From 5c4b8b3d8140ecc67f917f49899d77ee49f9b83d Mon Sep 17 00:00:00 2001
From: fw_qaq <82551626+Jack-Zhang-1314@users.noreply.github.com>
Date: Sat, 26 Nov 2022 18:07:46 +0800
Subject: [PATCH] =?UTF-8?q?Update=200700.=E4=BA=8C=E5=8F=89=E6=90=9C?=
 =?UTF-8?q?=E7=B4=A2=E6=A0=91=E4=B8=AD=E7=9A=84=E6=90=9C=E7=B4=A2.md?=
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---
 problems/0700.二叉搜索树中的搜索.md | 27 ++++++++++++++++++++
 1 file changed, 27 insertions(+)

diff --git a/problems/0700.二叉搜索树中的搜索.md b/problems/0700.二叉搜索树中的搜索.md
index 2ee2bdb0..a0143bd8 100644
--- a/problems/0700.二叉搜索树中的搜索.md
+++ b/problems/0700.二叉搜索树中的搜索.md
@@ -414,6 +414,33 @@ object Solution {
 }
 ```
 
+### rust
+
+递归：
+
+```rust
+use std::cell::RefCell;
+use std::rc::Rc;
+impl Solution {
+    pub fn search_bst(
+        root: Option<Rc<RefCell<TreeNode>>>,
+        val: i32,
+    ) -> Option<Rc<RefCell<TreeNode>>> {
+        if root.is_none() || root.as_ref().unwrap().borrow().val == val {
+            return root;
+        }
+        let node_val = root.as_ref().unwrap().borrow().val;
+        if node_val > val {
+            return Self::search_bst(root.as_ref().unwrap().borrow().left.clone(), val);
+        }
+        if node_val < val {
+            return Self::search_bst(root.unwrap().borrow().right.clone(), val);
+        }
+        None
+    }
+}
+```
+
 <p align="center">
 <a href="https://programmercarl.com/other/kstar.html" target="_blank">
   <img src="../pics/网站星球宣传海报.jpg" width="1000"/>