- Added solutions by Mark Anderson.

- Added solutions by Niels van Dijke.
- Added solutions by Eric Cheung.
- Added solutions by Laurent Rosenfeld.
- Added solutions by E. Choroba.
- Added solutions by Feng Chang.
- Added solutions by W. Luis Mochan.
- Added solutions by Steven Wilson.
- Added solutions by Peter Meszaros.
- Added solutions by Peter Campbell Smith.
- Added solutions by David Ferrone.
- Added solutions by Matthew Neleigh.
- Added solutions by Thomas Kohler.
- Added solutions by Ali Moradi.
- Added solutions by Dave Jacoby.
- Added solutions by Jaldhar H. Vyas.

24 files changed, 2421 insertions, 2048 deletions

diff --git a/challenge-272/eric-cheung/python/ch-1.py b/challenge-272/eric-cheung/python/ch-1.py
new file mode 100755
index 0000000000..6ac6998ad4
--- /dev/null
+++ b/challenge-272/eric-cheung/python/ch-1.py
@@ -0,0 +1,7 @@
+

+## strIP = "1.1.1.1"  ## Example 1

+strIP = "255.101.1.0"  ## Example 2

+

+strOutput = strIP.replace(".", "[.]")

+

+print (strOutput)

diff --git a/challenge-272/eric-cheung/python/ch-2.py b/challenge-272/eric-cheung/python/ch-2.py
new file mode 100755
index 0000000000..52f8329ed9
--- /dev/null
+++ b/challenge-272/eric-cheung/python/ch-2.py
@@ -0,0 +1,9 @@
+

+## strInput = "hello"  ## Example 1

+## strInput = "perl"  ## Example 2

+strInput = "raku"  ## Example 3

+

+arrCode = [ord(charLoop) for charLoop in strInput]

+arrCodeAbsDiff = [abs(arrCode[nIndx] - arrCode[nIndx + 1]) for nIndx in range(len(arrCode) - 1)]

+

+print (sum(arrCodeAbsDiff))

