When I did tertiary studies in programming there wasn't AI but we did our programming exams in pencil and paper. The "beneficial" prep we had and I had since high school was using punch cards. And 24h turnaround time for compiles. That really makes you think. And you learn how to desk check even thousand line programs. Intense focus, structuring for readability (to catch typos) and simplicity (catch logic errors) helped enormously. Was not unusual to change hundred lines of code and submit knowing that it wouldn't compile but will throw up the other errors I couldn't find. Our exams would give us 4-6 attempts for clean compile AND correct output. The only space where I experience same challenge now (40+ yrs later) is embedded code. Desktops and web stuff have LSPs and dynamic reloads and interpreted code (not a thing for me when learning) with instant feedback.

Lots of skills from those old days that have been lost/ignored in the pretence of productivity.