Medium-Easy Understand Trees & BST Multiple Choice

What is the time complexity of the O(n) balanced-tree check (LC 110) that returns -1 for unbalanced?

Understand — Tests comprehension and ability to explain concepts.

Answer Options

A O(n log n)

B O(n)

C O(n²)

D O(log n)

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This question is from the Trees & BST topic (Data Structures).

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