Re^3: Perl Golf idea

One character less:

perl -nlE'sub w{[sort/./g]}INIT{$w=w$_=pop}$w~~w&&say' ./dict.txt acer
+t
[download]

And if you don't mind the (second) argument getting printed, another 3 chars less:

perl -nlE'sub w{[sort/./g]}$w||=w$_=pop;$w~~w&&say' ./dict.txt acert
[download]

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Re^4: Perl Golf idea by brx (Pilgrim) on May 01, 2012 at 20:58 UTC
And if you don't mind the (second) argument getting printed, another 3 chars less: `perl -nlE'sub w{[sort/./g]}$w\|\|=w$_=pop;$w~~w&&say' ./dict.txt acert` This one is wrong (only) if the first line of 'dict.txt' contains a valid word (different from arg2). example: `$ cat dict.txt one neo noe bad $ perl -nlE'sub w{[sort/./g]}$w\|\|=w$_=pop;$w~~w&&say' ./dict.txt oen oen neo noe` [download] First word is missing. Anyway, this is a very beautiful version: ++ UPDATE: with an extra newline `perl -E'@a=sort pop=~/./g;say grep@a~~[sort/./g],<>' ./dict.txt acert` UPDATE2: one char useless `perl -E'@a=sort pop=~/./g;say grep@a~~[sort//g],<>' ./dict.txt acert`	[reply] [d/l] [select]
Re^5: Perl Golf idea by thundergnat (Deacon) on May 02, 2012 at 17:08 UTC
Nice. Here's one that returns the correct output using a few characters less: `perl -nE'$w//=pop;[sort$w=~/./g]~~[sort//g]&&print' ./dict.txt acert` [download] or, two characters less than that, but with an extra newline between each word: `perl -nE'$w//=pop;[sort$w=~/./g]~~[sort//g]&&say' ./dict.txt acert` [download] UPDATE: shorter version with correct output: `perl -nlE'$w//=pop;[sort$w=~/./g]~~[sort//g]&&say' ./dict.txt acert` [download] or, same length, more efficient: `perl -nlE'($w//=[sort pop=~/./g])~~[sort//g]&&say' ./dict.txt acert` [download]	[reply] [d/l] [select]