- Added solutions by Markus Holzer.

36 files changed, 5312 insertions, 5297 deletions

diff --git a/stats/pwc-challenge-001.json b/stats/pwc-challenge-001.json
index 8c87056def..d54dea2b81 100644
--- a/stats/pwc-challenge-001.json
+++ b/stats/pwc-challenge-001.json
@@ -1,9 +1,9 @@
 {
-   "xAxis" : {
-      "type" : "category"
+   "chart" : {
+      "type" : "column"
    },
-   "legend" : {
-      "enabled" : 0
+   "title" : {
+      "text" : "Perl Weekly Challenge - 001"
    },
    "drilldown" : {
       "series" : [
@@ -18,52 +18,52 @@
                   1
                ]
             ],
-            "name" : "Adam Russell",
-            "id" : "Adam Russell"
+            "id" : "Adam Russell",
+            "name" : "Adam Russell"
          },
          {
+            "name" : "Ailbhe Tweedie",
             "data" : [
                [
                   "Perl 5",
                   1
                ]
             ],
-            "id" : "Ailbhe Tweedie",
-            "name" : "Ailbhe Tweedie"
+            "id" : "Ailbhe Tweedie"
          },
          {
             "id" : "Alex Daniel",
-            "name" : "Alex Daniel",
             "data" : [
                [
                   "Perl 6",
                   2
                ]
-            ]
+            ],
+            "name" : "Alex Daniel"
          },
          {
+            "name" : "Andrezgz",
+            "id" : "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",
+            "id" : "Arne Sommer",
             "data" : [
                [
                   "Perl 5",
@@ -81,43 +81,43 @@
          },
          {
             "name" : "Arpad Toth",
-            "id" : "Arpad Toth",
             "data" : [
                [
                   "Perl 5",
                   2
                ]
-            ]
+            ],
+            "id" : "Arpad Toth"
          },
          {
             "name" : "Athanasius",
-            "id" : "Athanasius",
             "data" : [
                [
                   "Perl 5",
                   2
                ]
-            ]
+            ],
+            "id" : "Athanasius"
          },
          {
+            "name" : "Bob Kleemann",
+            "id" : "Bob Kleemann",
             "data" : [
                [
                   "Perl 5",
                   2
                ]
-            ],
-            "id" : "Bob Kleemann",
-            "name" : "Bob Kleemann"
+            ]
          },
          {
-            "name" : "Daniel Mantovani",
-            "id" : "Daniel Mantovani",
             "data" : [
                [
                   "Perl 5",
                   1
                ]
-            ]
+            ],
+            "id" : "Daniel Mantovani",
+            "name" : "Daniel Mantovani"
          },
          {
             "data" : [
@@ -130,12 +130,11 @@
                   1
                ]
             ],
-            "name" : "Dave Cross",
-            "id" : "Dave Cross"
+            "id" : "Dave Cross",
+            "name" : "Dave Cross"
          },
          {
             "name" : "Dave Jacoby",
-            "id" : "Dave Jacoby",
             "data" : [
                [
                   "Perl 5",
@@ -145,7 +144,8 @@
                   "Blog",
                   1
                ]
-            ]
+            ],
+            "id" : "Dave Jacoby"
          },
          {
             "data" : [
@@ -164,8 +164,8 @@
                   2
                ]
             ],
-            "name" : "Doug Schrag",
-            "id" : "Doug Schrag"
+            "id" : "Doug Schrag",
+            "name" : "Doug Schrag"
          },
          {
             "data" : [
@@ -178,18 +178,18 @@
                   2
                ]
             ],
-            "name" : "Dr James A. Smith",
-            "id" : "Dr James A. Smith"
+            "id" : "Dr James A. Smith",
+            "name" : "Dr James A. Smith"
          },
          {
             "id" : "Duncan C. White",
-            "name" : "Duncan C. White",
             "data" : [
                [
                   "Perl 5",
                   2
                ]
-            ]
+            ],
+            "name" : "Duncan C. White"
          },
          {
             "data" : [
@@ -202,48 +202,47 @@
             "name" : "Eddy HS"
          },
          {
+            "name" : "Finley",
             "data" : [
                [
                   "Perl 6",
                   2
                ]
             ],
-            "name" : "Finley",
