

It sort of depends on what you mean by can’t reproduce without looking at hints.
Like, even now if you asked me to write a number guessing game in a language I’ve had to use a lot (Java) I couldn’t do it straight from memory. I haven’t needed to read stdin manually for a long time so I’d have to look at the class and docs to see the best way to pull in a line and parse it into a number, I don’t remember the specifics of the Random class either, so I’d need to double check the methods available and if they produce inclusive or exclusive ranges.
To me that’s normal; I understand the program flow and what needs to be accomplished, but the specific classes and methods are something I don’t keep with detail in my head, using the docs and keeping the language reference handy is normal, in my experience.
They’re working on the IPv6 part right now, just don’t ask when it’ll be done.