18 lines
662 B
Java
18 lines
662 B
Java
|
# 55.1 二叉树的深度
|
|||
|
|
|
|||
|
|
[NowCoder](https://www.nowcoder.com/practice/435fb86331474282a3499955f0a41e8b?tpId=13&tqId=11191&tPage=1&rp=1&ru=/ta/coding-interviews&qru=/ta/coding-interviews/question-ranking&from=cyc_github)
|
|||
|
|
|
|||
|
|
## 题目描述
|
|||
|
|
|
|||
|
|
从根结点到叶结点依次经过的结点（含根、叶结点）形成树的一条路径，最长路径的长度为树的深度。
|
|||
|
|
|
|||
|
|
<img src="https://cs-notes-1256109796.cos.ap-guangzhou.myqcloud.com/ba355101-4a93-4c71-94fb-1da83639727b.jpg" width="350px"/>
|
|||
|
|
|
|||
|
|
## 解题思路
|
|||
|
|
|
|||
|
|
```java
|
|||
|
|
public int TreeDepth(TreeNode root) {
|
|||
|
|
return root == null ? 0 : 1 + Math.max(TreeDepth(root.left), TreeDepth(root.right));
|
|||
|
|
}
|
|||
|
|
```
|