C Language Coding Needed

Job ID: 37907854

Budget: $10 – $30 AUD

Looking for a competent coder proficient in C language to help me create specific program functionalities within a day. The specifics of the programs will be given once the project commences. The key functionalities required are:
- Input validation: The C program needs strict checking and validation of the user input to prevent any errors.
- File handling: The program needs to be capable of handling files which can read, write, and modify them.
- Error handling: The code must also include robust error handling to ensure program stability.

Ideal candidates should have a proven track record in C language with a deep understanding of input validation, file, and error handling. Speed and accuracy are essential as the task needs to be done within a day.

https://cgi.cse.unsw.edu.au/~cs1511/24T1/assignments/ass1/index.html
This is the code that i need to get done