Which edge case matters for this problem?

Question

Which edge case matters for this problem?

Option A — Correct answer

n = 1 and n = 2 must return directly.

Option B

Whether the array is rotated

Option C

Whether vowels are uppercase

Option D

Whether graph edges are directed

Explanation

n = 1 and n = 2 must return directly.

Climbing Stairs - Fibonacci DP Pattern Practice Quiz