break/continue in a Nested Loop

Let's apply the concepts of break and continue to analyze travel costs practically. We'll combine a while loop and a for loop to process expenses across multiple trips.

Imagine you have multiple trips, and each trip has a list of expenses. If any expense exceeds a specific budget threshold, we will stop processing that trip immediately.


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# List of trips with their respective expenses
travel_costs = [
    [100, 150, 300, 50],   # Trip 1
    [200, 500, 100, 80],   # Trip 2
    [120, 180, 400, 150]   # Trip 3
]

# Budget threshold
budget = 200

# Outer while loop to iterate through trips
i = 0
while i < len(travel_costs):
    print(f"Processing expenses for Trip {i + 1}:")
    
    # Inner for loop to iterate through expenses
    for cost in travel_costs[i]:
        if cost > budget:  # If expense exceeds the budget, stop processing the current trip
            print(f"Expense {cost} exceeds the budget. Stopping this trip.")
            break
        print(f"Expense: ${cost}")
    
    i += 1  # Move to the next trip
    print("")  # Add a new line for readability

Outer loop: iterates through the list of trips using the index i;
Inner loop: processes each expense in the current trip;
break in the inner loop: if an expense exceeds the budget, the break statement stops processing expenses for the current trip.

Task

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You are analyzing travel expenses from multiple trips, where each trip contains a list of expenses for transportation, accommodation, food, and activities. Your goal is to identify the first significant expense in each trip while applying specific filtering rules.

Iterate through each trip's expenses one by one.
Skip expenses below $100, as they are not considered significant.
Stop at the first expense greater than $200 using break.
Store this first significant expense from each trip in the significant_expenses list.

Solution

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Section 3. Chapter 4

break/continue in a Nested Loop

Let's apply the concepts of break and continue to analyze travel costs practically. We'll combine a while loop and a for loop to process expenses across multiple trips.

Imagine you have multiple trips, and each trip has a list of expenses. If any expense exceeds a specific budget threshold, we will stop processing that trip immediately.


              123456789101112131415161718192021222324
            
# List of trips with their respective expenses
travel_costs = [
    [100, 150, 300, 50],   # Trip 1
    [200, 500, 100, 80],   # Trip 2
    [120, 180, 400, 150]   # Trip 3
]

# Budget threshold
budget = 200

# Outer while loop to iterate through trips
i = 0
while i < len(travel_costs):
    print(f"Processing expenses for Trip {i + 1}:")
    
    # Inner for loop to iterate through expenses
    for cost in travel_costs[i]:
        if cost > budget:  # If expense exceeds the budget, stop processing the current trip
            print(f"Expense {cost} exceeds the budget. Stopping this trip.")
            break
        print(f"Expense: ${cost}")
    
    i += 1  # Move to the next trip
    print("")  # Add a new line for readability

Outer loop: iterates through the list of trips using the index i;
Inner loop: processes each expense in the current trip;
break in the inner loop: if an expense exceeds the budget, the break statement stops processing expenses for the current trip.

Task

Swipe to start coding

Iterate through each trip's expenses one by one.
Skip expenses below $100, as they are not considered significant.
Stop at the first expense greater than $200 using break.
Store this first significant expense from each trip in the significant_expenses list.

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!

Section 3. Chapter 4

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