Yes, I think it is fairly _realiable_. It reveals whether the candidate can't really write code. Again, the idea of the coding test in interviews is not to pro

Yes, I think it is fairly _realiable_. It reveals whether the candidate can't really write code. Again, the idea of the coding test in interviews is not to produce production quality code. It is testing that the candidate's brain can write some code. Try to understand that. Is it a perfect measurement? Of course not. Also, the idea is to select an algorithm that doesn't require encyclopedic knowledge of different algorithms. Even (any) sorting algorithms may be too complex for this purpose.