#include <iomanip>
#include <iostream>
#include <string>

using namespace std;

// INCLUDE PROTOTYPES
int* create_array(int);
void enter_data(int*, int);
float find_average(int*, int);
void show_array(int*, int);

int main()
{
	int *dyn_array;
	int students;
	float avrg;

	do
	{
		cout << "How many students will you enter? ";
		cin >> students;
	}while ( students <= 0 );

	dyn_array = create_array( students );
		//this function creates a dynamic array
		//and returns its pointer
	enter_data( dyn_array, students );
		//use 'pointer' notation in this function to
		//access array elements
		//accept only numbers 0-100 for movie seen
	avrg = find_average( dyn_array, students );
		//use 'pointer' notation in this function to
		//access array elements


	cout << "The array is:" << endl << endl;
	show_array( dyn_array, students);

	cout << endl;
	cout << "The average is " << avrg << ".\n";

	delete [] dyn_array;
	return 0;
}

int* create_array( f_students )
{
	int* f_array = new int[ f_students ];
	return f_array;
}

void enter_data(int* f_dyn_array, int f_students)
{
	for(int i = 0; i < f_students; i++)
	{
	cout << "How many movies did student" << i + 1 << "watch?: ";
	cin >> f_dyn_array[i];
	}
		while(f_dyn_array[i] < 0 || f_dyn_array[i] > 100)
		{
		cout << "Please enter a number between 0 and 100!";
		cin >> f_dyn_array[i];
		}
}

float find_average(int* f_dyn_array, int f_students)
{
int sum = 0;
float avrg;

	for(int i = 0; i < f_students; i++)
	{
	sum = sum + f_dyn_array[i];
	}

avrg = sum/f_students;

return avrg;
}

void show_array(int* f_dyn_array, int f_students)
{
cout << "Student        Movies" << "\n";

	for(int i = 0; i < f_students; i++)
	{
	cout << i + 1 << "     " << f_dyn_array[i] << "/n";
	}
}