Using C programming and using Structures or Unions in your program, build a COVID vaccine registration form where any user can register by filling in their First Name, Last Name, Date of Birth (mm/dd/yyyy), Dose number (1 or 2), Date of previous dose, Type of vaccine (e.g. Pfizer, Moderna, Johnson & Johnson etc.), Residential zip code. Upon registration, the system must output a 8 letter alphanumeric code that will be unique to that user. The code is generated as Add functionality in your program such that it will display all the

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
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**COVID Vaccine Registration Program Using C**

Develop a C program utilizing Structures or Unions to create a COVID vaccine registration form. Users should provide the following information:

- **First Name**
- **Last Name**
- **Date of Birth** (format: mm/dd/yyyy)
- **Dose Number** (1 or 2)
- **Date of Previous Dose**
- **Type of Vaccine** (e.g., Pfizer, Moderna, Johnson & Johnson)
- **Residential Zip Code**

**Unique Code Generation:**

Upon registration, generate an 8-letter alphanumeric code unique to the user using the formula:
- `<First letter of First Name>`
- `<First Letter of Last Name>`
- `<Current age of user (as of registration date)>`
- `<First letter of Vaccine Type>`
- `<Last 3 numbers of Zip Code>`

**Program Requirements:**
- Implement functionality to display all user information, each on a separate line.
- Conduct an evaluation trial with at least 10 users. Use pseudo values instead of real personal details.

**Program Functions:**

Include at least the following functions:
- `main()`
- `register()`
- `generate_code()`
- `retrieve()`

This structure will ensure efficient registration, individual identification, and information display.
Transcribed Image Text:**COVID Vaccine Registration Program Using C** Develop a C program utilizing Structures or Unions to create a COVID vaccine registration form. Users should provide the following information: - **First Name** - **Last Name** - **Date of Birth** (format: mm/dd/yyyy) - **Dose Number** (1 or 2) - **Date of Previous Dose** - **Type of Vaccine** (e.g., Pfizer, Moderna, Johnson & Johnson) - **Residential Zip Code** **Unique Code Generation:** Upon registration, generate an 8-letter alphanumeric code unique to the user using the formula: - `<First letter of First Name>` - `<First Letter of Last Name>` - `<Current age of user (as of registration date)>` - `<First letter of Vaccine Type>` - `<Last 3 numbers of Zip Code>` **Program Requirements:** - Implement functionality to display all user information, each on a separate line. - Conduct an evaluation trial with at least 10 users. Use pseudo values instead of real personal details. **Program Functions:** Include at least the following functions: - `main()` - `register()` - `generate_code()` - `retrieve()` This structure will ensure efficient registration, individual identification, and information display.
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