- Added solutions by Markus Holzer.

12 files changed, 803 insertions, 788 deletions

diff --git a/challenge-031/markus-holzer/perl6/ch-1.pl6 b/challenge-031/markus-holzer/perl6/ch-1.p6
index 5529eeb0b3..5529eeb0b3 100644
--- a/challenge-031/markus-holzer/perl6/ch-1.pl6
+++ b/challenge-031/markus-holzer/perl6/ch-1.p6
diff --git a/challenge-031/markus-holzer/perl6/ch-2.pl6 b/challenge-031/markus-holzer/perl6/ch-2.p6
index c78e77b461..c78e77b461 100644
--- a/challenge-031/markus-holzer/perl6/ch-2.pl6
+++ b/challenge-031/markus-holzer/perl6/ch-2.p6
diff --git a/stats/pwc-current.json b/stats/pwc-current.json
index 322bade5ed..d1f30ac1e8 100644
--- a/stats/pwc-current.json
+++ b/stats/pwc-current.json
@@ -1,36 +1,47 @@
 {
-   "xAxis" : {
-      "type" : "category"
-   },
-   "yAxis" : {
-      "title" : {
-         "text" : "Total Solutions"
+   "plotOptions" : {
+      "series" : {
+         "dataLabels" : {
+            "format" : "{point.y}",
+            "enabled" : 1
+         },
+         "borderWidth" : 0
       }
    },
-   "title" : {
-      "text" : "Perl Weekly Challenge - 031"
+   "chart" : {
+      "type" : "column"
    },
    "drilldown" : {
       "series" : [
          {
+            "name" : "Dave Cross",
             "data" : [
                [
                   "Perl 5",
                   2
                ]
             ],
-            "id" : "Dave Cross",
-            "name" : "Dave Cross"
+            "id" : "Dave Cross"
          },
          {
-            "name" : "Duane Powell",
             "id" : "Duane Powell",
             "data" : [
                [
                   "Perl 5",
                   2
                ]
-            ]
+            ],
+            "name" : "Duane Powell"
+         },
+         {
+            "name" : "Markus Holzer",
+            "data" : [
+               [
+                  "Perl 6",
+                  2
+               ]
+            ],
+            "id" : "Markus Holzer"
          },
          {
             "id" : "Maxim Kolodyazhny",
@@ -43,14 +54,14 @@
             "name" : "Maxim Kolodyazhny"
          },
          {
-            "name" : "Pete Houston",
-            "id" : "Pete Houston",
             "data" : [
                [
                   "Perl 5",
                   1
                ]
-            ]
+            ],
+            "id" : "Pete Houston",
+            "name" : "Pete Houston"
          },
          {
             "data" : [
@@ -63,35 +74,34 @@
             "name" : "Simon Proctor"
          },
          {
-            "name" : "Yet Ebreo",
             "id" : "Yet Ebreo",
             "data" : [
                [
                   "Perl 5",
                   2
                ]
-            ]
+            ],
+            "name" : "Yet Ebreo"
          }
       ]
    },
-   "chart" : {
-      "type" : "column"
-   },
    "subtitle" : {
-      "text" : "[Champions: 6] Last updated at 2019-10-21 17:26:10 GMT"
+      "text" : "[Champions: 7] Last updated at 2019-10-22 10:18:13 GMT"
    },
-   "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/>"
+   "xAxis" : {
+      "type" : "category"
+   },
+   "title" : {
+      "text" : "Perl Weekly Challenge - 031"
    },
    "series" : [
       {
+         "name" : "Perl Weekly Challenge - 031",
          "colorByPoint" : 1,
          "data" : [
             {
-               "name" : "Dave Cross",
                "y" : 2,
+               "name" : "Dave Cross",
                "drilldown" : "Dave Cross"
             },
             {
@@ -100,39 +110,44 @@
                "y" : 2
             },
             {
+               "y" : 2,
+               "name" : "Markus Holzer",
+               "drilldown" : "Markus Holzer"
+            },
+            {
                "y" : 1,
-               "name" : "Maxim Kolodyazhny",
-               "drilldown" : "Maxim Kolodyazhny"
+               "drilldown" : "Maxim Kolodyazhny",
+               "name" : "Maxim Kolodyazhny"
             },
             {
-               "name" : "Pete Houston",
                "y" : 1,
+               "name" : "Pete Houston",
                "drilldown" : "Pete Houston"
             },
             {
                "name" : "Simon Proctor",
-               "y" : 1,
-               "drilldown" : "Simon Proctor"
+               "drilldown" : "Simon Proctor",
+               "y" : 1
             },
             {
-               "name" : "Yet Ebreo",
                "y" : 2,
+               "name" : "Yet Ebreo",
                "drilldown" : "Yet Ebreo"
             }
-         ],