             "id" : "Finley"
          },
          {
-            "id" : "Fred Zinn",
-            "name" : "Fred Zinn",
             "data" : [
                [
                   "Perl 5",
                   1
                ]
-            ]
+            ],
+            "id" : "Fred Zinn",
+            "name" : "Fred Zinn"
          },
          {
             "id" : "Freddie B",
-            "name" : "Freddie B",
             "data" : [
                [
                   "Perl 5",
                   2
                ]
-            ]
+            ],
+            "name" : "Freddie B"
          },
          {
+            "name" : "Gustavo Chaves",
             "data" : [
                [
                   "Perl 5",
                   1
                ]
             ],
-            "name" : "Gustavo Chaves",
             "id" : "Gustavo Chaves"
          },
          {
             "name" : "JJ Merelo",
-            "id" : "JJ Merelo",
             "data" : [
                [
                   "Perl 6",
@@ -253,9 +252,12 @@
                   "Blog",
                   1
                ]
-            ]
+            ],
+            "id" : "JJ Merelo"
          },
          {
+            "name" : "Jaldhar H. Vyas",
+            "id" : "Jaldhar H. Vyas",
             "data" : [
                [
                   "Perl 5",
@@ -265,19 +267,17 @@
                   "Perl 6",
                   2
                ]
-            ],
-            "name" : "Jaldhar H. Vyas",
-            "id" : "Jaldhar H. Vyas"
+            ]
          },
          {
+            "name" : "Jeff",
+            "id" : "Jeff",
             "data" : [
                [
                   "Perl 5",
                   2
                ]
-            ],
-            "id" : "Jeff",
-            "name" : "Jeff"
+            ]
          },
          {
             "data" : [
@@ -304,7 +304,6 @@
             "name" : "Jim Bacon"
          },
          {
-            "id" : "Jo Christian Oterhals",
             "name" : "Jo Christian Oterhals",
             "data" : [
                [
@@ -319,9 +318,11 @@
                   "Blog",
                   1
                ]
-            ]
+            ],
+            "id" : "Jo Christian Oterhals"
          },
          {
+            "name" : "Joelle Maslak",
             "data" : [
                [
                   "Perl 5",
@@ -332,42 +333,40 @@
                   2
                ]
             ],
-            "name" : "Joelle Maslak",
             "id" : "Joelle Maslak"
          },
          {
+            "id" : "John Barrett",
             "data" : [
                [
                   "Perl 5",
                   1
                ]
             ],
-            "id" : "John Barrett",
             "name" : "John Barrett"
          },
          {
             "name" : "Juan Caballero",
-            "id" : "Juan Caballero",
             "data" : [
                [
                   "Perl 5",
                   2
                ]
-            ]
+            ],
+            "id" : "Juan Caballero"
          },
          {
+            "name" : "Khalid",
             "data" : [
                [
                   "Perl 5",
                   2
                ]
             ],
-            "id" : "Khalid",
-            "name" : "Khalid"
+            "id" : "Khalid"
          },
          {
             "name" : "Kian-Meng Ang",
-            "id" : "Kian-Meng Ang",
             "data" : [
                [
                   "Perl 5",
@@ -377,21 +376,20 @@
                   "Blog",
                   1
                ]
-            ]
+            ],
+            "id" : "Kian-Meng Ang"
          },
          {
+            "id" : "Kivanc Yazan",
             "data" : [
                [
                   "Perl 5",
                   2
                ]
             ],
-            "id" : "Kivanc Yazan",
             "name" : "Kivanc Yazan"
          },
          {
-            "name" : "Lars Balker",
-            "id" : "Lars Balker",
             "data" : [
                [
                   "Perl 5",
@@ -401,9 +399,12 @@
                   "Perl 6",
                   2
                ]
-            ]
+            ],
+            "id" : "Lars Balker",
+            "name" : "Lars Balker"
          },
          {
+            "id" : "Laurent Rosenfeld",
             "data" : [
                [
                   "Perl 5",
@@ -418,12 +419,11 @@
                   1
