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文章 2017-12-15 来自：开发者社区

[LeetCode] Binary Tree Vertical Order Traversal 二叉树的竖直遍历

Given a binary tree, return the vertical order traversal of its nodes' values. (ie, from top to bottom, column by column). If two nodes are in the same row and column, the order should be fr...

文章 2017-12-11 来自：开发者社区

[LeetCode] Binary Tree Level Order Traversal 二叉树层序遍历

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,#,#,15,7}, 3 / \ 9 20 / \ .....

文章 2017-12-11 来自：开发者社区

[LeetCode] Binary Tree Level Order Traversal II 二叉树层序遍历之二

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,...

文章 2017-12-04 来自：开发者社区

[LeetCode] Binary Tree Preorder Traversal 二叉树的先序遍历

Given a binary tree, return the preorder traversal of its nodes' values. For example: Given binary tree {1,#,2,3}, 1 \ 2 / 3 return [1,2,3]. Note: Recursive solution is trivia...

文章 2017-12-04 来自：开发者社区

[LeetCode] Binary Tree Postorder Traversal 二叉树的后序遍历

Given a binary tree, return the postorder traversal of its nodes' values. For example: Given binary tree {1,#,2,3}, 1 \ 2 / 3 return [3,2,1]. Note: Recursive solution is trivi...

文章 2017-12-04 来自：开发者社区

[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....

文章 2017-12-03 来自：开发者社区

[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....

文章 2017-12-03 来自：开发者社区

[LeetCode] Binary Tree Zigzag Level Order Traversal 二叉树的之字形层序遍历

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 and alternate between). For example: Given b...

文章 2017-12-03 来自：开发者社区

[LeetCode] Binary Tree Inorder Traversal 二叉树的中序遍历

Given a binary tree, return the inorder traversal of its nodes' values. For example: Given binary tree {1,#,2,3}, 1 \ 2 / 3 return [1,3,2]. Note: Recursive solution is trivial...

文章 2017-11-14 来自：开发者社区

LeetCode之Binary Tree Level Order Traversal 层序遍历二叉树

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 binary tree {3,9,20,#,#,15,7}, 3 / \ 9 20 ...

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