Data commit

Task/Roman-numerals-Encode/Perl/roman-numerals-encode-1.pl

@@ -0,0 +1,14 @@
+my @symbols = ( [1000, 'M'], [900, 'CM'], [500, 'D'], [400, 'CD'], [100, 'C'], [90, 'XC'], [50, 'L'], [40, 'XL'], [10, 'X'], [9, 'IX'], [5, 'V'], [4, 'IV'], [1, 'I']  );
+
+sub roman {
+  my($n, $r) = (shift, '');
+  ($r, $n) = ('-', -$n) if $n < 0;  # Optional handling of negative input
+  foreach my $s (@symbols) {
+    my($arabic, $roman) = @$s;
+    ($r, $n) = ($r .= $roman x int($n/$arabic),  $n % $arabic)
+       if $n >= $arabic;
+  }
+  $r;
+}
+
+say roman($_) for 1..2012;

Task/Roman-numerals-Encode/Perl/roman-numerals-encode-2.pl

@@ -0,0 +1,2 @@
+use Math::Roman qw/roman/;
+say roman($_) for 1..2012'

Task/Roman-numerals-Encode/Perl/roman-numerals-encode-3.pl

@@ -0,0 +1,23 @@
+use List::MoreUtils qw( natatime );
+
+my %symbols = (
+    1 => "I", 5 => "V", 10 => "X", 50 => "L", 100 => "C",
+    500 => "D", 1_000 => "M"
+);
+
+my @subtractors = (
+        1_000, 100,  500, 100,  100, 10,  50, 10,  10, 1,  5, 1,  1, 0
+);
+
+sub roman {
+    return '' if 0 == (my $n = shift);
+    my $iter = natatime 2, @subtractors;
+    while( my ($cut, $minus) = $iter->() ) {
+        $n >= $cut
+            and return $symbols{$cut} . roman($n - $cut);
+        $n >= $cut - $minus
+            and return $symbols{$minus} . roman($n + $minus);
+    }
+};
+
+print roman($_) . "\n" for 1..2012;