-         "name" : "Perl Weekly Challenge - 031"
+         ]
       }
    ],
-   "legend" : {
-      "enabled" : 0
+   "tooltip" : {
+      "followPointer" : 1,
+      "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/>"
    },
-   "plotOptions" : {
-      "series" : {
-         "dataLabels" : {
-            "format" : "{point.y}",
-            "enabled" : 1
-         },
-         "borderWidth" : 0
+   "yAxis" : {
+      "title" : {
+         "text" : "Total Solutions"
       }
+   },
+   "legend" : {
+      "enabled" : 0
    }
 }
diff --git a/stats/pwc-language-breakdown-summary.json b/stats/pwc-language-breakdown-summary.json
index 12879cee31..c5b497184c 100644
--- a/stats/pwc-language-breakdown-summary.json
+++ b/stats/pwc-language-breakdown-summary.json
@@ -1,34 +1,37 @@
 {
+   "xAxis" : {
+      "type" : "category",
+      "labels" : {
+         "style" : {
+            "fontSize" : "13px",
+            "fontFamily" : "Verdana, sans-serif"
+         }
+      }
+   },
    "title" : {
       "text" : "Perl Weekly Challenge Contributions - 2019"
    },
-   "yAxis" : {
-      "min" : 0,
-      "title" : {
-         "text" : null
-      }
-   },
-   "legend" : {
-      "enabled" : "false"
+   "tooltip" : {
+      "pointFormat" : "<b>{point.y:.0f}</b>"
    },
    "chart" : {
       "type" : "column"
    },
    "series" : [
       {
-         "name" : "Contributions",
          "dataLabels" : {
             "enabled" : "true",
-            "rotation" : -90,
-            "format" : "{point.y:.0f}",
-            "y" : 10,
-            "color" : "#FFFFFF",
             "align" : "right",
+            "y" : 10,
             "style" : {
                "fontSize" : "13px",
                "fontFamily" : "Verdana, sans-serif"
-            }
+            },
+            "color" : "#FFFFFF",
+            "format" : "{point.y:.0f}",
+            "rotation" : -90
          },
+         "name" : "Contributions",
          "data" : [
             [
                "Blog",
@@ -40,24 +43,21 @@
             ],
             [
                "Perl 6",
-               751
+               753
             ]
          ]
       }
    ],
-   "xAxis" : {
-      "type" : "category",
-      "labels" : {
-         "style" : {
-            "fontFamily" : "Verdana, sans-serif",
-            "fontSize" : "13px"
-         }
-      }
+   "subtitle" : {
+      "text" : "Last updated at 2019-10-22 10:18:20 GMT"
    },
-   "tooltip" : {
-      "pointFormat" : "<b>{point.y:.0f}</b>"
+   "legend" : {
+      "enabled" : "false"
    },
-   "subtitle" : {
-      "text" : "Last updated at 2019-10-21 17:26:17 GMT"
+   "yAxis" : {
+      "title" : {
+         "text" : null
+      },
+      "min" : 0
    }
 }
diff --git a/stats/pwc-language-breakdown.json b/stats/pwc-language-breakdown.json
index 3525c7af4a..bd89f3f711 100644
--- a/stats/pwc-language-breakdown.json
+++ b/stats/pwc-language-breakdown.json
@@ -1,33 +1,22 @@
 {
-   "legend" : {
-      "enabled" : "false"
-   },
    "yAxis" : {
       "title" : {
          "text" : "Total Solutions"
       }
    },
-   "title" : {
-      "text" : "Perl Weekly Challenge Language"
-   },
-   "plotOptions" : {
-      "series" : {
-         "borderWidth" : 0,
-         "dataLabels" : {
-            "enabled" : 1,
-            "format" : "{point.y}"
-         }
-      }
+   "legend" : {
+      "enabled" : "false"
    },
-   "chart" : {
-      "type" : "column"
+   "subtitle" : {
+      "text" : "Click the columns to drilldown the language breakdown. Last updated at 2019-10-22 10:18:20 GMT"
    },
    "series" : [
       {
+         "colorByPoint" : "true",
          "data" : [
             {
-               "drilldown" : "001",
                "name" : "#001",
+               "drilldown" : "001",
                "y" : 132
             },
             {
@@ -36,19 +25,19 @@
                "name" : "#002"
             },
             {
-               "y" : 66,
                "name" : "#003",
+               "y" : 66,
                "drilldown" : "003"
             },
             {
+               "name" : "#004",
                "drilldown" : "004",
-               "y" : 86,
-               "name" : "#004"
+               "y" : 86
             },
             {
-               "drilldown" : "005",
                "name" : "#005",
-               "y" : 66
+               "y" : 66,
+               "drilldown" : "005"
             },
             {
                "name" : "#006",
@@ -56,29 +45,29 @@
                "drilldown" : "006"
             },
             {
-               "y" : 56,
