Sword refers to the depth of the binary tree of offer (45)

Title Description

Enter a binary tree to find the depth of the tree. A path from the root node to the leaf node followed by a node (with root and leaf nodes) to form a tree, the length of the longest path is the depth of the tree.

Code:

<span style= "color: #993399;" >public class Solution {public    int treedepth (TreeNode proot) {        if (proot==null)            return 0;        Return getdepth (proot,0);    }         private int getdepth (TreeNode root,int depth) {        if (root==null)            return depth;        depth++;        Return Math.max (Getdepth (root.left,depth), getdepth (root.right,depth));}    } </span>

Sword refers to the depth of the binary tree of offer (45)