draft

1 files changed, 37 insertions, 0 deletions

diff --git a/challenge-010/pavel-jurca/ch-1.pl b/challenge-010/pavel-jurca/ch-1.pl
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+++ b/challenge-010/pavel-jurca/ch-1.pl
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+use 5.010.1;
+
+use strict;
+use warnings;
+
+my %roman = reverse qw/
+  I 1
+  V 5
+  X 10
+  L 50
+  C 100
+  D 500
+  M 1000
+/;
+
+# === MAIN ===
+say encode(2019);
+# ============
+
+sub encode {
+  # "additive" notation
+  # https://en.wikipedia.org/wiki/Roman_numerals#Use_of_additive_notation
+  
+  my $integer = shift;
+  my @r;
+
+  ROMAN:
+  for ( sort { $b <=> $a } keys %roman ) {
+    push @r, $roman{$_} x int $integer / $_;
+
+    $integer %= $_;
+  }
+
+  join '', @r;
+}
+
+sub decode {}