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DSA · Theory

UGLY NUMBERS IN DSA

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Theory

620/810

UGLY NUMBERS IN DSA

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

Smallest example: the smallest UGLY NUMBERS in dsa example you can type. Type it, run it, and say what you see. If you can do that from memory, you know UGLY NUMBERS (in dsa).

From the example next to this theory — UGLY NUMBERS IN DSA: dry-run [4, 1, 3].

Trap — only saying “UGLY NUMBERS in dsa” with no example. Fix that before you talk about advanced DSA.

Viva: what is UGLY NUMBERS (in dsa)? Then show the smallest UGLY NUMBERS in dsa example you can type. Then name the trap.

Exam tip

What is UGLY NUMBERS (in dsa)? Show this: the smallest UGLY NUMBERS in dsa example you can type. Trap: only saying “UGLY NUMBERS in dsa” with no example.

Example

# UGLY NUMBERS IN 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)

UGLY NUMBERS IN DSA: dry-run [4, 1, 3]. Say the list after one step.

Short notes

  • DefUGLY NUMBERS (in dsa) — a short UGLY NUMBERS in dsa example in a short dry-run on paper.
  • Rulethe smallest UGLY NUMBERS in dsa example you can type
  • Traponly saying “UGLY NUMBERS in dsa” with no example
  • Usea short dry-run on paper

Questions

1

What is UGLY NUMBERS (in dsa)?

2

Give one small example of UGLY NUMBERS (in dsa).

3

What mistake do beginners make with UGLY NUMBERS (in dsa)?

4

Where do you use UGLY NUMBERS (in dsa)?

620 / 810

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