5 files changed, 61 insertions, 0 deletions
diff --git a/challenge-258/arne-sommer/blog.txt b/challenge-258/arne-sommer/blog.txt
new file mode 100644
index 0000000000..2d326e8d6e
--- /dev/null
+++ b/challenge-258/arne-sommer/blog.txt
@@ -0,0 +1 @@
+https://raku-musings.com/even-sum.html
diff --git a/challenge-258/arne-sommer/raku/cedn b/challenge-258/arne-sommer/raku/cedn
new file mode 100644
index 0000000000..f0a6becdb2
--- /dev/null
+++ b/challenge-258/arne-sommer/raku/cedn
@@ -0,0 +1,7 @@
+#! /usr/bin/env raku
+
+subset PosInt of Int where * >= 1;
+
+unit sub MAIN (*@ints where @ints.elems > 0 && all(@ints) ~~ PosInt);
+
+say @ints.grep( *.chars %% 2 ).elems;
diff --git a/challenge-258/arne-sommer/raku/ch-1.raku b/challenge-258/arne-sommer/raku/ch-1.raku
new file mode 100644
index 0000000000..f0a6becdb2
--- /dev/null
+++ b/challenge-258/arne-sommer/raku/ch-1.raku
@@ -0,0 +1,7 @@
+#! /usr/bin/env raku
+
+subset PosInt of Int where * >= 1;
+
+unit sub MAIN (*@ints where @ints.elems > 0 && all(@ints) ~~ PosInt);
+
+say @ints.grep( *.chars %% 2 ).elems;
diff --git a/challenge-258/arne-sommer/raku/ch-2.raku b/challenge-258/arne-sommer/raku/ch-2.raku
new file mode 100644
index 0000000000..28d7b62739
--- /dev/null
+++ b/challenge-258/arne-sommer/raku/ch-2.raku
@@ -0,0 +1,23 @@
+#! /usr/bin/env raku
+
+unit sub MAIN (Int $k, *@ints where @ints.elems > 0 && all(@ints) ~~ Int, :v(:$verbose));
+
+my $output = 0;
+
+for ^@ints.elems -> $index
+{
+  my $binary = $index.fmt('%b');
+  my $sum    = $binary.comb.sum;
+
+  if $sum == $k
+  {
+    $output += @ints[$index];
+    say ":Index $index binary $binary -> $sum match - adding @ints[$index] -> $output" if $verbose;
+  }
+  elsif $verbose
+  {
+    say ":Index $index binary $binary -> $sum";
+  }
+}
+
+say $output;
diff --git a/challenge-258/arne-sommer/raku/sum-of-values b/challenge-258/arne-sommer/raku/sum-of-values
new file mode 100644
index 0000000000..28d7b62739
--- /dev/null
+++ b/challenge-258/arne-sommer/raku/sum-of-values
@@ -0,0 +1,23 @@
+#! /usr/bin/env raku
+
+unit sub MAIN (Int $k, *@ints where @ints.elems > 0 && all(@ints) ~~ Int, :v(:$verbose));
+
+my $output = 0;
+
+for ^@ints.elems -> $index
+{
+  my $binary = $index.fmt('%b');
+  my $sum    = $binary.comb.sum;
+
+  if $sum == $k
+  {
+    $output += @ints[$index];
+    say ":Index $index binary $binary -> $sum match - adding @ints[$index] -> $output" if $verbose;
+  }
+  elsif $verbose
+  {
+    say ":Index $index binary $binary -> $sum";
+  }
+}
+
+say $output;