const int buttonPin = 2;
const int ledPin = 3;
const int buzzerPin = 4;

void setup() {
  pinMode(buttonPin, INPUT);
  pinMode(ledPin, OUTPUT);
  pinMode(buzzerPin, OUTPUT);
}

void loop() {
  int buttonState = digitalRead(buttonPin);
  if (buttonState == HIGH) {
    digitalWrite(ledPin, HIGH);
    tone(buzzerPin, 1000, 500);
  } else {
    digitalWrite(ledPin, LOW);
    noTone(buzzerPin);
  }
}