// This program totals and averages the sales figures for any
// number of days. The figures are stored in a dynamically
// allocated array.
#include <iostream>
#include <iomanip>
using namespace std;

int main()
{
    double *sales = nullptr,    // To dynamically allocate an array
    total = 0.0,                // Accumulator
    average;                    // To hold average sales
    int numDays,                // To hold the number of days of sales
        count;                  // Counter variable

    // Get the number of days of sales.
    cout << "How many days of sales figures do you wish ";
    cout << "to process? ";
    cin >> numDays;

    // Dynamically allocate an array large enough to hold
    // that many days of sales amounts.
    sales = new double[numDays];

    // Get the sales figures for each day.
    cout << "Enter the sales figures below.\n";
    for (count = 0; count < numDays; count++)
    {
        cout << "Day " << (count + 1) << ": ";
        cin >> sales[count];
    }

    // Calculate the total sales
    for (count = 0; count < numDays; count++)
    {
        total += sales[count];
    }

    // Calculate the average sales per day
    average = total / numDays;

    // Display the results
    cout << fixed << showpoint << setprecision(2);
    cout << "\n\nTotal Sales: $" << total << endl;
    cout << "Average Sales: $" << average << endl;

    // Free dynamically allocated memory
    delete [] sales;
    sales = nullptr; // Make sales a nullptr.

    return 0;
}