The big hash takes very little time to load from a pre-generated file of the 10! permutations--it doesn't actually take that long to generate either--and the 350 MB loads easily within my 512 MB ram machine without swapping (if I haven't got much else running at the time).

If raw performance is the criteria, it is by far the quickest and simplest option.

Of course, if the criteria changed to be 11 digits, it starts to becomes impractical, but that's tomorrows problem :)

Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
Lingua non convalesco, consenesco et abolesco. -- Rule 1 has a caveat! -- Who broke the cabal?
"Science is about questioning the status quo. Questioning authority".
The "good enough" maybe good enough for the now, and perfection maybe unobtainable, but that should not preclude us from striving for perfection, when time, circumstance or desire allow.

In reply to Re^4: Determining uniqueness in a string. by BrowserUk
in thread Determining uniqueness in a string. by Yzzyx

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