void create_user(){
  FILE *fp;
  char *rpath, *fpath, *userinfo;
  char name[50], contact[9], user[20], password[20];
  printf("Nome: ");
  scanf("%s",name);
  printf("Contacto: ");
  scanf("%s",contact);
  printf("Username: ");
  scanf("%s",user);
  printf("Password: ");
  scanf("%s",password);

  rpath = "../../.users";
  fpath = strcat(path, user);

  fp = fopen(fpath, "w");

  userinfo = strcat(password, ";;")
  userinfo = strcat(userinfo, name);
  userinfo = strcat(userinfo, ";;");
  userinfo = strcat(userinfo, contact);
  userinfo = strcat(userinfo, "\n");

  fprintf(fp, "%s", userinfo);

  fclose(fp);
}