Given a binary tree, return thelevel ordertraversal of its nodes values. ie, from left to right, level by level . For example:Given binary tree , , , , , , , return its level order traversal as: confu ...
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Given a binary tree, return the bottom-up level order traversal of its nodes' values. (ie, from left to right, level by level from leaf to root ...
Given a binary tree, return the level order traversal of its nodes' values. (ie, from left to right, level by level). For example:Given binary ...
Given a binary tree, return the bottom-up level order traversal of its nodes' values. (ie, from left to right, level by level from leaf to root ...
Given a binary tree, return the zigzag level order traversal of its nodes' values. (ie, from left to right, then right to left for the next level ...
Given the root of a binary tree, calculate the vertical order traversal of the binary tree. For each node at position (row, col), its left ...
Given a binary tree, return the vertical order traversal of its nodes' values. (ie, from top to bottom, column by column). If two nodes ...
. 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- ...
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 ...
