Beefy Boxes and Bandwidth Generously Provided by pair Networks
XP is just a number
 
PerlMonks  

Re:{3} Removing Duplicates in an array?

by jeroenes (Priest)
on Jun 26, 2001 at 19:36 UTC ( #91631=note: print w/ replies, xml ) Need Help??


in reply to Re: (jeffa) Re: Removing Duplicates in an array?
in thread Removing Duplicates in an array?

At 2818 chars, I golf:

sub u{@h{@_}=@_;keys%h} print join "\t", u("fish","bread","eggs","eggs","fish","butter") #butter bread fish eggs
/me wonders how soon MeowChow will have a shorter solution...

Jeroen
"We are not alone"(FZ)
Update: Too bad. The shortest I can come with is just a rewrite of Davorg's code (he's a golfer in disguise):

sub u{$h{$_}++for@_;grep$h{$_}<2,keys%h}


Comment on Re:{3} Removing Duplicates in an array?
Select or Download Code
Re: Re:{3} Removing Duplicates in an array?
by Tiefling (Monk) on Jun 26, 2001 at 20:11 UTC
    Nice golf, jeroenes. Trouble is, (if your sample output is right) it answers the original question, not the one I posed as a golf. What's the shortest way to produce exactly the elements which occurs uniquely (ie: only once) in the original array? Davorg's code does the right thing, but it's a canonical answer, as he admits, rather than golf.

    Tiefling (Just Another Perl Newbie)

    -----BEGIN GEEK CODE BLOCK----- Version: 3.1 GAT d++ s:- a-- C++ UL P++ L++(+) E? W+(++) N+ o? K w+(--) !O M- V? PS+ PE- Y PGP- t+ 5 X+ R+++ tv- b+++ DI++++ D+ G+ e++ h!(-) y +? ------END GEEK CODE BLOCK------
Re: Re:{3} Removing Duplicates in an array?
by MeowChow (Vicar) on Jun 27, 2001 at 11:16 UTC
    Well, I've already golfed it down to 30 chars, but I thought you might enjoy this rather bizarre one at 33:
    sub u { delete@h{grep$h{$_}++,@_};keys%h }
    As with yours, my%h; should really be prepended to make the sub reusable.
       MeowChow                                   
                   s aamecha.s a..a\u$&owag.print

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://91631]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others examining the Monastery: (11)
As of 2015-07-06 12:51 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    The top three priorities of my open tasks are (in descending order of likelihood to be worked on) ...









    Results (74 votes), past polls