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def to tree (obj: Union [int, List])-> Optional [Tree]: """Return the Tree which represents. Return None if is not a valid representation of a Tree. You may not access Tree attributes directly, since they're private This function can be implemented only using the Tree initializer. >>> t = to_tree ([1, [2, [5], [6]], [3, [7], [8, [10]]], [4, [9]]]) >>> t._root 1 >>> t._subtrees [0]._root 2 >>> t._subtrees [1]._root 3 >>> t._subtrees [2]._root ###

def to tree (obj: Union [int, List])-> Optional [Tree]: """Return the Tree which represents. Return None if is not a valid representation of a Tree. You may not access Tree attributes directly, since they're private This function can be implemented only using the Tree initializer. >>> t = to_tree ([1, [2, [5], [6]], [3, [7], [8, [10]]], [4, [9]]]) >>> t._root 1 >>> t._subtrees [0]._root 2 >>> t._subtrees [1]._root 3 >>> t._subtrees [2]._root ###

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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def to tree (obj: Union [int, List])-> Optional [Tree]: """Return the Tree which <obj> represents. Return None if <obj> is not a valid representation of a Tree. You may not access Tree attributes directly, since they're private. This function can be implemented only using the Tree initializer. >>> t = to_tree ([1, [2, [5], [6]], [3, [7], [8, [10]]], [4, [9]]]) >>> t._root 1 >>> t._subtrees [0]._root 2 >>> t._subtrees [1]._root 3 >>> t._subtrees [2]._root 4
Transcribed Image Text:def to tree (obj: Union [int, List])-> Optional [Tree]: """Return the Tree which <obj> represents. Return None if <obj> is not a valid representation of a Tree. You may not access Tree attributes directly, since they're private. This function can be implemented only using the Tree initializer. >>> t = to_tree ([1, [2, [5], [6]], [3, [7], [8, [10]]], [4, [9]]]) >>> t._root 1 >>> t._subtrees [0]._root 2 >>> t._subtrees [1]._root 3 >>> t._subtrees [2]._root 4
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