Comment by fspear

Can you share some tips on how you achieved this? What did you do if you got stuck on a question you just couldn't solve? Did you look at the answer and memorized it? How many questions did you solve? Were they mostly mediums or hards? What about system design, any specific resources you used?.

I keep coming back to leetcode every few months but I always get stuck on mediums so I'd appreciate any tips you can share!.