// Fig. 7.11: fig07_11.cpp
// Poll analysis program.
#include <iostream>
#include <iomanip>
using namespace std;

int main()
{
   // define array sizes
   const int responseSize = 20; // size of array responses
   const int frequencySize = 6; // size of array frequency

   // place survey responses in array responses
   const int responses[ responseSize ] = { 1, 2, 5, 4, 3, 5, 2, 1, 3,
      1, 4, 3, 3, 3, 2, 3, 3, 2, 2, 5 };

   // initialize frequency counters to 0
   int frequency[ frequencySize ] = {};

   // for each answer, select responses element and use that value 
   // as frequency subscript to determine element to increment
   for ( int answer = 0; answer < responseSize; ++answer )
      ++frequency[ responses[ answer ] ];

   cout << "Rating" << setw( 17 ) << "Frequency" << endl;

   // output each array element's value
   for ( int rating = 1; rating < frequencySize; ++rating )
      cout << setw( 6 ) << rating << setw( 17 ) << frequency[ rating ] 
         << endl;
} // end main


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