9-binary_tree_height.c

#include "binary_trees.h"

/**
 * binary_tree_height - measures the height of a binary tree
 * @tree: pointer to the root node of the tree to measure
 *
 * Return: height of the tree
 *         0 if tree is NULL
 */
size_t binary_tree_height(const binary_tree_t *tree)
{
	size_t h_left = 0;
	size_t h_right = 0;

	if (!tree)
		return (0);

	h_left = tree->left ? 1 + binary_tree_height(tree->left) : 0;
	h_right = tree->right ? 1 + binary_tree_height(tree->right) : 0;
	return (h_left > h_right ? h_left : h_right);
}