This is my method for sorting parallel arrays. It needs some work because it's very slow. Any help is appreciated.
sub parasort (&@) { my($coderef, $master_array, @arrayrefs) = @_; my(%hash, @final); @{$final[0]} = sort {&$coderef;} @{$master_array}; foreach my $m (0 .. $#{@{$master_array}}) { foreach my $s (0 .. $#arrayrefs) { push @{$hash{$$master_array[$m]}[$s];}, $arrayrefs[$s][$m] +; } } foreach my $m (sort {&$coderef;} keys %hash) { $t = 1; foreach my $s (@{$hash{$m};}) { push @{$final[$t]}, @{$s}; ++$t; } } return @final; } my @array1 = (10, 9, 8, 7, 6, 5, 5, 3, 2, 1); my @array2 = ( 3, 6, 2, 5, 6, 7, 8, 3, 2, 5); my @array3 = ( 4, 6, 7, 4, 3, 2, 5, 7, 8, 9); my ($array1, $array2, $array3) = parasort { $a <=> $b } \@array1, \@ar +ray2, \@array3; #returns arrayrefs

In reply to Parallel Array Sorting by Gunth

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