[bulldog13]

Memorizing is meant in a different context.

Ultimately the problems boil down into a few "types". So you are memorizing the types.

https://dev.to/fahimulhaq/14-patterns-to-ace-any-coding-inte... https://neetcode.io/

[curiousllama]

As a sidenote: this holds true for other types of arbitrary-interview-riddles. There's only 3-5 "frameworks" you need to memorize/apply for consulting case interviews. Finance probability problems typically test one of ~a dozen prob/stat formulae + ability to multiply 3-digit numbers in your head.

After all, it has to be manageable for the interviewers to make sure all the questions are roughly equivalent in difficulty.