                "name" : "#007",
+               "y" : 56,
                "drilldown" : "007"
             },
             {
                "name" : "#008",
-               "y" : 70,
-               "drilldown" : "008"
+               "drilldown" : "008",
+               "y" : 70
             },
             {
-               "drilldown" : "009",
                "y" : 68,
+               "drilldown" : "009",
                "name" : "#009"
             },
             {
-               "name" : "#010",
                "y" : 60,
-               "drilldown" : "010"
+               "drilldown" : "010",
+               "name" : "#010"
             },
             {
-               "drilldown" : "011",
+               "name" : "#011",
                "y" : 78,
-               "name" : "#011"
+               "drilldown" : "011"
             },
             {
                "name" : "#012",
@@ -86,44 +75,44 @@
                "drilldown" : "012"
             },
             {
+               "y" : 76,
                "drilldown" : "013",
-               "name" : "#013",
-               "y" : 76
+               "name" : "#013"
             },
             {
                "name" : "#014",
-               "y" : 95,
-               "drilldown" : "014"
+               "drilldown" : "014",
+               "y" : 95
             },
             {
+               "drilldown" : "015",
                "y" : 93,
-               "name" : "#015",
-               "drilldown" : "015"
+               "name" : "#015"
             },
             {
                "name" : "#016",
-               "y" : 66,
-               "drilldown" : "016"
+               "drilldown" : "016",
+               "y" : 66
             },
             {
                "name" : "#017",
-               "y" : 79,
-               "drilldown" : "017"
+               "drilldown" : "017",
+               "y" : 79
             },
             {
-               "name" : "#018",
+               "drilldown" : "018",
                "y" : 76,
-               "drilldown" : "018"
+               "name" : "#018"
             },
             {
-               "name" : "#019",
+               "drilldown" : "019",
                "y" : 95,
-               "drilldown" : "019"
+               "name" : "#019"
             },
             {
                "name" : "#020",
-               "y" : 95,
-               "drilldown" : "020"
+               "drilldown" : "020",
+               "y" : 95
             },
             {
                "drilldown" : "021",
@@ -131,29 +120,29 @@
                "name" : "#021"
             },
             {
-               "drilldown" : "022",
                "name" : "#022",
-               "y" : 63
+               "y" : 63,
+               "drilldown" : "022"
             },
             {
-               "name" : "#023",
+               "drilldown" : "023",
                "y" : 91,
-               "drilldown" : "023"
+               "name" : "#023"
             },
             {
                "name" : "#024",
-               "y" : 70,
-               "drilldown" : "024"
+               "drilldown" : "024",
+               "y" : 70
             },
             {
-               "name" : "#025",
+               "drilldown" : "025",
                "y" : 55,
-               "drilldown" : "025"
+               "name" : "#025"
             },
             {
+               "y" : 70,
                "drilldown" : "026",
-               "name" : "#026",
-               "y" : 70
+               "name" : "#026"
             },
             {
                "drilldown" : "027",
@@ -161,30 +150,38 @@
                "name" : "#027"
             },
             {
+               "drilldown" : "028",
                "y" : 78,
-               "name" : "#028",
-               "drilldown" : "028"
+               "name" : "#028"
             },
             {
-               "name" : "#029",
                "y" : 76,
-               "drilldown" : "029"
+               "drilldown" : "029",
+               "name" : "#029"
             },
             {
-               "y" : 112,
                "name" : "#030",
-               "drilldown" : "030"
+               "drilldown" : "030",
+               "y" : 112
             },
             {
+               "y" : 11,
                "drilldown" : "031",
-               "y" : 9,
                "name" : "#031"
             }
          ],
-         "name" : "Perl Weekly Challenge Languages",
-         "colorByPoint" : "true"
+         "name" : "Perl Weekly Challenge Languages"
       }
    ],
