const int buttonPins[] = {2, 3, 4}; 
const int ledPins[] = {13, 11, 12};  

bool ledStates[] = {false, false, false};  
int buttonStates[] = {0, 0, 0};

const int numButtons = 3; 

void setup() {
  Serial.begin(115200);
  
  for (int i = 0; i < numButtons; i++) {
    pinMode(buttonPins[i], INPUT_PULLUP);
    pinMode(ledPins[i], OUTPUT);
  }
}

void loop() {
  for (int i = 0; i < numButtons; i++) {
    buttonStates[i] = digitalRead(buttonPins[i]);
    
    
    if (buttonStates[i] == LOW && !ledStates[i]) {
      ledStates[i] = true;
      digitalWrite(ledPins[i], HIGH);  
      delay(250);  
    }
    
    else if (buttonStates[i] == LOW && ledStates[i]) {
      ledStates[i] = false; 
      digitalWrite(ledPins[i], LOW);  
      delay(250);  
    }
  }
}