10 files changed, 244 insertions, 1 deletions
diff --git a/challenge-275/packy-anderson/README.md b/challenge-275/packy-anderson/README.md
index 30f565cde1..0975c778da 100644
--- a/challenge-275/packy-anderson/README.md
+++ b/challenge-275/packy-anderson/README.md
@@ -22,4 +22,4 @@
 
 ## Blog Post
 
-[Bus Route, Bus Goat, Under My Umbrellamaaaaaaaaaaaa](https://packy.dardan.com/b/Mq)
+[Digitally Replace Broken Keys](https://packy.dardan.com/b/NA)
diff --git a/challenge-275/packy-anderson/blog.txt b/challenge-275/packy-anderson/blog.txt
new file mode 100644
index 0000000000..25f66a020d
--- /dev/null
+++ b/challenge-275/packy-anderson/blog.txt
@@ -0,0 +1 @@
+https://packy.dardan.com/b/NA
+\ No newline at end of file
diff --git a/challenge-275/packy-anderson/elixir/ch-1.exs b/challenge-275/packy-anderson/elixir/ch-1.exs
new file mode 100755
index 0000000000..1d8c332d04
--- /dev/null
+++ b/challenge-275/packy-anderson/elixir/ch-1.exs
@@ -0,0 +1,29 @@
+#!/usr/bin/env elixir
+
+defmodule PWC do
+  def brokenKeys(sentence, keys) do
+    {:ok, reg} = Regex.compile("[" <> Enum.join(keys) <> "]", [:caseless])
+    String.split(sentence)
+    |> Enum.filter(fn word -> not Regex.match?(reg, word) end)
+    |> Enum.count
+    |> to_string
+  end
+
+  def solution(sentence, keys) do
+    keysStr = "'" <> Enum.join(keys, "', '") <> "'"
+    IO.puts("Input: $sentence = \"#{sentence}\", @keys = (#{keysStr})")
+    IO.puts("Output: " <> brokenKeys(sentence, keys) )
+  end
+end
+
+IO.puts("Example 1:")
+PWC.solution("Perl Weekly Challenge", ["l", "a"])
+
+IO.puts("\nExample 2:")
+PWC.solution("Perl and Raku", ["a"])
+
+IO.puts("\nExample 3:")
+PWC.solution("Well done Team PWC", ["l", "o"])
+
+IO.puts("\nExample 4:")
+PWC.solution("The joys of polyglottism", ["T"])
diff --git a/challenge-275/packy-anderson/elixir/ch-2.exs b/challenge-275/packy-anderson/elixir/ch-2.exs
new file mode 100755
index 0000000000..c426dc0662
--- /dev/null
+++ b/challenge-275/packy-anderson/elixir/ch-2.exs
@@ -0,0 +1,36 @@
+#!/usr/bin/env elixir
+
+defmodule PWC do
+  def replaceDigits([], _, out), do: out
+
+  def replaceDigits([c | rest], last, out) do
+    if Regex.match?(~r/[0-9]/, c) do
+      <<chrval::utf8>> = last
+      c = List.to_string([ chrval + String.to_integer(c) ])
+      replaceDigits(rest, last, out <> c)
+    else
+      replaceDigits(rest, c, out <> c)
+    end
+  end
+
+  def replaceDigits(str) do
+    replaceDigits(String.graphemes(str), nil, "")
+  end
+
+  def solution(str) do
+    IO.puts("Input: $str = '#{str}'")
+    IO.puts("Output: '#{replaceDigits(str)}'")
+  end
+end
+
+IO.puts("Example 1:")
+PWC.solution("a1c1e1")
+
+IO.puts("\nExample 2:")
+PWC.solution("a1b2c3d4")
+
+IO.puts("\nExample 3:")
+PWC.solution("b2b")
+
+IO.puts("\nExample 4:")
+PWC.solution("a16z")
diff --git a/challenge-275/packy-anderson/perl/ch-1.pl b/challenge-275/packy-anderson/perl/ch-1.pl
new file mode 100755
index 0000000000..a3cb69a88e
--- /dev/null
+++ b/challenge-275/packy-anderson/perl/ch-1.pl
@@ -0,0 +1,26 @@
+#!/usr/bin/env perl
+use v5.40;
+
+sub brokenKeys($sentence, @keys) {
+  my @words = split /\s+/, $sentence;
+  my $regex = '[' . join('', @keys) . ']';
+  return ( scalar( grep {! /$regex/i } @words) );
+}
+
+sub solution($sentence, $keys) {
+  say 'Input: $sentence = "' . $sentence 
+    . '", @keys = (\'' . join("', '", @$keys) . '\')';
+  say 'Output: ' . brokenKeys($sentence, @$keys);
+}
+
+say "Example 1:";
+solution("Perl Weekly Challenge", ['l', 'a']);
+
+say "\nExample 2:";
+solution("Perl and Raku", ['a']);
+
+say "\nExample 3:";
+solution("Well done Team PWC", ['l', 'o']);
+
+say "\nExample 4:";
+solution("The joys of polyglottism", ['T']);
diff --git a/challenge-275/packy-anderson/perl/ch-2.pl b/challenge-275/packy-anderson/perl/ch-2.pl
new file mode 100755
index 0000000000..47b4111bed
--- /dev/null
+++ b/challenge-275/packy-anderson/perl/ch-2.pl
@@ -0,0 +1,35 @@
+#!/usr/bin/env perl
+use v5.40;
+
+sub replaceDigits($str) {
