import java.util.ArrayList;

import java.util.Comparator;

import java.util.List;

public class Race {

private final List<Car> cars;

public Race() {

this.cars = new ArrayList<>();

}

public List<Car> getCars() {

return cars;

}

public String getRaceResults() {

return cars.stream()

.max(Comparator.comparingInt(c -> c.getSpeed() * 24))

.map(Car::getName)

.orElse(null);

}

//Альтернативное решение (если стримы считаются читерством)

/*

public String getRaceResults() {

Car winner = null;

int maxDistance = -1;

for (Car car : cars) {

int distance = car.getSpeed() * 24;

if (distance > maxDistance) {

maxDistance = distance;

winner = car;

}

}

return winner.getName();

}

*/

}