Presumably in their preferred language, or with acceptable pseudocode? I find that baffling, and I am self-taught and a very mediocre programmer. I'd barely ev

Presumably in their preferred language, or with acceptable pseudocode? I find that baffling, and I am self-taught and a very mediocre programmer. I'd barely even call myself a programmer as I've historically spent more time designing. I can't think of how they might be stumped by it? Is it true even of programmers with experience/age on their side, likely to have encountered loads of real world challenges? I've gone back to read about it a couple of times since first hearing of it - swear I must be missing something?