Comment by ThinkBeat

Back in the before time my computer science exams¹ that lasted around 6h-7h We had to write the code requested with pen and paper and no reference sources or anything else.

and yes the code were to be written with the expectation that whoever graded the paper could run it and it would work. (I dont think anyone every tried typing it in)., and none of the questinos requred short answers.

(Well the ones where programming was a bit part of it. Others were math, where again you hand wrote it and you had no access to any reference books)