- Added solutions by Luca Ferrari.

13 files changed, 866 insertions, 847 deletions

diff --git a/challenge-055/luca-ferrari/blog-1.txt b/challenge-055/luca-ferrari/blog1.txt
index 32654af2ad..32654af2ad 100644
--- a/challenge-055/luca-ferrari/blog-1.txt
+++ b/challenge-055/luca-ferrari/blog1.txt
diff --git a/challenge-055/luca-ferrari/blog-2.txt b/challenge-055/luca-ferrari/blog2.txt
index d50f858738..d50f858738 100644
--- a/challenge-055/luca-ferrari/blog-2.txt
+++ b/challenge-055/luca-ferrari/blog2.txt
diff --git a/stats/pwc-current.json b/stats/pwc-current.json
index fb9bdbd1b1..a6198eebfa 100644
--- a/stats/pwc-current.json
+++ b/stats/pwc-current.json
@@ -1,38 +1,46 @@
 {
-   "legend" : {
-      "enabled" : 0
+   "yAxis" : {
+      "title" : {
+         "text" : "Total Solutions"
+      }
    },
    "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/>"
+      "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/>"
    },
-   "series" : [
-      {
-         "name" : "Perl Weekly Challenge - 055",
-         "data" : [
-            {
-               "name" : "Mark Anderson",
-               "drilldown" : "Mark Anderson",
-               "y" : 1
-            },
-            {
-               "name" : "Roger Bell West",
-               "drilldown" : "Roger Bell West",
-               "y" : 3
-            },
-            {
-               "name" : "Simon Proctor",
-               "y" : 2,
-               "drilldown" : "Simon Proctor"
-            }
-         ],
-         "colorByPoint" : 1
+   "subtitle" : {
+      "text" : "[Champions: 4] Last updated at 2020-04-06 17:15:35 GMT"
+   },
+   "xAxis" : {
+      "type" : "category"
+   },
+   "plotOptions" : {
+      "series" : {
+         "dataLabels" : {
+            "format" : "{point.y}",
+            "enabled" : 1
+         },
+         "borderWidth" : 0
       }
-   ],
+   },
    "drilldown" : {
       "series" : [
          {
+            "name" : "Luca Ferrari",
+            "id" : "Luca Ferrari",
+            "data" : [
+               [
+                  "Raku",
+                  2
+               ],
+               [
+                  "Blog",
+                  2
+               ]
+            ]
+         },
+         {
             "data" : [
                [
                   "Raku",
@@ -43,6 +51,7 @@
             "name" : "Mark Anderson"
          },
          {
+            "name" : "Roger Bell West",
             "id" : "Roger Bell West",
             "data" : [
                [
@@ -53,45 +62,55 @@
                   "Raku",
                   1
                ]
-            ],
-            "name" : "Roger Bell West"
+            ]
          },
          {
-            "name" : "Simon Proctor",
             "data" : [
                [
                   "Raku",
                   2
                ]
             ],
+            "name" : "Simon Proctor",
             "id" : "Simon Proctor"
          }
       ]
    },
-   "yAxis" : {
-      "title" : {
-         "text" : "Total Solutions"
+   "series" : [
+      {
+         "colorByPoint" : 1,
+         "name" : "Perl Weekly Challenge - 055",
+         "data" : [
+            {
+               "y" : 4,
+               "name" : "Luca Ferrari",
+               "drilldown" : "Luca Ferrari"
+            },
+            {
+               "drilldown" : "Mark Anderson",
+               "name" : "Mark Anderson",
+               "y" : 1
+            },
+            {
+               "drilldown" : "Roger Bell West",
+               "y" : 3,
+               "name" : "Roger Bell West"
+            },
+            {
+               "name" : "Simon Proctor",
+               "y" : 2,
+               "drilldown" : "Simon Proctor"
+            }
+         ]
       }
+   ],
+   "legend" : {
+      "enabled" : 0
    },
    "chart" : {
       "type" : "column"
    },
-   "subtitle" : {
-      "text" : "[Champions: 3] Last updated at 2020-04-06 17:11:43 GMT"
-   },
-   "plotOptions" : {
-      "series" : {
-         "borderWidth" : 0,
-         "dataLabels" : {
-            "format" : "{point.y}",
-            "enabled" : 1
-         }
-      }
-   },
    "title" : {
       "text" : "Perl Weekly Challenge - 055"
-   },
-   "xAxis" : {
-      "type" : "category"
    }
 }
diff --git a/stats/pwc-language-breakdown-summary.json b/stats/pwc-language-breakdown-summary.json
index 02ab88f70c..d6847ceaea 100644
--- a/stats/pwc-language-breakdown-summary.json
