A bit off topic: interesting link with project euler solutions written in haskell and clojure (and sometimes other languages). With execution time log.<p><a href="http:&#x2F;&#x2F;zach.se&#x2F;project-euler-solutions&#x2F;" rel="nofollow">http:&#x2F;&#x2F;zach.se&#x2F;project-euler-solutions&#x2F;</a>