diff --git a/challenge-272/laurent-rosenfeld/blog.txt b/challenge-272/laurent-rosenfeld/blog.txt
new file mode 100644
index 0000000000..6db0d8366f
--- /dev/null
+++ b/challenge-272/laurent-rosenfeld/blog.txt
@@ -0,0 +1 @@
+https://blogs.perl.org/users/laurent_r/2024/06/perl-weekly-challenge-272-defang-ip-address.html
diff --git a/challenge-272/laurent-rosenfeld/perl/ch-1.pl b/challenge-272/laurent-rosenfeld/perl/ch-1.pl
new file mode 100644
index 0000000000..41dd7d95fb
--- /dev/null
+++ b/challenge-272/laurent-rosenfeld/perl/ch-1.pl
@@ -0,0 +1,14 @@
+use strict;
+use warnings;
+use feature 'say';
+
+sub defang_ip {
+    $_[0] =~ s/\./[.]/g;
+    return $_[0] ;
+}
+
+my @tests = ("1.1.1.1", "255.101.1.0", "255.255.255.255");
+for my $test (@tests) {
+    printf "%-16s => ", $test;
+    say defang_ip $test;
+}
diff --git a/challenge-272/laurent-rosenfeld/raku/ch-1.raku b/challenge-272/laurent-rosenfeld/raku/ch-1.raku
new file mode 100644
index 0000000000..5059756751
--- /dev/null
+++ b/challenge-272/laurent-rosenfeld/raku/ch-1.raku
@@ -0,0 +1,10 @@
+sub defang-ip ($in is copy) {
+    $in ~~ s:g/\./[.]/;
+    return ~$in;
+}
+
+my @tests = "1.1.1.1", "255.101.1.0", "255.255.255.255";
+for @tests -> $test {
+    printf "%-16s => ", $test;
+    say defang-ip $test;
+}
diff --git a/challenge-272/perlboy1967/perl/ch1.pl b/challenge-272/perlboy1967/perl/ch-1.pl
index 39142f5b2f..39142f5b2f 100755
--- a/challenge-272/perlboy1967/perl/ch1.pl
+++ b/challenge-272/perlboy1967/perl/ch-1.pl
diff --git a/challenge-272/perlboy1967/perl/ch2.pl b/challenge-272/perlboy1967/perl/ch-2.pl
index 6f877bffa4..6f877bffa4 100755
--- a/challenge-272/perlboy1967/perl/ch2.pl
+++ b/challenge-272/perlboy1967/perl/ch-2.pl
diff --git a/stats/pwc-challenge-271.json b/stats/pwc-challenge-271.json
new file mode 100644
index 0000000000..157181b85e
--- /dev/null
+++ b/stats/pwc-challenge-271.json
@@ -0,0 +1,646 @@
+{
+   "drilldown" : {
+      "series" : [
+         {
+            "id" : "Ali Moradi",
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ],
+               [
+                  "Raku",
+                  2
+               ],
+               [
+                  "Blog",
+                  1
+               ]
+            ],
+            "name" : "Ali Moradi"
+         },
+         {
+            "data" : [
+               [
+                  "Raku",
+                  2
+               ],
+               [
+                  "Blog",
+                  1
+               ]
+            ],
+            "name" : "Arne Sommer",
+            "id" : "Arne Sommer"
+         },
+         {
+            "name" : "Athanasius",
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ],
+               [
+                  "Raku",
+                  2
+               ]
+            ],
+            "id" : "Athanasius"
+         },
+         {
+            "name" : "ATSchneider",
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ]
+            ],
+            "id" : "ATSchneider"
+         },
+         {
+            "data" : [
+               [
+                  "Raku",
+                  2
+               ]
+            ],
+            "name" : "BarrOff",
+            "id" : "BarrOff"
+         },
+         {
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ]
+            ],
+            "name" : "Bob Lied",
+            "id" : "Bob Lied"
+         },
+         {
+            "id" : "Bruce Gray",
+            "data" : [
+               [
+                  "Raku",
+                  2
+               ]
+            ],
+            "name" : "Bruce Gray"
+         },
+         {
+            "id" : "Cheok-Yin Fung",
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ]
+            ],
+            "name" : "Cheok-Yin Fung"
+         },
+         {
+            "id" : "Dave Jacoby",
+            "name" : "Dave Jacoby",
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ],
+               [
+                  "Blog",
+                  1
+               ]
+            ]
+         },
+         {
+            "id" : "David Ferrone",
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ]
+            ],
+            "name" : "David Ferrone"
+         },
+         {
+            "id" : "E. Choroba",
+            "name" : "E. Choroba",
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ]
+            ]
+         },
+         {
+            "data" : [
+               [
+                  "Raku",
+                  2
+               ]
+            ],
+            "name" : "Feng Chang",
+            "id" : "Feng Chang"
+         },
+         {
+            "name" : "Jaldhar H. Vyas",
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ],
+               [
+                  "Raku",
+                  2
+               ],
+               [
+                  "Blog",
+                  1
+               ]
+            ],
+            "id" : "Jaldhar H. Vyas"
+         },
+         {
+            "data" : [
+               [
+                  "Raku",
+                  2
+               ]
+            ],
+            "name" : "Jan Krnavek",
+            "id" : "Jan Krnavek"
+         },
+         {
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ],
+               [
+                  "Blog",
+                  1
+               ]
+            ],
+            "name" : "Jorg Sommrey",
+            "id" : "Jorg Sommrey"
+         },
+         {
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ],
+               [
+                  "Raku",
+                  2
+               ],
