struct Node {
    int value;
    Node *left;
    Node *right;
}

int heightOfTree(Node node){
    if(node ==NULL)
    {
         return 0;
    }
    else
    {
       int lheight=heightOfTree(node->left);
       int rheight = heightOfTree(node->right);
       if(lheight>rheight)
       {
           return lheight;
       }
       else
       {
           return rheight;
       }
    }
}