From 3f7beb8c8f3d9e06f9932a157ffce92dd7d2aade Mon Sep 17 00:00:00 2001
From: fw_qaq <82551626+Jack-Zhang-1314@users.noreply.github.com>
Date: Sun, 4 Dec 2022 17:59:09 +0800
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---
 ...35.二叉搜索树的最近公共祖先.md | 33 +++++++++++++++++++
 1 file changed, 33 insertions(+)

diff --git a/problems/0235.二叉搜索树的最近公共祖先.md b/problems/0235.二叉搜索树的最近公共祖先.md
index c90b3d8c..97f85437 100644
--- a/problems/0235.二叉搜索树的最近公共祖先.md
+++ b/problems/0235.二叉搜索树的最近公共祖先.md
@@ -418,6 +418,39 @@ object Solution {
 }
 ```
 
+## rust
+
+```rust
+impl Solution {
+    pub fn lowest_common_ancestor(
+        root: Option<Rc<RefCell<TreeNode>>>,
+        p: Option<Rc<RefCell<TreeNode>>>,
+        q: Option<Rc<RefCell<TreeNode>>>,
+    ) -> Option<Rc<RefCell<TreeNode>>> {
+        let q_val = q.as_ref().unwrap().borrow().val;
+        let p_val = p.as_ref().unwrap().borrow().val;
+        let root_val = root.as_ref().unwrap().borrow().val;
+
+        if root_val > q_val && root_val > p_val {
+            return Self::lowest_common_ancestor(
+                root.as_ref().unwrap().borrow().left.clone(),
+                p,
+                q,
+            );
+        };
+
+        if root_val < q_val && root_val < p_val {
+            return Self::lowest_common_ancestor(
+                root.as_ref().unwrap().borrow().right.clone(),
+                p,
+                q,
+            );
+        }
+        root
+    }
+}
+```
+
 
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