Which optimized hashing pattern solves this lesson cleanly?
Practice this question from Longest Consecutive Sequence - Hash Set Pattern Practice Quiz, with options and an explanation.
Question
Which optimized hashing pattern solves this lesson cleanly?
Option A — Correct answer
Hash set lookup with sequence-start detection.
Option B
Plain nested loops without stored state
Option C
Two pointers after sorting every time
Option D
Stack matching only
Explanation
Hash set lookup with sequence-start detection.