- Added solutions by Andrezgz.

36 files changed, 5689 insertions, 5618 deletions

diff --git a/challenge-025/lars-balker/perl5/ch-1.pl b/challenge-025/lars-balker/perl5/ch-1.pl
new file mode 100644
index 0000000000..41021a5473
--- /dev/null
+++ b/challenge-025/lars-balker/perl5/ch-1.pl
@@ -0,0 +1,41 @@
+#!/usr/bin/env perl
+
+use v5.10;
+use strict;
+use warnings;
+
+# Generate a longest sequence of the following “English Pokemon” names
+# where each name starts with the last letter of previous name.
+
+my @names = qw/
+    audino bagon baltoy banette bidoof braviary bronzor carracosta
+    charmeleon cresselia croagunk darmanitan deino emboar emolga
+    exeggcute gabite girafarig gulpin haxorus heatmor heatran ivysaur
+    jellicent jumpluff kangaskhan kricketune landorus ledyba loudred
+    lumineon lunatone machamp magnezone mamoswine nosepass petilil
+    pidgeotto pikachu pinsir poliwrath poochyena porygon2 porygonz
+    registeel relicanth remoraid rufflet sableye scolipede scrafty
+    seaking sealeo silcoon simisear snivy snorlax spoink starly
+    tirtouga trapinch treecko tyrogue vigoroth vulpix wailord
+    wartortle whismur wingull yamask
+/;
+
+my $longest = [];
+
+try([], "", @names);
+
+say "@$longest";
+
+# naive brute force recursion
+sub try {
+    my ($picks, $prefix, @rest) = @_;
+
+    $longest = $picks if @$picks > @$longest;
+
+    for (my $i = 0; $i < @rest; ++$i) {
+        next unless $rest[$i] =~ /^$prefix/;
+        try([@$picks, $rest[$i]],
+            substr($rest[$i], -1),
+            @rest[0..$i-1, $i+1..$#rest]);
+    }
+}
diff --git a/stats/pwc-challenge-001.json b/stats/pwc-challenge-001.json
index d64b6376c3..91fe3beed0 100644
--- a/stats/pwc-challenge-001.json
+++ b/stats/pwc-challenge-001.json
@@ -1,24 +1,324 @@
 {
+   "yAxis" : {
+      "title" : {
+         "text" : "Total Solutions"
+      }
+   },
+   "title" : {
+      "text" : "Perl Weekly Challenge - 001"
+   },
+   "series" : [
+      {
+         "colorByPoint" : 1,
+         "data" : [
+            {
+               "y" : 3,
+               "drilldown" : "Adam Russell",
+               "name" : "Adam Russell"
+            },
+            {
+               "name" : "Ailbhe Tweedie",
+               "y" : 1,
+               "drilldown" : "Ailbhe Tweedie"
+            },
+            {
+               "y" : 2,
+               "drilldown" : "Alex Daniel",
+               "name" : "Alex Daniel"
+            },
+            {
+               "drilldown" : "Andrezgz",
+               "y" : 2,
+               "name" : "Andrezgz"
+            },
+            {
+               "y" : 2,
+               "drilldown" : "Antonio Gamiz",
+               "name" : "Antonio Gamiz"
+            },
+            {
+               "y" : 5,
+               "drilldown" : "Arne Sommer",
+               "name" : "Arne Sommer"
+            },
+            {
+               "name" : "Arpad Toth",
+               "y" : 2,
+               "drilldown" : "Arpad Toth"
+            },
+            {
+               "drilldown" : "Athanasius",
+               "y" : 2,
+               "name" : "Athanasius"
+            },
+            {
+               "y" : 2,
+               "drilldown" : "Bob Kleemann",
+               "name" : "Bob Kleemann"
+            },
+            {
+               "drilldown" : "Daniel Mantovani",
+               "y" : 1,
+               "name" : "Daniel Mantovani"
+            },
+            {
+               "y" : 3,
+               "drilldown" : "Dave Cross",
+               "name" : "Dave Cross"
+            },
+            {
+               "drilldown" : "Dave Jacoby",
+               "y" : 2,
+               "name" : "Dave Jacoby"
+            },
+            {
+               "y" : 2,
+               "drilldown" : "David Kayal",
+               "name" : "David Kayal"
+            },
+            {
+               "drilldown" : "Doug Schrag",
+               "y" : 2,
+               "name" : "Doug Schrag"
+            },
+            {
+               "y" : 4,
+               "drilldown" : "Dr James A. Smith",
+               "name" : "Dr James A. Smith"
+            },
+            {
+               "name" : "Duncan C. White",
+               "y" : 2,
+               "drilldown" : "Duncan C. White"
+            },
+            {
+               "name" : "Eddy HS",
+               "drilldown" : "Eddy HS",
+               "y" : 2
+            },
+            {
+               "y" : 2,
+               "drilldown" : "Finley",
+               "name" : "Finley"
+            },
+            {
+               "drilldown" : "Fred Zinn",
