Implementation in pseudocode 4. task: Even and odd. We extend common operations on a dictionary D with theoperations Odd (D, a, b) and Even (D, a, b), which return the number ofodd or even elements in the dictionary D that are greater than or equal to a andless than or equal to b. For example, ifD = {665, 963, 330, 851, 334, 424, 696, 620, 706, 957},then Odd (D, 505, 864) returns 2 and Even (D, 505, 864) returns 3.On the other hand both Odd (D, 864, 505) and Even (D, 864, 505) re-turn 0.QUESTIONS:A) (i.) Implement such an extended dictionary D using ordinary linked list andordered linked list. (ii.) What is the time complexity of both operations ineach of implementations? Justify your answer.HINT: Describe the data structure and describe how it is maintained withoperations. Write down a pseudocode for both new operations.B) (i.) Implement such an extended dictionary D using skip list.(ii.) What is the time complexity of both operations in this implementation?Justify your answer.

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Engineering

Computer Science

Implementation in pseudocode

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

Implementation in pseudocode

4. task: Even and odd. We extend common operations on a dictionary D with the
operations Odd (D, a, b) and Even (D, a, b), which return the number of
odd or even elements in the dictionary D that are greater than or equal to a and
less than or equal to b. For example, if
D = {665, 963, 330, 851, 334, 424, 696, 620, 706, 957},
then Odd (D, 505, 864) returns 2 and Even (D, 505, 864) returns 3.
On the other hand both Odd (D, 864, 505) and Even (D, 864, 505) re-
turn 0.
QUESTIONS:
A) (i.) Implement such an extended dictionary D using ordinary linked list and
ordered linked list. (ii.) What is the time complexity of both operations in
each of implementations? Justify your answer.
HINT: Describe the data structure and describe how it is maintained with
operations. Write down a pseudocode for both new operations.
B) (i.) Implement such an extended dictionary D using skip list.
(ii.) What is the time complexity of both operations in this implementation?
Justify your answer.

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