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Please use python3 to solve this question: begin with def GetSExpression(string s): Please do not copy other solutions thanks!

Please use python3 to solve this question: begin with def GetSExpression(string s): Please do not copy other solutions thanks!

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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Please use python3 to solve this question:

begin with def GetSExpression(string s):

Please do not copy other solutions thanks!

5. Is this a tree? A binary tree is represented as a sequence of parent-child pairs, for example: (A,B) (A,C) (B,G) (C,H) (E, F) (B, D) (C, E) A tree with those edges may be illustrated in many ways. Here are two: D E H D G H F The following is a recursive definition for the S-expression of a tree: S-exp(node) = ( node->val (S-exp(node-»first_child)(S-exp(node- >second_child)), if node != NULL = "", node == NULL where, first_child-val < second_child->val (first_child->val is lexicographically smaller than second child-> val) This tree can be represented in an S-expression in multiple ways. The lexicographically smallest way of expressing it is as follows: (A(B(D) (G)) (C(E(F)) (H))) Translate the node-pair representation into its lexicographically smalles expression or report any errors that do not conform to the definition of a binary tree.
Transcribed Image Text:5. Is this a tree? A binary tree is represented as a sequence of parent-child pairs, for example: (A,B) (A,C) (B,G) (C,H) (E, F) (B, D) (C, E) A tree with those edges may be illustrated in many ways. Here are two: D E H D G H F The following is a recursive definition for the S-expression of a tree: S-exp(node) = ( node->val (S-exp(node-»first_child)(S-exp(node- >second_child)), if node != NULL = "", node == NULL where, first_child-val < second_child->val (first_child->val is lexicographically smaller than second child-> val) This tree can be represented in an S-expression in multiple ways. The lexicographically smallest way of expressing it is as follows: (A(B(D) (G)) (C(E(F)) (H))) Translate the node-pair representation into its lexicographically smalles expression or report any errors that do not conform to the definition of a binary tree.
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