// Fig. 7.9: fig07_09.cpp
// Bar chart printing program.
#include <iostream>
using std::cout;
using std::endl;

#include <iomanip>
using std::setw;

int main()
{
   const int arraySize = 11;
   int n[ arraySize ] = { 0, 0, 0, 0, 0, 0, 1, 2, 4, 2, 1 };

   cout << "Grade distribution:" << endl;

   // for each element of array n, output a bar of the chart
   for ( int i = 0; i < arraySize; i++ ) 
   {
      // output bar labels ("0-9:", ..., "90-99:", "100:" )
      if ( i == 0 )
         cout << "  0-9: ";
      else if ( i == 10 )
         cout << "  100: ";
      else
         cout << i * 10 << "-" << ( i * 10 ) + 9 << ": ";

      // print bar of asterisks
      for ( int stars = 0; stars < n[ i ]; stars++ )
         cout << '*';

      cout << endl; // start a new line of output
   } // end outer for

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

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