                ]
             ],
-            "name" : "Laurent Rosenfeld",
-            "id" : "Laurent Rosenfeld"
+            "name" : "Laurent Rosenfeld"
          },
          {
-            "id" : "Mark Senn",
             "name" : "Mark Senn",
+            "id" : "Mark Senn",
             "data" : [
                [
                   "Perl 6",
@@ -432,28 +432,27 @@
             ]
          },
          {
+            "name" : "Martin Mugeni",
+            "id" : "Martin Mugeni",
             "data" : [
                [
                   "Perl 6",
                   2
                ]
-            ],
-            "id" : "Martin Mugeni",
-            "name" : "Martin Mugeni"
+            ]
          },
          {
+            "name" : "Neil Bowers",
             "data" : [
                [
                   "Perl 5",
                   1
                ]
             ],
-            "id" : "Neil Bowers",
-            "name" : "Neil Bowers"
+            "id" : "Neil Bowers"
          },
          {
             "name" : "Nick Logan",
-            "id" : "Nick Logan",
             "data" : [
                [
                   "Perl 5",
@@ -463,7 +462,8 @@
                   "Perl 6",
                   2
                ]
-            ]
+            ],
+            "id" : "Nick Logan"
          },
          {
             "name" : "Oleksii Tsvietnov",
@@ -476,13 +476,13 @@
             ]
          },
          {
+            "name" : "Ozzy",
             "data" : [
                [
                   "Perl 6",
                   2
                ]
             ],
-            "name" : "Ozzy",
             "id" : "Ozzy"
          },
          {
@@ -496,18 +496,16 @@
             ]
          },
          {
+            "name" : "Pete Houston",
             "data" : [
                [
                   "Perl 5",
                   2
                ]
             ],
-            "id" : "Pete Houston",
-            "name" : "Pete Houston"
+            "id" : "Pete Houston"
          },
          {
-            "name" : "Philippe Bruhat",
-            "id" : "Philippe Bruhat",
             "data" : [
                [
                   "Perl 5",
@@ -517,29 +515,32 @@
                   "Blog",
                   1
                ]
-            ]
+            ],
+            "id" : "Philippe Bruhat",
+            "name" : "Philippe Bruhat"
          },
          {
             "name" : "Prajith P",
-            "id" : "Prajith P",
             "data" : [
                [
                   "Perl 5",
                   1
                ]
-            ]
+            ],
+            "id" : "Prajith P"
          },
          {
+            "name" : "Sean Meininger",
+            "id" : "Sean Meininger",
             "data" : [
                [
                   "Perl 6",
                   2
                ]
-            ],
-            "name" : "Sean Meininger",
-            "id" : "Sean Meininger"
+            ]
          },
          {
+            "id" : "Simon Proctor",
             "data" : [
                [
                   "Perl 5",
@@ -554,21 +555,19 @@
                   2
                ]
             ],
-            "name" : "Simon Proctor",
-            "id" : "Simon Proctor"
+            "name" : "Simon Proctor"
          },
          {
+            "name" : "Simon Reinhardt",
             "data" : [
                [
                   "Perl 5",
                   2
                ]
             ],
-            "id" : "Simon Reinhardt",
-            "name" : "Simon Reinhardt"
+            "id" : "Simon Reinhardt"
          },
          {
-            "id" : "Steve Rogerson",
             "name" : "Steve Rogerson",
             "data" : [
                [
@@ -579,27 +578,28 @@
                   "Perl 6",
                   2
                ]
-            ]
+            ],
+            "id" : "Steve Rogerson"
          },
          {
+            "id" : "Steven Wilson",
             "data" : [
                [
                   "Perl 5",
                   2
                ]
             ],
-            "id" : "Steven Wilson",
             "name" : "Steven Wilson"
          },
          {
+            "id" : "Tiago Stock",
             "data" : [
                [
                   "Perl 5",
                   1
                ]
             ],
-            "name" : "Tiago Stock",
-            "id" : "Tiago Stock"
+            "name" : "Tiago Stock"
          },
          {
