From 407cb6b371e52457dc70f32d8e33b2bccff12845 Mon Sep 17 00:00:00 2001
From: Omooo <869759698@qq.com>
Date: Mon, 13 Jul 2020 13:59:26 +0800
Subject: [PATCH] =?UTF-8?q?Update=20=E4=BA=8C=E5=8F=89=E6=A0=91=E7=9B=B8?=
 =?UTF-8?q?=E5=85=B3.md?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../Algorithm/剑指 Offer/二叉树相关.md | 35 +++++++++++++++++++
 1 file changed, 35 insertions(+)

diff --git a/blogs/Algorithm/剑指 Offer/二叉树相关.md b/blogs/Algorithm/剑指 Offer/二叉树相关.md
index b4e060e..84ec5c6 100644
--- a/blogs/Algorithm/剑指 Offer/二叉树相关.md	
+++ b/blogs/Algorithm/剑指 Offer/二叉树相关.md	
@@ -325,3 +325,38 @@ class Solution {
 }
 ```
 
+#### [32 - III. 从上到下打印二叉树 III](https://leetcode-cn.com/problems/cong-shang-dao-xia-da-yin-er-cha-shu-iii-lcof/)
+
+```java
+class Solution {
+
+    public List<List<Integer>> levelOrder(TreeNode root) {
+        List<List<Integer>> res = new ArrayList<>();
+        if (root == null) {
+            return res;
+        }
+        Deque<TreeNode> deque = new LinkedList<>();
+        deque.add(root);
+        while (!deque.isEmpty()) {
+            int l = deque.size();
+            List<Integer> list = new ArrayList<>(l);
+            for (int i = 0; i < l; i++) {
+                TreeNode node = deque.poll();
+                list.add(node.val);
+                if (node.left != null) {
+                    deque.add(node.left);
+                }
+                if (node.right != null) {
+                    deque.add(node.right);
+                }
+            }
+            if (res.size() % 2 == 1) {
+                Collections.reverse(list);
+            }
+            res.add(list);
+        }
+        return res;
+    }
+}
+```
+