Given preorder and inorder traversal of a tree, construct the binary tree. Note:You may assume that duplicates do not exist in the tree. For example, given Return the following binary tree: 这道题要求用先序和 ...
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Return any binary tree that matches the given preorder and postorder traversals. Values in the traversals pre and post are distinct positive ...
. 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- ...
Given a binary tree, return the preorder traversal of its nodes' values. Example: Follow up: Recursive solution is trivial, could you do ...
Given preorder and inorder traversal of a tree, construct the binary tree. You may assume that duplicates do not exist ...
it iteratively? 二叉树的中序遍历顺序为左-根-右，可以有递归和非递归来解，其中非递归解法又 ...
Given a binary tree, return the inorder traversal of its nodes' values. For example:Given binary tree {1,#,2,3}, return [1,3,2]. Note ...
Given a binary tree with N nodes, each node has a different value from {1, ..., N}. A node in this binary tree can be flipped by swapping the left ...
We run a preorder depth first search on the `root`of a binary tree. At each node in this traversal, we output D dashes (where D is the depth ...
