int height(Node* root)
{
// Base case: empty tree has height 0
if (root == nullptr)
return 0;
// recur for left and right subtree and consider maximum depth
return 1 + max(height(root->left), height(root->right));
}
// finding height of a binary tree in c++.
int maxDepth(node* node)
{
if (node == NULL)
return 0;
else
{
/* compute the depth of each subtree */
int lDepth = maxDepth(node->left);
int rDepth = maxDepth(node->right);
/* use the larger one */
if (lDepth > rDepth)
return(lDepth + 1);
else return(rDepth + 1);
}
}
height(10) = max(height(5), height(30)) + 1
height(30) = max(height(28), height(42)) + 1
height(42) = 0 (no children)
height(28) = 0 (no children)
height(5) = max(height(4), height(8)) + 1
height(4) = 0 (no children)
height(8) = 0 (no children)