Similar to Project Euler but about bioinformatics I would say http://rosalind.info/problems/locations/ http://rosalind.info/problems/locations/ But for learnin

Similar to Project Euler but about bioinformatics I would say http://rosalind.info/problems/locations/ http://rosalind.info/problems/locations/ But for learning a specific programming language and confront with other developers, not mentioned yet, there is http://exercism.io/ http://exercism.io/ Edit: also http://www.puzzlenode.com/ http://www.puzzlenode.com/