// second number logic

Here is the ultimate guide to surviving and conquering Exam 01. The Environment: A Digital Fortress

You must log into a dedicated Examshell environment that locks your computer to a specific terminal-based session.

write(1, "a", 1); // or "z" depending on subject write(1, "\n", 1); return (0);

The most exclusive part of the 42 experience is the immediate feedback. When you submit, you wait. The "Grade: 0" notification is a rite of passage.