struct pokemon {
  int HP;
  double attack;
};

int battle_two_pokemon(struct pokemon pokemon_a, struct pokemon pokemon_b) {
  if ((pokemon_a.HP - pokemon_b.attack) > (pokemon_b.HP - pokemon_a.attack)) {
    return 0;
  } else if ((pokemon_b.HP - pokemon_a.attack) >
             (pokemon_a.HP - pokemon_b.attack)) {
    return 1;
  } else {
    return -1;
  }
}

int main(void) {
  struct pokemon my_pokemon;
  my_pokemon.HP = 50;
  my_pokemon.attack = 5.0;

  struct pokemon second_pokemon;
  second_pokemon.HP = 45;
  second_pokemon.attack = 2.5;

  battle_two_pokemon(my_pokemon, second_pokemon);
}