Help me out in c language last program i have got the answer of 2 but not the 1 one.

Question

Conditional Compilation Directives:

Fill in the blanks to include the printf statement if LEVEL macro is not defined.

#if [??????????] (LEVEL)

printf("hello");

#
endif

Answer 1

i'm stuck on this one too.
isn't it #ifndef (if n defined) { // do something }
keeps marking it as wrong..

Answer 2

the answer is !defined
As we have to check whether it is defined or not

Answer 3

!defined

Answer 4

Learn more about it here 👇

http://www.cplusplus.com/doc/tutorial/preprocessor/