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DSA · Theory

Structure

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Theory

132/810

Structure

Structure is a DSA topic. In plain words you use it for a short Structure example in a short dry-run on paper. Don’t start with a slogan — start with that picture.

Smallest example: the smallest Structure example you can type. Type it, run it, and say what you see. If you can do that from memory, you know Structure.

From the example next to this theory — Structure: dry-run [4, 1, 3].

Trap — only saying “Structure” with no example. Fix that before you talk about advanced DSA.

Viva — what is Structure? Then show the smallest Structure example you can type. Then name the trap.

Exam tip

What is Structure? Show this: the smallest Structure example you can type. Trap: only saying “Structure” with no example.

Example

# 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.

Short notes

  • DefStructure — a short Structure example in a short dry-run on paper.
  • Rulethe smallest Structure example you can type
  • Traponly saying “Structure” with no example
  • Usea short dry-run on paper

Questions

1

What is Structure?

2

Give one small example of Structure.

3

What mistake do beginners make with Structure?

4

Where do you use Structure?

132 / 810

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