1. You have to save each contact based on their telecom operator. If there is no contact of a specific telecom operator, that operator should not be shown in the phone book. If a contact number, Starts with '017' or '013' then the telecom operator is Grameenphone Starts with '018' then the telecom operator is Robi Starts with '016' then the telecom operator is Airtel Starts with anything else then the telecom operator is Others While printing the phonebook as output the contacts under each telecom operator should be shown in alphabetically sorted order based on the contact names. See the sample output for clarification.

1. You have to save each contact based on their telecom operator. If there is no contact of a specific telecom operator, that operator should not be shown in the phone book. If a contact number, Starts with '017' or '013' then the telecom operator is Grameenphone Starts with '018' then the telecom operator is Robi Starts with '016' then the telecom operator is Airtel Starts with anything else then the telecom operator is Others While printing the phonebook as output the contacts under each telecom operator should be shown in alphabetically sorted order based on the contact names. See the sample output for clarification.

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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