From f071df11f81f0090e611d8700d9868f38ecde55c Mon Sep 17 00:00:00 2001
From: fw_qaq <82551626+Jack-Zhang-1314@users.noreply.github.com>
Date: Tue, 22 Nov 2022 00:01:41 +0800
Subject: [PATCH 1/3] =?UTF-8?q?Update=200106.=E4=BB=8E=E4=B8=AD=E5=BA=8F?=
 =?UTF-8?q?=E4=B8=8E=E5=90=8E=E5=BA=8F=E9=81=8D=E5=8E=86=E5=BA=8F=E5=88=97?=
 =?UTF-8?q?=E6=9E=84=E9=80=A0=E4=BA=8C=E5=8F=89=E6=A0=91.md?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 ...序与后序遍历序列构造二叉树.md | 28 +++++++++++++++++++
 1 file changed, 28 insertions(+)

diff --git a/problems/0106.从中序与后序遍历序列构造二叉树.md b/problems/0106.从中序与后序遍历序列构造二叉树.md
index 17ba561d..0353ad62 100644
--- a/problems/0106.从中序与后序遍历序列构造二叉树.md
+++ b/problems/0106.从中序与后序遍历序列构造二叉树.md
@@ -1136,6 +1136,34 @@ object Solution {
 }
 ```
 
+## rust
+
+105 从前序与中序遍历序列构造二叉树
+
+```rust
+use std::cell::RefCell;
+use std::rc::Rc;
+impl Solution {
+    pub fn build_tree(
+        mut preorder: Vec<i32>,
+        mut inorder: Vec<i32>,
+    ) -> Option<Rc<RefCell<TreeNode>>> {
+        if preorder.is_empty() {
+            return None;
+        }
+        let root = preorder[0];
+        let index = inorder.iter().position(|&x| x == root).unwrap();
+        let mut root = TreeNode::new(root);
+        root.left = Self::build_tree(
+            preorder.splice(1..index + 1, []).collect(),
+            inorder.splice(0..index, []).collect(),
+        );
+        root.right = Self::build_tree(preorder.split_off(1), inorder.split_off(1));
+        Some(Rc::new(RefCell::new(root)))
+    }
+}
+```
+
 <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"/>

From 3762f1a3e3e4f4f5ec1e3efc4d6ec9cf77079244 Mon Sep 17 00:00:00 2001
From: fw_qaq <82551626+Jack-Zhang-1314@users.noreply.github.com>
Date: Tue, 22 Nov 2022 00:18:08 +0800
Subject: [PATCH 2/3] =?UTF-8?q?Update=200106.=E4=BB=8E=E4=B8=AD=E5=BA=8F?=
 =?UTF-8?q?=E4=B8=8E=E5=90=8E=E5=BA=8F=E9=81=8D=E5=8E=86=E5=BA=8F=E5=88=97?=
 =?UTF-8?q?=E6=9E=84=E9=80=A0=E4=BA=8C=E5=8F=89=E6=A0=91.md?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 ...序与后序遍历序列构造二叉树.md | 24 +++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/problems/0106.从中序与后序遍历序列构造二叉树.md b/problems/0106.从中序与后序遍历序列构造二叉树.md
index 0353ad62..cf5f11d0 100644
--- a/problems/0106.从中序与后序遍历序列构造二叉树.md
+++ b/problems/0106.从中序与后序遍历序列构造二叉树.md
@@ -1138,6 +1138,30 @@ object Solution {
 
 ## rust
 
+106 从中序与后序遍历序列构造二叉树
+
+```rust
+impl Solution {
+    pub fn build_tree(
+        mut inorder: Vec<i32>,
+        mut postorder: Vec<i32>,
+    ) -> Option<Rc<RefCell<TreeNode>>> {
+        if inorder.is_empty() {
+            return None;
+        }
+        let root = postorder.pop().unwrap();
+        let index = inorder.iter().position(|&x| x == root).unwrap();
+        let mut root = TreeNode::new(root);
+        root.left = Self::build_tree(
+            inorder.splice(0..index, []).collect(),
+            postorder.splice(0..index, []).collect(),
+        );
+        root.right = Self::build_tree(inorder.split_off(1), postorder);
+        Some(Rc::new(RefCell::new(root)))
+    }
+}
+```
+
 105 从前序与中序遍历序列构造二叉树
 
