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Challenge: Tuple Operations

Your grocery store's system is designed to track the inventory of items on different shelves using tuples, as tuples provide a way to ensure the data is immutable once set.

However, the store needs to monitor certain items and track their quantities or positions to assist in restocking or rearranging.

You are tasked with analyzing and managing inventory data using tuples to determine certain metrics and take actions based on specific criteria.

Task

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Manage a tuple representing a shelf of fruits by performing operations to count, find, and check stock levels.

Count how many times "apples" appear in the shelf tuple. Store this in apple_count and print: "Number of Apples: <$apple_count>".
Find the index of the first occurrence of "bananas" in the shelf tuple. Store the index in banana_index and print: "First Banana Index: <$banana_index>".
Check if the number of apples is less than 5. If true, print: "Apples need to be restocked." Otherwise, print: "Apples are sufficiently stocked."
Count how many times "grapes" appear in the shelf tuple. If grapes appear only once, print: "Grapes need to be restocked." Otherwise, print: "Grapes are sufficiently stocked."
Check if "oranges" exist in the shelf tuple. If they do, print their index with: "Oranges are at index: <$orange_index>". If they don't exist, print: "Oranges are out of stock."

Output Requirements

Print the number of apples: "Number of Apples: <$apple_count>".
Print the index of the first occurrence of bananas: "First Banana Index: <$banana_index>".
Print a message about the apple stock status: "Apples need to be restocked." or "Apples are sufficiently stocked."
Print a message about the grape stock status: "Grapes need to be restocked." or "Grapes are sufficiently stocked."
Print the index of oranges if they exist: "Oranges are at index: <$orange_index>", or "Oranges are out of stock."

Note

You can use the in and not in operators with both tuples and lists.

Requirements checklist

Check that the value of apple_count is equal to the number of times "apples" appears in the shelf tuple.
Check that the value of banana_index is equal to the index of the first occurrence of "bananas" in the shelf tuple.
If apple_count is less than 5, check that the output includes "Apples need to be restocked." Otherwise, check that it includes "Apples are sufficiently stocked."
Check that the output includes "Grapes need to be restocked." if the count of "grapes" in shelf is 1, otherwise check that it includes "Grapes are sufficiently stocked."
If "oranges" is in shelf, check that the output includes "Oranges are at index: <$orange_index>", where <$orange_index> is the index of "oranges" in shelf. If not, check that it includes "Oranges are out of stock."
Check that the output includes "Number of Apples: <$apple_count>", where <$apple_count> is the value from check 1.
Check that the output includes "First Banana Index: <$banana_index>", where <$banana_index> is the value from check 2.

Solution

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Section 4. Chapter 6

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Challenge: Tuple Operations

Your grocery store's system is designed to track the inventory of items on different shelves using tuples, as tuples provide a way to ensure the data is immutable once set.

However, the store needs to monitor certain items and track their quantities or positions to assist in restocking or rearranging.

You are tasked with analyzing and managing inventory data using tuples to determine certain metrics and take actions based on specific criteria.

Task

Swipe to start coding

Manage a tuple representing a shelf of fruits by performing operations to count, find, and check stock levels.

Count how many times "apples" appear in the shelf tuple. Store this in apple_count and print: "Number of Apples: <$apple_count>".
Find the index of the first occurrence of "bananas" in the shelf tuple. Store the index in banana_index and print: "First Banana Index: <$banana_index>".
Check if the number of apples is less than 5. If true, print: "Apples need to be restocked." Otherwise, print: "Apples are sufficiently stocked."
Count how many times "grapes" appear in the shelf tuple. If grapes appear only once, print: "Grapes need to be restocked." Otherwise, print: "Grapes are sufficiently stocked."
Check if "oranges" exist in the shelf tuple. If they do, print their index with: "Oranges are at index: <$orange_index>". If they don't exist, print: "Oranges are out of stock."

Output Requirements

Print the number of apples: "Number of Apples: <$apple_count>".
Print the index of the first occurrence of bananas: "First Banana Index: <$banana_index>".
Print a message about the apple stock status: "Apples need to be restocked." or "Apples are sufficiently stocked."
Print a message about the grape stock status: "Grapes need to be restocked." or "Grapes are sufficiently stocked."
Print the index of oranges if they exist: "Oranges are at index: <$orange_index>", or "Oranges are out of stock."

Note

You can use the in and not in operators with both tuples and lists.

Requirements checklist

Check that the value of apple_count is equal to the number of times "apples" appears in the shelf tuple.
Check that the value of banana_index is equal to the index of the first occurrence of "bananas" in the shelf tuple.
If apple_count is less than 5, check that the output includes "Apples need to be restocked." Otherwise, check that it includes "Apples are sufficiently stocked."
Check that the output includes "Grapes need to be restocked." if the count of "grapes" in shelf is 1, otherwise check that it includes "Grapes are sufficiently stocked."
If "oranges" is in shelf, check that the output includes "Oranges are at index: <$orange_index>", where <$orange_index> is the index of "oranges" in shelf. If not, check that it includes "Oranges are out of stock."
Check that the output includes "Number of Apples: <$apple_count>", where <$apple_count> is the value from check 1.
Check that the output includes "First Banana Index: <$banana_index>", where <$banana_index> is the value from check 2.

Solution

Switch to desktop for real-world practiceContinue from where you are using one of the options below

Everything was clear?

Thanks for your feedback!

Swipe to show menu

Challenge: Tuple Operations

Output Requirements

Requirements checklist

Solution

Awesome!

Awesome!

Challenge: Tuple Operations

Output Requirements

Requirements checklist

Solution

Awesome!