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Another update to handle lists where all values are >= 0 (as flagged in 1229492). Also using the while loop instead of List::MoreUtils::firstidx based on the benchmarks in that post.

EDIT - added check for upper bound being >=0, borrowing from code in 1229437.

swl3 => sub { my @list = @input; use List::MoreUtils 0.428; @list = sort {$a<=>$b} @list; if ($list[0] < 0 && $list[-1] >= 0) { my $i = List::MoreUtils::bsearchidx {$_ <=> 0} @list; if ($i < 0) { # no zero, find first positive $i = 0; $i++ while ($list[$i]<0); } else { # find start of zeroes $i-- while !$list[$i]; $i++; } push @list, splice @list, 0, $i; } Compare(\@list,\@output) or die "@list" if DO_CHECK; },

In reply to Re^4: Fastest way to sort a list of integers into 0,1,2,3,-3,-2,-1 by swl
in thread Fastest way to sort a list of integers into 0,1,2,3,-3,-2,-1 by haukex

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