When was this? I am also talking about UCL, and 'next door to' the Engineering Building. At the time I am talking about (around 1967) things worked out a bit differently to that for us, but perhaps only because our 'Introduction to Computing' was only a once-per-week phenomenon!
Our efforts/attempts were written on 'Coding Forms'. At the end of each (once per week) session, those forms would be 'sent down the road' for punching onto cards and running at the (London University) Computer Centre. It could be (and probably was) that they tuned things around fairly quickly but, from our point of view, it was a week (until the next 'session') before we saw the printouts!
Given that we've been talking about the importance of precision of statements, I think that is only correct if one regards it as a recursive statement, since the reality is that "there is always more than one more bug"
Kind Regards, John
I was at UCL from Oct 1973, graduating in 1976 - so a few years later than you. They still had that (potentially) lethal "jump on, jump off" lift.
We had a "punch-room" with three IBM 029 card punch machines and we prepared our own decks, JCL and all.