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traversal    
遍历

遍历

traversal
n 1: taking a zigzag path on skis [synonym: {traversal}, {traverse}]
2: travel across [synonym: {traversal}, {traverse}]

Processing {nodes} in a {graph} one at a time, usually
in some specified order. Traversal of a tree is {recursive}ly
defined to mean visiting the {root node} and traversing its
children. Visiting a node usually involves transforming it in
some way or collecting data from it.

In "pre-order traversal", a node is visited __before__ its
children. In "post-order" traversal, a node is visited
__after__ its children. The more rarely used "in-order"
traversal is generally applicable only to binary trees, and is
where you visit first a node's left child, then the node
itself, and then its right child.

For the binary tree:

T
/ \
I S
/ \
D E

A pre-order traversal visits the nodes in the order T I D E S.
A post-order traversal visits them in the order D E I S T. An
in-order traversal visits them in the order D I E T S.

(2001-10-01)


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英文字典中文字典相关资料:


  • Tree Traversal Techniques - GeeksforGeeks
    Tree Traversal techniques include various ways to visit all the nodes of the tree Unlike linear data structures (Array, Linked List, Queues, Stacks, etc) which have only one logical way to traverse them, trees can be traversed in different ways In this article, we will discuss all the tree traversal techniques along with their uses
  • TRAVERSAL Definition Meaning - Merriam-Webster
    The meaning of TRAVERSAL is the act or an instance of traversing Examples are automatically compiled from online sources to show current usage





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