Exam 01 Piscine 42 Exclusive [FREE]

The 42 Piscine examination system evaluates fundamental C programming skills under strict memory and function usage constraints. Exam 01 often features a problem named exclusive (or ft_exclusive), requiring the implementation of a function that returns a bitwise exclusive OR (XOR) operation at the byte level, while adhering to forbidden standard library functions. This paper dissects the problem, provides a compliant solution, and discusses common mistakes and testing strategies.

One feature that makes Exam 01 truly unique to 42 is the Moulinette (the automated grading system) is compiled with fsanitize=address for memory leaks. In most coding exams, if your program leaks memory but returns the correct value, you might pass. Not here. exam 01 piscine 42 exclusive

Exclusive Rule: If you allocate memory with malloc and forget to free it, even if the output is correct, the exam grades you as a failure for that exercise. Leaks are considered crashes. This forces Piscine students to rigorously pair free() with every malloc() from day one. The 42 Piscine examination system evaluates fundamental C

The 42 school has a strict coding standard called the Norme (Norm). Exam 01 is exclusive because you are not allowed to turn in code that violates this norm. This means: One feature that makes Exam 01 truly unique

If your code has a Norm error (e.g., an extra empty line), Renderium rejects it instantly. You get a 0 for that exercise. You cannot bypass this. That is the "exclusive" difficulty.