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


int main()
{
	int a[] {0, 10, 20, 30, 40, 50, 60, 70, 80, 90};
	const size_t n {size(a)};      //the number of elements in the array a

	for (int i {0}; i < n; ++i) {
		cout << a[i] << "\n";  //does a hidden multiplication & addition
	}

	cout << "\n";	//Skip a line.

	for (int *p {a}; p < a + n; ++p) {   //a means &a[0]; a+n means &a[n]
		cout << *p << "\n";   //does no hidden multiplication & addition
	}

	cout << "\n";	//Skip a line.

	/*
	Another notation for the above loop.
	begin(a) is another way of saying a.
	Therefore it is a pointer to an int.  ("it" stands for "iterator".)
	end(a) is another way of saying a+n.
	*/
	for (auto it {begin(a)}; it < end(a); ++it) {
		cout << *it << "\n";
	}

	return EXIT_SUCCESS;
}