7-1 Exchange the left child and right child of each node in the binary tree (30 points) - Code World

7-1 Exchange the left child and right child of each node in the binary tree (30 points)

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7-1 Exchange the left child and right child of each node in the binary tree (30 points)

Leikou's rewriting notes: Sword refers to Offer 27. Mirroring of the binary tree (traverse all the nodes of the tree using a temporary list, and exchange the left/right child nodes of each node.)

Binary search tree --A1064.Complete Binary Search Tree (30) constructed entirely binary search tree, using the full binary search tree properties: left child is 2x, right child is 2x + 1

Data structure and algorithm exchange left and right subtrees of binary tree

2021-02-26: An array arr is the result of the in-order traversal of the binary tree, and the cost of each edge is the product of the parent node and the child node, which is always open

7-1 Is it the same binary search tree (25 points)

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The Ant Design Tree defaultExpandAll setting is invalid, and it is impossible to expand all tree nodes, obtain the key of the last child node under each node, and then expand all tree nodes through expandedKeys

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7-6 Is a complete binary search tree (30 points)

7-7 Junior Generation (Enhanced Version of Left and Right Brothers) (30 points)

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Given a binary tree, find its maximum depth. The depth of a binary tree is the number of nodes on the longest path from the root node to the farthest leaf node. Explanation: A leaf node is a node that has no child nodes. 【LeetCode Hot 100】

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7-1 Frequency statistics (30 points)

Given the root node root of your binary tree, return the level-order traversal of its node values. (ie layer by layer, visit all nodes from left to right).

PubMed title, the level of known tree traversal sequence and each point, find the tree brothers child list.

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