Product catalog design in HLD - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to define the main component of a product catalog system.

HLD

class [1]:
    def __init__(self):
        self.products = []

Drag options to blanks, or click blank then click option'

APaymentGateway

BUserProfile

COrderManager

DProductCatalog

Attempts:

3 left

💡 Hint

Common Mistakes

Choosing unrelated class names like UserProfile or PaymentGateway.

The main class managing the product catalog should be named ProductCatalog.

2fill in blank

medium

Complete the code to add a product to the catalog.

HLD

def add_product(self, product):
    self.products.[1](product)

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Aappend

Bclear

Cremove

Dpop

Attempts:

3 left

💡 Hint

Common Mistakes

Using remove or pop which delete items instead of adding.

To add an item to a list in Python, use the append method.

3fill in blank

hard

Fix the error in the method to find a product by ID.

HLD

def find_product(self, product_id):
    for product in self.products:
        if product.id == [1]:
            return product
    return None

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Aproduct_id

Bproduct

Cself

Did

Attempts:

3 left

💡 Hint

Common Mistakes

Comparing product.id with product or self which are incorrect.

The method should compare product.id with the input parameter product_id.

4fill in blank

hard

Fill both blanks to create a dictionary comprehension for product names and prices where price is above 100.

HLD

{product.name: product.[1] for product in products if product.[2] > 100}

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Aprice

Bname

Did

Attempts:

3 left

💡 Hint

Common Mistakes

Using name instead of price for the value or condition.

The dictionary maps product names to their prices, filtering products with price > 100.

5fill in blank

hard

Fill all three blanks to create a filtered dictionary of product IDs and names for products in stock.

HLD

{product.[1]: product.[2] for product in products if product.[3] > 0}

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Aid

Bname

Cstock

Dprice

Attempts:

3 left

💡 Hint

Common Mistakes

Using price instead of stock for filtering or wrong attributes for keys/values.

The dictionary uses product IDs as keys and names as values, filtering products with stock > 0.