#include <stdio.h>
 
int main()
{
	int a = 5, b = 10, c = 20, d = 40;
 
	int *p1;        // Puntero a entero
	int *p2[2];	// Array de punteros a enteros
	int *p3[2][2];  // Array de array de punteros a enteros
 
	p1 = &a;
	printf("*p1 = %d\n", *p1);  // imprime 5
 
	p2[0] = &a; p2[1] = &b;
	printf("*p2[0] = %d, *p2[1] = %d\n", *p2[0], *p2[1]); // imprime 5, 10
	printf("**p2 = %d, *(*p2+1) = %d\n", **p2, *(*p2+1)); // imprime 5, 10
 
	p3[0][0] = &c; p3[1][1] = &d;
	printf("*p3[0][0] = %d, *p3[0][1] = %d\n", *p3[0][0], *p3[1][1]);  // imprime 20, 40
	printf("***p3 = %d, **(*(p3+1)+1) = %d\n", ***p3, **(*(p3+1)+1));  // imprime 20, 40
 
	return 0;
}