+               "y" : 1,
+               "name" : "Fred Zinn"
+            },
+            {
+               "name" : "Freddie B",
+               "y" : 2,
+               "drilldown" : "Freddie B"
+            },
+            {
+               "drilldown" : "Gustavo Chaves",
+               "y" : 1,
+               "name" : "Gustavo Chaves"
+            },
+            {
+               "drilldown" : "JJ Merelo",
+               "y" : 2,
+               "name" : "JJ Merelo"
+            },
+            {
+               "name" : "Jaldhar H. Vyas",
+               "y" : 4,
+               "drilldown" : "Jaldhar H. Vyas"
+            },
+            {
+               "name" : "Jeff",
+               "drilldown" : "Jeff",
+               "y" : 2
+            },
+            {
+               "name" : "Jeremy Carman",
+               "drilldown" : "Jeremy Carman",
+               "y" : 2
+            },
+            {
+               "y" : 1,
+               "drilldown" : "Jim Bacon",
+               "name" : "Jim Bacon"
+            },
+            {
+               "name" : "Jo Christian Oterhals",
+               "drilldown" : "Jo Christian Oterhals",
+               "y" : 5
+            },
+            {
+               "name" : "Joelle Maslak",
+               "y" : 4,
+               "drilldown" : "Joelle Maslak"
+            },
+            {
+               "drilldown" : "John Barrett",
+               "y" : 1,
+               "name" : "John Barrett"
+            },
+            {
+               "name" : "Juan Caballero",
+               "y" : 2,
+               "drilldown" : "Juan Caballero"
+            },
+            {
+               "name" : "Khalid",
+               "drilldown" : "Khalid",
+               "y" : 2
+            },
+            {
+               "name" : "Kian-Meng Ang",
+               "drilldown" : "Kian-Meng Ang",
+               "y" : 3
+            },
+            {
+               "name" : "Kivanc Yazan",
+               "drilldown" : "Kivanc Yazan",
+               "y" : 2
+            },
+            {
+               "drilldown" : "Lars Balker",
+               "y" : 4,
+               "name" : "Lars Balker"
+            },
+            {
+               "name" : "Laurent Rosenfeld",
+               "y" : 4,
+               "drilldown" : "Laurent Rosenfeld"
+            },
+            {
+               "y" : 2,
+               "drilldown" : "Mark Senn",
+               "name" : "Mark Senn"
+            },
+            {
+               "name" : "Martin Mugeni",
+               "y" : 2,
+               "drilldown" : "Martin Mugeni"
+            },
+            {
+               "name" : "Neil Bowers",
+               "y" : 1,
+               "drilldown" : "Neil Bowers"
+            },
+            {
+               "name" : "Nick Logan",
+               "y" : 4,
+               "drilldown" : "Nick Logan"
+            },
+            {
+               "y" : 2,
+               "drilldown" : "Oleksii Tsvietnov",
+               "name" : "Oleksii Tsvietnov"
+            },
+            {
+               "name" : "Ozzy",
+               "drilldown" : "Ozzy",
+               "y" : 2
+            },
+            {
+               "y" : 2,
+               "drilldown" : "Pavel Jurca",
+               "name" : "Pavel Jurca"
+            },
+            {
+               "name" : "Pete Houston",
+               "drilldown" : "Pete Houston",
+               "y" : 2
+            },
+            {
+               "y" : 3,
+               "drilldown" : "Philippe Bruhat",
+               "name" : "Philippe Bruhat"
+            },
+            {
+               "drilldown" : "Prajith P",
+               "y" : 1,
+               "name" : "Prajith P"
+            },
+            {
+               "drilldown" : "Sean Meininger",
+               "y" : 2,
+               "name" : "Sean Meininger"
+            },
+            {
+               "name" : "Simon Proctor",
+               "drilldown" : "Simon Proctor",
+               "y" : 6
+            },
+            {
+               "name" : "Simon Reinhardt",
+               "drilldown" : "Simon Reinhardt",
+               "y" : 2
+            },
+            {
+               "y" : 4,
+               "drilldown" : "Steve Rogerson",
+               "name" : "Steve Rogerson"
+            },
+            {
+               "name" : "Steven Wilson",
+               "y" : 2,
+               "drilldown" : "Steven Wilson"
+            },
+            {
+               "name" : "Tiago Stock",
+               "drilldown" : "Tiago Stock",
+               "y" : 1