+   "plotOptions" : {
+      "series" : {
+         "dataLabels" : {
+            "enabled" : 1,
+            "format" : "{point.y}"
+         },
+         "borderWidth" : 0
+      }
+   },
    "drilldown" : {
       "series" : [
          {
@@ -224,8 +221,6 @@
             ]
          },
          {
-            "id" : "003",
-            "name" : "003",
             "data" : [
                [
                   "Perl 5",
@@ -239,9 +234,13 @@
                   "Blog",
                   8
                ]
-            ]
+            ],
+            "name" : "003",
+            "id" : "003"
          },
          {
+            "id" : "004",
+            "name" : "004",
             "data" : [
                [
                   "Perl 5",
@@ -255,11 +254,10 @@
                   "Blog",
                   9
                ]
-            ],
-            "name" : "004",
-            "id" : "004"
+            ]
          },
          {
+            "id" : "005",
             "data" : [
                [
                   "Perl 5",
@@ -274,12 +272,9 @@
                   11
                ]
             ],
-            "name" : "005",
-            "id" : "005"
+            "name" : "005"
          },
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-            "name" : "006",
-            "id" : "006",
             "data" : [
                [
                   "Perl 5",
@@ -293,9 +288,12 @@
                   "Blog",
                   7
                ]
-            ]
+            ],
+            "name" : "006",
+            "id" : "006"
          },
          {
+            "id" : "007",
             "data" : [
                [
                   "Perl 5",
@@ -310,8 +308,7 @@
                   10
                ]
             ],
-            "name" : "007",
-            "id" : "007"
+            "name" : "007"
          },
          {
             "id" : "008",
@@ -332,6 +329,7 @@
             ]
          },
          {
+            "name" : "009",
             "data" : [
                [
                   "Perl 5",
@@ -346,7 +344,6 @@
                   13
                ]
             ],
-            "name" : "009",
             "id" : "009"
          },
          {
@@ -364,10 +361,12 @@
                   11
                ]
             ],
-            "id" : "010",
-            "name" : "010"
+            "name" : "010",
+            "id" : "010"
          },
          {
+            "id" : "011",
+            "name" : "011",
             "data" : [
                [
                   "Perl 5",
@@ -381,13 +380,11 @@
                   "Blog",
                   9
                ]
-            ],
-            "name" : "011",
-            "id" : "011"
+            ]
          },
          {
-            "name" : "012",
             "id" : "012",
+            "name" : "012",
             "data" : [
                [
                   "Perl 5",
@@ -404,7 +401,6 @@
             ]
          },
          {
-            "name" : "013",
             "id" : "013",
             "data" : [
                [
@@ -419,11 +415,10 @@
                   "Blog",
                   13
                ]
-            ]
+            ],
+            "name" : "013"
          },
          {
-            "id" : "014",
-            "name" : "014",
             "data" : [
                [
                   "Perl 5",
@@ -437,10 +432,11 @@
                   "Blog",
                   14
                ]
-            ]
+            ],
+            "name" : "014",
+            "id" : "014"
          },
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-            "name" : "015",
             "id" : "015",
             "data" : [
                [
@@ -455,7 +451,8 @@
                   "Blog",
                   15
                ]
-            ]
+            ],
+            "name" : "015"
          },
          {
             "id" : "016",
@@ -476,7 +473,6 @@
             ]
          },
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-            "id" : "017",
             "name" : "017",
             "data" : [
                [
@@ -491,9 +487,12 @@
                   "Blog",
                   12
                ]
-            ]
+            ],
+            "id" : "017"
          },
          {
+            "id" : "018",
+            "name" : "018",
             "data" : [
                [
                   "Perl 5",
@@ -507,13 +506,11 @@
                   "Blog",
                   14
                ]
-            ],
-            "id" : "018",
-            "name" : "018"
+            ]
