int redLed = 3;
int greenLed = 4;
int redButton = 8;
int greenButton = 10;
int greenState;
int redState;
int buzzer = 6;

void setup()
{
  pinMode(greenLed,  OUTPUT);
  pinMode(redLed,  OUTPUT);
  pinMode(buzzer, OUTPUT); 
  pinMode(greenButton, INPUT);
  pinMode(redButton, INPUT);
}

void loop()
{
  greenState = digitalRead(greenButton);
  redState = digitalRead(redButton);
  
  if (redState == HIGH)
  {
    digitalWrite(redLed, HIGH);
    tone(buzzer, 500);
  } else if (greenState == LOW) {
    digitalWrite(greenLed, LOW);
    noTone(buzzer);
  }
  
  if (greenState == HIGH)
  {
    digitalWrite(greenLed, HIGH);
    tone(buzzer, 500);
  } else if (redState == LOW){
    digitalWrite(redLed, LOW);
    noTone(buzzer);
  }
}

//Kelompok 5_IK-2D