+               [
+                  "Blog",
+                  2
+               ]
+            ],
+            "name" : "Laurent Rosenfeld",
+            "id" : "Laurent Rosenfeld"
+         },
+         {
+            "id" : "Luca Ferrari",
+            "data" : [
+               [
+                  "Raku",
+                  2
+               ],
+               [
+                  "Blog",
+                  9
+               ]
+            ],
+            "name" : "Luca Ferrari"
+         },
+         {
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ]
+            ],
+            "name" : "Mariano Spadaccini",
+            "id" : "Mariano Spadaccini"
+         },
+         {
+            "data" : [
+               [
+                  "Raku",
+                  2
+               ]
+            ],
+            "name" : "Mark Anderson",
+            "id" : "Mark Anderson"
+         },
+         {
+            "id" : "Matthew Neleigh",
+            "name" : "Matthew Neleigh",
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ]
+            ]
+         },
+         {
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ],
+               [
+                  "Blog",
+                  1
+               ]
+            ],
+            "name" : "Matthias Muth",
+            "id" : "Matthias Muth"
+         },
+         {
+            "id" : "Nelo Tovar",
+            "name" : "Nelo Tovar",
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ]
+            ]
+         },
+         {
+            "id" : "Niels van Dijke",
+            "name" : "Niels van Dijke",
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ]
+            ]
+         },
+         {
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ],
+               [
+                  "Raku",
+                  2
+               ],
+               [
+                  "Blog",
+                  1
+               ]
+            ],
+            "name" : "Packy Anderson",
+            "id" : "Packy Anderson"
+         },
+         {
+            "id" : "Peter Campbell Smith",
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ],
+               [
+                  "Blog",
+                  1
+               ]
+            ],
+            "name" : "Peter Campbell Smith"
+         },
+         {
+            "id" : "Peter Meszaros",
+            "name" : "Peter Meszaros",
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ]
+            ]
+         },
+         {
+            "id" : "Reinier Maliepaard",
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ],
+               [
+                  "Blog",
+                  1
+               ]
+            ],
+            "name" : "Reinier Maliepaard"
+         },
+         {
+            "id" : "Robbie Hatley",
+            "name" : "Robbie Hatley",
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ],
+               [
+                  "Blog",
+                  1
+               ]
+            ]
+         },
+         {
+            "name" : "Robert Ransbottom",
+            "data" : [
+               [
+                  "Raku",
+                  2
+               ]
+            ],
+            "id" : "Robert Ransbottom"
+         },
+         {
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ],
+               [
+                  "Raku",
+                  2
+               ],
+               [
+                  "Blog",
+                  1
+               ]
+            ],
+            "name" : "Roger Bell_West",
+            "id" : "Roger Bell_West"
+         },
+         {
+            "id" : "Simon Green",
+            "name" : "Simon Green",
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ],
+               [
+                  "Blog",
+                  1
+               ]
+            ]
+         },
+         {
+            "id" : "Thomas Kohler",
+            "name" : "Thomas Kohler",
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ],
+               [
+                  "Blog",
+                  2
+               ]
+            ]
+         },
+         {
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ],
+               [
+                  "Blog",
+                  1
+               ]
+            ],
+            "name" : "W. Luis Mochan",
+            "id" : "W. Luis Mochan"
+         },
+         {
+            "name" : "Wanderdoc",
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ]
+            ],
+            "id" : "Wanderdoc"
+         }
+      ]
+   },
+   "series" : [
+      {
+         "data" : [
+            {
+               "y" : 5,
+               "drilldown" : "Ali Moradi",
+               "name" : "Ali Moradi"
+            },
+            {
+               "drilldown" : "Arne Sommer",
+               "y" : 3,
+               "name" : "Arne Sommer"
+            },
+            {
+               "drilldown" : "Athanasius",
+               "y" : 4,
+               "name" : "Athanasius"
+            },
+            {
+               "name" : "ATSchneider",
+               "drilldown" : "ATSchneider",
+               "y" : 2
+            },
+            {
+               "y" : 2,
+               "drilldown" : "BarrOff",
+               "name" : "BarrOff"
+            },
+            {
+               "name" : "Bob Lied",
+               "y" : 2,
+               "drilldown" : "Bob Lied"
+            },
+            {
+               "drilldown" : "Bruce Gray",
+               "y" : 2,
+               "name" : "Bruce Gray"
+            },
+            {
+               "name" : "Cheok-Yin Fung",
