I am casually doing some leetcode in prep for a job search a few months down the line. I've never had to do these problems before, nor do I have a formal CS edu

I am casually doing some leetcode in prep for a job search a few months down the line. I've never had to do these problems before, nor do I have a formal CS education (am a senior dev). While many of the hard problems are quite esoteric, IMO being able to easily power through most of the easy/mediums is 100% a sign of developer competency. Even if you don't remember the exact algorithm, being able to build it from the ground up quickly and accurately through reasonining seems like a pretty solid signifier of a quality developer to me.