             "data" : [
@@ -613,17 +613,17 @@
          },
          {
             "id" : "Veesh Goldman",
-            "name" : "Veesh Goldman",
             "data" : [
                [
                   "Perl 5",
                   1
                ]
-            ]
+            ],
+            "name" : "Veesh Goldman"
          },
          {
-            "id" : "William Gilmore",
             "name" : "William Gilmore",
+            "id" : "William Gilmore",
             "data" : [
                [
                   "Perl 5",
@@ -632,8 +632,6 @@
             ]
          },
          {
-            "name" : "Yet Ebreo",
-            "id" : "Yet Ebreo",
             "data" : [
                [
                   "Perl 5",
@@ -643,38 +641,33 @@
                   "Perl 6",
                   2
                ]
-            ]
+            ],
+            "id" : "Yet Ebreo",
+            "name" : "Yet Ebreo"
          }
       ]
    },
-   "tooltip" : {
-      "headerFormat" : "<span style='font-size:11px'>{series.name}</span><br/>",
-      "followPointer" : 1,
-      "pointFormat" : "<span style='color:{point.color}'>{point.name}</span>: <b>{point.y:f}</b><br/>"
-   },
    "series" : [
       {
-         "colorByPoint" : 1,
-         "name" : "Perl Weekly Challenge - 001",
          "data" : [
             {
                "y" : 3,
-               "drilldown" : "Adam Russell",
-               "name" : "Adam Russell"
+               "name" : "Adam Russell",
+               "drilldown" : "Adam Russell"
             },
             {
-               "y" : 1,
+               "name" : "Ailbhe Tweedie",
                "drilldown" : "Ailbhe Tweedie",
-               "name" : "Ailbhe Tweedie"
+               "y" : 1
             },
             {
-               "y" : 2,
+               "name" : "Alex Daniel",
                "drilldown" : "Alex Daniel",
-               "name" : "Alex Daniel"
+               "y" : 2
             },
             {
-               "drilldown" : "Andrezgz",
                "name" : "Andrezgz",
+               "drilldown" : "Andrezgz",
                "y" : 2
             },
             {
@@ -683,19 +676,19 @@
                "drilldown" : "Antonio Gamiz"
             },
             {
-               "y" : 5,
+               "name" : "Arne Sommer",
                "drilldown" : "Arne Sommer",
-               "name" : "Arne Sommer"
+               "y" : 5
             },
             {
-               "name" : "Arpad Toth",
+               "y" : 2,
                "drilldown" : "Arpad Toth",
-               "y" : 2
+               "name" : "Arpad Toth"
             },
             {
+               "y" : 2,
                "drilldown" : "Athanasius",
-               "name" : "Athanasius",
-               "y" : 2
+               "name" : "Athanasius"
             },
             {
                "drilldown" : "Bob Kleemann",
@@ -703,29 +696,29 @@
                "y" : 2
             },
             {
-               "y" : 1,
                "name" : "Daniel Mantovani",
-               "drilldown" : "Daniel Mantovani"
+               "drilldown" : "Daniel Mantovani",
+               "y" : 1
             },
             {
+               "y" : 3,
                "name" : "Dave Cross",
-               "drilldown" : "Dave Cross",
-               "y" : 3
+               "drilldown" : "Dave Cross"
             },
             {
                "y" : 2,
-               "drilldown" : "Dave Jacoby",
-               "name" : "Dave Jacoby"
+               "name" : "Dave Jacoby",
+               "drilldown" : "Dave Jacoby"
             },
             {
-               "y" : 2,
                "drilldown" : "David Kayal",
-               "name" : "David Kayal"
+               "name" : "David Kayal",
+               "y" : 2
             },
             {
-               "y" : 2,
                "drilldown" : "Doug Schrag",
-               "name" : "Doug Schrag"
+               "name" : "Doug Schrag",
+               "y" : 2
             },
             {
                "y" : 4,
@@ -733,9 +726,9 @@
                "name" : "Dr James A. Smith"
             },
             {
-               "y" : 2,
                "drilldown" : "Duncan C. White",
-               "name" : "Duncan C. White"
+               "name" : "Duncan C. White",
+               "y" : 2
             },
             {
                "y" : 2,
@@ -743,14 +736,14 @@
                "drilldown" : "Eddy HS"
             },
