Okay, after having complained that other people's solutions don't work, at last I have a reasonably short version of my own. 113 characters:

sub f{
#       10        20        30        40        50        60        70
+        80        90       100       110
#23456789.123456789.123456789.123456789.123456789.123456789.123456789.
+123456789.123456789.123456789.123456789.123
my%r;%i=@_;@{$r{$_}}{map{$_,keys%{$r{$_}}}@{$i{$_}}}=0for(@i=keys%i)x@
+i;sort{keys%{$r{$a}}<=>keys%{$r{$b}}}keys%r
}

[download]

I think it will work on all correct data, but localtime is 02:20, which tends to leave me vulnerable, so I might have a different opinion in the morning. One thing I shall probably see in the morning is how to shorten that sort block. :-\

Update:Told you I'd shorten it -- at 111 characters:

sub f{
#       10        20        30        40        50        60        70
+        80        90       100       110
#23456789.123456789.123456789.123456789.123456789.123456789.123456789.
+123456789.123456789.123456789.123456789.1
sub Q{keys%{$_[0]}}my%r;%i=@_;@{$r{$_}}{map{$_,Q$r{$_}}@{$i{$_}}}=0for
+(@i=Q\%i)x@i;sort{Q($r{$a})- Q$r{$b}}Q\%r
}

[download]

The Sidhekin
print "Just another Perl ${\(trickster and hacker)},"

In reply to Re: (Golf) Dependency List Prioritization by Sidhekin
in thread (Golf) Dependency List Prioritization by tadman

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