void main() {
  print('Hello, World!');
}


int factorial(int n) {
  if (n == 0 || n == 1) {
    return 1;
  } else {
    return n * factorial(n - 1);
  }
}

void main() {
  int number = 5;
  int result = factorial(number);
  print('The factorial of $number is $result.');
}

int findMax(List<int> numbers) {
  int max = numbers[0];
  for (int i = 1; i < numbers.length; i++) {
    if (numbers[i] > max) {
      max = numbers[i];
    }
  }
  return max;
}

void main() {
  List<int> numbers = [12, 56, 3, 78, 42, 9];
  int maxNumber = findMax(numbers);
  print('The maximum number in the list is $maxNumber.');
}