 ```rust

From 183a62a9237e0b2e3710985610421984400911e7 Mon Sep 17 00:00:00 2001
From: fw_qaq <82551626+Jack-Zhang-1314@users.noreply.github.com>
Date: Wed, 23 Nov 2022 01:57:45 -0500
Subject: [PATCH 3/3] =?UTF-8?q?Update=200106.=E4=BB=8E=E4=B8=AD=E5=BA=8F?=
 =?UTF-8?q?=E4=B8=8E=E5=90=8E=E5=BA=8F=E9=81=8D=E5=8E=86=E5=BA=8F=E5=88=97?=
 =?UTF-8?q?=E6=9E=84=E9=80=A0=E4=BA=8C=E5=8F=89=E6=A0=91.md?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 ...序与后序遍历序列构造二叉树.md | 28 ++++++++-----------
 1 file changed, 11 insertions(+), 17 deletions(-)

diff --git a/problems/0106.从中序与后序遍历序列构造二叉树.md b/problems/0106.从中序与后序遍历序列构造二叉树.md
index cf5f11d0..e5cbeda3 100644
--- a/problems/0106.从中序与后序遍历序列构造二叉树.md
+++ b/problems/0106.从中序与后序遍历序列构造二叉树.md
@@ -1141,22 +1141,19 @@ object Solution {
 106 从中序与后序遍历序列构造二叉树
 
 ```rust
+use std::cell::RefCell;
+use std::rc::Rc;
 impl Solution {
-    pub fn build_tree(
-        mut inorder: Vec<i32>,
-        mut postorder: Vec<i32>,
-    ) -> Option<Rc<RefCell<TreeNode>>> {
+    pub fn build_tree(inorder: Vec<i32>, postorder: Vec<i32>) -> Option<Rc<RefCell<TreeNode>>> {
         if inorder.is_empty() {
             return None;
         }
+        let mut postorder = postorder;
         let root = postorder.pop().unwrap();
         let index = inorder.iter().position(|&x| x == root).unwrap();
         let mut root = TreeNode::new(root);
-        root.left = Self::build_tree(
-            inorder.splice(0..index, []).collect(),
-            postorder.splice(0..index, []).collect(),
-        );
-        root.right = Self::build_tree(inorder.split_off(1), postorder);
+        root.left = Self::build_tree(inorder[..index].to_vec(), postorder[..index].to_vec());
+        root.right = Self::build_tree(inorder[index + 1..].to_vec(), postorder[index..].to_vec());
         Some(Rc::new(RefCell::new(root)))
     }
 }
@@ -1168,21 +1165,18 @@ impl Solution {
 use std::cell::RefCell;
 use std::rc::Rc;
 impl Solution {
-    pub fn build_tree(
-        mut preorder: Vec<i32>,
-        mut inorder: Vec<i32>,
-    ) -> Option<Rc<RefCell<TreeNode>>> {
+    pub fn build_tree(preorder: Vec<i32>, inorder: Vec<i32>) -> Option<Rc<RefCell<TreeNode>>> {
         if preorder.is_empty() {
             return None;
         }
         let root = preorder[0];
         let index = inorder.iter().position(|&x| x == root).unwrap();
         let mut root = TreeNode::new(root);
-        root.left = Self::build_tree(
-            preorder.splice(1..index + 1, []).collect(),
-            inorder.splice(0..index, []).collect(),
+        root.left = Self::build_tree(preorder[1..index + 1].to_vec(), inorder[0..index].to_vec());
+        root.right = Self::build_tree(
+            preorder[index + 1..].to_vec(),
+            inorder[index + 1..].to_vec(),
         );
-        root.right = Self::build_tree(preorder.split_off(1), inorder.split_off(1));
         Some(Rc::new(RefCell::new(root)))
     }
 }