+++ b/stats/pwc-language-breakdown-summary.json
@@ -1,26 +1,46 @@
 {
+   "xAxis" : {
+      "labels" : {
+         "style" : {
+            "fontFamily" : "Verdana, sans-serif",
+            "fontSize" : "13px"
+         }
+      },
+      "type" : "category"
+   },
+   "subtitle" : {
+      "text" : "Last updated at 2020-04-06 17:15:35 GMT"
+   },
+   "tooltip" : {
+      "pointFormat" : "<b>{point.y:.0f}</b>"
+   },
+   "yAxis" : {
+      "min" : 0,
+      "title" : {
+         "text" : null
+      }
+   },
    "legend" : {
       "enabled" : "false"
    },
    "series" : [
       {
          "dataLabels" : {
-            "color" : "#FFFFFF",
-            "format" : "{point.y:.0f}",
-            "align" : "right",
             "y" : 10,
-            "enabled" : "true",
             "rotation" : -90,
+            "align" : "right",
+            "enabled" : "true",
+            "format" : "{point.y:.0f}",
+            "color" : "#FFFFFF",
             "style" : {
-               "fontSize" : "13px",
-               "fontFamily" : "Verdana, sans-serif"
+               "fontFamily" : "Verdana, sans-serif",
+               "fontSize" : "13px"
             }
          },
-         "name" : "Contributions",
          "data" : [
             [
                "Blog",
-               597
+               599
             ],
             [
                "Perl",
@@ -28,36 +48,16 @@
             ],
             [
                "Raku",
-               1437
+               1439
             ]
-         ]
+         ],
+         "name" : "Contributions"
       }
    ],
-   "tooltip" : {
-      "pointFormat" : "<b>{point.y:.0f}</b>"
-   },
-   "yAxis" : {
-      "title" : {
-         "text" : null
-      },
-      "min" : 0
-   },
    "chart" : {
       "type" : "column"
    },
-   "subtitle" : {
-      "text" : "Last updated at 2020-04-06 17:11:43 GMT"
-   },
    "title" : {
       "text" : "Perl Weekly Challenge Contributions [2019 - 2020]"
-   },
-   "xAxis" : {
-      "type" : "category",
-      "labels" : {
-         "style" : {
-            "fontSize" : "13px",
-            "fontFamily" : "Verdana, sans-serif"
-         }
-      }
    }
 }
diff --git a/stats/pwc-language-breakdown.json b/stats/pwc-language-breakdown.json
index e055a462e6..db61961e72 100644
--- a/stats/pwc-language-breakdown.json
+++ b/stats/pwc-language-breakdown.json
@@ -1,8 +1,34 @@
 {
+   "tooltip" : {
+      "pointFormat" : "<span style=\"color:{point.color}\">Challenge {point.name}</span>: <b>{point.y:f}</b><br/>",
+      "followPointer" : "true",
+      "headerFormat" : "<span style=\"font-size:11px\"></span>"
+   },
+   "yAxis" : {
+      "title" : {
+         "text" : "Total Solutions"
+      }
+   },
+   "plotOptions" : {
+      "series" : {
+         "borderWidth" : 0,
+         "dataLabels" : {
+            "enabled" : 1,
+            "format" : "{point.y}"
+         }
+      }
+   },
+   "xAxis" : {
+      "type" : "category"
+   },
+   "subtitle" : {
+      "text" : "Click the columns to drilldown the language breakdown. Last updated at 2020-04-06 17:15:35 GMT"
+   },
    "drilldown" : {
       "series" : [
          {
             "id" : "001",
+            "name" : "001",
             "data" : [
                [
                   "Perl",
@@ -16,10 +42,11 @@
                   "Blog",
                   11
                ]
-            ],
-            "name" : "001"
+            ]
          },
          {
+            "id" : "002",
+            "name" : "002",
             "data" : [
                [
                   "Perl",
@@ -33,13 +60,9 @@
                   "Blog",
                   10
                ]
-            ],
-            "id" : "002",
-            "name" : "002"
+            ]
          },
          {
-            "name" : "003",
-            "id" : "003",
             "data" : [
                [
                   "Perl",
@@ -53,10 +76,11 @@
                   "Blog",
                   9
                ]
-            ]
+            ],
+            "name" : "003",
+            "id" : "003"
          },
          {
-            "id" : "004",
             "data" : [
                [
                   "Perl",
@@ -71,11 +95,12 @@
                   10
                ]
             ],
+            "id" : "004",
             "name" : "004"
          },
          {
-            "name" : "005",
             "id" : "005",
+            "name" : "005",
