[saberience]

Every programming job is different. I worked for 6 years at a well known videogames company and never had to use a vector or a tree ever. I was mostly using lists and dictionaries and occasionally an array, and that’s about it. I never had to do anything more complex data structure wise than that and I never really had to write my own data structure nor anything approaching an algorithm.

[leetcrew]

that makes sense, but presumably you knew enough about vectors and trees to understand why you weren't using them?