+            },
+            {
+               "name" : "Tore Andersson",
+               "drilldown" : "Tore Andersson",
+               "y" : 2
+            },
+            {
+               "name" : "Veesh Goldman",
+               "y" : 1,
+               "drilldown" : "Veesh Goldman"
+            },
+            {
+               "drilldown" : "William Gilmore",
+               "y" : 1,
+               "name" : "William Gilmore"
+            },
+            {
+               "drilldown" : "Yet Ebreo",
+               "y" : 4,
+               "name" : "Yet Ebreo"
+            }
+         ],
+         "name" : "Perl Weekly Challenge - 001"
+      }
+   ],
+   "tooltip" : {
+      "headerFormat" : "<span style='font-size:11px'>{series.name}</span><br/>",
+      "pointFormat" : "<span style='color:{point.color}'>{point.name}</span>: <b>{point.y:f}</b><br/>",
+      "followPointer" : 1
+   },
    "chart" : {
       "type" : "column"
    },
    "subtitle" : {
-      "text" : "[Champions: 55] Last updated at 2019-09-15 17:47:38 GMT"
+      "text" : "[Champions: 55] Last updated at 2019-09-17 11:25:19 GMT"
    },
    "plotOptions" : {
       "series" : {
          "borderWidth" : 0,
          "dataLabels" : {
-            "enabled" : 1,
-            "format" : "{point.y}"
+            "format" : "{point.y}",
+            "enabled" : 1
          }
       }
    },
+   "xAxis" : {
+      "type" : "category"
+   },
+   "legend" : {
+      "enabled" : 0
+   },
    "drilldown" : {
       "series" : [
          {
-            "id" : "Adam Russell",
-            "name" : "Adam Russell",
             "data" : [
                [
                   "Perl 5",
@@ -28,7 +328,9 @@
                   "Blog",
                   1
                ]
-            ]
+            ],
+            "name" : "Adam Russell",
+            "id" : "Adam Russell"
          },
          {
             "data" : [
@@ -51,27 +353,27 @@
             "id" : "Alex Daniel"
          },
          {
+            "name" : "Andrezgz",
             "data" : [
                [
                   "Perl 5",
                   2
                ]
             ],
-            "name" : "Andrezgz",
             "id" : "Andrezgz"
          },
          {
-            "name" : "Antonio Gamiz",
             "data" : [
                [
                   "Perl 6",
                   2
                ]
             ],
+            "name" : "Antonio Gamiz",
             "id" : "Antonio Gamiz"
          },
          {
-            "id" : "Arne Sommer",
+            "name" : "Arne Sommer",
             "data" : [
                [
                   "Perl 5",
@@ -86,17 +388,17 @@
                   1
                ]
             ],
-            "name" : "Arne Sommer"
+            "id" : "Arne Sommer"
          },
          {
-            "id" : "Arpad Toth",
+            "name" : "Arpad Toth",
             "data" : [
                [
                   "Perl 5",
                   2
                ]
             ],
-            "name" : "Arpad Toth"
+            "id" : "Arpad Toth"
          },
          {
             "id" : "Athanasius",
@@ -109,13 +411,13 @@
             ]
          },
          {
-            "name" : "Bob Kleemann",
             "data" : [
                [
                   "Perl 5",
                   2
                ]
             ],
+            "name" : "Bob Kleemann",
             "id" : "Bob Kleemann"
          },
          {
@@ -129,7 +431,6 @@
             ]
          },
          {
-            "id" : "Dave Cross",
             "data" : [
                [
                   "Perl 5",
@@ -140,9 +441,11 @@
                   1
                ]
             ],
-            "name" : "Dave Cross"
+            "name" : "Dave Cross",
+            "id" : "Dave Cross"
          },
          {
+            "id" : "Dave Jacoby",
             "data" : [
                [
                   "Perl 5",
@@ -153,8 +456,7 @@
                   1
                ]
             ],
-            "name" : "Dave Jacoby",
-            "id" : "Dave Jacoby"
+            "name" : "Dave Jacoby"
          },
          {
             "name" : "David Kayal",
@@ -167,17 +469,17 @@
             "id" : "David Kayal"
          },
          {
+            "id" : "Doug Schrag",
+            "name" : "Doug Schrag",
             "data" : [
                [
                   "Perl 6",
                   2
                ]
-            ],
-            "name" : "Doug Schrag",
-            "id" : "Doug Schrag"
+            ]
          },
          {
