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( #3333=superdoc: print w/replies, xml ) Need Help??

...Update: I won't. It's not needed in the solution. You should use the documented API, i.e. Parent and get_leaves.

Good luck :)

#!/usr/bin/perl -- use strict; use warnings; use Data::Dump qw/ dd /; dd( deef( [ qw/ Cobra /] , [qw/ Fox /] ) ); dd( deef( [ qw/ Dog Fox Wolf /] , [qw/ Fox /] ) ); sub deef { my( $got, $want) = @_; my %have; undef @have{ @$got }; my @add = grep { !exists $have{$_} } @$want; undef %have; undef @have{ @$want }; my @del = grep { !exists $have{$_} } @$got; [deeef( @add )], [deeef( @del )]; } sub deeef { my( @animals ) = @_; my %catcatdog = ( Mammal => { Bovine => ["Cow", "Bison"], Canine => ["Dog", "Fox", "Wolf"], Equine => ["Horse", "Zebra", "Pony"], }, Reptile => { Bird => ["Pigeon", "Canary", "Owl"], Lizard => ["Salamander", "Chameleon"], Snake => ["Python", "Cobra"], }, ); my %dogcatcat; for my $cat ( keys %catcatdog ){ for my $catcat ( keys %{ $catcatdog{ $cat } } ){ for my $dog( @{ $catcatdog{$cat}{$catcat} } ){ push @{ $dogcatcat{$dog} }, $catcat, $cat, ; } } } return map {; [ $_, @{ $dogcatcat{$_} } ] } @animals; } __END__ ( [["Fox", "Canine", "Mammal"]], [["Cobra", "Snake", "Reptile"]], ) ( [], [["Dog", "Canine", "Mammal"], ["Wolf", "Canine", "Mammal"]], )

In reply to Re^7: Tree Structure Challenge by Anonymous Monk
in thread Tree Structure Challenge by choroba

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