#include <stdio.h>

struct punkt{
  int x;
  int y;
};

int main(void){
  struct punkt *p[2];
  p[0]=(struct punkt*)malloc(sizeof(struct punkt));
  p[0]->x=17;
  p[0]->y=23;
  p[1]=(struct punkt*)malloc(sizeof(struct punkt));
  p[1]->x=21;
  p[1]->y=45;
  printf("x=%d\n", p[0]->x);
  return 0;
}