-            "id" : "Dr James A. Smith",
+            "name" : "Dr James A. Smith",
             "data" : [
                [
                   "Perl 5",
@@ -188,70 +490,69 @@
                   2
                ]
             ],
-            "name" : "Dr James A. Smith"
+            "id" : "Dr James A. Smith"
          },
          {
-            "name" : "Duncan C. White",
+            "id" : "Duncan C. White",
             "data" : [
                [
                   "Perl 5",
                   2
                ]
             ],
-            "id" : "Duncan C. White"
+            "name" : "Duncan C. White"
          },
          {
+            "id" : "Eddy HS",
             "data" : [
                [
                   "Perl 5",
                   2
                ]
             ],
-            "name" : "Eddy HS",
-            "id" : "Eddy HS"
+            "name" : "Eddy HS"
          },
          {
-            "id" : "Finley",
-            "name" : "Finley",
             "data" : [
                [
                   "Perl 6",
                   2
                ]
-            ]
+            ],
+            "name" : "Finley",
+            "id" : "Finley"
          },
          {
+            "name" : "Fred Zinn",
             "data" : [
                [
                   "Perl 5",
                   1
                ]
             ],
-            "name" : "Fred Zinn",
             "id" : "Fred Zinn"
          },
          {
-            "name" : "Freddie B",
             "data" : [
                [
                   "Perl 5",
                   2
                ]
             ],
+            "name" : "Freddie B",
             "id" : "Freddie B"
          },
          {
             "id" : "Gustavo Chaves",
-            "name" : "Gustavo Chaves",
             "data" : [
                [
                   "Perl 5",
                   1
                ]
-            ]
+            ],
+            "name" : "Gustavo Chaves"
          },
          {
-            "name" : "JJ Merelo",
             "data" : [
                [
                   "Perl 6",
@@ -262,6 +563,7 @@
                   1
                ]
             ],
+            "name" : "JJ Merelo",
             "id" : "JJ Merelo"
          },
          {
@@ -279,14 +581,14 @@
             "id" : "Jaldhar H. Vyas"
          },
          {
+            "id" : "Jeff",
             "name" : "Jeff",
             "data" : [
                [
                   "Perl 5",
                   2
                ]
-            ],
-            "id" : "Jeff"
+            ]
          },
          {
             "id" : "Jeremy Carman",
@@ -303,16 +605,17 @@
             "name" : "Jeremy Carman"
          },
          {
+            "name" : "Jim Bacon",
             "data" : [
                [
                   "Perl 5",
                   1
                ]
             ],
-            "name" : "Jim Bacon",
             "id" : "Jim Bacon"
          },
          {
+            "id" : "Jo Christian Oterhals",
             "name" : "Jo Christian Oterhals",
             "data" : [
                [
@@ -327,8 +630,7 @@
                   "Blog",
                   1
                ]
-            ],
-            "id" : "Jo Christian Oterhals"
+            ]
          },
          {
             "id" : "Joelle Maslak",
@@ -345,37 +647,37 @@
             "name" : "Joelle Maslak"
          },
          {
-            "name" : "John Barrett",
             "data" : [
                [
                   "Perl 5",
                   1
                ]
             ],
+            "name" : "John Barrett",
             "id" : "John Barrett"
          },
          {
             "id" : "Juan Caballero",
-            "name" : "Juan Caballero",
             "data" : [
                [
                   "Perl 5",
                   2
                ]
-            ]
+            ],
+            "name" : "Juan Caballero"
          },
          {
-            "name" : "Khalid",
+            "id" : "Khalid",
             "data" : [
                [
                   "Perl 5",
                   2
                ]
             ],
-            "id" : "Khalid"
+            "name" : "Khalid"
          },
          {
-            "id" : "Kian-Meng Ang",
+            "name" : "Kian-Meng Ang",
             "data" : [
                [
                   "Perl 5",
@@ -386,19 +688,21 @@
                   1
                ]
             ],
-            "name" : "Kian-Meng Ang"
+            "id" : "Kian-Meng Ang"
          },
          {
-            "id" : "Kivanc Yazan",
