Using C++ Complete the getHeight or height function in the editor. It must return the height of a binary tree as an integer.

getHeight or height has the following parameter(s):

root: a reference to the root of a binary tree.

code:

/*The tree node has data, left child and right child

class Node {

int data;

Node* left;

Node* right;

};

*/

int height(Node* root) {

// Write your code here.

}