// Владимир Бортюк, 1 задание 

int pin_leds[20] = {12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 13, 14, 15, 16, 17, 18, 19, 0, 1};

void setup() {
  for(int i = 0; i < 21; i++){
    pinMode(pin_leds[i], OUTPUT);
  }

  pinMode(A7, INPUT);
}

void loop() {
  for(int i = 0; i < 21; i++){
    digitalWrite(pin_leds[i], HIGH);
    delay(map(analogRead(A7), 0, 1023, 100, 1000));
    digitalWrite(pin_leds[i], LOW);
    delay(50);
  }
}