             "name" : "Kivanc Yazan",
             "data" : [
                [
                   "Perl 5",
                   2
                ]
-            ]
+            ],
+            "id" : "Kivanc Yazan"
          },
          {
+            "id" : "Lars Balker",
+            "name" : "Lars Balker",
             "data" : [
                [
                   "Perl 5",
@@ -408,9 +712,7 @@
                   "Perl 6",
                   2
                ]
-            ],
-            "name" : "Lars Balker",
-            "id" : "Lars Balker"
+            ]
          },
          {
             "id" : "Laurent Rosenfeld",
@@ -441,14 +743,14 @@
             "id" : "Mark Senn"
          },
          {
+            "id" : "Martin Mugeni",
+            "name" : "Martin Mugeni",
             "data" : [
                [
                   "Perl 6",
                   2
                ]
-            ],
-            "name" : "Martin Mugeni",
-            "id" : "Martin Mugeni"
+            ]
          },
          {
             "id" : "Neil Bowers",
@@ -485,36 +787,37 @@
             "id" : "Oleksii Tsvietnov"
          },
          {
+            "id" : "Ozzy",
+            "name" : "Ozzy",
             "data" : [
                [
                   "Perl 6",
                   2
                ]
-            ],
-            "name" : "Ozzy",
-            "id" : "Ozzy"
+            ]
          },
          {
-            "id" : "Pavel Jurca",
             "data" : [
                [
                   "Perl 5",
                   2
                ]
             ],
-            "name" : "Pavel Jurca"
+            "name" : "Pavel Jurca",
+            "id" : "Pavel Jurca"
          },
          {
+            "id" : "Pete Houston",
             "data" : [
                [
                   "Perl 5",
                   2
                ]
             ],
-            "name" : "Pete Houston",
-            "id" : "Pete Houston"
+            "name" : "Pete Houston"
          },
          {
+            "id" : "Philippe Bruhat",
             "name" : "Philippe Bruhat",
             "data" : [
                [
@@ -525,8 +828,7 @@
                   "Blog",
                   1
                ]
-            ],
-            "id" : "Philippe Bruhat"
+            ]
          },
          {
             "id" : "Prajith P",
@@ -539,16 +841,17 @@
             ]
          },
          {
-            "id" : "Sean Meininger",
             "name" : "Sean Meininger",
             "data" : [
                [
                   "Perl 6",
                   2
                ]
-            ]
+            ],
+            "id" : "Sean Meininger"
          },
          {
+            "id" : "Simon Proctor",
             "name" : "Simon Proctor",
             "data" : [
                [
@@ -563,17 +866,16 @@
                   "Blog",
                   2
                ]
-            ],
-            "id" : "Simon Proctor"
+            ]
          },
          {
-            "name" : "Simon Reinhardt",
             "data" : [
                [
                   "Perl 5",
                   2
                ]
             ],
+            "name" : "Simon Reinhardt",
             "id" : "Simon Reinhardt"
          },
          {
@@ -602,23 +904,23 @@
          },
          {
             "id" : "Tiago Stock",
-            "name" : "Tiago Stock",
             "data" : [
                [
                   "Perl 5",
                   1
                ]
-            ]
+            ],
+            "name" : "Tiago Stock"
          },
          {
-            "name" : "Tore Andersson",
+            "id" : "Tore Andersson",
             "data" : [
                [
                   "Perl 5",
                   2
                ]
             ],
-            "id" : "Tore Andersson"
+            "name" : "Tore Andersson"
          },
          {
             "name" : "Veesh Goldman",
@@ -631,17 +933,17 @@
             "id" : "Veesh Goldman"
          },
          {
-            "id" : "William Gilmore",
             "name" : "William Gilmore",
             "data" : [
                [
                   "Perl 5",
                   1
                ]
-            ]
+            ],
+            "id" : "William Gilmore"
          },
          {
-            "name" : "Yet Ebreo",
+            "id" : "Yet Ebreo",
             "data" : [
                [
                   "Perl 5",
@@ -652,310 +954,8 @@
                   2
                ]
             ],
-            "id" : "Yet Ebreo"
+            "name" : "Yet Ebreo"
          }
       ]
-   },