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Binary Tree Postorder Traversal

TreeNode(int x) : val(x), left(NULL), right(NULL) {} * }; */ class Solution { public: void PostOrder...=NULL) { PostOrder(root->left,vec); PostOrder(root->right,vec);...} } vector postorderTraversal(TreeNode *root) { vectorvec; PostOrder

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Binary Tree Postorder Traversal — LeetCode

原题链接: http://oj.leetcode.com/problems/binary-tree-postorder-traversal/ 跟 Binary Tree Inorder Traversal...和 Binary Tree Preorder Traversal ，后序遍历的情况就复杂多了。...我后来再看wiki的时候发现有跟Binary Tree Inorder Traversal和Binary Tree Preorder Traversal非常类似的解法，容易统一进行记忆，思路可以参考其他两种...不过同样相比于Binary Tree Inorder Traversal和Binary Tree Preorder Traversal，后序遍历的情况要复杂得多，因为后序遍历中一直要等到孩子结点访问完才能访问自己...如果对这个复杂度结果不是很熟悉的朋友，可以先看看 Binary Tree Inorder Traversal 中的分析，在那个帖子中讲得比较详细。

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33 N-ary Tree Postorder Traversal

题目 Given an n-ary tree, return the postorder traversal of its nodes’ values....Nary-Tree input serialization is represented in their level order traversal, each group of children is...再遍历根节点解答 class Solution { // 存放结果 List list = new ArrayList(); public List postorder...null) return list; // 递归遍历其他节点 for(Node node: root.children) postorder

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Leetcode 145 Binary Tree Postorder Traversal

Given a binary tree, return the postorder traversal of its nodes' values.

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LeetCode 0145 - Binary Tree Postorder Traversal

Binary Tree Postorder Traversal Desicription Given a binary tree, return the postorder traversal of its...TreeNode(int x) : val(x), left(NULL), right(NULL) {} * }; */ class Solution { private: void traversal...(TreeNode* cur, vector& vec) { if(cur == NULL) return ; traversal(cur...->left, vec); traversal(cur->right, vec); vec.push_back(cur->val); } public:...vector postorderTraversal(TreeNode* root) { vector vec; traversal(root, vec

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Binary Tree Postorder Traversal

Binary Tree Postorder Traversal Given a binary tree, return the postorder traversal of its nodes' values

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Leetcode145——Binary Tree Postorder Traversal

问题描述 Given a binary tree, return the postorder traversal of its nodes’ values.

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PAT（甲级）1138.Postorder Traversal（25）

PAT 1138.Postorder Traversal（25） Suppose that all the keys in a binary tree are distinct positive integers...Given the preorder and inorder traversal sequences, you are supposed to output the first number of the...postorder traversal sequence of the corresponding binary tree....输出格式： For each test case, print in one line the first number of the postorder traversal sequence of...(node* root){ if(root){ postorder(root->lchild); postorder(root->rchild);

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Construct Binary Tree from Inorder and Postorder Traversal

链接：https://leetcode.com/problems/construct-binary-tree-from-inorder-and-postorder-traversal/description...Construct Binary Tree from Inorder and Postorder Traversal Given inorder and postorder traversal of a...Construct Binary Tree from Preorder and Inorder Traversal类似。..., 0, postorder.length-1, inorderMap); } public TreeNode buildTree(int[] inorder, int iLeft,..., i+1, iRight, postorder, pLeft+i-iLeft, pRight-1, inorderMap); return cur; } }

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LeetCode 590 N-ary Tree Postorder Traversal

val = _val; children = _children; } }; */ class Solution { public List postorder...} }; */ class Solution { List list = new ArrayList(); public List postorder...return list; } for (Node child : root.children) { postorder...Traversal....Memory Usage: 48.2 MB, less than 40.66% of Java online submissions for N-ary Tree Postorder Traversal

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Leetcode: Construct Binary Tree from Inorder and Postorder Traversal

题目： Given inorder and postorder traversal of a tree, construct the binary tree....思路分析：这道题和上道题《 Leetcode: Construct Binary Tree from Preorder and Inorder Traversal 》的思路类似。...) { if (postorder.empty()) return nullptr; TreeNode *root = makeNode(inorder.begin...(), inorder.end(), postorder.begin(), postorder.end()); return root; } }; Java参考代码： /**..., postorder, 0, postorder.length); return root; } }

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【leetcode】Construct Binary Tree from Inorder and Postorder Traversal

