note philiprbrenan <p>You do not need the for becuase grep loops over the array you give it. Please change:</p> <code> for (@positions) {@positions = grep $_->[1] =~ /ac/i, @positions;} </code><p>to:</p> <code> @positions = grep $_->[1] =~ /ac/i, @positions; </code> 991184 991208