Control Flow · interview question

Which option is the safer default when shipping code around for loops?

Multiple choiceHardchapter-2-curatedpremiumcontrol-flowfor-loops

python

line_totals = [19.99, 8.50, 42.00]
grand_total = 0.0
for line_total in line_totals:
    grand_total += line_total
print(grand_total)

Choose the simpler shape that keeps the rule obvious, validated, and easy to observe in logs or tests.Keep for loops implicit so the script stays short and hope the next engineer infers the rule.Delay clarity until production traffic reveals the edge case and then patch it under pressure.Solve the symptom with comments only and avoid changing the code shape around for loops.

Answer and explanation

Correct answer

A. 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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Which option is the safer default when shipping code around for loops?

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