my %users = map { $_->[0], $_->[1,-1] } @$ar_ref_2;
my @answer = map { [@$_, $users{$$_[1]}  ] } @$ar_ref_1;
[download]

PerlMonks lovingly hand-crafted by Tim Vroom.
PerlMonks went on a couple dates, and then decided to shack up with The Perl Foundation.
Speedy Servers and Bandwidth Generously Provided by pair Networks
Built with the Perl programming language.