             {
+               "y" : 2,
                "drilldown" : "Finley",
-               "name" : "Finley",
-               "y" : 2
+               "name" : "Finley"
             },
             {
+               "y" : 1,
                "name" : "Fred Zinn",
-               "drilldown" : "Fred Zinn",
-               "y" : 1
+               "drilldown" : "Fred Zinn"
             },
             {
                "y" : 2,
@@ -763,24 +756,24 @@
                "y" : 1
             },
             {
-               "name" : "JJ Merelo",
                "drilldown" : "JJ Merelo",
+               "name" : "JJ Merelo",
                "y" : 2
             },
             {
+               "y" : 4,
                "name" : "Jaldhar H. Vyas",
-               "drilldown" : "Jaldhar H. Vyas",
-               "y" : 4
+               "drilldown" : "Jaldhar H. Vyas"
             },
             {
+               "y" : 2,
                "name" : "Jeff",
-               "drilldown" : "Jeff",
-               "y" : 2
+               "drilldown" : "Jeff"
             },
             {
-               "drilldown" : "Jeremy Carman",
+               "y" : 2,
                "name" : "Jeremy Carman",
-               "y" : 2
+               "drilldown" : "Jeremy Carman"
             },
             {
                "y" : 1,
@@ -788,49 +781,49 @@
                "drilldown" : "Jim Bacon"
             },
             {
-               "name" : "Jo Christian Oterhals",
                "drilldown" : "Jo Christian Oterhals",
+               "name" : "Jo Christian Oterhals",
                "y" : 5
             },
             {
-               "drilldown" : "Joelle Maslak",
                "name" : "Joelle Maslak",
+               "drilldown" : "Joelle Maslak",
                "y" : 4
             },
             {
+               "y" : 1,
                "drilldown" : "John Barrett",
-               "name" : "John Barrett",
-               "y" : 1
+               "name" : "John Barrett"
             },
             {
-               "name" : "Juan Caballero",
                "drilldown" : "Juan Caballero",
+               "name" : "Juan Caballero",
                "y" : 2
             },
             {
-               "y" : 2,
+               "name" : "Khalid",
                "drilldown" : "Khalid",
-               "name" : "Khalid"
+               "y" : 2
             },
             {
-               "y" : 3,
                "name" : "Kian-Meng Ang",
-               "drilldown" : "Kian-Meng Ang"
+               "drilldown" : "Kian-Meng Ang",
+               "y" : 3
             },
             {
-               "name" : "Kivanc Yazan",
+               "y" : 2,
                "drilldown" : "Kivanc Yazan",
-               "y" : 2
+               "name" : "Kivanc Yazan"
             },
             {
-               "name" : "Lars Balker",
+               "y" : 4,
                "drilldown" : "Lars Balker",
-               "y" : 4
+               "name" : "Lars Balker"
             },
             {
+               "y" : 4,
                "drilldown" : "Laurent Rosenfeld",
-               "name" : "Laurent Rosenfeld",
-               "y" : 4
+               "name" : "Laurent Rosenfeld"
             },
             {
                "drilldown" : "Mark Senn",
@@ -848,24 +841,24 @@
                "y" : 1
             },
             {
-               "drilldown" : "Nick Logan",
+               "y" : 4,
                "name" : "Nick Logan",
-               "y" : 4
+               "drilldown" : "Nick Logan"
             },
             {
-               "name" : "Oleksii Tsvietnov",
                "drilldown" : "Oleksii Tsvietnov",
+               "name" : "Oleksii Tsvietnov",
                "y" : 2
             },
             {
-               "drilldown" : "Ozzy",
                "name" : "Ozzy",
+               "drilldown" : "Ozzy",
                "y" : 2
             },
             {
-               "drilldown" : "Pavel Jurca",
+               "y" : 2,
                "name" : "Pavel Jurca",
-               "y" : 2
+               "drilldown" : "Pavel Jurca"
             },
             {
                "name" : "Pete Houston",
@@ -883,79 +876,86 @@
                "y" : 1
             },
             {
-               "name" : "Sean Meininger",
                "drilldown" : "Sean Meininger",
+               "name" : "Sean Meininger",
                "y" : 2
             },
             {
-               "name" : "Simon Proctor",