import java.util.ArrayList;
import java.util.List;
public class Race {
private List cars = new ArrayList<>();
public Race() {
}
public void addCar(Car car) {
cars.add(car);
}
public Car getWinner() {
if (cars.isEmpty()) return null;
Car winner = cars.get(0);
for (Car car : cars) {
if (car.getDistance() > winner.getDistance())
winner = car;
}
return winner;
}
}