Answered: python: In a binary search tree, write…

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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Question

python: In a binary search tree, write another way of function that takes in a root, p, and checks whether the tree rooted in p is a binary search tree or not. What is the time complexity of your function?

def is_bst(self, p):

root=p

def helper(root, l, r):

if not root:

return True

if not (left<root.val and root.val<right):

return False

return helper(root.l, l, root.val) and helper(root.r, root.val, r)

return helper(root, float('-inf'), float('inf'))

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