Cost optimization in Prompt Engineering / GenAI - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to calculate the total cost by multiplying unit cost and quantity.

Prompt Engineering / GenAI

total_cost = unit_cost [1] quantity

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

A*

B/

C+

D-

Attempts:

3 left

💡 Hint

Common Mistakes

Using '+' instead of '*' will add costs instead of multiplying.

Using '/' or '-' will give incorrect total cost.

Multiplying unit cost by quantity gives the total cost.

2fill in blank

medium

Complete the code to calculate the average cost from a list of costs.

Prompt Engineering / GenAI

average_cost = sum(costs) [1] len(costs)

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

A/

B+

C*

D-

Attempts:

3 left

💡 Hint

Common Mistakes

Using '+' or '*' will not compute average correctly.

Using '-' will give wrong result.

Average is total sum divided by number of items.

3fill in blank

hard

Fix the error in the code to select the minimum cost from a list.

Prompt Engineering / GenAI

min_cost = [1](cost_list)

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

Asum

Bmax

Cmin

Dlen

Attempts:

3 left

💡 Hint

Common Mistakes

Using max() returns the highest cost, not the lowest.

Using sum() or len() are unrelated.

The min() function returns the smallest value in a list.

4fill in blank

hard

Fill both blanks to create a dictionary of item costs only if cost is less than 100.

Prompt Engineering / GenAI

affordable_items = {item: cost for item, cost in items.items() if cost [1] [2]

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

A<

B>

C100

D50

Attempts:

3 left

💡 Hint

Common Mistakes

Using '>' will select expensive items, not affordable ones.

Using 50 instead of 100 changes the threshold.

The dictionary comprehension filters items with cost less than 100.

5fill in blank

hard

Fill all three blanks to create a dictionary of item names in uppercase with costs greater than 20.

Prompt Engineering / GenAI

filtered = { [1]: [2] for [3], [2] in data.items() if [2] > 20 }

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

Aitem.upper()

Bcost

Citem

Dprice

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'price' instead of 'cost' causes undefined variable error.

Not using uppercase for keys misses the requirement.

The dictionary comprehension uses uppercase item names as keys and costs as values, filtering costs above 20.