> Generic sort is O(n log n), but there is

The best generic sorts are O(n log n) (worst case matters), SD was seemingly talking about the command line utility sort , which is generic .

> It is important to understand that hashing is not algorithmically superior to sorting, indeed it is a specific form of sorting in disguise.

I disagree because as I already said counting by hashing is one pass and is loosing any order information.

Sort is about ordering and I don't see a way to make this in one pass.

But I'd be interested to see your evidence about how the information loss from hashing can be compensated ...

Cheers Rolf
(addicted to the Perl Programming Language and ☆☆☆☆ :)
Wikisyntax for the Monastery

In reply to Re^4: Out of Memory when generating large matrix by LanX
in thread Out of Memory when generating large matrix by cathyyihao

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