

                    //Swap county
                    string t = county[i];
                    county[i]= county[j];
                    county[j]= t;
               }
          }
     }
}

     0.00
     0.00
     0.00
     0.00 
     0.00 
     0.00
     0.00
     0.00
     0.00
bleh 0.00 

[ne555]

     while (input >> county[index]); //look at that semicolon
     {
          input >> tax_rate[index];
          index++;
     }

[Hedgehog Ninja]

Wow, I can't believe that actually worked. I wonder why the compiler was accepting it like that.

[Hedgehog Ninja]

My code sorts it in ascending order, so how would I change the function at the end to do the opposite? Here is an example of what it's showing. (i know they are not real counties :P)

Milk 200.00%
Chocolate 160.00%
Fudge 2.00%