Also “inverting” a binary tree is a trivial computation exercise. There’s a difference between engineering and scripting. Homebrew is very much a scripting problem.
Nobody is saying anything other than that. They're pointing out how dumb the decision is.
"Also “inverting” a binary tree is a trivial computation exercise."
It really isn't, especially if you're not doing it on a regular basis. Which I'd contend 99% of people, including those at Google, are not doing.
"There’s a difference between engineering and scripting. Homebrew is very much a scripting problem."
Aside from, you know, the entire infrastructure around it. That is very much an engineering problem.
I think filtering people based on ability to solve trivial binary tree manipulation problems is brilliant. Seems to objectively be working out great for google thus far.