What is the definition for the height of a tree?

Question

I can\'t seem to find a definitive answer for this, I\'m trying to do some elementary proofs on heaps but here\'s what\'s throwing me off a little bit:

Is an empt

Answer 1

Height of a tree is the length of the path from root of that tree to its farthest node (i.e. leaf node farthest from the root).

A tree with only root node has height 0 and a tree with zero nodes would be considered as empty. An empty tree has height of -1. Please check this.

I hope this helps.