1) AVL rotation: Given a below BST subtree, we can use double rotation to reduce the height by 1. Double rotation can be performed with 2 times of single rotation. Please draw the subtree after the first single rotation and second single rotation, such that it performs a double rotation to becomes a subtree with h = h-1. a = z c = y b = x To Subtree after first single rotation: Subtree after second single rotation:

1) AVL rotation: Given a below BST subtree, we can use double rotation to reduce the height by 1. Double rotation can be performed with 2 times of single rotation. Please draw the subtree after the first single rotation and second single rotation, such that it performs a double rotation to becomes a subtree with h = h-1. a = z c = y b = x To Subtree after first single rotation: Subtree after second single rotation:

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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1) AVL rotation: Given a below BST subtree, we can use double rotation to reduce the height
by 1. Double rotation can be performed with 2 times of single rotation. Please draw the
subtree after the first single rotation and second single rotation, such that it performs a
double rotation to becomes a subtree with h = h-1.
a = z
c = y
b =x
To
T
Subtree after first single rotation:
Subtree after second single rotation:

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