What's the difference between the line 1 and the l | CodeGalaxy.io

What's the difference between the line 1 and the line 2?

const int * p1;  //1
int const * p2;  //2

1 is a non-constant pointer to a constant variable int, 2 is a constant pointer to a non-constant variable int.
1 and 2 are identical, i.e. a non-constant pointer to a constant variable int.
1 and 2 are identical, i.e. a constant pointer to a non-constant variable int.
1 is a constant pointer to a non-constant variable int, 2 is a non-constant pointer to a constant variable int.
There is no right answer.

Explanation

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pointers const-cast static-pointer const-qualifier int constant

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