diff --git a/problems/二叉树理论基础.md b/problems/二叉树理论基础.md index 55383e91..d4dfe0c6 100644 --- a/problems/二叉树理论基础.md +++ b/problems/二叉树理论基础.md @@ -188,6 +188,21 @@ struct TreeNode { Java: +```java +public class TreeNode { + int val; + TreeNode left; + TreeNode right; + TreeNode() {} + TreeNode(int val) { this.val = val; } + TreeNode(int val, TreeNode left, TreeNode right) { + this.val = val; + this.left = left; + this.right = right; + } +} +``` + Python: