> This goal does not requires escalation of leetcode exercises difficulty at all. Ok, looks like we've done different leetcode exercises. The ones I have done

> This goal does not requires escalation of leetcode exercises difficulty at all. Ok, looks like we've done different leetcode exercises. The ones I have done seemed to test mostly that I was able to sit down and type for an hour. Which, to be honest, is too much for many. > What is actual difference between learning those in second year of the school vs on your own when you find out employer wants it? The idea is that the employer should be able to give you real problems and trust that you have the basic toolkit to solve them without too much handholding. At least I have never been asked to implement this or that algorithm at work, but there have been quite a few times when one was needed to solve a problem.