Using C++.

Each structure contains the following information:

• Name

• E-mail address

• Telephone number

• City

• Relative

  The program must have (at least) following commands:

1. Initialize (clear all records)

2. Save contact information to file

3. Read contact information from file

4. Add new person to phone book

5. Remove a person from the phone book

6. Print a list of persons who live in the given city

7. Print all contact information, relatives are printed before other persons