I really don't remember. It was around 1980 or 81. I think probably on a homemade zx80 or a Commodore Pet.
I wrote my first C program in the late 80s, and I have seen a print out of it this century. If I can find it, poking around in the attic you can see it
I would love to see it if it's not too much effort to find!
I was in the attic looking in old boxes. I found some student programs I wrote in the early 90s, but not in C. I found a couple of still shrink wrapped BSD manuals. Oh and an X Terminal. A hardware one
No sign of the original C program though :)
We're a place where coders share, stay up-to-date and grow their careers.
We strive for transparency and don't collect excess data.