Can C language and C++ be merged?

Answer 1

if you are already building a c program than no you can't just start adding cpp ...
But absolutely if you are building a cpp yes you can add c

Answer 2

Noel Guyarobo here is one of my old codes ...
https://code.sololearn.com/c5LooCJi5JCl/?ref=app

Answer 3

I was told that not many programmers think that C and C++ can be merged. So I wanted to find out otherwise.
Thanks.