I don't think it really matters if the value for a particular number is more than one so the exists test is perhaps overkill. The keys count is what matters.

$ perl -Mstrict -Mwarnings -E '
my %numbers;
$numbers{ int( rand 20 ) + 1 } ++
   while keys %numbers < 10;
say for sort { $a <=> $b } keys %numbers;'
4
7
8
9
11
13
14
15
17
18
$

[download]

I hope this is of interest.

Cheers,

JohnGG

In reply to Re^2: Perl - Unique Numbers by johngg
in thread Perl - Unique Numbers by deelinux

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