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O A binary tree has at most 1 child per node (it is binary: 0 or 1 children). O Recursion can be used to determine the number of nodes in a tree. O Recursion cannot be used to determine the height of a tree (iteration must be used).

O A binary tree has at most 1 child per node (it is binary: 0 or 1 children). O Recursion can be used to determine the number of nodes in a tree. O Recursion cannot be used to determine the height of a tree (iteration must be used).

Database System Concepts
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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please answer 7,8,9

O If you can get from a parent to a child using a reference, then you can get back to the parent using the same reference (i.e. there us an "undirected edge" between a parent and child so you can go from parent to child). O Leaves have no children and the root cannot be a leaf. O The height of a node is the length of the path from that node to the root. O K-ary trees (discussed in class) can be implemented using the "first child, next sibling" method (discussed in the book). O A pre-order traversal visits children after processing the node itself. O A post-order traversal visits children after processing the node itself. O A binary tree has at most 1 child per node (it is binary: 0 or 1 children). O Recursion can be used to determine the number of nodes in a tree. O Recursion cannot be used to determine the height of a tree (iteration must be used). O The textbook provides implementations for pre-, post-, and in-order tree iterators.
Transcribed Image Text:O If you can get from a parent to a child using a reference, then you can get back to the parent using the same reference (i.e. there us an "undirected edge" between a parent and child so you can go from parent to child). O Leaves have no children and the root cannot be a leaf. O The height of a node is the length of the path from that node to the root. O K-ary trees (discussed in class) can be implemented using the "first child, next sibling" method (discussed in the book). O A pre-order traversal visits children after processing the node itself. O A post-order traversal visits children after processing the node itself. O A binary tree has at most 1 child per node (it is binary: 0 or 1 children). O Recursion can be used to determine the number of nodes in a tree. O Recursion cannot be used to determine the height of a tree (iteration must be used). O The textbook provides implementations for pre-, post-, and in-order tree iterators.
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7. a binary tree can have max two child (left and right) in binary (0 or 1)

8. Recursion can also be used to find the number of nodes.

9. Recursion can be used to find the height of a binary tree.

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