/*
 * Read some integers into an array, then echo them, using pointers.
 */
#include <iostream>

using namespace std;

const int ARRMAX = 100;

int main()
{

	// Read them in.
	int arr[ARRMAX];	/* Array of numbers. */
	int *scan = arr;
	cout << "Enter some integers: " << endl;
	while(cin >> *scan)
		++scan;
	int *end = scan;

	// Print them back out again.
	cout << "===============" << endl;
	for(scan = arr; scan < end; ++scan) {
		cout << *scan << " ";
	}
	cout << endl;

	// Array iterators can be compared, the result reflecting their
	// position, and they can incremented by numbers other than 1.
	// Here, we go up the even-numbered ones, then the odd ones.
	scan = arr; 
	while(scan < end) {
		std::cout << *scan;
		scan += 2;
		if(scan < end) {
			std::cout << " ";
		}
	}
	std::string sep = "|";
	for(scan = arr + 1; scan < end; scan += 2) {
		std::cout << sep << *scan;
		sep = " ";
	}
	std::cout << "\n===============" << std::endl;
}