Arne Sommer

10 files changed, 248 insertions, 0 deletions

diff --git a/challenge-100/arne-sommer/blog.txt b/challenge-100/arne-sommer/blog.txt
new file mode 100644
index 0000000000..a8430e6450
--- /dev/null
+++ b/challenge-100/arne-sommer/blog.txt
@@ -0,0 +1 @@
+https://raku-musings.com/fun-sum-time.html
diff --git a/challenge-100/arne-sommer/perl/ch-1.pl b/challenge-100/arne-sommer/perl/ch-1.pl
new file mode 100755
index 0000000000..0b73acc9e1
--- /dev/null
+++ b/challenge-100/arne-sommer/perl/ch-1.pl
@@ -0,0 +1,15 @@
+#! /usr/bin/env perl
+
+use strict;
+use warnings;
+
+$ARGV[0] =~ /^(\d\d)\:(\d\d)\s?(am|pm)?$/ && length($3)
+   ? ($3 eq "pm"
+       ? print $1 eq '12' ? '12' : $1 + 12, ":$2\n"
+       : print $1 eq '12' ? '00' : $1, ":$2\n"
+     )
+   : ($1 >= 12 && $1 < 24
+       ? print $1 eq '12' ? '12' : sprintf('%02d', $1 - 12), ":$2 pm\n" 
+       : print $1 eq '00'|| $1 eq '24' ? '12' : $1, ":$2 am\n"
+     );
+
diff --git a/challenge-100/arne-sommer/perl/ch-2.pl b/challenge-100/arne-sommer/perl/ch-2.pl
new file mode 100755
index 0000000000..f8c1132434
--- /dev/null
+++ b/challenge-100/arne-sommer/perl/ch-2.pl
@@ -0,0 +1,40 @@
+#! /usr/bin/env perl
+
+use strict;
+use warnings;
+use feature 'say';
+use feature 'signatures';
+use String::Util 'trim';
+use List::Util 'min';
+
+no warnings "experimental::signatures";
+
+my $tree = shift(@ARGV) // "1 | 2 4 | 6 4 9 | 5 1 7 2";
+my @tree;
+
+for my $row (split('\|', $tree))
+{
+  my @row = split(/\s+/, trim($row));
+  push(@tree, \@row);
+}
+
+my @solutions;
+
+traverse(0, 0, 0);
+
+sub traverse($row, $col, $sum)
+{
+  $sum += $tree[$row][$col];
+  
+  if ($tree[$row+1])
+  {
+    traverse($row+1, $col,   $sum);
+    traverse($row+1, $col+1, $sum);
+  }
+  else
+  {
+    push(@solutions, $sum);
+  }
+}
+
+say min(@solutions);
diff --git a/challenge-100/arne-sommer/perl/fun-time-perl b/challenge-100/arne-sommer/perl/fun-time-perl
new file mode 100755
index 0000000000..0b73acc9e1
--- /dev/null
+++ b/challenge-100/arne-sommer/perl/fun-time-perl
@@ -0,0 +1,15 @@
+#! /usr/bin/env perl
+
+use strict;
+use warnings;
+
+$ARGV[0] =~ /^(\d\d)\:(\d\d)\s?(am|pm)?$/ && length($3)
+   ? ($3 eq "pm"
+       ? print $1 eq '12' ? '12' : $1 + 12, ":$2\n"
+       : print $1 eq '12' ? '00' : $1, ":$2\n"
+     )
+   : ($1 >= 12 && $1 < 24
+       ? print $1 eq '12' ? '12' : sprintf('%02d', $1 - 12), ":$2 pm\n" 
+       : print $1 eq '00'|| $1 eq '24' ? '12' : $1, ":$2 am\n"
+     );
+
diff --git a/challenge-100/arne-sommer/perl/triangle-sum-perl b/challenge-100/arne-sommer/perl/triangle-sum-perl
new file mode 100755
index 0000000000..f8c1132434
--- /dev/null
+++ b/challenge-100/arne-sommer/perl/triangle-sum-perl
@@ -0,0 +1,40 @@
+#! /usr/bin/env perl
+
+use strict;
+use warnings;
+use feature 'say';
+use feature 'signatures';
+use String::Util 'trim';
+use List::Util 'min';
+
+no warnings "experimental::signatures";
+
+my $tree = shift(@ARGV) // "1 | 2 4 | 6 4 9 | 5 1 7 2";
+my @tree;
+
+for my $row (split('\|', $tree))
+{
+  my @row = split(/\s+/, trim($row));
+  push(@tree, \@row);
+}
+
+my @solutions;
+
+traverse(0, 0, 0);
+
+sub traverse($row, $col, $sum)
+{
+  $sum += $tree[$row][$col];
+  
+  if ($tree[$row+1])
+  {
+    traverse($row+1, $col,   $sum);
+    traverse($row+1, $col+1, $sum);
+  }
+  else
+  {
+    push(@solutions, $sum);
+  }
+}
+
+say min(@solutions);
diff --git a/challenge-100/arne-sommer/raku/ch-1.raku b/challenge-100/arne-sommer/raku/ch-1.raku
new file mode 100755
index 0000000000..f1c23f9956
--- /dev/null
+++ b/challenge-100/arne-sommer/raku/ch-1.raku
@@ -0,0 +1,12 @@
+#! /usr/bin/env raku
+
+@*ARGS[0] ~~ /^(\d\d)\:(\d\d) \s? ([<[ap]>m]?)$/ && $2.chars
+   ?? ($2 eq "pm"
+       ?? say "{ $0 eq '12' ?? '12' !! $0 + 12 }:{ $1 }"
+       !! say "{ $0 eq '12' ?? '00' !! $0  }:{ $1 }"
+      )
+   !! (12 <= $0 < 24
+       ?? say "{ $0 eq '12' ?? '12' !! ($0 - 12).fmt('%02d') }:{ $1 } pm" 
