From b5e3b801d37b290b48d03cdca1ef3a81d680e95b Mon Sep 17 00:00:00 2001
From: Elio Zhou <30508272+eliozh@users.noreply.github.com>
Date: Wed, 11 Sep 2024 18:56:36 +0800
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优化Rust版本0236.二叉树的最近公共祖先代码
---
 problems/0236.二叉树的最近公共祖先.md | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/problems/0236.二叉树的最近公共祖先.md b/problems/0236.二叉树的最近公共祖先.md
index 5e80e702..2e94f7a7 100644
--- a/problems/0236.二叉树的最近公共祖先.md
+++ b/problems/0236.二叉树的最近公共祖先.md
@@ -454,7 +454,11 @@ impl Solution {
         p: Option<Rc<RefCell<TreeNode>>>,
         q: Option<Rc<RefCell<TreeNode>>>,
     ) -> Option<Rc<RefCell<TreeNode>>> {
-        if root == p || root == q || root.is_none() {
+        if root.is_none() {
+            return root;
+        }
+        if Rc::ptr_eq(root.as_ref().unwrap(), p.as_ref().unwrap()) 
+            || Rc::ptr_eq(root.as_ref().unwrap(), q.as_ref().unwrap()) {
             return root;
         }
         let left = Self::lowest_common_ancestor(