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Interview Strategy · interview question

Which option is the safer default when shipping code around thinking aloud through code?

Multiple choiceHardchapter-20-curatedpremiuminterview-strategythinking-aloud-through-code
python
def running_total(lines: list[int]) -> int:
    total = 0
    for line in lines:
        total += line
    return total
Choose one answer
Answer and explanation

Correct answer

C. Choose the simpler shape that keeps the rule obvious, validated, and easy to observe in logs or tests.

Why

The safest default is usually the one that lowers ambiguity and makes errors easier to diagnose.

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