define and typedef

#include <stdio.h>

#define dPs int*
typedef int* tPs;

int main()
{
    int i=9;
    const tPs p1=&i;
    const dPs p2;

//    p1 = &i;
    p2 = &i;

    printf("%d %d/n",*p1,*p2);

    return 0;
}