             "data" : [
                [
                   "Perl",
@@ -92,8 +117,6 @@
             ]
          },
          {
-            "name" : "006",
-            "id" : "006",
             "data" : [
                [
                   "Perl",
@@ -107,9 +130,12 @@
                   "Blog",
                   7
                ]
-            ]
+            ],
+            "id" : "006",
+            "name" : "006"
          },
          {
+            "id" : "007",
             "name" : "007",
             "data" : [
                [
@@ -124,11 +150,11 @@
                   "Blog",
                   10
                ]
-            ],
-            "id" : "007"
+            ]
          },
          {
             "id" : "008",
+            "name" : "008",
             "data" : [
                [
                   "Perl",
@@ -142,11 +168,9 @@
                   "Blog",
                   12
                ]
-            ],
-            "name" : "008"
+            ]
          },
          {
-            "id" : "009",
             "data" : [
                [
                   "Perl",
@@ -161,10 +185,10 @@
                   13
                ]
             ],
-            "name" : "009"
+            "name" : "009",
+            "id" : "009"
          },
          {
-            "id" : "010",
             "data" : [
                [
                   "Perl",
@@ -179,9 +203,11 @@
                   11
                ]
             ],
+            "id" : "010",
             "name" : "010"
          },
          {
+            "name" : "011",
             "id" : "011",
             "data" : [
                [
@@ -196,8 +222,7 @@
                   "Blog",
                   10
                ]
-            ],
-            "name" : "011"
+            ]
          },
          {
             "data" : [
@@ -214,11 +239,10 @@
                   11
                ]
             ],
-            "id" : "012",
-            "name" : "012"
+            "name" : "012",
+            "id" : "012"
          },
          {
-            "id" : "013",
             "data" : [
                [
                   "Perl",
@@ -233,10 +257,10 @@
                   13
                ]
             ],
+            "id" : "013",
             "name" : "013"
          },
          {
-            "name" : "014",
             "data" : [
                [
                   "Perl",
@@ -251,9 +275,11 @@
                   15
                ]
             ],
+            "name" : "014",
             "id" : "014"
          },
          {
+            "id" : "015",
             "name" : "015",
             "data" : [
                [
@@ -268,11 +294,11 @@
                   "Blog",
                   15
                ]
-            ],
-            "id" : "015"
+            ]
          },
          {
             "name" : "016",
+            "id" : "016",
             "data" : [
                [
                   "Perl",
@@ -286,11 +312,9 @@
                   "Blog",
                   12
                ]
-            ],
-            "id" : "016"
+            ]
          },
          {
-            "name" : "017",
             "data" : [
                [
                   "Perl",
@@ -305,10 +329,12 @@
                   12
                ]
             ],
-            "id" : "017"
+            "id" : "017",
+            "name" : "017"
          },
          {
             "id" : "018",
+            "name" : "018",
             "data" : [
                [
                   "Perl",
@@ -322,10 +348,11 @@
                   "Blog",
                   14
                ]
-            ],
-            "name" : "018"
+            ]
          },
          {
+            "name" : "019",
+            "id" : "019",
             "data" : [
                [
                   "Perl",
@@ -339,12 +366,9 @@
                   "Blog",
                   13
                ]
-            ],
-            "id" : "019",
-            "name" : "019"
+            ]
          },
          {
-            "id" : "020",
             "data" : [
                [
                   "Perl",
@@ -359,9 +383,11 @@
                   13
                ]
             ],
+            "id" : "020",
             "name" : "020"
          },
          {
+            "name" : "021",
             "id" : "021",
             "data" : [
                [
@@ -376,11 +402,9 @@
                   "Blog",
