Merge pull request #10093 from arnesom/branch-for-challenge-269

Arne Sommer

6 files changed, 147 insertions, 0 deletions

diff --git a/challenge-269/arne-sommer/blog.txt b/challenge-269/arne-sommer/blog.txt
new file mode 100644
index 0000000000..8359414368
--- /dev/null
+++ b/challenge-269/arne-sommer/blog.txt
@@ -0,0 +1 @@
+https://raku-musings.com/distribute-or.html
diff --git a/challenge-269/arne-sommer/raku/bitwise-or b/challenge-269/arne-sommer/raku/bitwise-or
new file mode 100755
index 0000000000..727da39fc6
--- /dev/null
+++ b/challenge-269/arne-sommer/raku/bitwise-or
@@ -0,0 +1,20 @@
+#! /usr/bin/env raku
+
+unit sub MAIN (*@ints where @ints.elems > 1 && all(@ints) ~~ UInt && all(@ints) > 0, :v(:$verbose));
+
+for @ints.combinations(2..*) -> @combination
+{
+  my $or       = [+|] @combination;
+  my $binary   = $or.fmt('%b');
+  my $trailing = so ($binary ~~ /.0$/);
+
+  say ": Combination: { @combination.join(",") } -> or: $or -> binary: $binary | trailing 0: $trailing" if $verbose;
+
+  if $trailing
+  {
+    say True;
+    exit;
+  }
+}
+
+say False;
diff --git a/challenge-269/arne-sommer/raku/bitwise-or-all b/challenge-269/arne-sommer/raku/bitwise-or-all
new file mode 100755
index 0000000000..e3513fdee0
--- /dev/null
+++ b/challenge-269/arne-sommer/raku/bitwise-or-all
@@ -0,0 +1,22 @@
+#! /usr/bin/env raku
+
+unit sub MAIN (*@ints where @ints.elems > 1 && all(@ints) ~~ UInt && all(@ints) > 0, :a(:$all) = False, :v(:$verbose) = $all);
+
+my $found = False;
+
+for @ints.combinations(2..*) -> @combination
+{
+  my $or       = [+|] @combination;
+  my $binary   = $or.fmt('%b');
+  my $trailing = so ($binary ~~ /.0$/);
+
+  say ": Combination: { @combination.join(",") } -> or: $or -> binary: $binary | trailing 0: $trailing" if $verbose;
+
+  if $trailing
+  {
+    $found = True;
+    last unless $all;
+  }
+}
+
+say $found;
\ No newline at end of file
diff --git a/challenge-269/arne-sommer/raku/ch-1.raku b/challenge-269/arne-sommer/raku/ch-1.raku
new file mode 100755
index 0000000000..727da39fc6
--- /dev/null
+++ b/challenge-269/arne-sommer/raku/ch-1.raku
@@ -0,0 +1,20 @@
+#! /usr/bin/env raku
+
+unit sub MAIN (*@ints where @ints.elems > 1 && all(@ints) ~~ UInt && all(@ints) > 0, :v(:$verbose));
+
+for @ints.combinations(2..*) -> @combination
+{
+  my $or       = [+|] @combination;
+  my $binary   = $or.fmt('%b');
+  my $trailing = so ($binary ~~ /.0$/);
+
+  say ": Combination: { @combination.join(",") } -> or: $or -> binary: $binary | trailing 0: $trailing" if $verbose;
+
+  if $trailing
+  {
+    say True;
+    exit;
+  }
+}
+
+say False;
diff --git a/challenge-269/arne-sommer/raku/ch-2.raku b/challenge-269/arne-sommer/raku/ch-2.raku
new file mode 100755
index 0000000000..7b20457bb4
--- /dev/null
+++ b/challenge-269/arne-sommer/raku/ch-2.raku
@@ -0,0 +1,42 @@
+#! /usr/bin/env raku
+
+unit sub MAIN (*@ints where @ints.elems > 1 && @ints.unique.elems == @ints.elems && all(@ints) ~~ Int, :v(:$verbose));
+
+my @arr1 = @ints.shift.Int;
+my @arr2 = @ints.shift.Int;
+
+if $verbose
+{
+  say ": 1st operation. Add { @arr1[*-1] } to @arr1 = ({ @arr1.join(", ") })";
+  say ": 2nd operation. Add { @arr2[*-1] } to @arr2 = ({ @arr2.join(", ") })";
+}
+
+my $counter = 3;
+
+while @ints.elems
+{
+  my $int   = @ints.shift.Int;
+  my $last1 =  @arr1.tail;
+  my $last2 =  @arr2[*-1];
+
+  if $last1 > $last2
+  {
+    @arr1.push: $int;
+    say ": {$counter++}rd operation. Last of @ints1 > last of @ints2: Add $int to @arr1 = ({ @arr1.join(", ") })" if $verbose;
+  }
+  else
+  {
+    @arr2.push: $int;
+    say ": {$counter++}rd operation. Last of @ints2 <= last of @ints2: Add $int to @arr2 = ({ @arr2.join(", ") })" if $verbose;
+  }
+}
+
+if $verbose
+{
+  say ": @arr1 = ({ @arr1.join(", ") })"; 
+  say ": @arr2 = ({ @arr2.join(", ") })"; 
+}
+
+my @result = (@arr1, @arr2).flat;
+
+say "({ @result.join(", ") })";
diff --git a/challenge-269/arne-sommer/raku/distribute-elements b/challenge-269/arne-sommer/raku/distribute-elements
new file mode 100755
index 0000000000..7b20457bb4
--- /dev/null
+++ b/challenge-269/arne-sommer/raku/distribute-elements
@@ -0,0 +1,42 @@
+#! /usr/bin/env raku
+
+unit sub MAIN (*@ints where @ints.elems > 1 && @ints.unique.elems == @ints.elems && all(@ints) ~~ Int, :v(:$verbose));
+
+my @arr1 = @ints.shift.Int;
+my @arr2 = @ints.shift.Int;
+
+if $verbose
+{
+  say ": 1st operation. Add { @arr1[*-1] } to @arr1 = ({ @arr1.join(", ") })";
+  say ": 2nd operation. Add { @arr2[*-1] } to @arr2 = ({ @arr2.join(", ") })";
+}
+
+my $counter = 3;
+
+while @ints.elems
+{
+  my $int   = @ints.shift.Int;
+  my $last1 =  @arr1.tail;
+  my $last2 =  @arr2[*-1];
+
+  if $last1 > $last2
+  {
+    @arr1.push: $int;
+    say ": {$counter++}rd operation. Last of @ints1 > last of @ints2: Add $int to @arr1 = ({ @arr1.join(", ") })" if $verbose;
+  }
+  else
+  {
+    @arr2.push: $int;
+    say ": {$counter++}rd operation. Last of @ints2 <= last of @ints2: Add $int to @arr2 = ({ @arr2.join(", ") })" if $verbose;
+  }
+}
+
+if $verbose
+{
+  say ": @arr1 = ({ @arr1.join(", ") })"; 
+  say ": @arr2 = ({ @arr2.join(", ") })"; 
+}
+
+my @result = (@arr1, @arr2).flat;
+
+say "({ @result.join(", ") })";