This is a weekend task repository for our C program design class, Lottery Management System.

We need a simple system that can help people to insert, update, and track lottery.

We considered the web service design and migrated the same idea to our lottery management system. So we separated the main logic to the user-interface layer, business logic layer, and data persistence layer.

• User-interface layer mainly offers functions that display available options and information the user needs and react to the user's interaction.
• business logic layer mainly offers functions that handle interaction, like insert and update lottery, using APIs of the data persistence layer.
• data persistence layer mainly offers functions that store and read data from local files and generate and maintain the linked list—like IO operations.