treefromand二叉树

[LeetCode] Construct Binary Tree from Inorder and Postorder Traversal 由中序和后序遍历建立二叉树

Given inorder and postorder traversal of a tree, construct the binary tree. Note: You may assume that duplicates do not exist in the tree. 这道题要求从中序和后序遍历的结果来重建原二叉树，我们知道中序的遍历顺序是左-根-右，后序的顺序是左-右-根，对于这种树的...

[LeetCode] Construct Binary Tree from Preorder and Inorder Traversal 由先序和中序遍历建立二叉树

Given preorder and inorder traversal of a tree, construct the binary tree. Note: You may assume that duplicates do not exist in the tree. 这道题要求用先序和中序遍历来建立二叉树，跟之前那道Construct Binary Tree from Inorder a...

LeetCode: 106_Construct Binary Tree from Inorder and Postorder Traversal | 根据中序和后序遍历构建二叉树 | Medium

要求：根据中序和后序遍历序列构建一棵二叉树代码如下： 1 struct TreeNode { 2 int val; 3 TreeNode *left; 4 TreeNode *right; 5 TreeNode(int x): val(x),left(NULL), right(NULL) {} 6 }; 7 ...

LeetCode：105_Construct Binary Tree from Preorder and Inorder Traversal | 根据前序和中序遍历构建二叉树 | Medium

要求：通过二叉树的前序和中序遍历序列构建一颗二叉树代码如下： 1 struct TreeNode { 2 int val; 3 TreeNode *left; 4 TreeNode *right; 5 TreeNode(int x): val(x),left(NULL), right(NULL) {} 6 }; ...