Exam Rank 02 is a practical, timed coding test within the 42 school curriculum. Students must solve programming challenges written in the C language without using standard library functions, except for those explicitly permitted (like write , malloc , and free ). Core Rules and Constraints
These problems introduce memory allocation and algorithmic logic.
If your exam tier includes a mini- ft_printf , ensure you can write the boilerplate code blindly. Practice handling %s (strings), %d (decimals), and %x (hexadecimals) efficiently using recursion for number printing. Common Mistakes to Avoid
You cannot use printf . You must become entirely comfortable using write(1, &char, 1) . Practice writing helper functions like ft_putchar and ft_putstr instantly without thinking. Step 2: Understand ASCII Mechanics
If an assignment passes a NULL pointer or an empty argument array ( argv ), ensure your code checks for it before dereferencing. A segmentation fault ( SegFault ) will instantly end your grading run. 3. Mismanaging malloc
void ft_putstr(char *str)
