Hello fellow monks,

I've written the following code snippet to try and demonstrate my problem: 

#!/perl/bin/perl.exe -w
use strict;

use vars qw(@array @data @compare $num );

$num = 0;
for (0 .. 3) {
    @array = ();
    for (0 .. 1) {
        push @array, $num;
    $num ++;
    }
    push @data, [@array];
}
  
@compare = (2, 4, 5, 6);

print "Contents of \@array\n";
foreach my $record (@data) {
  for my $i (0 .. 1) {
    print $record->[$i] . " ";
    }
    print "\n";
}

print "\n\nContents of \@compare\n";
foreach (@compare) {
    print $_, " ";
    }

[download]
I need to compare the two arrays (one being an array of arrays), against another array, more specifically look at the second element of @array against the contents of @compare and eliminate the duplicates from @array.

I should end up with the following values for @array ... 

Contents of @array
0 1
2 3
6 7


Contents of @compare
2 4 5 6

[download]
Notice that the number 5 was the second element in @array Any ideas ?

In reply to Array element removal by The_Rev

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