Which edge case matters for this problem?

Question

Which edge case matters for this problem?

Option A — Correct answer

Using i + 1 would wrongly disallow reuse.

Option B

Whether the graph has weighted edges

Option C

Whether the array is rotated

Option D

Whether the string has vowels

Explanation

Using i + 1 would wrongly disallow reuse.

Combination Sum - Reuse Choice Backtracking Pattern Practice Quiz