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

int main()
{
	int i {10};
	int j {20};

	int *p {&i};       //p is born pointing to i, but this could change.
	p = &j;            //Allowed to do this, because p is not const.

	int *const q {&i}; //q always points to the same place.
	//q = &j ;         //Not allowed to this, because q is const.

	return EXIT_SUCCESS;
}