                   10
                ]
-            ],
-            "name" : "021"
+            ]
          },
          {
-            "name" : "022",
             "data" : [
                [
                   "Perl",
@@ -395,10 +419,10 @@
                   10
                ]
             ],
+            "name" : "022",
             "id" : "022"
          },
          {
-            "id" : "023",
             "data" : [
                [
                   "Perl",
@@ -413,9 +437,12 @@
                   12
                ]
             ],
-            "name" : "023"
+            "name" : "023",
+            "id" : "023"
          },
          {
+            "name" : "024",
+            "id" : "024",
             "data" : [
                [
                   "Perl",
@@ -429,11 +456,11 @@
                   "Blog",
                   11
                ]
-            ],
-            "id" : "024",
-            "name" : "024"
+            ]
          },
          {
+            "id" : "025",
+            "name" : "025",
             "data" : [
                [
                   "Perl",
@@ -447,9 +474,7 @@
                   "Blog",
                   12
                ]
-            ],
-            "id" : "025",
-            "name" : "025"
+            ]
          },
          {
             "name" : "026",
@@ -470,6 +495,8 @@
             ]
          },
          {
+            "name" : "027",
+            "id" : "027",
             "data" : [
                [
                   "Perl",
@@ -483,13 +510,9 @@
                   "Blog",
                   9
                ]
-            ],
-            "id" : "027",
-            "name" : "027"
+            ]
          },
          {
-            "name" : "028",
-            "id" : "028",
             "data" : [
                [
                   "Perl",
@@ -503,9 +526,13 @@
                   "Blog",
                   9
                ]
-            ]
+            ],
+            "id" : "028",
+            "name" : "028"
          },
          {
+            "name" : "029",
+            "id" : "029",
             "data" : [
                [
                   "Perl",
@@ -519,12 +546,11 @@
                   "Blog",
                   12
                ]
-            ],
-            "id" : "029",
-            "name" : "029"
+            ]
          },
          {
             "name" : "030",
+            "id" : "030",
             "data" : [
                [
                   "Perl",
@@ -538,12 +564,9 @@
                   "Blog",
                   10
                ]
-            ],
-            "id" : "030"
+            ]
          },
          {
-            "name" : "031",
-            "id" : "031",
             "data" : [
                [
                   "Perl",
@@ -557,7 +580,9 @@
                   "Blog",
                   9
                ]
-            ]
+            ],
+            "id" : "031",
+            "name" : "031"
          },
          {
             "data" : [
@@ -574,10 +599,11 @@
                   10
                ]
             ],
-            "id" : "032",
-            "name" : "032"
+            "name" : "032",
+            "id" : "032"
          },
          {
+            "id" : "033",
             "name" : "033",
             "data" : [
                [
@@ -592,11 +618,9 @@
                   "Blog",
                   10
                ]
-            ],
-            "id" : "033"
+            ]
          },
          {
-            "name" : "034",
             "data" : [
                [
                   "Perl",
@@ -611,11 +635,12 @@
                   11
                ]
             ],
+            "name" : "034",
             "id" : "034"
          },
          {
-            "name" : "035",
             "id" : "035",
+            "name" : "035",
             "data" : [
                [
                   "Perl",
@@ -632,6 +657,7 @@
             ]
          },
          {
+            "name" : "036",
             "id" : "036",
             "data" : [
                [
@@ -646,11 +672,11 @@
                   "Blog",
                   11
                ]
-            ],
-            "name" : "036"
+            ]
          },
          {
             "name" : "037",
+            "id" : "037",
             "data" : [
                [
                   "Perl",
@@ -664,8 +690,7 @@
                   "Blog",
                   9
