import java.util.HashMap;
public class Race {
private HashMap dataCars = new HashMap<>();
String leader;
public String getLeader() {
int maxSpeed = -1;
for (String name: dataCars.keySet()) {
int curr_speed = dataCars.get(name);
if (curr_speed > maxSpeed) {
maxSpeed = curr_speed;
leader = name;
}
}
return leader;
}
public void addCarToData(Car car) {
dataCars.put(car.name, car.speed);
if (leader == null) {
leader = car.name;
}
}
}