A binary tree with just one node has height
A) -1
B) 0
C) 1
D) None of the above

Name: A binary tree with just one node has height A) -1 B) 0 C) 1 D) None of the above
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Question

Quizplus · Accepted Answer

A binary tree with just one node has no children, so its height is 0. By definition, the height of a node is the number of edges on the longest path from that node to a leaf node. In this case, the only node is also a leaf node, so the longest path from it to a leaf node is 0.

A Binary Tree with Just One Node Has Height