Instead of 
my @array = map {int rand 1e6} 1..400000;
...
$lookup_table{$_}++ for @array;

[download]
one should use something like 
my %lookup_table = map {int rand 1e6 => 1} 1..400000;

[download]
in order to save memory requirements. There is no need to have the list of numbers both in an array and in the hash.

In reply to Re^2: searching through data by evaluator
in thread searching through data by baxy77bax

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