#define numLEDs 6
#define numSchalter 8
const int LED[numLEDs] = {A0, A1, A2, A3, A4, A5};
const int Schalter[numSchalter] = {0, 1, 2, 3, 4, 5, 6, 7};

void setup() 
{
  for (int i = 0; i < numLEDs; i++)  
    pinMode(LED[i], OUTPUT);  
  
  for (int j = 0; j < numSchalter; j++)
    pinMode(Schalter[j], INPUT_PULLUP);
}

void loop() 
{
  if(digitalRead(Schalter[0]) == HIGH)
  {
    for (int i = 0; i < numLEDs; i++)  
      digitalWrite(LED[i], HIGH);
  }
  else
  {
    for (int i = 0; i < numLEDs; i++)  
      digitalWrite(LED[i], LOW);
  }

  if(digitalRead(Schalter[1]) == HIGH)
  {
    for (int i = 0; i < 3; i++)  
      digitalWrite(LED[i], HIGH);
  }
  else
  {
    for (int i = 0; i < 3; i++)  
      digitalWrite(LED[i], LOW);
  }

   if(digitalRead(Schalter[2]) == HIGH)
  {
    for (int i = 3; i < numLEDs; i++)  
      digitalWrite(LED[i], HIGH);
  }
  else
  {
    for (int i = 3; i < numLEDs; i++)  
      digitalWrite(LED[i], LOW);
  }
  
  if(digitalRead(Schalter[3]) == HIGH)
  {
    for (int i = 0; i < numLEDs; i++)  
      digitalWrite(LED[i], HIGH);
       delay(500);  // Alle Leds gehen mit 0,5 sekunden verzögerung an
    for (int i = 0; i < numLEDs; i++)  
      digitalWrite(LED[i], LOW);
      delay(500);   // Alle Leds gehen mit 0,5 sekunden verzögerung aus
  }
  else
  {
    for (int i = 0; i < numLEDs; i++)  
      digitalWrite(LED[i], LOW);
  }

if(digitalRead(Schalter[4]) == HIGH)
  {
    
    for (int i = 0; i < numLEDs; i++){  
      digitalWrite(LED[i], HIGH);  // alle schalter gehen hintereinander ein und aus
       delay(300); // in 0,3 sekunden
       digitalWrite(LED[i], LOW);
    }
  }
  else
  {
    for (int i = 0; i < numLEDs; i++)  
      digitalWrite(LED[i], LOW);
  }

}