He implemented a deletion flag—a single byte at the start of each record. Instead of shifting thousands of entries when a book was removed, he would just mark it as 'dead' and let the next 'add' operation resurrect the space. It was elegant. It was efficient. It was the heart of file programming.
The data had survived the void. He hadn't just passed Module A206; he had learned how to make information permanent. Leo hit 'save' one last time, closed his laptop, and for the first time that night, the silence of the lab felt peaceful. Module A206 Programmation fichiers
By 3:00 AM, the terminal finally stopped spitting out segmentation faults. Leo ran the final test script. He added a book, closed the program, reopened it, and searched. He implemented a deletion flag—a single byte at
