Finding the Largest

[PDB1982]

How do I make an array to find the largest portion of another array?

I am trying to find the candidate that received the largest amount of votes from the following file:

Johnson 5000
Miller 4000
Duffy 6000
Robinson 2500
Ashtony 1800

here is my code:

#include <iostream>
#include <string>
#include <iomanip>
#include <fstream>
using namespace std;


int main()
{
   string candidates[6];
   double votes[6];
   double sum = 0.0;

   ifstream inFile("candidates.txt");

   for ( int i = 0; i < 6; ++i )
   {
	  
	  
      if ( inFile >> candidates[i] >> votes[i] )
      {
		sum = sum + votes[i];
      }
      else
      {
         break;
      }
   }
   cout << endl;
   
   cout << "Candidate      Votes      % of Total" << endl;

   cout << setprecision(0) << candidates[0] << setw(5) << "\t" << votes[0]
		<< setw(15) << setprecision(4) << ((votes[0] / sum) * 100) << endl;
   cout << setprecision(0) << candidates[1] << setw(5) << "\t" << votes[1]
		<< setw(15) << setprecision(4)<< ((votes[1] / sum) * 100) << endl;
   cout << setprecision(0) << candidates[2] << setw(5) << "\t" << votes[2]
		<< setw(15) << setprecision(4)<< ((votes[2] / sum) * 100) << endl;
   cout << setprecision(0) << candidates[3] << setw(5) << "\t" << votes[3]
		<< setw(15) << setprecision(4)<< ((votes[3] / sum) * 100) << endl;
   cout << setprecision(0) << candidates[4] << setw(5) << "\t" << votes[4]
		<< setw(15) << setprecision(3) << ((votes[4] / sum) * 100) << endl;

  
   cout << "\n" << endl;
   cout << setprecision(0) << "Total " << setw(5) << "\t" << sum 
	   << "\n" << endl;

}

[mrnutty]

using structs or classes would be easier and more elegant. What do
you think?

[Dave Sinkula]

Keep track of the index of the highest value while taking input. Initialize to the first element:

int hi = 0;

When you find a new highest value, capture the index:

if ( votes[i] > votes[hi] )
         {
            hi = i;
         }

The winner is candidate[hi] .

[Clinton Portis]

By doing this, you have established a direct relationship between the two arrays:

//We can assume that 'votes[3]' corrosponds to 'candidates[3]', for example.
if ( inFile >> candidates[i] >> votes[i] )

So all you really need to do is extract the largest value from the votes[] array:

int index = 0;
int max = 0;

for(int i=0; i<6; i++)
{
     if(votes[i] > max)
     {
          max = votes[i];
          index = i;         
     }
}

cout << "The winner is " << candidates[index] << " with a winning vote count of " << votes[index];