5 files changed, 193 insertions, 0 deletions
diff --git a/challenge-274/arne-sommer/blog.txt b/challenge-274/arne-sommer/blog.txt
new file mode 100644
index 0000000000..0ca62becb1
--- /dev/null
+++ b/challenge-274/arne-sommer/blog.txt
@@ -0,0 +1 @@
+https://raku-musings.com/goat-bus.html
diff --git a/challenge-274/arne-sommer/raku/bus-route b/challenge-274/arne-sommer/raku/bus-route
new file mode 100755
index 0000000000..10e7b013d7
--- /dev/null
+++ b/challenge-274/arne-sommer/raku/bus-route
@@ -0,0 +1,80 @@
+#! /usr/bin/env raku
+
+unit sub MAIN (Str $routestr = "12 11 41 | 15 5 35", :v(:$verbose)); 
+
+my @routes = $routestr.split("|")>>.words>>.Numeric;
+
+die "All the routes must have three integers each" unless all(@routes>>.elems) == 3;
+die "Non-negative integers only" unless all(@routes[*;*]) ~~ UInt;
+
+my @departures;
+
+for @routes -> @route
+{
+  state $rid   = 0; $rid++;
+  my $interval = @route[0];
+  my $offset   = @route[1];
+  my $duration = @route[2];
+
+  say ": Route: $rid Interval: $interval Offset: $offset Duration: $duration" if $verbose;
+
+  die "Route $rid: Interval does not comply with 60 min rule" unless 60 %% $interval;
+  die "Route $rid: Interval must be positive" unless $interval > 0;
+
+  my $min = $offset;
+
+  while $min < 60
+  {
+    @departures.push: { dept => $min, route => $rid, arrival => $min + $duration };
+
+    $min += $interval;
+  }
+}
+
+my @sorted = @departures.sort({ $^a<dept> <=> $^b<dept> || $^a<arrival> <=> $^b<arrival> || $^a<route> <=> $^b<route> });
+
+if $verbose
+{
+  for @sorted -> %dep
+  {
+    say ": Departure at { %dep<dept>.fmt('%02d') }: route %dep<route> arrive at %dep<arrival>";
+  }
+}
+
+exit if $verbose && $verbose eq '2';
+
+my @skip;
+
+for 0 .. 59 -> $min
+{
+  my @todo = @sorted.grep( *<dept> >= $min );
+
+  unless @todo.elems
+  {
+    if @skip && @skip[0] == 0
+    {
+      @skip.push: $min;
+      say ": Min:$min (no more departures this hour, and we skipped the first one this hour) * skip" if $verbose;
+    }
+    elsif $verbose
+    {
+      say ": Min:$min (no more departures this hour, and we took the first one this hour) - first";
+    }
+    next;
+  }
+
+  my %first   = @todo.shift;
+  my %wait_to = %first;
+
+  for @todo -> %dept
+  {
+    %wait_to = %dept if %dept<arrival> < %wait_to<arrival>;
+  }
+
+  my $ok = %first eqv %wait_to;
+
+  @skip.push: $min if !$ok;
+  say ": Min:{ $min.fmt('%02d') }: { $min == %wait_to<dept> ?? "" !! "wait to %wait_to<dept>" } take route %wait_to<route> and arrive at %wait_to<arrival> { $ok ?? "- first" !! "* skip" }" if $verbose;
+}
+
+say "[{ @skip.join(", ") }]";
diff --git a/challenge-274/arne-sommer/raku/ch-1.raku b/challenge-274/arne-sommer/raku/ch-1.raku
new file mode 100755
index 0000000000..101b68ecc3
--- /dev/null
+++ b/challenge-274/arne-sommer/raku/ch-1.raku
@@ -0,0 +1,16 @@
+#! /usr/bin/env raku
+
+unit sub MAIN ($sentence where $sentence.chars > 0);
+
+say $sentence.words.map( *.&goatify-word ).join(" ");
+
+sub goatify-word ($word is copy)
+{
