Parking Fee Refuses Negative Hours

Write a function parkingFee(int hours) that returns the cost of parking as a double: 2.5 per hour. A negative number of hours is impossible, so when hours is below 0 the function must throw a std::runtime_error with the message Hours cannot be negative instead of returning anything. A thrown exception leaves the function at once.

The tests call parkingFee with several hour counts, each inside its own try/catch, printing Fee: followed by the amount, or Error: followed by the exception message, one line per call.

Do NOT write a main function.

Expected Output:

Fee: 7.5↵
Fee: 0↵
Fee: 2.5↵

= newline. The output ends with a newline — print one after the last line.

Hints4 available

Topics:

Exceptions

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