//James Waldman
//4/20/18
//Homework 4

#include <iostream>
using namespace std;

void getData(int *, int);
double getAvg(int *, int);
double getTotal(int *, int);

int main()
{
    int *Movies = NULL;
    int SIZE;

    cout << "How many students were surveyed? " << endl;
    cin >> SIZE;
    while (SIZE < 0) {
        cout << "Error. Try again." << endl;
        cin >> SIZE;
    }
    Movies = new int[SIZE];
    getData(Movies, SIZE);
    cout << "The number of Movies seen: " << endl;
    cout << getTotal(Movies, SIZE) << endl;
    cout << "The average number of Movies seen: " << endl;
    cout << getAvg(Movies, SIZE) << endl;

    delete Movies;
    Movies = NULL;

    system("pause");
    return 0;
}

void getData(int *array, int size)
{
    cout << "How many movies did they watch?" << endl;
    for (int i = 0; i < size; i++)
    {
        cout << "Student " << (i + 1) << ": ";
        cin >> *(array + i);
        while (*array + i < 0) {
            cout << "Error. Try again." << endl;
            cin >> *(array + i);
        }
    }
}

double getAvg(int *array, int size)
{
    double total = 0;
    double avg;
    for (int i = 0; i < size; i++)
    {
        total += *(array + i);
    }
    avg = total / size;
    return avg;
}

double getTotal(int *array, int size)
{
    double total = 0;
    double *total1 = NULL;
    for (int i = 0; i < size; i++)
    {
        total += *(array + i);

    }
    return total;
}