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DSA · Theory

What is DSA

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Theory

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What is DSA

Isha only reaches for DSA (what is) when marks stored somehow has to stay correct in a viva board.

DSA (what is) on the board — array vs list vs hash — one line each. Then say what marks stored somehow looks like after.

Skip DSA (what is) and reciting names with no cost shows up in a viva board.

Use DSA (what is) when marks stored somehow must stay clear. If a simpler DSA step works, use that instead.

DSA (what is) miss — reciting names with no cost. Fix it before you talk about advanced DSA.

Place DSA (what is) next to nearby DSA work — array vs list vs hash — one line each is the link.

Close DSA (what is) with — “If I skip it, marks stored somehow goes wrong like this: reciting names with no cost.”

Exam tip

For DSA (what is): definition + a viva board + one failure.

Example

# What is DSA
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)

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

Short notes

  • DefDSA (what is) — Isha uses it for marks stored somehow in a viva board.
  • RuleDSA (what is) → array vs list vs hash — one line each.
  • RememberDSA (what is) + Big-O (a viva board).
  • UseDSA (what is) in a viva board (marks stored somehow).
  • TrapDSA (what is) — reciting names with no cost.
  • ExDSA (what is) → marks stored somehow.

Questions

1

Isha asks: why does DSA (what is) exist? Use marks stored somehow.

2

Where does DSA (what is) show up in a viva board?

3

How do you catch reciting names with no cost?

4

Change one input on marks stored somehow. Predict the new result.

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