The 42 school has a strict coding standard called the (Norm). Exam 01 is exclusive because you are not allowed to turn in code that violates this norm. This means:
Exam 01 is . It doesn't test genius – it tests:
The exam doesn't present you with a single list of problems. Instead, it uses a level-based progressive system.
: Iterating through strings and basic comparisons or replacements. Standard Functions : Typically, only the function is allowed for output. Common Exercise Types
You must know how to traverse strings using pointers or arrays. Common tasks include changing character cases (uppercase to lowercase and vice versa), filtering out specific characters, or reversing text. exam 01 piscine 42 exclusive
Which (like atoi , pointers, or loops) are giving you the most trouble? What level or question did you last get stuck on?
To pass Exam 01, follow this rigid workflow for every single problem: Phase 1: Analyze the Subject
printf("%s", str); // FAIL – forbidden function
Remember, the Piscine is a marathon. Passing Exam 01 gives you a massive confidence boost, but even if you stumble, the system is watching how you adapt, learn from your errors, and fight back in the weeks that follow. The 42 school has a strict coding standard called the (Norm)
Remember the golden rule of the 42 Piscine: . Copy-pasting solutions from GitHub will only lead to failure when you are sitting alone in front of the examshell. Build your own solutions, fail on your own terms, and grow from each mistake.
| Exercise | Why people fail | Solution | |----------|----------------|----------| | ft_putchar | Forgetting write(1, &c, 1) | Never use printf | | ft_putnbr | Edge cases: -2147483648 | Handle min int separately | | ft_print_combn | Recursion/logic error | Use backtracking, not nested loops | | aff_a | No arguments case | If argc < 2, print newline only | | Norminette | Missing newline at EOF | Always add \n at file end |
: Handling cases where the number of arguments provided is incorrect (e.g., displaying only a newline if arguments are missing). Preparation Checklist
Return the number of characters in a string (excluding the null terminator \0 ). It doesn't test genius – it tests: The
Imagine stepping into a room full of strangers, sitting in front of a terminal with zero instructions, and being told to figure it out. That is the essence of the 42 Piscine—a month-long, intensive coding bootcamp that serves as the final selection process for admission to the 42 School network. With its roots in Paris and campuses spanning the globe from Tokyo to Abu Dhabi, 42 has redefined computer science education by eliminating traditional lectures and teachers. Instead, the curriculum is built on .
90% of failures in Exam 01 are due to misreading the requirements (e.g., printing a newline when you shouldn't, or vice-versa). Final Checklist Did you include ? Does your filename match the subject exactly? Did you remove your test main before submitting? Is your code formatted according to the Norm?
You are NOT allowed to use printf . You are barely allowed to use write . Your solution must use the system call write from the <unistd.h> library.
