Find height.cpp

/*
Find height
Given a generic tree, find and return the height of given tree.

Input Format:
The first line of input contains data of the nodes of the tree in level order form. The order is: data for root node, number of children to root node, data of each of child nodes and so on and so forth for each node. The data of the nodes of the tree is separated by space.  

Output Format :
The first and only line of output prints the height of the given generic tree.

Constraints:
Time Limit: 1 sec

Sample Input 1:
10 3 20 30 40 2 40 50 0 0 0 0 

Sample Output 1:
3
*/

/************************************************************
 
    Following is the structure for the TreeNode class

    template <typename T>
    class TreeNode {
     public:
        T data;
        vector<TreeNode<T>*> children;
    
        TreeNode(T data) {
            this->data = data;
        }
    
        ~TreeNode() {
            for (int i = 0; i < children.size(); i++) {
                delete children[i];
            }
        }
    };

************************************************************/
#include<vector>

int getHeight(TreeNode<int>* root) {
    // Write your code here
    //corner case 
    if(root == NULL) {
        return 0;
    }
    int count = 0;
	
    for(int i = 0; i < root ->children.size(); i++) {
        int temp = getHeight(root -> children[i]);
        count = max(temp,count);
    }
    return count + 1;
}