leetCode102. Binary Tree Level Order Traversal 二叉树层次遍历
102. Binary Tree Level Order Traversal 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 tree&nb...
[LeetCode]Binary Tree Preorder Traversal
题目：给定一颗二叉树，用非递归的前序遍历方法遍历这颗树 算法： 将根节点压入栈中 若栈非空，则运行循环 取出栈顶二叉树节点 訪问节点 压入节点的右孩子 压入节点的左孩子 /** * Definition for binary tree * public class TreeNode { * int val; * TreeNode left; * T...
leetcode 刷题之路 64 Construct Binary Tree from Inorder and Postorder Traversal
Given inorder and postorder traversal of a tree, construct the binary tree. Note: You may assume that duplicates do not exist in the tree. 给出二叉树的中序遍历和后序遍历结果，恢复出二叉树。 后序遍历序列的最后一个元素值是二叉树的根节点的值。查找该元素在中序遍....
[LeetCode]--107. Binary Tree Level Order Traversal II
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). For example: Given binary tree [3,9,20,null,null,15...
[LeetCode]--102. Binary Tree Level Order Traversal
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 tree [3,9,20,null,null,15,7], 3 / \ 9 20 / \ ...
java-Leetcode- Binary Tree Traversal
构造树： public class TreeNode { int val; TreeNode left; TreeNode right; TreeNode(int x) { val = x;} } 递归： public class Solution { List<Integer> result = new ArrayList<...
LeetCode: Binary Tree Level Order Traversal 层序遍历二叉树
Binary Tree Level Order Traversal 题目描述： Given a binary tree, return the level order traversal of its nodes' values. (ie, from left to right, level by level). For example: Given b...
LeetCode 145 Binary Tree Postorder Traversal（二叉树的后续遍历）+（二叉树、迭代）
版权声明：转载请联系本人，感谢配合！本站地址：http://blog.csdn.net/nomasp https://blog.csdn.net/NoMasp/article/details/50933610 翻译 给定一个二叉树，返回其后续遍历的节点的值。 例如： 给定二叉树为 {1， #， 2， 3...
LeetCode 144 Binary Tree Preorder Traversal（二叉树的前序遍历）+（二叉树、迭代）
版权声明：转载请联系本人，感谢配合！本站地址：http://blog.csdn.net/nomasp https://blog.csdn.net/NoMasp/article/details/50931535 翻译 给定一个二叉树，返回其前序遍历的节点的值。 例如： 给定二叉树为 {1，#， 2， ...
LeetCode 94 Binary Tree Inorder Traversal（二叉树的中序遍历）+（二叉树、迭代）
版权声明：转载请联系本人，感谢配合！本站地址：http://blog.csdn.net/nomasp https://blog.csdn.net/NoMasp/article/details/50930671 翻译 给定一个二叉树，返回其中序遍历的节点的值。 例如： 给定二叉树为 {1， #， 2，...
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