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Interview Strategy · interview question

What does a strong engineer do when reasoning through testing explanations code?

Multiple choiceMediumchapter-20-curatedpremiuminterview-strategytesting-explanations
python
def shipping_fee(subtotal: float) -> float:
    return 0 if subtotal >= 100 else 6.5
Choose one answer
Answer and explanation

Correct answer

D. Narrate the data shape, the state changes, and the exact rule order step by step.

Why

Interviewers often use simple code to test whether you can reason through execution without bluffing.

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