fig04_09.cpp

这是C＋＋编程经典的书上实例的源代码。 （英文名是《C＋＋ how to program》第3版）

// Fig. 4.9: fig04_09.cpp
// Student poll program
#include <iostream>

using std::cout;
using std::endl;

#include <iomanip>

using std::setw;

int main()
{
   const int responseSize = 40, frequencySize = 11;
   int responses[ responseSize ] = { 1, 2, 6, 4, 8, 5, 9, 7, 8,
       10, 1, 6, 3, 8, 6, 10, 3, 8, 2, 7, 6, 5, 7, 6, 8, 6, 7,
       5, 6, 6, 5, 6, 7, 5, 6, 4, 8, 6, 8, 10 };
   int frequency[ frequencySize ] = { 0 };

   for ( int answer = 0; answer < responseSize; answer++ )
      ++frequency[ responses[answer] ];

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

   for ( int rating = 1; rating < frequencySize; rating++ )
      cout << setw( 6 ) << rating
           << setw( 17 ) << frequency[ rating ] << endl;

   return 0;
}



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