Do practice problems until you get a feel for how to organise your time.<p>I knew I was going to be given a couple of tests on <a href="https:&#x2F;&#x2F;codility.com&#x2F;" rel="nofollow">https:&#x2F;&#x2F;codility.com&#x2F;</a> so I practiced for a few hours on example problems I found online before. It really helped.