Performance · interview question

Another engineer will maintain this code later. What choice helps the most around data structure choice?

Multiple choiceMediumchapter-16-curatedpremiumperformancedata-structure-choice

Solve the symptom with comments only and avoid changing the code shape around data structure choice.Keep data structure choice 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.Make the rule obvious in names, flow, and boundaries so the next reader does not have to reverse-engineer your intent.

Answer and explanation

Correct answer

D. Make the rule obvious in names, flow, and boundaries so the next reader does not have to reverse-engineer your intent.

Why

Maintainability comes from explicit intent. This is interview-friendly because it connects algorithmic judgment to everyday Python code.

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Another engineer will maintain this code later. What choice helps the most around data structure choice?

Correct answer

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