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] =?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, + mut postorder: Vec, + ) -> Option>> { + 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