I like the bait-and-switch here. “Let’s make my own app” which almost made me tab out, followed by an interesting dive into the perils of uniqueness in ISBN. I would still say overspecifying is better than under!

Looks like 2007 shows a 404, so maybe there are a few tiny gaps. Still, over 23 years of constant blogging is pretty awesome indeed. It’s in stark contrast to blogspot pages I’ve found that stopped in 2011

Is there a typo in here?

“ Given a set of orders, find a schedule that maximize the makespan of the orders.”

Shouldn't the target be to minimize the makespan?

the word should probably be "optimize"

Well, isn't this challenge about altering a model after-the-fact? I.e. we are stuck with this data in the training set and must figure out a way to clean up the model

Yeah you have to retrain it lol. Sorry about your $100 million model, shouldn't have used all that data indiscriminately.