#include <stdio.h> int main(void) { int x = 99; int *p1, *p2; p1 = &x; p2 = p1; /* print the value of x twice */ printf("Values at p1 and p2: %d %d\n", *p1, *p2); /* print the address of x twice */ printf("Addresses pointed to by p1 and p2: %p %p", p1, p2); return 0; }