Calculate Parking Fee Based on Duration and Extra Hours

Program Overview

This Python program calculates the parking fee based on the total duration of stay.
The rules are as follows:
- For up to 3 hours, the minimum fee is $5
- For each additional hour or part of an hour beyond 3 hours, an extra $0.50 is charged
- A maximum cap may apply (not specified in the prompt)

Python Code:

import math

def calculate_parking_fee(hours: float) -> float:
    base_fee = 5.0
    extra_rate = 0.5

    if hours <= 3:
        return base_fee
    else:
        extra_hours = math.ceil(hours - 3)
        return base_fee + extra_hours * extra_rate

# Run the program
duration = float(input("Enter parking duration in hours: "))
fee = calculate_parking_fee(duration)
print(f"Total parking fee: ${fee:.2f}")

Sample Output (input: 4.2 hours):

Total parking fee: $6.00

Step-by-Step Explanation:

- The user enters the total parking duration in hours
- If the duration is 3 hours or less, the fee is $5
- If it exceeds 3 hours, each extra hour or fraction is rounded up and charged at $0.50
- The total fee is calculated and displayed with two decimal places