Array of Ptrs

#include<stdio.h>
#include<stdlib.h>
typedef struct array {
  int *key;
}array;
int main() {
  int j=10,i=2;
  array *a=(array *)malloc(3*sizeof(array));
  (a+i)->key=&j;
  printf("%d\n",*((a+i)->key));
  free(a);
}