Looks like exactly what I want but does not work. I got rid of syntax error by substituting ~~ with == but the results is wrong. 
@x = qw(1 4);
@y = qw(1 2 3);

push @z, (grep { $_ == \@y } @x) ? 'y' : 'n';

print $z[0];
print $z[1];

[download]

$z[0] gives me now and $z1 is uninitilised.

In reply to Re^2: Failed array attemp by Anonymous Monk
in thread Failed array attemp by Anonymous Monk

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