From 10c36422e9166389bfb25e96f27922e0accbecb4 Mon Sep 17 00:00:00 2001
From: Kang-min Liu <gugod@gugod.org>
Date: Mon, 28 Sep 2020 23:59:32 +0900
Subject: solutions of PWC 080 from gugod in Perl, Raku, and Kotlin.

---
 challenge-080/gugod/kotlin/ch-1.kts | 14 ++++++++++++++
 challenge-080/gugod/kotlin/ch-2.kts | 12 ++++++++++++
 challenge-080/gugod/perl/ch-1.pl    | 20 ++++++++++++++++++++
 challenge-080/gugod/perl/ch-2.pl    | 15 +++++++++++++++
 challenge-080/gugod/raku/ch-1.raku  |  9 +++++++++
 challenge-080/gugod/raku/ch-2.raku  | 11 +++++++++++
 6 files changed, 81 insertions(+)
 create mode 100755 challenge-080/gugod/kotlin/ch-1.kts
 create mode 100644 challenge-080/gugod/kotlin/ch-2.kts
 create mode 100644 challenge-080/gugod/perl/ch-1.pl
 create mode 100644 challenge-080/gugod/perl/ch-2.pl
 create mode 100644 challenge-080/gugod/raku/ch-1.raku
 create mode 100644 challenge-080/gugod/raku/ch-2.raku

diff --git a/challenge-080/gugod/kotlin/ch-1.kts b/challenge-080/gugod/kotlin/ch-1.kts
new file mode 100755
index 0000000000..3d645acfb2
--- /dev/null
+++ b/challenge-080/gugod/kotlin/ch-1.kts
@@ -0,0 +1,14 @@
+#!/usr/bin/env kotlinc -script
+
+// Usage:
+//   kotlinc -script ./challenge-080/gugod/kotlin/ch-1.kts -- 1 2 18 4 5
+//   3
+//
+//   ./ch-1.kts -- 7 1 2 -3 3 4 50 '-1' '-2'
+//   5
+
+
+val N = args.map({ it.toIntOrNull() }).filter({ it != null });
+val seen = N.toSet();
+val x = (1..N.size+1).first({ ! seen.contains(it) });
+println(x);
diff --git a/challenge-080/gugod/kotlin/ch-2.kts b/challenge-080/gugod/kotlin/ch-2.kts
new file mode 100644
index 0000000000..7c5af14b2b
--- /dev/null
+++ b/challenge-080/gugod/kotlin/ch-2.kts
@@ -0,0 +1,12 @@
+#!/usr/bin/env kotlinc -script
+
+// Usage:
+//
+//     # kotlinc -script ./challenge-080/gugod/kotlin/ch-2.kts 1 4 3 2
+//     7
+
+val N = args.map({ it.toIntOrNull() }).filter({ it != null });
+
+val extra = (1..N.lastIndex).filter({ N[it] != N[it-1] }).size;
+
+println( N.size + extra );
diff --git a/challenge-080/gugod/perl/ch-1.pl b/challenge-080/gugod/perl/ch-1.pl
new file mode 100644
index 0000000000..fcc13cd0c2
--- /dev/null
+++ b/challenge-080/gugod/perl/ch-1.pl
@@ -0,0 +1,20 @@
+#!/usr/bin/env perl
+use v5.28;
+
+=head1 Usage
+
+    # perl ./challenge-080/gugod/perl/ch-1.pl 5 2 -2 0
+    1
+
+    # perl ./challenge-080/gugod/perl/ch-1.pl 5 2 -2 0 1
+    3
+
+=cut
+
+my @N = grep { $_ > 0 } map { int($_) } @ARGV;
+
+my %seen = map { $_ => 1 } @N;
+my $i = 1;
+$i++ while $seen{$i};
+
+say $i;
diff --git a/challenge-080/gugod/perl/ch-2.pl b/challenge-080/gugod/perl/ch-2.pl
new file mode 100644
index 0000000000..61f0e90073
--- /dev/null
+++ b/challenge-080/gugod/perl/ch-2.pl
@@ -0,0 +1,15 @@
+#!/usr/bin/env perl
+use v5.28;
+
+=head1 Usage
+
+    # perl ./challenge-080/gugod/perl/ch-2.pl 1 4 3 2
+    7
+
+=cut
+
+my @N = grep { $_ > 0 } map { int($_) } @ARGV;
+
+my @extra = grep { @N[$_] != @N[$_-1] } (1..@N-1);
+
+say @N + @extra;
diff --git a/challenge-080/gugod/raku/ch-1.raku b/challenge-080/gugod/raku/ch-1.raku
new file mode 100644
index 0000000000..598aaca113
--- /dev/null
+++ b/challenge-080/gugod/raku/ch-1.raku
@@ -0,0 +1,9 @@
+#!/usr/bin/env raku
+
+# Usage:
+#   raku ./challenge-080/gugod/raku/ch-1.raku 1 2 18 4 5
+#   3
+
+my $N = @*ARGS.map({ .Int }).Set();
+
+(1..*).first(-> $n { ! $N{$n} }).say;
diff --git a/challenge-080/gugod/raku/ch-2.raku b/challenge-080/gugod/raku/ch-2.raku
new file mode 100644
index 0000000000..5afbd6afd1
--- /dev/null
+++ b/challenge-080/gugod/raku/ch-2.raku
@@ -0,0 +1,11 @@
+#!/usr/bin/env raku
+
+# Usage:
+#   raku ./challenge-080/gugod/raku/ch-2.raku 1 4 3 2
+#   7
+
+my @N = @*ARGS.map({ .Int });
+
+my $extra = (1..@N.end).grep(-> $i { @N[$i] != @N[$i-1] }).elems;
+
+say @N.elems + $extra;
-- 
cgit