13. The nodes in which of the trees below will be printed in alphabetical order by the following recursiveprocedure?def printTree (Tree) :if (Tree is not None):print (Tree.Value)printTree (Tree.Left)printTree (Tree.Right)А.C.BABBB.

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. The nodes in which of the trees below will be printed in alphabetical order by the following recursive procedure?

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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Concept explainers

Depth First Search

Depth-first search (DFS) also known as Depth First traversal is an algorithm used to traverse or search the nodes in a tree or graph data structure. Traversal usually means visiting all the nodes of a graph. DFS performs in a depth-ward manner. It uses a stack to remember the vertices it has visited. The search starts from the root node, where any arbitrary node is selected as a root node in a graph, and then each node is explored along each branch before performing backtracking. The DFS algorithm uses a recursive technique by following the idea of backtracking. DFS algorithm does this by performing an in-depth search of all the nodes by traversing in a forward direction. If the required node is not found, it starts backtracking to previously visited nodes.

Question

13. The nodes in which of the trees below will be printed in alphabetical order by the following recursive
procedure?
def printTree (Tree) :
if (Tree is not None):
print (Tree.Value)
printTree (Tree.Left)
printTree (Tree.Right)
А.
C.
B
A
B
B
B.

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