C Piscine Exam 01 -
You cannot use <stdio.h> (no printf for debugging in the final submission – though you can use it during development if you comment it out!). You cannot use <string.h> . You must rewrite strlen , strcpy , etc., by hand.
The environment is notoriously strict. A single misplaced semicolon, a forgotten newline in a ft_putchar function, or a "Norminette" (coding style) violation can result in a failing grade for a specific problem. This teaches a vital lesson early in a programmer's career: In the Piscine, "almost working" is functionally identical to "not working at all." Core Concepts Tested c piscine exam 01
So, close this article. Open your terminal. Type vim exam_01_prep.c . And start writing ft_atoi_base from scratch—without looking at the internet. You cannot use <stdio