#include <iostream>
#include <fstream>
#include <iomanip>
using namespace std;

int main()
{
	const int NUM_DIVS = 3;           // Number of divisions
   const int NUM_QTRS = 4;           // Number of quarters
	double sales[NUM_DIVS][NUM_QTRS]; // 2D array with 3 rows & 4 columns
	double totalSales = 0;	          // Accumulates total sales
	int div, qtr;			             // Loop counters
	ifstream datafile;                // Used to read data from a file
	
   datafile.open("sales2.dat");
   if (!datafile)
      cout << "Error opening data file.\n";
   else
   {
      cout << fixed << showpoint << setprecision(2);
      cout << "Quarterly Sales by Division\n\n";

	   // Nested loops are used to fill the array with quarterly
		// sales figures for each division and to display the data
		for (div = 0; div < NUM_DIVS; div++)
	   {	for (qtr = 0; qtr < NUM_QTRS; qtr++)
		   {
			   cout << "Division "  << (div + 1) 
                 << ", Quarter " << (qtr + 1) << ": $";
            datafile >> sales[div][qtr];
            cout << sales[div][qtr] << endl;
		   }
		   cout << endl; // Print blank line.
	   }
      datafile.close();

	   // Nested loops are used to add all the elements
	   for (div = 0; div < NUM_DIVS; div++)
	   {	for (qtr = 0; qtr < NUM_QTRS; qtr++)
			   totalSales += sales[div][qtr];
	   }
      // Display the total
		cout << "The total sales for the company are: $";
	   cout << totalSales << endl;
   }
	
	return 0;
}