          },
          {
-            "name" : "019",
             "id" : "019",
+            "name" : "019",
             "data" : [
                [
                   "Perl 5",
@@ -530,6 +527,7 @@
             ]
          },
          {
+            "id" : "020",
             "data" : [
                [
                   "Perl 5",
@@ -544,8 +542,7 @@
                   13
                ]
             ],
-            "name" : "020",
-            "id" : "020"
+            "name" : "020"
          },
          {
             "id" : "021",
@@ -584,6 +581,8 @@
             ]
          },
          {
+            "id" : "023",
+            "name" : "023",
             "data" : [
                [
                   "Perl 5",
@@ -597,13 +596,9 @@
                   "Blog",
                   12
                ]
-            ],
-            "name" : "023",
-            "id" : "023"
+            ]
          },
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-            "id" : "024",
-            "name" : "024",
             "data" : [
                [
                   "Perl 5",
@@ -617,9 +612,12 @@
                   "Blog",
                   11
                ]
-            ]
+            ],
+            "name" : "024",
+            "id" : "024"
          },
          {
+            "id" : "025",
             "data" : [
                [
                   "Perl 5",
@@ -634,7 +632,6 @@
                   12
                ]
             ],
-            "id" : "025",
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          },
          {
@@ -652,8 +649,8 @@
                   10
                ]
             ],
-            "id" : "026",
-            "name" : "026"
+            "name" : "026",
+            "id" : "026"
          },
          {
             "data" : [
@@ -674,7 +671,6 @@
             "id" : "027"
          },
          {
-            "name" : "028",
             "id" : "028",
             "data" : [
                [
@@ -689,9 +685,12 @@
                   "Blog",
                   9
                ]
-            ]
+            ],
+            "name" : "028"
          },
          {
+            "id" : "029",
+            "name" : "029",
             "data" : [
                [
                   "Perl 5",
@@ -705,13 +704,11 @@
                   "Blog",
                   11
                ]
-            ],
-            "id" : "029",
-            "name" : "029"
+            ]
          },
          {
-            "name" : "030",
             "id" : "030",
+            "name" : "030",
             "data" : [
                [
                   "Perl 5",
@@ -729,7 +726,6 @@
          },
          {
             "name" : "031",
-            "id" : "031",
             "data" : [
                [
                   "Perl 5",
@@ -737,24 +733,28 @@
                ],
                [
                   "Perl 6",
-                  1
+                  3
                ],
                [
                   "Blog",
                   0
                ]
-            ]
+            ],
+            "id" : "031"
          }
       ]
    },
-   "subtitle" : {
-      "text" : "Click the columns to drilldown the language breakdown. Last updated at 2019-10-21 17:26:17 GMT"
+   "chart" : {
+      "type" : "column"
    },
    "tooltip" : {
       "followPointer" : "true",
       "pointFormat" : "<span style=\"color:{point.color}\">Challenge {point.name}</span>: <b>{point.y:f}</b><br/>",
       "headerFormat" : "<span style=\"font-size:11px\"></span>"
    },
+   "title" : {
+      "text" : "Perl Weekly Challenge Language"
+   },
    "xAxis" : {
       "type" : "category"
    }
diff --git a/stats/pwc-leaders.json b/stats/pwc-leaders.json
index 9f5ab37171..55638fab42 100644
--- a/stats/pwc-leaders.json
+++ b/stats/pwc-leaders.json
@@ -1,17 +1,26 @@
 {
-   "title" : {
-      "text" : "Perl Weekly Challenge Leaders (TOP 50)"
+   "subtitle" : {
+      "text" : "Click the columns to drilldown the score breakdown. Last updated at 2019-10-22 10:18:17 GMT"
+   },
+   "tooltip" : {
+      "followPointer" : "true",
+      "pointFormat" : "<span style=\"color:{point.color}\">{point.name}</span>: <b>{point.y:f}</b><br/>",
+      "headerFormat" : "<span style=\"font-size:11px\"></span>"
+   },
+   "legend" : {
+      "enabled" : "false"
    },
    "drilldown" : {
       "series" : [
          {
+            "name" : "Laurent Rosenfeld",
             "data" : [
                [
-                  "Perl 6",
+                  "Perl 5",
                   59
                ],
                [
