Which edge case matters for this problem?
Practice this question from Top K Frequent Elements - Frequency Heap Pattern Practice Quiz, with options and an explanation.
Question
Which edge case matters for this problem?
Option A — Correct answer
The heap must compare frequencies, not raw values.
Option B
Whether the graph is connected
Option C
Whether a string has vowels
Option D
Whether a matrix is square
Explanation
The heap must compare frequencies, not raw values.