Write a Program in C++ That Poll Analysis Program

// Poll analysis program.

#include <iostream>

#include <iomanip>

#include <array>

using namespace std;

int main()

{

   // define array sizes

   const size_t responseSize = 20; // size of array responses

   const size_t frequencySize = 6; // size of array frequency

   // place survey responses in array responses

   const array< unsigned int, responseSize > responses = 

      { 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

   array< unsigned int, frequencySize > frequency = {};

   // for each answer, select responses element and use that value 

   // as frequency subscript to determine element to increment

   for ( size_t answer = 0; answer < responses.size(); ++answer )

      ++frequency[ responses[ answer ] ];

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

   // output each array element's value

   for ( size_t rating = 1; rating < frequency.size(); ++rating )

      cout << setw( 6 ) << rating << setw( 17 ) << frequency[ rating ] 

         << endl;

} // end main