+       !! say "{ $0 eq '00'|'24' ?? '12' !! $0 }:{ $1 } am"
+      );
+
diff --git a/challenge-100/arne-sommer/raku/ch-2.raku b/challenge-100/arne-sommer/raku/ch-2.raku
new file mode 100755
index 0000000000..1ab8f025c0
--- /dev/null
+++ b/challenge-100/arne-sommer/raku/ch-2.raku
@@ -0,0 +1,26 @@
+#! /usr/bin/env raku
+
+unit sub MAIN (Str $tree = "1 | 2 4 | 6 4 9 | 5 1 7 2");
+
+my @tree  = $tree.split("|")>>.words;
+
+my @solutions;
+
+traverse(0, 0, 0);
+
+sub traverse($row, $col, $sum is copy)
+{
+  $sum += @tree[$row][$col];
+  
+  if @tree[$row+1]
+  {
+    traverse($row+1, $col,   $sum);
+    traverse($row+1, $col+1, $sum);
+  }
+  else
+  {
+    @solutions.push: $sum;
+  }
+}
+
+say @solutions.min;
diff --git a/challenge-100/arne-sommer/raku/fun-time b/challenge-100/arne-sommer/raku/fun-time
new file mode 100755
index 0000000000..f1c23f9956
--- /dev/null
+++ b/challenge-100/arne-sommer/raku/fun-time
@@ -0,0 +1,12 @@
+#! /usr/bin/env raku
+
+@*ARGS[0] ~~ /^(\d\d)\:(\d\d) \s? ([<[ap]>m]?)$/ && $2.chars
+   ?? ($2 eq "pm"
+       ?? say "{ $0 eq '12' ?? '12' !! $0 + 12 }:{ $1 }"
+       !! say "{ $0 eq '12' ?? '00' !! $0  }:{ $1 }"
+      )
+   !! (12 <= $0 < 24
+       ?? say "{ $0 eq '12' ?? '12' !! ($0 - 12).fmt('%02d') }:{ $1 } pm" 
+       !! say "{ $0 eq '00'|'24' ?? '12' !! $0 }:{ $1 } am"
+      );
+
diff --git a/challenge-100/arne-sommer/raku/triangle-sum b/challenge-100/arne-sommer/raku/triangle-sum
new file mode 100755
index 0000000000..1ab8f025c0
--- /dev/null
+++ b/challenge-100/arne-sommer/raku/triangle-sum
@@ -0,0 +1,26 @@
+#! /usr/bin/env raku
+
+unit sub MAIN (Str $tree = "1 | 2 4 | 6 4 9 | 5 1 7 2");
+
+my @tree  = $tree.split("|")>>.words;
+
+my @solutions;
+
+traverse(0, 0, 0);
+
+sub traverse($row, $col, $sum is copy)
+{
+  $sum += @tree[$row][$col];
+  
+  if @tree[$row+1]
+  {
+    traverse($row+1, $col,   $sum);
+    traverse($row+1, $col+1, $sum);
+  }
+  else
+  {
+    @solutions.push: $sum;
+  }
+}
+
+say @solutions.min;
diff --git a/challenge-100/arne-sommer/raku/triangle-sum-verbose b/challenge-100/arne-sommer/raku/triangle-sum-verbose
new file mode 100755
index 0000000000..c1f044d3c2
--- /dev/null
+++ b/challenge-100/arne-sommer/raku/triangle-sum-verbose
@@ -0,0 +1,61 @@
+#! /usr/bin/env raku
+
+unit sub MAIN (Str $tree = "1 | 2 4 | 6 4 9 | 5 1 7 2", :v(:$verbose), :c(:$colour), :h(:$html-colour));
+
+class TrianglePath
+{
+  has Int $.sum;
+  has     @.path;
+}
+
+constant ansi-blue  = "\e[44m";
+constant ansi-green = "\e[42m";
+constant ansi-red   = "\e[101m";
+constant ansi-stop  = "\e[0m";
+
+constant html-blue  = '<span class="text-light bg-primary">';
+constant html-green = '<span class="text-light bg-success">';
+constant html-red   = '<span class="text-light bg-danger">';
+constant html-stop  = '</span>';
+
+my @tree   = $tree.split("|")>>.words;
+my $width  = $tree.split("|")>>.words>>.chars>>.max.max;
+my $height = @tree.elems;
+
+my @solutions;
+
+traverse(0, 0, 0, ());
+
+sub traverse($row, $col, $sum is copy, @path is copy)
+{
+  @path.push: $col;
+  $sum += @tree[$row][$col];
+  
+  if @tree[$row+1]
+  {
+    traverse($row+1, $col,   $sum, @path);
+    traverse($row+1, $col+1, $sum, @path);
+  }
+  else
+  {
+    say ": Sum: $sum. Path (as indices on the rows): { @path.raku }" if $verbose;
+    @solutions.push: TrianglePath.new(sum => $sum, path => @path);
+  }
+}
+
+my $first = @solutions.sort({$^a.sum <=> $^b.sum }).first;
+
+if $colour | $html-colour
+{
+  my $start = $html-colour ?? html-green !! ansi-green;
+  my $stop  = $html-colour ?? html-stop  !! ansi-stop;
+
+  for ^@tree.elems -> $row
+  {
+    say ": "
+      ~ (" " x $width * ($height - $row -1))
+      ~ (^@tree[$row].elems).map({ $_ eq $first.path[$row] ?? $start ~ @tree[$row][$_].fmt("%{$width}d") ~ $stop !! (@tree[$row][$_].fmt("%{$width}d")) }).join(" " x $width); 
+  }
+}
+
+say $first.sum;