+  my @chars = split //, $str;
+  my $last_letter = $chars[0];
+  my $out;
+  foreach my $c ( @chars ) {
+    if ($c =~ /[0-9]/) {
+      $out .= chr( ord($last_letter) + $c );
+    }
+    else {
+      $out .= $c;
+      $last_letter = $c;
+    }
+  }
+  return $out;
+}
+
+sub solution($str) {
+  say "Input: \$str = '$str'";
+  say 'Output: \'' . replaceDigits($str) . '\'';
+}
+
+say "Example 1:";
+solution("a1c1e1");
+
+say "\nExample 2:";
+solution("a1b2c3d4");
+
+say "\nExample 3:";
+solution("b2b");
+
+say "\nExample 4:";
+solution("a16z");
+\ No newline at end of file
diff --git a/challenge-275/packy-anderson/python/ch-1.py b/challenge-275/packy-anderson/python/ch-1.py
new file mode 100755
index 0000000000..d552f7192b
--- /dev/null
+++ b/challenge-275/packy-anderson/python/ch-1.py
@@ -0,0 +1,27 @@
+#!/usr/bin/env python
+
+import re
+
+def brokenKeys(sentence, keys):
+  words = sentence.split()
+  regex = re.compile('[' + ''.join(keys) + ']', re.I)
+  return( len([
+    word for word in words if not re.search(regex, word)
+  ]) )
+
+def solution(sentence, keys):
+  keysStr = "'" + "', '".join(keys) + "'"
+  print(f'Input: $sentence = "{sentence}", @keys = ({keysStr})')
+  print(f'Output: {brokenKeys(sentence, keys)}')
+
+print('Example 1:')
+solution("Perl Weekly Challenge", ['l', 'a'])
+
+print('\nExample 2:')
+solution("Perl and Raku", ['a'])
+
+print('\nExample 3:')
+solution("Well done Team PWC", ['l', 'o'])
+
+print('\nExample 4:')
+solution("The joys of polyglottism", ['T'])
diff --git a/challenge-275/packy-anderson/python/ch-2.py b/challenge-275/packy-anderson/python/ch-2.py
new file mode 100755
index 0000000000..0b5a0d57ce
--- /dev/null
+++ b/challenge-275/packy-anderson/python/ch-2.py
@@ -0,0 +1,28 @@
+#!/usr/bin/env python
+
+def replaceDigits(str):
+  last_letter = str[0:1]
+  out = ''
+  for c in str:
+    if c.isnumeric():
+      out += chr( ord(last_letter) + int(c) )
+    else:
+      out += c
+      last_letter = c
+  return out
+
+def solution(str):
+  print(f"Input: $str = '{str}'")
+  print(f"Output: '{replaceDigits(str)}'")
+
+print('Example 1:')
+solution("a1c1e1")
+
+print('\nExample 2:')
+solution("a1b2c3d4")
+
+print('\nExample 3:')
+solution("b2b")
+
+print('\nExample 4:')
+solution("a16z")
diff --git a/challenge-275/packy-anderson/raku/ch-1.raku b/challenge-275/packy-anderson/raku/ch-1.raku
new file mode 100755
index 0000000000..41d6e1fdbc
--- /dev/null
+++ b/challenge-275/packy-anderson/raku/ch-1.raku
@@ -0,0 +1,26 @@
+#!/usr/bin/env raku
+use v6;
+
+sub brokenKeys($sentence, @keys) {
+  my @words = $sentence.comb(/\S+/);
+  my $regex = '<[' ~ @keys.join ~ ']>';
+  return ( ( @words.grep({! /:i <$regex>/ }) ).elems )
+}
+
+sub solution($sentence, @keys) {
+  say 'Input: $sentence = "' ~ $sentence 
+    ~ '", @keys = (\'' ~ @keys.join("', '") ~ '\')';
+  say 'Output: ' ~ brokenKeys($sentence, @keys);
+}
+
+say "Example 1:";
+solution("Perl Weekly Challenge", ['l', 'a']);
+
+say "\nExample 2:";
+solution("Perl and Raku", ['a']);
+
+say "\nExample 3:";
+solution("Well done Team PWC", ['l', 'o']);
+
+say "\nExample 4:";
+solution("The joys of polyglottism", ['T']);
diff --git a/challenge-275/packy-anderson/raku/ch-2.raku b/challenge-275/packy-anderson/raku/ch-2.raku
new file mode 100755
index 0000000000..d5429c68d2
--- /dev/null
+++ b/challenge-275/packy-anderson/raku/ch-2.raku
@@ -0,0 +1,35 @@
+#!/usr/bin/env raku
+use v6;
+
+sub replaceDigits($str) {
+  my @chars = $str.comb;
+  my $last_letter = @chars[0];
+  my $out;
+  for @chars -> $c {
+    if ($c ~~ /<[0..9]>/) {
+      $out ~= ( $last_letter.ord + $c.Int ).chr;
+    }
+    else {
+      $out ~= $c;
+      $last_letter = $c;
+    }
+  }
+  return $out;
+}
+
+sub solution($str) {
+  say "Input: \$str = '$str'";
+  say 'Output: \'' ~ replaceDigits($str) ~ '\'';
+}
+
+say "Example 1:";
+solution("a1c1e1");
+
+say "\nExample 2:";
+solution("a1b2c3d4");
+
+say "\nExample 3:";
+solution("b2b");
+
+say "\nExample 4:";
+solution("a16z");