const int led1 = 32;
const int led2 = 33;
const int led3 = 13;
const int led4 = 22;
const int led5 = 21;
const int led6 = 5;
const int led7 = 23;
const int led8 = 19;
const int led9 = 18;
const int led10 = 27;

const int btn1 = 2;  
const int btn2 = 4;  

int contadorEncender = 0;  
int contadorApagar = 6;    
bool btn1_presionado = false;
bool btn2_presionado = false;

void setup() {
  pinMode(led1, OUTPUT);
  pinMode(led2, OUTPUT);
  pinMode(led3, OUTPUT);
  pinMode(led4, OUTPUT);
  pinMode(led5, OUTPUT);
  pinMode(led6, OUTPUT);
  pinMode(led7, OUTPUT);
  pinMode(led8, OUTPUT);
  pinMode(led9, OUTPUT);
  pinMode(led10, OUTPUT);

  pinMode(btn1, INPUT);
  pinMode(btn2, INPUT);
}

void loop() {
  if (digitalRead(btn1) == HIGH && !btn1_presionado) {
    btn1_presionado = true;
    contadorEncender++;  
    if (contadorEncender <= 10) {  
      encenderLED(contadorEncender);  
      contadorApagar = contadorEncender; 
    }
    delay(200);  
  } 
  else if (digitalRead(btn1) == LOW) {
    btn1_presionado = false;
  }

  if (digitalRead(btn2) == HIGH && !btn2_presionado) {
    btn2_presionado = true;
    if (contadorApagar > 0) {  
      apagarLED(contadorApagar);  
      contadorApagar--;
      contadorEncender = contadorApagar;  
    }
    delay(200);  
  } 
  else if (digitalRead(btn2) == LOW) {
    btn2_presionado = false;
  }
}

void encenderLED(int numLED) {
  switch (numLED) {
    case 1:
      digitalWrite(led1, HIGH);
      break;
    case 2:
      digitalWrite(led2, HIGH);
      break;
    case 3:
      digitalWrite(led3, HIGH);
      break;
    case 4:
      digitalWrite(led4, HIGH);
      break;
    case 5:
      digitalWrite(led5, HIGH);
      break;
    case 6:
      digitalWrite(led6, HIGH);
      break;
    case 7:
      digitalWrite(led7, HIGH);
      break;
    case 8:
      digitalWrite(led8, HIGH);
      break;
    case 9:
      digitalWrite(led9, HIGH);
      break;
    case 10:
      digitalWrite(led10, HIGH);
      break;
  }
}

void apagarLED(int numLED) {
  switch (numLED) {
    case 1:
      digitalWrite(led1, LOW);
      break;
    case 2:
      digitalWrite(led2, LOW);
      break;
    case 3:
      digitalWrite(led3, LOW);
      break;
    case 4:
      digitalWrite(led4, LOW);
      break;
    case 5:
      digitalWrite(led5, LOW);
      break;
    case 6:
      digitalWrite(led6, LOW);
      break;
    case 7:
      digitalWrite(led7, LOW);
      break;
    case 8:
      digitalWrite(led8, LOW);
      break;
    case 9:
      digitalWrite(led9, LOW);
      break;
    case 10:
      digitalWrite(led10, LOW);
      break;
  }
}