Enqueue Operation in DSA Python - Build from Scratch

Enqueue Operation in a Queue

📖 Scenario: Imagine you are managing a line of customers waiting to buy tickets. Each new customer joins the end of the line. This line is called a queue.

🎯 Goal: You will create a queue using a list, add new customers to the end of the queue using the enqueue operation, and then display the queue.

📋 What You'll Learn

Create a list called queue with initial customers.

Create a variable called new_customer with the name of the customer to add.

Add the new_customer to the end of the queue using the enqueue operation.

Print the final state of the queue.

💡 Why This Matters

🌍 Real World

Queues are used in real life to manage lines, like customers waiting for service or tasks waiting to be processed.

💼 Career

Understanding queues and enqueue operations is important for jobs in software development, especially when working with data processing, task scheduling, and system design.

1

Create the initial queue

Create a list called queue with these exact customers in order: 'Alice', 'Bob', 'Charlie'

DSA Python

# Create the initial queue list with 'Alice', 'Bob', and 'Charlie'
# Your code here

Hint

Use square brackets to create a list and separate names with commas.

2

Add a new customer name

Create a variable called new_customer and set it to the string 'David'

DSA Python

queue = ['Alice', 'Bob', 'Charlie']
# Create a variable new_customer with the value 'David'
# Your code here

Hint

Use an equals sign to assign the string 'David' to new_customer.

3

Enqueue the new customer

Add the new_customer to the end of the queue list using the append() method

DSA Python

queue = ['Alice', 'Bob', 'Charlie']
new_customer = 'David'
# Add new_customer to the end of queue using append()
# Your code here

Hint

Use queue.append(new_customer) to add the new customer at the end.

4

Print the final queue

Print the queue list to show the final order of customers

DSA Python

queue = ['Alice', 'Bob', 'Charlie']
new_customer = 'David'
queue.append(new_customer)
# Print the queue list
# Your code here

Hint

Use print(queue) to display the queue.