Question： Given inorder and postorder traversal of a tree, construct the binary tree....[postorder[post_offset]]; root->right = buildTreeInOrder(postorder, post_offset-1, inorder,...in_offset, in_offset-i); root->left = buildTreeInOrder(postorder, post_offset-(in_offset-i)-1..., postorder.size()-1, inorder, inorder.size()-1, postorder.size()); } }; 参考推荐： Construct Binary Tree...from Inorder and Postorder Traversal

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N-ary Tree Postorder Traversal

val = _val; children = _children; } }; */ class Solution { public: vector postorder...val = _val; children = _children; } }; */ class Solution { public: vector postorder...reverse(result.begin(), result.end()); } }; Reference https://leetcode.com/problems/n-ary-tree-postorder-traversal

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Leetcode Binary Tree Postorder Traversal(面试题推荐)

此题来自leetcode https://oj.leetcode.com/problems/binary-tree-postorder-traversal/ Given a binary tree..., return the postorder traversal of its nodes' values.

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Leetcode 106 Construct Binary Tree from Inorder and Postorder Traversal

Given inorder and postorder traversal of a tree, construct the binary tree....+1,ie); return root; } TreeNode* buildTree(vector& inorder, vector& postorder...) { return dfs(postorder,0,inorder.size()-1,inorder,0,inorder.size()-1); } };

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LeetCode 0106 - Construct Binary Tree from Inorder and Postorder Traversal

Construct Binary Tree from Inorder and Postorder Traversal Desicription Given inorder and postorder traversal...private: TreeNode* generateTree(int postStart, int postEnd, int inStart, int inEnd, vector& postorder...int inIndex = 0; for(int i = inStart; i <= inEnd; i++) { if(inorder[i] == postorder..., inorder); root->right = generateTree(postEnd-inEnd+inIndex, postEnd-1, inIndex+1, inEnd, postorder...) { return generateTree(0, postorder.size()-1, 0, inorder.size()-1, postorder, inorder);

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Binary Tree Postorder Traversal.go

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Construct Binary Tree from Inorder and Postorder Traversal「建议收藏」

Given inorder and postorder traversal of a tree, construct the binary tree....Traversal....Traversal. /** * Definition for a binary tree node...) { if (null == postorder || postorder.length < 1) { return null; }...return buildTree(inorder, 0, inorder.length - 1, postorder, postorder.length - 1); }

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Construct Binary Tree from Inorder and Postorder Traversal

NULL) {} * }; */ class Solution { public: TreeNode* buildTree(vector& inorder, vector& postorder...) { int current = inorder.size() - 1; return build(postorder, inorder, current, 0, postorder.size...() - 1); } private: TreeNode* build(vector& postorder, vector& inorder, int& current..., inorder, current, index + 1, end); node->left = build(postorder, inorder, current, start, index...return node; } }; Reference https://leetcode.com/problems/construct-binary-tree-from-inorder-and-postorder-traversal

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Construct Binary Tree from Inorder and Postorder Traversal

Problem Given inorder and postorder traversal of a tree, construct the binary tree....For example, given inorder = [9,3,15,20,7] postorder = [9,15,7,20,3] Return the following binary tree...): if not len(postorder): return None root = TreeNode(postorder[-1])...idx = inorder.index(root.val) root.left = self.buildTree(inorder[ : idx], postorder[ : idx])...root.right = self.buildTree(inorder[idx+1 : ], postorder[idx : -1]) return root

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点击加载更多

Binary Tree Postorder Traversal

Binary Tree Postorder Traversal — LeetCode

33 N-ary Tree Postorder Traversal

Leetcode 145 Binary Tree Postorder Traversal

LeetCode 0145 - Binary Tree Postorder Traversal

Binary Tree Postorder Traversal

Leetcode145——Binary Tree Postorder Traversal

PAT（甲级）1138.Postorder Traversal（25）

Construct Binary Tree from Inorder and Postorder Traversal

LeetCode 590 N-ary Tree Postorder Traversal

Leetcode: Construct Binary Tree from Inorder and Postorder Traversal

【leetcode】Construct Binary Tree from Inorder and Postorder Traversal

N-ary Tree Postorder Traversal

Leetcode Binary Tree Postorder Traversal(面试题推荐)

Leetcode 106 Construct Binary Tree from Inorder and Postorder Traversal

LeetCode 0106 - Construct Binary Tree from Inorder and Postorder Traversal

Binary Tree Postorder Traversal.go

Construct Binary Tree from Inorder and Postorder Traversal「建议收藏」

Construct Binary Tree from Inorder and Postorder Traversal

Construct Binary Tree from Inorder and Postorder Traversal

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