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Java: In Java, which comparison about Sliding Window on Arrays is accurate?

Difficulty:

Easy

Questions:

1

Time Limit:

2 minutes

Passing Score:

100%

Question

In Java, which comparison about Sliding Window on Arrays is accurate?

  1. There is no practical difference in behavior, performance, or API design when Sliding Window on Arrays is involved.
  2. Sliding windows reuse previous work, while restarting each subarray check from scratch repeats computation unnecessarily.
  3. The oldest option related to Sliding Window on Arrays is always the right production choice regardless of context.
  4. Differences around Sliding Window on Arrays are mostly cosmetic, so correctness and maintainability do not change.

Hint

Focus on the behavior or tradeoff, not just the keyword.

Answer and rationale

Correct answer: B. Sliding windows reuse previous work, while restarting each subarray check from scratch repeats computation unnecessarily.

Sliding windows reuse previous work, while restarting each subarray check from scratch repeats computation unnecessarily. This is the comparison that usually separates memorization from understanding.

Track: Java