// Fig. 7.10: fig07_10.cpp
// Roll a six-sided die 6,000,000 times.
#include <iostream>
using std::cout;
using std::endl;

#include <iomanip>
using std::setw;

#include <cstdlib>
using std::rand;
using std::srand;

#include <ctime>
using std::time;

int main()
{
   const int arraySize = 7; // ignore element zero
   int frequency[ arraySize ] = { 0 };

   srand( time( 0 ) ); // seed random number generator

   // roll die 6,000,000 times; use die value as frequency index
   for ( int roll = 1; roll <= 6000000; roll++ )       
      frequency[ 1 + rand() % 6 ]++;

   cout << "Face" << setw( 13 ) << "Frequency" << endl;

   // output each array element's value
   for ( int face = 1; face < arraySize; face++ )  
      cout << setw( 4 ) << face << setw( 13 ) << frequency[ face ] 
         << endl;

   return 0; // indicates successful termination
} // end main



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