I am prepping for some interviews and finding that I either can quickly solve a question, often because I saw it ~year ago when last prepping, or I am completely stuck and can't make progress on the question. I have about ~3 years of industry experience, more so in AI/ML and DevOps/SRE roles, so I'm rarely writing any code similar to LeetCode.

Any suggestions on overcoming this? It feels like I am not learning anything when I check off the super easy questions, but then on the questions I can't crack at all even after 30~60 minutes, I usually take a brief read of the Editorial explanation and then try to return to it to code later in the day/next day.

I currently am in the interview cycle for two companies in the next 1~2 week and have been focusing on the Easy Collection of Top Interview Questions. I'm thinking of switching to the topic specific Explore tracks in the order listed on this page, but worried that will be too easy and thus not actually move me forward.