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Java: In Java, which comparison about Fast and Slow Pointers is accurate?

Difficulty:

Easy

Questions:

1

Time Limit:

2 minutes

Passing Score:

100%

Question

In Java, which comparison about Fast and Slow Pointers is accurate?

  1. There is no practical difference in behavior, performance, or API design when Fast and Slow Pointers is involved.
  2. The oldest option related to Fast and Slow Pointers is always the right production choice regardless of context.
  3. Differences around Fast and Slow Pointers are mostly cosmetic, so correctness and maintainability do not change.
  4. This pattern avoids extra memory, while a visited-set approach trades memory for simpler reasoning.

Hint

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

Answer and rationale

Correct answer: D. This pattern avoids extra memory, while a visited-set approach trades memory for simpler reasoning.

This pattern avoids extra memory, while a visited-set approach trades memory for simpler reasoning. This is the comparison that usually separates memorization from understanding.

Track: Java