Task 1 plperl done

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diff --git a/challenge-192/luca-ferrari/postgresql/ch-1.plperl b/challenge-192/luca-ferrari/postgresql/ch-1.plperl
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+++ b/challenge-192/luca-ferrari/postgresql/ch-1.plperl
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+-- Perl Weekly Challenge 192
+-- Task 1
+
+CREATE SCHEMA IF NOT EXISTS pwc192;
+
+CREATE OR REPLACE FUNCTION
+pwc192.task1_plperl( int)
+RETURNS int
+AS $CODE$
+  my ($n) = @_;
+
+
+  my @bits = map { $_ == 0 ? 1 : 0 } split( '', sprintf( "%b", $n ) );
+  my $binary = join( '', @bits );
+  my $flipped = eval( "0b$binary" );
+  return $flipped;
+$CODE$
+LANGUAGE plperl;