-                  "Perl 5",
+                  "Perl 6",
                   59
                ],
                [
@@ -19,80 +28,79 @@
                   69
                ]
             ],
-            "id" : "Laurent Rosenfeld",
-            "name" : "Laurent Rosenfeld"
+            "id" : "Laurent Rosenfeld"
          },
          {
             "data" : [
                [
-                  "Perl 5",
-                  74
-               ],
-               [
                   "Perl 6",
                   74
                ],
                [
                   "Blog",
                   5
+               ],
+               [
+                  "Perl 5",
+                  74
                ]
             ],
-            "id" : "Joelle Maslak",
-            "name" : "Joelle Maslak"
+            "name" : "Joelle Maslak",
+            "id" : "Joelle Maslak"
          },
          {
             "name" : "Jaldhar H. Vyas",
             "data" : [
                [
+                  "Perl 6",
+                  59
+               ],
+               [
                   "Blog",
                   17
                ],
                [
                   "Perl 5",
                   60
-               ],
-               [
-                  "Perl 6",
-                  59
                ]
             ],
             "id" : "Jaldhar H. Vyas"
          },
          {
-            "name" : "Ruben Westerberg",
             "id" : "Ruben Westerberg",
+            "name" : "Ruben Westerberg",
             "data" : [
                [
-                  "Perl 6",
+                  "Perl 5",
                   57
                ],
                [
-                  "Perl 5",
+                  "Perl 6",
                   57
                ]
             ]
          },
          {
-            "name" : "Adam Russell",
+            "id" : "Adam Russell",
             "data" : [
                [
-                  "Perl 6",
-                  3
-               ],
-               [
                   "Perl 5",
                   61
                ],
                [
+                  "Perl 6",
+                  3
+               ],
+               [
                   "Blog",
                   33
                ]
             ],
-            "id" : "Adam Russell"
+            "name" : "Adam Russell"
          },
          {
-            "name" : "Arne Sommer",
             "id" : "Arne Sommer",
+            "name" : "Arne Sommer",
             "data" : [
                [
                   "Perl 5",
@@ -109,25 +117,25 @@
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          },
          {
-            "name" : "Athanasius",
             "id" : "Athanasius",
             "data" : [
                [
-                  "Blog",
-                  3
-               ],
-               [
                   "Perl 5",
                   57
                ],
                [
                   "Perl 6",
                   32
+               ],
+               [
+                  "Blog",
+                  3
                ]
-            ]
+            ],
+            "name" : "Athanasius"
          },
          {
-            "id" : "E. Choroba",
+            "name" : "E. Choroba",
             "data" : [
                [
                   "Perl 5",
@@ -138,67 +146,67 @@
                   25
                ]
             ],
-            "name" : "E. Choroba"
+            "id" : "E. Choroba"
          },
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-            "id" : "Kian-Meng Ang",
             "data" : [
                [
-                  "Blog",
-                  33
-               ],
-               [
                   "Perl 5",
                   38
+               ],
+               [
+                  "Blog",
+                  33
                ]
             ],
-            "name" : "Kian-Meng Ang"
+            "name" : "Kian-Meng Ang",
+            "id" : "Kian-Meng Ang"
          },
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+            "id" : "Roger Bell West",
             "data" : [
                [
+                  "Perl 6",
+                  15
+               ],
+               [
                   "Blog",
                   14
                ],
                [
                   "Perl 5",
                   34
-               ],
-               [
-                  "Perl 6",
-                  15
                ]
             ],
-            "id" : "Roger Bell West",
             "name" : "Roger Bell West"
          },