This worked wonderfully for me when prepping for interviews the last time I searched for a job. I just committed to 3 months of doing the Leetcode monthly challenge at a minimum. Some days I did more, yes, but only when I felt like it.
By the end of the experiment, I'd seen the majority of algorithms and data structures problem classes that I'd likely ever see in an actual interview. Just doing the daily practice was enough to keep my muscle memory sharp, and in an interview setting, being quick to bang out an algorithm almost always gives you good marks.
To test it out further, after I did my first interview (and felt I aced it), I did not do any daily practice for about 3 weeks between that and my next one. The difference was shocking. I was noticeably slower at answering very similar questions, and occasionally got stuck on things I knew I should know.
This is pretty much exactly how my experience was. I did the leetcode monthly challenge for about 4 months and did pretty well on my interviews. I got a job but I still had some more interviews scheduled. I stopped practicing after that for about two weeks and the interviews were much worse.
By the end of the experiment, I'd seen the majority of algorithms and data structures problem classes that I'd likely ever see in an actual interview. Just doing the daily practice was enough to keep my muscle memory sharp, and in an interview setting, being quick to bang out an algorithm almost always gives you good marks.
To test it out further, after I did my first interview (and felt I aced it), I did not do any daily practice for about 3 weeks between that and my next one. The difference was shocking. I was noticeably slower at answering very similar questions, and occasionally got stuck on things I knew I should know.