// Define pins for LEDs and buttons
int ledPins[] = {2, 3, 4, 5, 6};
int buttonPins[] = {7, 8, 9, 10, 11};

// Initialize variables for storing LED states and button states
int ledStates[] = {LOW, LOW, LOW, LOW, LOW};
int buttonStates[] = {LOW, LOW, LOW, LOW, LOW};


// Function to generate random LED index
int randomLED() {
  return random(0, 5);
}

// Function to turn on specified LED
void turnOnLED(int index) {
  digitalWrite(ledPins[index], HIGH);
  ledStates[index] = HIGH;
}

// Function to turn off specified LED
void turnOffLED(int index) {
  digitalWrite(ledPins[index], LOW);
  ledStates[index] = LOW;
}

// Function to check button states and toggle LEDs accordingly
void checkButtons() {
  for (int i = 0; i < 5; i++) {
    // Read button state
    buttonStates[i] = digitalRead(buttonPins[i]);

    // If button is pressed, toggle corresponding LED
    if (buttonStates[i] == HIGH) {
      if (ledStates[i] == LOW) {
        turnOnLED(i);
      } else {
        turnOffLED(i);
      }
    }
  }
}

void setup() {
  // Set random seed
randomSeed(analogRead(0));
  // Set LED pins as outputs
  for (int i = 0; i < 5; i++) {
    pinMode(ledPins[i], OUTPUT);
  }

  // Set button pins as inputs
  for (int i = 0; i < 5; i++) {
    pinMode(buttonPins[i], INPUT);
  }
}

void loop() {
  // Generate random LED index
  int index = randomLED();

  // Turn on random LED
  turnOnLED(index);

  // Check button states and toggle LEDs accordingly
  checkButtons();

  // Delay for 500 milliseconds
  delay(500);

  // Turn off random LED
  turnOffLED(index);

  // Check button states and toggle LEDs accordingly
  checkButtons();

  // Delay for 500 milliseconds
  delay(500);
  }