Hi, I don't know about you, but I was convinced that TopCoder editorials were mostly abandoned long time ago, but I learnt from today's e-mail from TC (which I assume almost nobody fully reads) that in fact they are in a very good shape and we can find editorials to almost all recent competitions. I thought this is a valuable and nontrivial discovery, so I decided to share it with you. Here they are: https://www.topcoder.com/community/data-science/data-science-editorials/