int pulsante1=19;
int pulsante2=18;
int pulsante3=5;
int led1=17;
int led2=16;
int led3=4;

void setup() {
  pinMode(led1, OUTPUT);
  pinMode(led2, OUTPUT);
  pinMode(led3, OUTPUT);
  pinMode(pulsante1, INPUT);
  pinMode(pulsante2, INPUT);
  pinMode(pulsante3, INPUT_PULLUP);
}
void trepunti(int porta){
  digitalWrite(porta, HIGH);
  delay(200);
  digitalWrite(porta, LOW);
  delay(200);
  digitalWrite(porta, HIGH);
  delay(200);
  digitalWrite(porta, LOW);
  delay(200);
  digitalWrite(porta, HIGH);
  delay(200);
  digitalWrite(porta, LOW);
  delay(200);
}
void trelinee(int porta){
  digitalWrite(porta, HIGH);
  delay(500);
  digitalWrite(porta, LOW);
  delay(200);
  digitalWrite(porta, HIGH);
  delay(500);
  digitalWrite(porta, LOW);
  delay(200);
  digitalWrite(porta, HIGH);
  delay(500);
  digitalWrite(porta, LOW);
  delay(200);
}
void loop() {
  //accensione
  if(digitalRead(pulsante1)==HIGH){
    digitalWrite(led1,HIGH);
    digitalWrite(led2,HIGH);
    digitalWrite(led3,LOW);
  }else if (digitalRead(pulsante2)==LOW){
    digitalWrite(led1,LOW);
    digitalWrite(led3,LOW);
    digitalWrite(led2,HIGH);
    delay(500);
    digitalWrite(led2,LOW);
    delay(500);
  }else if(digitalRead(pulsante3)==LOW){
    digitalWrite(led1, LOW);
    digitalWrite(led2, HIGH);
    trepunti(led3);
    trelinee(led3);
    trepunti(led3);
    delay(1000);
  }else{
    digitalWrite(led1, LOW);
    digitalWrite(led2, HIGH);
    digitalWrite(led3, LOW);
  }
  delay(10);
}