Chuck Norris puzzle discussion


I can’t solve the last problem.
Which action do I have to do?


Yo, I get a weird error coming from outside my code.
It persists even when I put all my code in comment and only write return 0; in the main function.
I’m using C++.
Here is the error message:
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/8/…/…/…/x86_64-linux-gnu/Scrt1.o: in function _start': (.text+0x20): undefined reference tomain’
collect2: error: ld returned 1 exit status

The only puzzle I’ve encountered this problem with.
What should I do?