#include <stdio.h>

struct Coordenada{
  double x;
  double y;
};
typedef struct Coordenada   Coordenada;


int main(){
  Coordenada c1, c2, *c3;

  c3 = &c1;

  c1.x = -1;
  c1.y = -1.5;

  c2.x = 2.5;
  c2.y = -5;

  *c3 = c2;

  printf("Coordenadas de c1: (%lf,%lf)\n",c1.x, c1.y);
}