Help me understand with a code

Question

difference between
int const*p1 and const int *p1

Answer 1

const can be either side of the type.
const int * p1 is a pointer to a constant integer
int const * p1 is the same
(whereas:
int * const p2 is a constant pointer to an integer whose value can change)

Answer 2

no difference

Answer 3

thanks to both of you my doubt is clear now