// Examples of array use

#include <iostream>
using namespace std;

int main()
{
   const int SIZE = 15;
   int i;			// loop counter
   int sum = 0;			// accumulator variable
   int list[SIZE];

   /* initialize to a pattern, with a for-loop */
   for (i = 0; i < SIZE; i++)
	list[i] = 3 * i + 1;


   /* print contents */
   cout << "\nThe list: ";
   for (i = 0; i < SIZE; i++)
	cout << list[i] << ' ';

   /* Let user type new values */
   cout << "\nPlease enter " << SIZE << " new array elements: ";
   for (i = 0; i < SIZE; i++)
	cin >> list[i];

   /* print contents */
   cout << "\nThe list: ";
   for (i = 0; i < SIZE; i++)
	cout << list[i] << ' ';

   /* print contents backwards */
   cout << "\nThe list backwards: ";
   for (i = SIZE-1; i >= 0; i--)
	cout << list[i] << ' ';

   /* Now add the array contents */
   for (i = 0; i < SIZE; i++)
	sum = sum + list[i];

   cout << "\nThe sum of the array elements is: " << sum << '\n';

   return 0;
}