Beefy Boxes and Bandwidth Generously Provided by pair Networks
more useful options

Comment on

( #3333=superdoc: print w/replies, xml ) Need Help??
Well, heck, if we're going to do this re-posting in a different medium thing, here's what I had on FWP. Without benchmarking, I put my money on it being faster.
#!/usr/bin/perl -w use strict; local $" = ','; while (<DATA>) { chomp; my @chars = split //; my $index = -1; my %seen = (); my $answer = [""]; while (++$index < @chars) { if (exists $seen{$chars[$index]}) { answer_set(\%seen, $answer); $index = $seen{$chars[$index]}; %seen = (); } else { $seen{$chars[$index]} = $index; } } answer_set(\%seen, $answer); print "$_: @$answer\n"; } sub answer_set { my $seen = shift; goto 'JUMP_' . ((keys %$seen <=> length $_[0][0]) + 1); JUMP_0: return; JUMP_2: $_[0] = []; JUMP_1: push @{$_[0]}, join "", sort { $seen->{$a} <=> $seen->{$b} } keys %$seen; return; } __DATA__ mississippi abcbef adbcbef that abcdefa abcdabc testing this test abcdefg


In reply to Re: Unique-Character Substring by dchetlin
in thread Unique-Character Substring by japhy

Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post; it's "PerlMonks-approved HTML":

  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.
  • Log In?

    What's my password?
    Create A New User
    and all is quiet...

    How do I use this? | Other CB clients
    Other Users?
    Others meditating upon the Monastery: (3)
    As of 2017-12-18 03:23 GMT
    Find Nodes?
      Voting Booth?
      What programming language do you hate the most?

      Results (466 votes). Check out past polls.