                ]
-            ],
-            "id" : "037"
+            ]
          },
          {
             "data" : [
@@ -686,7 +711,6 @@
             "name" : "038"
          },
          {
-            "id" : "039",
             "data" : [
                [
                   "Perl",
@@ -701,6 +725,7 @@
                   12
                ]
             ],
+            "id" : "039",
             "name" : "039"
          },
          {
@@ -740,6 +765,7 @@
             ]
          },
          {
+            "id" : "042",
             "name" : "042",
             "data" : [
                [
@@ -754,11 +780,11 @@
                   "Blog",
                   11
                ]
-            ],
-            "id" : "042"
+            ]
          },
          {
             "name" : "043",
+            "id" : "043",
             "data" : [
                [
                   "Perl",
@@ -772,11 +798,9 @@
                   "Blog",
                   10
                ]
-            ],
-            "id" : "043"
+            ]
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-            "name" : "044",
             "data" : [
                [
                   "Perl",
@@ -791,9 +815,12 @@
                   10
                ]
             ],
-            "id" : "044"
+            "id" : "044",
+            "name" : "044"
          },
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+            "name" : "045",
+            "id" : "045",
             "data" : [
                [
                   "Perl",
@@ -807,11 +834,10 @@
                   "Blog",
                   11
                ]
-            ],
-            "id" : "045",
-            "name" : "045"
+            ]
          },
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+            "name" : "046",
             "id" : "046",
             "data" : [
                [
@@ -826,10 +852,10 @@
                   "Blog",
                   10
                ]
-            ],
-            "name" : "046"
+            ]
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             "name" : "047",
             "data" : [
                [
@@ -844,11 +870,11 @@
                   "Blog",
                   10
                ]
-            ],
-            "id" : "047"
+            ]
          },
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             "id" : "048",
+            "name" : "048",
             "data" : [
                [
                   "Perl",
@@ -862,12 +888,9 @@
                   "Blog",
                   12
                ]
-            ],
-            "name" : "048"
+            ]
          },
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-            "name" : "049",
-            "id" : "049",
             "data" : [
                [
                   "Perl",
@@ -881,10 +904,13 @@
                   "Blog",
                   12
                ]
-            ]
+            ],
+            "name" : "049",
+            "id" : "049"
          },
          {
             "name" : "050",
+            "id" : "050",
             "data" : [
                [
                   "Perl",
@@ -898,11 +924,11 @@
                   "Blog",
                   12
                ]
-            ],
-            "id" : "050"
+            ]
          },
          {
             "id" : "051",
+            "name" : "051",
             "data" : [
                [
                   "Perl",
@@ -916,11 +942,9 @@
                   "Blog",
                   10
                ]
-            ],
-            "name" : "051"
+            ]
          },
          {
-            "id" : "052",
             "data" : [
                [
                   "Perl",
@@ -935,11 +959,10 @@
                   13
                ]
             ],
+            "id" : "052",
             "name" : "052"
          },
          {
-            "name" : "053",
-            "id" : "053",
             "data" : [
                [
                   "Perl",
@@ -953,7 +976,9 @@
                   "Blog",
                   14
                ]
-            ]
+            ],
+            "id" : "053",
+            "name" : "053"
          },
          {
             "data" : [
@@ -970,11 +995,10 @@
                   12
                ]
             ],
-            "id" : "054",
-            "name" : "054"
+            "name" : "054",
+            "id" : "054"
          },
          {
