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DSA · Theory

Sliding Window Maximum (Maximum of all Subarrays of size K)

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Theory

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Sliding Window Maximum (Maximum of all Subarrays of size K)

Sliding Window Maximum (Maximum of all Subarrays of size K) is a DSA topic. In plain words you use it for a short Sliding Window Maximum Maximum of all Subarrays of size K example in a short dry-run on paper. Don’t start with a slogan — start with that picture.

Smallest example: the smallest Sliding Window Maximum Maximum of all Subarrays of size K example you can type. Type it, run it, and say what you see. If you can do that from memory, you know Sliding Window Maximum (Maximum of all Subarrays of size K).

From the example next to this theory — Sliding Window Maximum (Maximum of all Subarrays of size K): dry-run [4, 1, 3].

Trap: only saying “Sliding Window Maximum Maximum of all Subarrays of size K” with no example. Fix that before you talk about advanced DSA.

Viva: what is Sliding Window Maximum (Maximum of all Subarrays of size K)? Then show the smallest Sliding Window Maximum Maximum of all Subarrays of size K example you can type. Then name the trap.

Exam tip

What is Sliding Window Maximum (Maximum of all Subarrays of size K)? Show this: the smallest Sliding Window Maximum Maximum of all Subarrays of size K example you can type. Trap: only saying “Sliding Window Maximum Maximum of all Subarrays of size K” with no example.

Example

# Sliding Window Maximum (Maximum of all Subarrays of size K)
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)

Sliding Window Maximum (Maximum of all Subarrays of size K): dry-run [4, 1, 3]. Say the list after one step.

Short notes

  • DefSliding Window Maximum (Maximum of all Subarrays of size K) — a short Sliding Window Maximum Maximum of all Subarrays of size K example in a short dry-run on paper.
  • Rulethe smallest Sliding Window Maximum Maximum of all Subarrays of size K example you can type
  • Traponly saying “Sliding Window Maximum Maximum of all Subarrays of size K” with no example
  • Usea short dry-run on paper

Questions

1

What is Sliding Window Maximum (Maximum of all Subarrays of size K)?

2

Give one small example of Sliding Window Maximum (Maximum of all Subarrays of size K).

3

What mistake do beginners make with Sliding Window Maximum (Maximum of all Subarrays of size K)?

4

Where do you use Sliding Window Maximum (Maximum of all Subarrays of size K)?

265 / 810

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