+  state $add = 2;
+
+  $word = $word.substr(1) ~ $word.substr(0,1) if $word !~~ /^<[aeiou]>/;
+
+  $word ~= "m" ~ "a" x $add++;
+
+  return $word;
+}
diff --git a/challenge-274/arne-sommer/raku/ch-2.raku b/challenge-274/arne-sommer/raku/ch-2.raku
new file mode 100755
index 0000000000..10e7b013d7
--- /dev/null
+++ b/challenge-274/arne-sommer/raku/ch-2.raku
@@ -0,0 +1,80 @@
+#! /usr/bin/env raku
+
+unit sub MAIN (Str $routestr = "12 11 41 | 15 5 35", :v(:$verbose)); 
+
+my @routes = $routestr.split("|")>>.words>>.Numeric;
+
+die "All the routes must have three integers each" unless all(@routes>>.elems) == 3;
+die "Non-negative integers only" unless all(@routes[*;*]) ~~ UInt;
+
+my @departures;
+
+for @routes -> @route
+{
+  state $rid   = 0; $rid++;
+  my $interval = @route[0];
+  my $offset   = @route[1];
+  my $duration = @route[2];
+
+  say ": Route: $rid Interval: $interval Offset: $offset Duration: $duration" if $verbose;
+
+  die "Route $rid: Interval does not comply with 60 min rule" unless 60 %% $interval;
+  die "Route $rid: Interval must be positive" unless $interval > 0;
+
+  my $min = $offset;
+
+  while $min < 60
+  {
+    @departures.push: { dept => $min, route => $rid, arrival => $min + $duration };
+
+    $min += $interval;
+  }
+}
+
+my @sorted = @departures.sort({ $^a<dept> <=> $^b<dept> || $^a<arrival> <=> $^b<arrival> || $^a<route> <=> $^b<route> });
+
+if $verbose
+{
+  for @sorted -> %dep
+  {
+    say ": Departure at { %dep<dept>.fmt('%02d') }: route %dep<route> arrive at %dep<arrival>";
+  }
+}
+
+exit if $verbose && $verbose eq '2';
+
+my @skip;
+
+for 0 .. 59 -> $min
+{
+  my @todo = @sorted.grep( *<dept> >= $min );
+
+  unless @todo.elems
+  {
+    if @skip && @skip[0] == 0
+    {
+      @skip.push: $min;
+      say ": Min:$min (no more departures this hour, and we skipped the first one this hour) * skip" if $verbose;
+    }
+    elsif $verbose
+    {
+      say ": Min:$min (no more departures this hour, and we took the first one this hour) - first";
+    }
+    next;
+  }
+
+  my %first   = @todo.shift;
+  my %wait_to = %first;
+
+  for @todo -> %dept
+  {
+    %wait_to = %dept if %dept<arrival> < %wait_to<arrival>;
+  }
+
+  my $ok = %first eqv %wait_to;
+
+  @skip.push: $min if !$ok;
+  say ": Min:{ $min.fmt('%02d') }: { $min == %wait_to<dept> ?? "" !! "wait to %wait_to<dept>" } take route %wait_to<route> and arrive at %wait_to<arrival> { $ok ?? "- first" !! "* skip" }" if $verbose;
+}
+
+say "[{ @skip.join(", ") }]";
diff --git a/challenge-274/arne-sommer/raku/goat-latin b/challenge-274/arne-sommer/raku/goat-latin
new file mode 100755
index 0000000000..101b68ecc3
--- /dev/null
+++ b/challenge-274/arne-sommer/raku/goat-latin
@@ -0,0 +1,16 @@
+#! /usr/bin/env raku
+
+unit sub MAIN ($sentence where $sentence.chars > 0);
+
+say $sentence.words.map( *.&goatify-word ).join(" ");
+
+sub goatify-word ($word is copy)
+{
+  state $add = 2;
+
+  $word = $word.substr(1) ~ $word.substr(0,1) if $word !~~ /^<[aeiou]>/;
+
+  $word ~= "m" ~ "a" x $add++;
+
+  return $word;
+}