- Added solutions by Luca Ferrari.

12 files changed, 742 insertions, 723 deletions

diff --git a/challenge-048/luca-ferrari/blog-1.txt b/challenge-048/luca-ferrari/blog1.txt
index c74aff5631..c74aff5631 100644
--- a/challenge-048/luca-ferrari/blog-1.txt
+++ b/challenge-048/luca-ferrari/blog1.txt
diff --git a/challenge-048/luca-ferrari/blog-2.txt b/challenge-048/luca-ferrari/blog2.txt
index c27011114c..c27011114c 100644
--- a/challenge-048/luca-ferrari/blog-2.txt
+++ b/challenge-048/luca-ferrari/blog2.txt
diff --git a/stats/pwc-current.json b/stats/pwc-current.json
index 41c089a45b..e9882c6723 100644
--- a/stats/pwc-current.json
+++ b/stats/pwc-current.json
@@ -1,19 +1,52 @@
 {
-   "yAxis" : {
-      "title" : {
-         "text" : "Total Solutions"
+   "plotOptions" : {
+      "series" : {
+         "borderWidth" : 0,
+         "dataLabels" : {
+            "format" : "{point.y}",
+            "enabled" : 1
+         }
       }
    },
-   "xAxis" : {
-      "type" : "category"
-   },
    "chart" : {
       "type" : "column"
    },
-   "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/>"
+   "subtitle" : {
+      "text" : "[Champions: 4] Last updated at 2020-02-17 10:49:14 GMT"
+   },
+   "series" : [
+      {
+         "data" : [
+            {
+               "name" : "Dave Cross",
+               "y" : 2,
+               "drilldown" : "Dave Cross"
+            },
+            {
+               "drilldown" : "Luca Ferrari",
+               "y" : 4,
+               "name" : "Luca Ferrari"
+            },
+            {
+               "drilldown" : "Peter Scott",
+               "y" : 1,
+               "name" : "Peter Scott"
+            },
+            {
+               "drilldown" : "Simon Proctor",
+               "name" : "Simon Proctor",
+               "y" : 2
+            }
+         ],
+         "colorByPoint" : 1,
+         "name" : "Perl Weekly Challenge - 048"
+      }
+   ],
+   "xAxis" : {
+      "type" : "category"
+   },
+   "title" : {
+      "text" : "Perl Weekly Challenge - 048"
    },
    "drilldown" : {
       "series" : [
@@ -30,16 +63,30 @@
          {
             "data" : [
                [
-                  "Perl",
-                  1
+                  "Raku",
+                  2
+               ],
+               [
+                  "Blog",
+                  2
                ]
             ],
+            "name" : "Luca Ferrari",
+            "id" : "Luca Ferrari"
+         },
+         {
             "name" : "Peter Scott",
-            "id" : "Peter Scott"
+            "id" : "Peter Scott",
+            "data" : [
+               [
+                  "Perl",
+                  1
+               ]
+            ]
          },
          {
-            "id" : "Simon Proctor",
             "name" : "Simon Proctor",
+            "id" : "Simon Proctor",
             "data" : [
                [
                   "Raku",
@@ -49,45 +96,17 @@
          }
       ]
    },
-   "legend" : {
-      "enabled" : 0
-   },
-   "title" : {
-      "text" : "Perl Weekly Challenge - 048"
-   },
-   "subtitle" : {
-      "text" : "[Champions: 3] Last updated at 2020-02-17 10:43:43 GMT"
-   },
-   "plotOptions" : {
-      "series" : {
-         "dataLabels" : {
-            "format" : "{point.y}",
-            "enabled" : 1
-         },
-         "borderWidth" : 0
+   "yAxis" : {
+      "title" : {
+         "text" : "Total Solutions"
       }
    },
-   "series" : [
-      {
-         "name" : "Perl Weekly Challenge - 048",
-         "colorByPoint" : 1,
-         "data" : [
-            {
-               "name" : "Dave Cross",
