Find Max and Min Numbers in a List

This Python code defines a function to find the maximum and minimum numbers in a list.

  1. Function: find_max_min(numbers) takes a list and returns the max and min values.
  2. Empty List Check: Returns (None, None) if the list is empty.
  3. Initialization: Sets max_num and min_num to the first element.
  4. Iteration: Loops through the list to update max_num and min_num.
  5. Example Usage:

Example Code:

def find_max_min(numbers):
    # Check for empty list
    if not numbers:
        return (None, None)
    
    max_num = min_num = numbers[0]  # Initialization
    
    # Iterate through the list
    for num in numbers:
        if num > max_num:
            max_num = num
        if num < min_num:
            min_num = num
            
    # Return the max and min values
    return max_num, min_num

# Example usage
numbers = [3, 1, 4, 1, 5, 9]
max_num, min_num = find_max_min(numbers)
print(f"\033[92mMax: {max_num}, Min: {min_num}\033[0m")  # Bright green for output

def find_max_min(numbers):
    if not numbers:
        return None, None  # <span style="color: #D9B68C;">Return None if the list is empty</span>
    
    max_num = numbers[0]  # <span style="color: #D9B68C;">Start with the first number as the max</span>
    min_num = numbers[0]  # <span style="color: #D9B68C;">Start with the first number as the min</span>
    
    for num in numbers:
        if num > max_num:
            max_num = num  # <span style="color: #D9B68C;">Update max if a larger number is found</span>
        if num < min_num:
            min_num = num  # <span style="color: #D9B68C;">Update min if a smaller number is found</span>
            
    return max_num, min_num  # <span style="color: #D9B68C;">Return the found max and min</span>

# Example usage
numbers = [3, 1, 4, 1, 5, 9, 2, 6, 5, 3, 5]
max_num, min_num = find_max_min(numbers)

print(f"Maximum number: {max_num}")
print(f"Minimum number: {min_num}")



Maximum number: 9
Minimum number: 1

Iteration Through Loops in Python

This code demonstrates how to iterate through a list using both a for loop and a while loop.

  1. For Loop: Iterates through each element in a list.
  2. While Loop: Continues until a condition is no longer met.

Example Code:

# List of numbers
numbers = [1, 2, 3, 4, 5]

# Using a for loop
print("Using a for loop:")
for num in numbers:
    print(num)

# Using a while loop
print("\nUsing a while loop:")
index = 0
while index < len(numbers):
    print(numbers[index])
    index += 1

# List of numbers
numbers = [1, 2, 3, 4, 5]

# Using a for loop
print("Using a for loop:")
for num in numbers:
    print(num)

# Using a while loop
print("\nUsing a while loop:")
index = 0
while index < len(numbers):
    print(numbers[index])
    index += 1


Using a for loop:
1
2
3
4
5

Using a while loop:
1
2
3
4
5

Another Example

# List of fruits
fruits = ["apple", "banana", "cherry", "date", "elderberry"]

# Using a for loop
print("Using a for loop:")
for fruit in fruits:
    print(fruit)

# Using a while loop
print("\nUsing a while loop:")
index = 0
while index < len(fruits):
    print(fruits[index])
    index += 1

    


Using a for loop:
apple
banana
cherry
date
elderberry

Using a while loop:
apple
banana
cherry
date
elderberry

And here is a cool Rock, Paper, Scissors Game hat uses iterations through the lists by using loops to find the right number.

import random
import ipywidgets as widgets
from IPython.display import display, clear_output, HTML

# Game choices
choices = ["rock", "paper", "scissors"]

# Function to determine the winner
def determine_winner(player, computer):
    if player == computer:
        return "It's a tie!"
    elif (player == "rock" and computer == "scissors") or \
         (player == "paper" and computer == "rock") or \
         (player == "scissors" and computer == "paper"):
        return "You win!"
    else:
        return "Computer wins!"

# Function to handle button clicks
def on_button_click(choice):
    computer_choice = random.choice(choices)
    result = determine_winner(choice, computer_choice)
    
    # Clear previous output
    clear_output(wait=True)
    
    # Display choices and result with earthy theme
    output_html = f"""
    <div style="background-color: #4E3B31; color: #D9B68C; padding: 10px; border-radius: 5px; font-size: 14px;">
        <p>You chose: <strong style="color: #4A7C2E;">{choice}</strong></p>
        <p>Computer chose: <strong style="color: #4A7C2E;">{computer_choice}</strong></p>
        <p>{result}</p>
    </div>
    """
    
    display(HTML(output_html))

# Create buttons for each choice
buttons = {choice: widgets.Button(description=choice.capitalize()) for choice in choices}

# Set up the button click event
for choice, button in buttons.items():
    button.on_click(lambda b, choice=choice: on_button_click(choice))

# Display buttons
display(*buttons.values())

You chose: rock

Computer chose: paper

Computer wins!

Homework

Create a list of your favorite hobbies and use loops to run through each hobby. Here is a code starter to get your thoughts going.

hobbies = ["Reading", "Hiking", "Cooking", "Gaming", "Photography"]