#include <stdio.h>

int main()
{
    double a = 1.1;
    double b = 1.3;
    double *p = &a;
    printf("%p\n",p);
    p = &b;
    printf("%p\n",p);

    return 0;
}

#include <stdio.h>

int main()
{
    double a = 1.1;
    double b = 1.3;
    double *p = &a;
    printf("%p\n",p);
    p = &b;
    printf("%p\n",p);

    return 0;
}