Proud to say 19 hours straight.

My uni has a infamous course work assignment which took about 27 hours to train on the lab PCs.

The issue was we only had a week to do it. So you had to code it, then run it and make it run first time to have a good time.

As we all know, that’s not realistic and I remember staying up the entire time to make sure I had sufficient time to train it. Was a nightmare but got a good grade.