From 9d0872312c211f877e7af9dc2e76302961fd46af Mon Sep 17 00:00:00 2001
From: fw_qaq <82551626+Jack-Zhang-1314@users.noreply.github.com>
Date: Sun, 13 Nov 2022 16:16:48 +0800
Subject: [PATCH] =?UTF-8?q?Update=200226.=E7=BF=BB=E8=BD=AC=E4=BA=8C?=
 =?UTF-8?q?=E5=8F=89=E6=A0=91.md?=
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---
 problems/0226.翻转二叉树.md | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)

diff --git a/problems/0226.翻转二叉树.md b/problems/0226.翻转二叉树.md
index 9c34ce20..3136c0be 100644
--- a/problems/0226.翻转二叉树.md
+++ b/problems/0226.翻转二叉树.md
@@ -857,6 +857,36 @@ object Solution {
 }
 ```
 
+### rust
+
+```rust
+impl Solution {
+    //* 递归 */
+    pub fn invert_tree(root: Option<Rc<RefCell<TreeNode>>>) -> Option<Rc<RefCell<TreeNode>>> {
+        if let Some(node) = root.as_ref() {
+            let (left, right) = (node.borrow().left.clone(), node.borrow().right.clone());
+            node.borrow_mut().left = Self::invert_tree(right);
+            node.borrow_mut().right = Self::invert_tree(left);
+        }
+        root
+    }
+    //* 迭代 */
+    pub fn invert_tree(root: Option<Rc<RefCell<TreeNode>>>) -> Option<Rc<RefCell<TreeNode>>> {
+        let mut stack = vec![root.clone()];
+        while !stack.is_empty() {
+            if let Some(node) = stack.pop().unwrap() {
+                let (left, right) = (node.borrow().left.clone(), node.borrow().right.clone());
+                stack.push(right.clone());
+                stack.push(left.clone());
+                node.borrow_mut().left = right;
+                node.borrow_mut().right = left;
+            }
+        }
+        root
+    }
+}
+```
+
 <p align="center">
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