Provides an interesting C ++ Function

The following code is from the c programmer's interview book. It is similar to traversing an array. For example, if an array of the int type is a, add 1 to a, which means moving the sizeof (int) position, add 15 to move 15 * sizeof (int) positions, and paste the code.

int _tmain(int argc, _TCHAR* argv[]) {     int *pa = NULL;     int *pb = pa 15;     cout<<pa<<endl;     cout<<pb<<endl;     return 0; }

The final output is 0000003c.

I have read the above Code and hope you can get it.