Wont it just return a file not found error?
Headers are only used when you
compile the code, not when you execute it. Have you ever seen any application that was distributed with C or C++ headers?
![Wink ;)](https://www.sfml-dev.org/forums/Smileys/default/wink.gif)
You should
definitely read about headers, libraries, the preprocessing/compiling/linking processes, etc. You can't do anything without this basic knowledge.