DSA · Theory

Structure

Theory

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Don’t start Structure with jargon. Start with Dev walking through Structure. That is the whole point.

Structure order — meaning → one Structure step Dev can write from memory → one limit. Dumping ten features helps nobody.

Structure exists so Dev can keep Dev walking through Structure correct in a first job task.

Structure shows up in a first job task. Name Dev walking through Structure, not “a real-world scenario”.

If Dev walking through Structure breaks under Structure, check skipping the failure case for Structure first.

Structure is not a lonely heading. Dev ties it to Dev walking through Structure.

Close Structure with: “If I skip it, Dev walking through Structure goes wrong like this: skipping the failure case for Structure.”

Exam tip

For Structure: definition + a first job task + one failure.

# Structure
data = [4, 1, 3]
print("start", data)
if data[0] > data[1]:
    data[0], data[1] = data[1], data[0]
print("after one step", data)

Structure: dry-run [4, 1, 3]. Say the list after one step.

DefStructure — Dev uses it for Dev walking through Structure in a first job task.
RuleStructure → one Structure step Dev can write from memory.
RememberStructure + time vs memory (a first job task).
UseStructure in a first job task (Dev walking through Structure).
TrapStructure — skipping the failure case for Structure.
ExStructure → Dev walking through Structure.