preorder
Collocations
4ADJ.
mathcal, partial
VERB + PREORDER
constructed
PREORDER + NOUN
postorder, succeq, traversal, traversals
PREP.
from, in, on
Definitions
verb
To order (goods or services) in advance, before they are available.
To sort or arrange beforehand.
noun
An order for goods or services placed in advance.
A binary relation that is reflexive and transitive.
The relation of logical implication over sentences is an example of a preorder.
Example 436 For each set A, the relation #92;subseteq is a preorder on #92;mathcal#123;P#125;(A).
adj
Such that, recursively, the root is visited before the left and right subtrees.
Now, the preorder traversal of a tree can be constructed from the preorder traversals of the subtrees rooted at the children of the root of the tree.
In the program given above, tree is constructed and is traversed in inorder, preorder and postorder traversal.
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Example Bank
6The relation of logical implication over sentences is an example of a preorder.
WiktionaryExample 436 For each set A, the relation #92;subseteq is a preorder on #92;mathcal#123;P#125;(A).
WiktionaryLet us first compare S#95;1, S#95;2 and S#95;3 w.r.t. the partial preorder #92;succeq.
WiktionaryNow, the preorder traversal of a tree can be constructed from the preorder traversals of the subtrees rooted at the children of the root of the tree.
WiktionaryIn the program given above, tree is constructed and is traversed in inorder, preorder and postorder traversal.
Wiktionary2011, Ananda Rao Akepogu, Radhika Raju Palagiri, Data Structures and Algorithms Using C++, Pearson Education India, page 9.16, The preorder traversal visits a node first after which it traverses its l
Wiktionary