#include <iostream>
#include <cstdlib>
using namespace std;

void f(int *first, int *last);

int main()
{
	int a[] {0, 10, 20, 30, 40, 50, 60, 70, 80, 90};
	size_t n {size(a)};     //the number of elements in the array
			     //The last element in the array is a[n-1], not a[n].

	f(a, a + n);         //a means &a[0]; a+n means &a[n]
	cout << "\n";        //Skip a line.
	f(begin(a), end(a)); //Easier way to do the same thing: don't need n.
			     //begin(a) means &a[0]; end(a) means &a[n]

	return EXIT_SUCCESS;
}

void f(int *first, int *last) //Output all the elements from first to just before last
{
	for (; first < last; ++first) {
		cout << *first << " ";
	}
	cout << "\n";
}