Beefy Boxes and Bandwidth Generously Provided by pair Networks
P is for Practical

Re: Golf for unique digits

by davido (Archbishop)
on Jan 10, 2013 at 09:34 UTC ( #1012630=note: print w/ replies, xml ) Need Help??

in reply to Golf for unique digits

Hmm, this doesn't beat tye's, but matches it, with a different technique. I wish I could find a way to shave a stroke using this method, but I think I've reached the dead end.

perl -lnE'@h{/./g}--;say~~keys%h'

And this adaptation of tye's shaves a stroke:

perl -lnE'say~~s/(.)(?!.*\1)//g'


Comment on Re: Golf for unique digits
Select or Download Code
Replies are listed 'Best First'.
Re^2: Golf for unique digits
by BrowserUk (Pope) on Jan 10, 2013 at 09:58 UTC

    This saves 2 strokes over yours:

    perl -plE"@h{/./g}++;$_=keys%h"

    And this saves 2 more over your version of tye's:

    perl -lpE'$_=s/(.)(?!.*\1)//g'

    With the rise and rise of 'Social' network sites: 'Computers are making people easier to use everyday'
    Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
    "Science is about questioning the status quo. Questioning authority".
    In the absence of evidence, opinion is indistinguishable from prejudice.

Log In?

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://1012630]
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others imbibing at the Monastery: (1)
As of 2015-11-26 23:34 GMT
Find Nodes?
    Voting Booth?

    What would be the most significant thing to happen if a rope (or wire) tied the Earth and the Moon together?

    Results (710 votes), past polls