From fa7b3b9dd3943a58a10d4ad915f8d26da0bcba82 Mon Sep 17 00:00:00 2001
From: Arne Sommer <arne@bbop.org>
Date: Wed, 3 Sep 2025 22:01:43 +0200
Subject: week 337 Arne Sommer

---
 challenge-337/arne-sommer/blog.txt                 |  1 +
 challenge-337/arne-sommer/raku/ch-1.raku           |  6 +++++
 challenge-337/arne-sommer/raku/ch-2.raku           | 26 ++++++++++++++++++++++
 challenge-337/arne-sommer/raku/odd-matrix          | 26 ++++++++++++++++++++++
 .../arne-sommer/raku/smaller-than-current          |  6 +++++
 5 files changed, 65 insertions(+)
 create mode 100644 challenge-337/arne-sommer/blog.txt
 create mode 100755 challenge-337/arne-sommer/raku/ch-1.raku
 create mode 100755 challenge-337/arne-sommer/raku/ch-2.raku
 create mode 100755 challenge-337/arne-sommer/raku/odd-matrix
 create mode 100755 challenge-337/arne-sommer/raku/smaller-than-current

diff --git a/challenge-337/arne-sommer/blog.txt b/challenge-337/arne-sommer/blog.txt
new file mode 100644
index 0000000000..9286424601
--- /dev/null
+++ b/challenge-337/arne-sommer/blog.txt
@@ -0,0 +1 @@
+https://raku-musings.com/oddly-current.html
\ No newline at end of file
diff --git a/challenge-337/arne-sommer/raku/ch-1.raku b/challenge-337/arne-sommer/raku/ch-1.raku
new file mode 100755
index 0000000000..38cc36f59f
--- /dev/null
+++ b/challenge-337/arne-sommer/raku/ch-1.raku
@@ -0,0 +1,6 @@
+#! /usr/bin/env raku
+
+unit sub MAIN (*@num1 where @num1.elems > 0 && all(@num1) ~~ Numeric);
+
+say @num1.map({ @num1.grep( * <= $_ ).elems -1 });
+
diff --git a/challenge-337/arne-sommer/raku/ch-2.raku b/challenge-337/arne-sommer/raku/ch-2.raku
new file mode 100755
index 0000000000..e64648c2f2
--- /dev/null
+++ b/challenge-337/arne-sommer/raku/ch-2.raku
@@ -0,0 +1,26 @@
+#! /usr/bin/env raku
+
+unit sub MAIN (*@locations where @locations.elems > 0
+                 && all(@locations) ~~ /^\d+\,\d+$/,
+               UInt :r(:$row) where $row > 0,
+	       UInt :c(:$col) where $col > 0,
+               :v(:$verbose));
+
+my @matrix = [0 xx $col] xx $row;
+
+say ": Initial matrix: { @matrix.raku }" if $verbose;
+
+for @locations -> $location
+{
+  my ($r, $c) = $location.split(',');
+
+  die "Row $r is out of scope" if $r > $row;
+  die "Col $c is out of scope" if $c > $col;
+
+  @matrix[$r][$_]++ for ^$col;
+  @matrix[$_][$c]++ for ^$row;
+
+  say ": Row: $r, Col: $c -> { @matrix.raku }" if $verbose;
+}
+
+say @matrix[*;*].grep( ! ( * %% 2 ) ).elems;
diff --git a/challenge-337/arne-sommer/raku/odd-matrix b/challenge-337/arne-sommer/raku/odd-matrix
new file mode 100755
index 0000000000..e64648c2f2
--- /dev/null
+++ b/challenge-337/arne-sommer/raku/odd-matrix
@@ -0,0 +1,26 @@
+#! /usr/bin/env raku
+
+unit sub MAIN (*@locations where @locations.elems > 0
+                 && all(@locations) ~~ /^\d+\,\d+$/,
+               UInt :r(:$row) where $row > 0,
+	       UInt :c(:$col) where $col > 0,
+               :v(:$verbose));
+
+my @matrix = [0 xx $col] xx $row;
+
+say ": Initial matrix: { @matrix.raku }" if $verbose;
+
+for @locations -> $location
+{
+  my ($r, $c) = $location.split(',');
+
+  die "Row $r is out of scope" if $r > $row;
+  die "Col $c is out of scope" if $c > $col;
+
+  @matrix[$r][$_]++ for ^$col;
+  @matrix[$_][$c]++ for ^$row;
+
+  say ": Row: $r, Col: $c -> { @matrix.raku }" if $verbose;
+}
+
+say @matrix[*;*].grep( ! ( * %% 2 ) ).elems;
diff --git a/challenge-337/arne-sommer/raku/smaller-than-current b/challenge-337/arne-sommer/raku/smaller-than-current
new file mode 100755
index 0000000000..38cc36f59f
--- /dev/null
+++ b/challenge-337/arne-sommer/raku/smaller-than-current
@@ -0,0 +1,6 @@
+#! /usr/bin/env raku
+
+unit sub MAIN (*@num1 where @num1.elems > 0 && all(@num1) ~~ Numeric);
+
+say @num1.map({ @num1.grep( * <= $_ ).elems -1 });
+
-- 
cgit