-            "name" : "055",
             "data" : [
                [
                   "Perl",
@@ -982,129 +1006,131 @@
                ],
                [
                   "Raku",
-                  4
+                  6
                ],
                [
                   "Blog",
-                  0
+                  2
                ]
             ],
-            "id" : "055"
+            "id" : "055",
+            "name" : "055"
          }
       ]
    },
    "series" : [
       {
+         "colorByPoint" : "true",
          "data" : [
             {
                "y" : 140,
-               "drilldown" : "001",
-               "name" : "#001"
+               "name" : "#001",
+               "drilldown" : "001"
             },
             {
-               "drilldown" : "002",
+               "name" : "#002",
                "y" : 109,
-               "name" : "#002"
+               "drilldown" : "002"
             },
             {
-               "y" : 71,
                "drilldown" : "003",
+               "y" : 71,
                "name" : "#003"
             },
             {
-               "name" : "#004",
+               "drilldown" : "004",
                "y" : 91,
-               "drilldown" : "004"
+               "name" : "#004"
             },
             {
-               "name" : "#005",
                "y" : 71,
+               "name" : "#005",
                "drilldown" : "005"
             },
             {
+               "y" : 52,
                "name" : "#006",
-               "drilldown" : "006",
-               "y" : 52
+               "drilldown" : "006"
             },
             {
-               "name" : "#007",
                "drilldown" : "007",
-               "y" : 58
+               "y" : 58,
+               "name" : "#007"
             },
             {
-               "name" : "#008",
                "drilldown" : "008",
-               "y" : 70
+               "y" : 70,
+               "name" : "#008"
             },
             {
+               "y" : 68,
                "name" : "#009",
-               "drilldown" : "009",
-               "y" : 68
+               "drilldown" : "009"
             },
             {
-               "drilldown" : "010",
                "y" : 60,
-               "name" : "#010"
+               "name" : "#010",
+               "drilldown" : "010"
             },
             {
-               "drilldown" : "011",
                "y" : 79,
-               "name" : "#011"
+               "name" : "#011",
+               "drilldown" : "011"
             },
             {
-               "y" : 83,
                "drilldown" : "012",
-               "name" : "#012"
+               "name" : "#012",
+               "y" : 83
             },
             {
                "y" : 76,
-               "drilldown" : "013",
-               "name" : "#013"
+               "name" : "#013",
+               "drilldown" : "013"
             },
             {
-               "name" : "#014",
                "y" : 96,
+               "name" : "#014",
                "drilldown" : "014"
             },
             {
                "name" : "#015",
-               "drilldown" : "015",
-               "y" : 93
+               "y" : 93,
+               "drilldown" : "015"
             },
             {
-               "y" : 66,
                "drilldown" : "016",
-               "name" : "#016"
+               "name" : "#016",
+               "y" : 66
             },
             {
+               "drilldown" : "017",
                "name" : "#017",
-               "y" : 79,
-               "drilldown" : "017"
+               "y" : 79
             },
             {
-               "name" : "#018",
+               "drilldown" : "018",
                "y" : 76,
-               "drilldown" : "018"
+               "name" : "#018"
             },
             {
+               "name" : "#019",
                "y" : 97,
-               "drilldown" : "019",
-               "name" : "#019"
+               "drilldown" : "019"
             },
             {
-               "name" : "#020",
                "y" : 95,
+               "name" : "#020",
                "drilldown" : "020"
             },
             {
-               "drilldown" : "021",
                "y" : 67,
-               "name" : "#021"
+               "name" : "#021",
+               "drilldown" : "021"
             },