Designing an online mobile number directory for a state/province using C (Programming Language), that acts as a database and enables the user to implement various tasks by collecting details of the customer such as customer name, house name, locality, district, service provider and mobile number.

This project is a program for managing an online directory of mobile numbers. The program offers functionality for adding new customer details, searching for customer information, and generating various reports related to mobile numbers and service providers.

• Introduction
• Features
• Usage
• File Structure
• How to Run

The program is designed to manage customer details including the customer's name, house name, locality, district, and service provider mobile number. It allows users to perform tasks related to customer information, such as adding new records, searching for customer details, and generating reports based on the data stored in the directory.

• Admin Module: Includes tasks such as new registration, changing service providers through mobile number porting, and updating address details.
• General User Module: Provides functionalities for searching and reporting customer information including details of a particular customer, percentage of mobile numbers in a given district for each service provider, list of customers using mobile service by a particular service provider, and more.

The program can be used to efficiently manage and retrieve customer information from the directory. With its user-friendly interface, both admins and general users can interact with the directory to perform their respective tasks easily.

The program includes a C file containing the code that defines structures, functions, and the main program logic. Additionally, it utilizes a text file ("dir.txt") for storing the customer data.

• Struct definition for customer details
• Functions for adding customer details, searching customer information, and generating reports
• Main program logic for administering tasks and user interaction

To run this program, you can compile the provided C code and execute the compiled binary file. You can also integrate this project into your preferred development environment or editor for further customization.

Below are the basic steps to run the program:

1. Compile the C code using a suitable compiler.
2. Execute the compiled binary file to launch the program.
3. Follow the prompts to navigate the admin or general user modules and perform the desired tasks.

This README provides an overview of the "Online Mobile Number Directory Management" project, outlining its features, usage, structure, and contributors. For detailed implementation and code documentation, please refer to the actual source files in the repository.