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Re^3: Homework question list

by Tanktalus (Canon)
on May 22, 2005 at 15:37 UTC ( [id://459353]=note: print w/replies, xml ) Need Help??

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  1. or download this
      my %a1;
  undef @a1{@a1};
  my @in_both = grep { exists $a1{$_} } @a2;
  2. or download this
      my (%a1, %a2);
  undef @a1{@a1};
  undef @a2{@a2};
  my @in_both = grep { exists $a1{$_} } keys %a2;

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