+               "drilldown" : "Cheok-Yin Fung",
+               "y" : 2
+            },
+            {
+               "y" : 3,
+               "drilldown" : "Dave Jacoby",
+               "name" : "Dave Jacoby"
+            },
+            {
+               "name" : "David Ferrone",
+               "drilldown" : "David Ferrone",
+               "y" : 2
+            },
+            {
+               "name" : "E. Choroba",
+               "drilldown" : "E. Choroba",
+               "y" : 2
+            },
+            {
+               "name" : "Feng Chang",
+               "y" : 2,
+               "drilldown" : "Feng Chang"
+            },
+            {
+               "name" : "Jaldhar H. Vyas",
+               "y" : 5,
+               "drilldown" : "Jaldhar H. Vyas"
+            },
+            {
+               "name" : "Jan Krnavek",
+               "y" : 2,
+               "drilldown" : "Jan Krnavek"
+            },
+            {
+               "name" : "Jorg Sommrey",
+               "y" : 3,
+               "drilldown" : "Jorg Sommrey"
+            },
+            {
+               "name" : "Laurent Rosenfeld",
+               "drilldown" : "Laurent Rosenfeld",
+               "y" : 6
+            },
+            {
+               "name" : "Luca Ferrari",
+               "y" : 11,
+               "drilldown" : "Luca Ferrari"
+            },
+            {
+               "name" : "Mariano Spadaccini",
+               "y" : 2,
+               "drilldown" : "Mariano Spadaccini"
+            },
+            {
+               "y" : 2,
+               "drilldown" : "Mark Anderson",
+               "name" : "Mark Anderson"
+            },
+            {
+               "drilldown" : "Matthew Neleigh",
+               "y" : 2,
+               "name" : "Matthew Neleigh"
+            },
+            {
+               "name" : "Matthias Muth",
+               "y" : 3,
+               "drilldown" : "Matthias Muth"
+            },
+            {
+               "drilldown" : "Nelo Tovar",
+               "y" : 2,
+               "name" : "Nelo Tovar"
+            },
+            {
+               "y" : 2,
+               "drilldown" : "Niels van Dijke",
+               "name" : "Niels van Dijke"
+            },
+            {
+               "y" : 5,
+               "drilldown" : "Packy Anderson",
+               "name" : "Packy Anderson"
+            },
+            {
+               "drilldown" : "Peter Campbell Smith",
+               "y" : 3,
+               "name" : "Peter Campbell Smith"
+            },
+            {
+               "name" : "Peter Meszaros",
+               "y" : 2,
+               "drilldown" : "Peter Meszaros"
+            },
+            {
+               "name" : "Reinier Maliepaard",
+               "y" : 3,
+               "drilldown" : "Reinier Maliepaard"
+            },
+            {
+               "name" : "Robbie Hatley",
+               "drilldown" : "Robbie Hatley",
+               "y" : 3
+            },
+            {
+               "y" : 2,
+               "drilldown" : "Robert Ransbottom",
+               "name" : "Robert Ransbottom"
+            },
+            {
+               "name" : "Roger Bell_West",
+               "y" : 5,
+               "drilldown" : "Roger Bell_West"
+            },
+            {
+               "name" : "Simon Green",
+               "drilldown" : "Simon Green",
+               "y" : 3
+            },
+            {
+               "name" : "Thomas Kohler",
+               "drilldown" : "Thomas Kohler",
+               "y" : 4
+            },
+            {
+               "y" : 3,
+               "drilldown" : "W. Luis Mochan",
+               "name" : "W. Luis Mochan"
+            },
+            {
+               "drilldown" : "Wanderdoc",
+               "y" : 2,
+               "name" : "Wanderdoc"
+            }
+         ],
+         "colorByPoint" : 1,
+         "name" : "The Weekly Challenge - 271"
+      }
+   ],
+   "subtitle" : {
+      "text" : "[Champions: 34] Last updated at 2024-06-04 10:28:51 GMT"
+   },
+   "title" : {
+      "text" : "The Weekly Challenge - 271"
+   },
+   "yAxis" : {
+      "title" : {
+         "text" : "Total Solutions"
+      }
+   },
+   "legend" : {
+      "enabled" : 0
+   },
+   "xAxis" : {
+      "type" : "category"
+   },
+   "plotOptions" : {
+      "series" : {
+         "dataLabels" : {
+            "enabled" : 1,
+            "format" : "{point.y}"
+         },
+         "borderWidth" : 0
+      }
+   },
+   "chart" : {
+      "type" : "column"
+   },
+   "tooltip" : {
+      "followPointer" : 1,
+      "pointFormat" : "<span style='color:{point.color}'>{point.name}</span>: <b>{point.y:f}</b><br/>",
+      "headerFormat" : "<span style='font-size:11px'>{series.name}</span><br/>"
+   }
+}
diff --git a/stats/pwc-current.json b/stats/pwc-current.json
index db0951f666..ee3aaf593e 100644
--- a/stats/pwc-current.json
+++ b/stats/pwc-current.json
@@ -1,13 +1,16 @@
 {
-   "legend" : {
-      "enabled" : 0
+   "title" : {
+      "text" : "The Weekly Challenge - 272"
    },
-   "xAxis" : {
-      "type" : "category"
+   "tooltip" : {
+      "pointFormat" : "<span style='color:{point.color}'>{point.name}</span>: <b>{point.y:f}</b><br/>",
+      "followPointer" : 1,
+      "headerFormat" : "<span style='font-size:11px'>{series.name}</span><br/>"
    },
    "drilldown" : {
       "series" : [
          {
+            "id" : "Ali Moradi",
             "data" : [
                [
                   "Perl",
@@ -22,98 +25,25 @@
