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( [id://3333]=superdoc: print w/replies, xml ) Need Help??
my @ch = (' ', '0'..'9', 'A'..'Z'); my $base = @ch; my $num = 2_565_726_408; my $s = ''; while ($num > 0) { $s = $ch[$num % $base] . $s; $num = int($num / $base); } print $s; # ZZZZZZ

(for small numbers you could space-pad the string on the left, if you like)

And the reciprocal procedure (string to number) could be

my @val; $val[ ord($ch[$_]) ] = $_ for 0..$#ch; my $s = ... my $num = 0; my $m = 1; for (reverse split //, $s) { $num += $m * $val[ ord($_) ]; $m *= $base; } print $num;

In reply to Re: Fast - Compact That String by Eliya
in thread Fast - Compact That String by Limbic~Region

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