How can you extend the program to return both the largest and the smallest numbers in a list?

Answers:

• To extend a program to return both the largest and the smallest numbers in a list, you can use built-in functions in Python such as max() and min() to achieve this. Below is a simple example of how you can implement such a program:

  def find_largest_and_smallest(numbers):
      if not numbers:  # Check if the list is empty
          return None, None
  
      largest = max(numbers)  # Find the largest number
      smallest = min(numbers)  # Find the smallest number
  
      return largest, smallest
  
  # Example usage:
  num_list = [3, 5, 1, 9, 2, -4, 7]
  largest, smallest = find_largest_and_smallest(num_list)
  print("Largest number:", largest)
  print("Smallest number:", smallest)
  

  Explanation:

  1. Function Definition: We defined a function find_largest_and_smallest that takes a list of numbers as input.
  2. Empty List Check: We check if the list is empty to avoid errors when using max() and min(). If it is empty, we return (None, None).
  3. Finding Largest and Smallest: We use the max() function to find the largest number and the min() function to find the smallest number in the list.
  4. Return Values: The function returns both the largest and smallest numbers.
  5. Example Usage: We created an example list, called the function, and printed the results.

  This code will work correctly for any list of numbers you provide to it.