                   1
                ]
             ],
-            "id" : "Ali Moradi",
             "name" : "Ali Moradi"
          },
          {
-            "data" : [
-               [
-                  "Raku",
-                  2
-               ],
-               [
-                  "Blog",
-                  1
-               ]
-            ],
-            "id" : "Arne Sommer",
-            "name" : "Arne Sommer"
-         },
-         {
-            "data" : [
-               [
-                  "Perl",
-                  2
-               ],
-               [
-                  "Raku",
-                  2
-               ]
-            ],
-            "name" : "Athanasius",
-            "id" : "Athanasius"
-         },
-         {
-            "id" : "ATSchneider",
-            "name" : "ATSchneider",
-            "data" : [
-               [
-                  "Perl",
-                  2
-               ]
-            ]
-         },
-         {
-            "data" : [
-               [
-                  "Raku",
-                  2
-               ]
-            ],
-            "name" : "BarrOff",
-            "id" : "BarrOff"
-         },
-         {
+            "id" : "Dave Jacoby",
             "data" : [
                [
                   "Perl",
                   2
                ]
             ],
-            "name" : "Bob Lied",
-            "id" : "Bob Lied"
+            "name" : "Dave Jacoby"
          },
          {
-            "id" : "Bruce Gray",
-            "name" : "Bruce Gray",
-            "data" : [
-               [
-                  "Raku",
-                  2
-               ]
-            ]
-         },
-         {
-            "id" : "Cheok-Yin Fung",
-            "name" : "Cheok-Yin Fung",
-            "data" : [
-               [
-                  "Perl",
-                  2
-               ]
-            ]
-         },
-         {
-            "id" : "Dave Jacoby",
-            "name" : "Dave Jacoby",
+            "id" : "David Ferrone",
+            "name" : "David Ferrone",
             "data" : [
                [
                   "Perl",
                   2
-               ],
-               [
-                  "Blog",
-                  1
                ]
             ]
          },
@@ -124,8 +54,8 @@
                   2
                ]
             ],
-            "id" : "David Ferrone",
-            "name" : "David Ferrone"
+            "name" : "E. Choroba",
+            "id" : "E. Choroba"
          },
          {
             "data" : [
@@ -139,7 +69,6 @@
          },
          {
             "name" : "Jaldhar H. Vyas",
-            "id" : "Jaldhar H. Vyas",
             "data" : [
                [
                   "Perl",
@@ -153,173 +82,60 @@
                   "Blog",
                   1
                ]
-            ]
-         },
-         {
-            "id" : "Jan Krnavek",
-            "name" : "Jan Krnavek",
-            "data" : [
-               [
-                  "Raku",
-                  2
-               ]
-            ]
+            ],
+            "id" : "Jaldhar H. Vyas"
          },
          {
-            "name" : "Jorg Sommrey",
-            "id" : "Jorg Sommrey",
             "data" : [
                [
                   "Perl",
-                  2
-               ],
-               [
-                  "Blog",
                   1
-               ]
-            ]
-         },
-         {
-            "data" : [
-               [
-                  "Perl",
-                  2
                ],
                [
                   "Raku",
-                  2
+                  1
                ],
                [
                   "Blog",
-                  2
+                  1
                ]
             ],
-            "id" : "Laurent Rosenfeld",
-            "name" : "Laurent Rosenfeld"
+            "name" : "Laurent Rosenfeld",
+            "id" : "Laurent Rosenfeld"
          },
          {
-            "id" : "Luca Ferrari",
-            "name" : "Luca Ferrari",
+            "id" : "Mark Anderson",
             "data" : [
                [
                   "Raku",
                   2
-               ],
-               [
-                  "Blog",
-                  9
-               ]
-            ]
-         },
-         {
-            "data" : [
-               [
-                  "Perl",
-                  2
                ]
             ],
-            "id" : "Mariano Spadaccini",
-            "name" : "Mariano Spadaccini"
+            "name" : "Mark Anderson"
          },
          {
             "data" : [
                [
-                  "Raku",
+                  "Perl",
                   2
                ]
             ],
-            "name" : "Mark Anderson",
-            "id" : "Mark Anderson"
-         },
-         {
-            "id" : "Matthew Neleigh",
             "name" : "Matthew Neleigh",
-            "data" : [
-               [
-                  "Perl",
-                  2
-               ]
-            ]
+            "id" : "Matthew Neleigh"
          },
          {
-            "name" : "Matthias Muth",
-            "id" : "Matthias Muth",
             "data" : [
                [
                   "Perl",
                   2
-               ],
-               [
-                  "Blog",
-                  1
-               ]
-            ]
-         },
-         {
-            "name" : "Nelo Tovar",
-            "id" : "Nelo Tovar",
-            "data" : [
-               [
-                  "Perl",