Part of the problem I am stuck in is to use an array element as a hashkey, I managed to create this array, however, the elements in the array are repeating, I want to modify the code such that for every element in @continents there is only one single occurrence within the array itself (purging out repeating elements).

My plan is to use an array element as a key in a hash and this hash would hold an anonymous array member corresponding to a country (Would work on that afterwards). 

#!/usr/local/bin/perl
use strict;

my @continents;
my($key, $value);
while(<DATA>){
        chomp;
        my($key, $val)=split /:/;
        push @continents,$key;
        }
print "@continents\n";


__DATA__
Europe:Germany
Europe:France
Asia:India
Europe:Italy
Asia:Japan
Asia:Indonesia

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In reply to Deleting repeating array elements by biohisham

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