int vals[] = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 0 };
	vector<int> numbers(vals, vals + 10);

	vector<int>::iterator       start = numbers.begin();
	vector<int>::reverse_iterator end = numbers.rbegin();
	
	while (start != end.base() && start != (end + 1).base())
		swap(*(start++), *end++);

	for (int i : numbers)
		cout << i << endl;