26 lines
585 B
Perl
26 lines
585 B
Perl
use List::Util qw(sum);
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use POSIX qw(strtol);
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sub zip :prototype(&\@\@) {
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my $f = shift;
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my @a = @{shift()};
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my @b = @{shift()};
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my @result;
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push(@result, $f->(shift @a, shift @b)) while @a && @b;
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return @result;
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}
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my @weights = (1, 3, 1, 7, 3, 9);
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sub sedan :prototype($) {
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my $s = shift;
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$s =~ /[AEIOU]/ and die "No vowels";
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my @vs = map {(strtol $_, 36)[0]} split //, $s;
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my $checksum = sum (zip {$_[0] * $_[1]} @vs, @weights);
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my $check_digit = (10 - $checksum % 10) % 10;
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return $s . $check_digit;
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}
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while (<>) {
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chomp;
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print sedol($_), "\n";
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}
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