From 4be111b3d170b7f3ff5888d0cb343368818e4fd2 Mon Sep 17 00:00:00 2001
From: fw_qaq <82551626+Jack-Zhang-1314@users.noreply.github.com>
Date: Sat, 26 Nov 2022 18:25:55 +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 | 23 ++++++++++++++++++++
 1 file changed, 23 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 a0143bd8..c09f11b9 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
@@ -441,6 +441,29 @@ impl Solution {
 }
 ```
 
+迭代：
+
+```rust
+use std::cell::RefCell;
+use std::rc::Rc;
+use std::cmp;
+impl Solution {
+    pub fn search_bst(
+        mut root: Option<Rc<RefCell<TreeNode>>>,
+        val: i32,
+    ) -> Option<Rc<RefCell<TreeNode>>> {
+        while let Some(ref node) = root.clone() {
+            match val.cmp(&node.borrow().val) {
+                cmp::Ordering::Less => root = node.borrow().left.clone(),
+                cmp::Ordering::Equal => return root,
+                cmp::Ordering::Greater => root = node.borrow().right.clone(),
+            };
+        }
+        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"/>