Exam 01 Piscine 42 Exclusive 'link' -

Technical Analysis of Exam 01: The exclusive Problem in 42 Piscine

Abstract

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.

• -42 (Negative 42): You failed the Norm (coding style). This includes too many lines, wrong variable names, or forbidden function calls. Yes, negative points exist.
• 0 (Zero): Compilation error or function does nothing.
• 50%: Function works for normal cases but crashes on NULL or empty string.
• 100%: Perfect behavior, no memory issues, no undefined behavior.

| A | B | A XOR B | |---|---|---------| | 0 | 0 | 0 | | 0 | 1 | 1 | | 1 | 0 | 1 | | 1 | 1 | 0 | exam 01 piscine 42 exclusive