Control Flow · interview question
A bug appears around branching policies. What is the strongest first debugging move?
Multiple choiceEasychapter-2-curatedpremiumcontrol-flowbranching-policies
if is_vip and subtotal >= 100:
discount_rate = 0.15
elif subtotal >= 75:
discount_rate = 0.05
else:
discount_rate = 0.0Answer and explanation
Correct answer
A. Trace one concrete example, inspect the state transitions, and compare them to the intended rule before rewriting anything.
Why
That approach is reliable because it creates evidence. Unclear branch order makes a rule look random even if the syntax is technically valid.
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