-               "drilldown" : "Dave Cross",
-               "y" : 2
-            },
-            {
-               "name" : "Peter Scott",
-               "y" : 1,
-               "drilldown" : "Peter Scott"
-            },
-            {
-               "y" : 2,
-               "drilldown" : "Simon Proctor",
-               "name" : "Simon Proctor"
-            }
-         ]
-      }
-   ]
+   "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/>"
+   },
+   "legend" : {
+      "enabled" : 0
+   }
 }
diff --git a/stats/pwc-language-breakdown-summary.json b/stats/pwc-language-breakdown-summary.json
index 7bc75415c2..814133a432 100644
--- a/stats/pwc-language-breakdown-summary.json
+++ b/stats/pwc-language-breakdown-summary.json
@@ -1,53 +1,34 @@
 {
+   "legend" : {
+      "enabled" : "false"
+   },
+   "tooltip" : {
+      "pointFormat" : "<b>{point.y:.0f}</b>"
+   },
    "yAxis" : {
       "title" : {
          "text" : null
       },
       "min" : 0
    },
-   "tooltip" : {
-      "pointFormat" : "<b>{point.y:.0f}</b>"
-   },
-   "chart" : {
-      "type" : "column"
+   "title" : {
+      "text" : "Perl Weekly Challenge Contributions [2019 - 2020]"
    },
    "xAxis" : {
+      "type" : "category",
       "labels" : {
          "style" : {
             "fontFamily" : "Verdana, sans-serif",
             "fontSize" : "13px"
          }
-      },
-      "type" : "category"
-   },
-   "legend" : {
-      "enabled" : "false"
-   },
-   "subtitle" : {
-      "text" : "Last updated at 2020-02-17 10:43:43 GMT"
-   },
-   "title" : {
-      "text" : "Perl Weekly Challenge Contributions [2019 - 2020]"
+      }
    },
    "series" : [
       {
-         "name" : "Contributions",
-         "dataLabels" : {
-            "y" : 10,
-            "align" : "right",
-            "rotation" : -90,
-            "enabled" : "true",
-            "format" : "{point.y:.0f}",
-            "color" : "#FFFFFF",
-            "style" : {
-               "fontSize" : "13px",
-               "fontFamily" : "Verdana, sans-serif"
-            }
-         },
          "data" : [
             [
                "Blog",
-               504
+               506
             ],
             [
                "Perl",
@@ -55,9 +36,28 @@
             ],
             [
                "Raku",
-               1191
+               1193
             ]
-         ]
+         ],
+         "dataLabels" : {
+            "color" : "#FFFFFF",
+            "align" : "right",
+            "enabled" : "true",
+            "y" : 10,
+            "format" : "{point.y:.0f}",
+            "rotation" : -90,
+            "style" : {
+               "fontSize" : "13px",
+               "fontFamily" : "Verdana, sans-serif"
+            }
+         },
+         "name" : "Contributions"
       }
-   ]
+   ],
+   "subtitle" : {
+      "text" : "Last updated at 2020-02-17 10:49:14 GMT"
+   },
+   "chart" : {
+      "type" : "column"
+   }
 }
diff --git a/stats/pwc-language-breakdown.json b/stats/pwc-language-breakdown.json
index 16364a58b1..6977ebfa64 100644
--- a/stats/pwc-language-breakdown.json
+++ b/stats/pwc-language-breakdown.json
@@ -1,18 +1,25 @@
 {
-   "chart" : {
-      "type" : "column"
-   },
    "xAxis" : {
       "type" : "category"
    },
+   "legend" : {
+      "enabled" : "false"
+   },
+   "yAxis" : {
+      "title" : {
+         "text" : "Total Solutions"
+      }
+   },
    "tooltip" : {
-      "headerFormat" : "<span style=\"font-size:11px\"></span>",
       "followPointer" : "true",
+      "headerFormat" : "<span style=\"font-size:11px\"></span>",
       "pointFormat" : "<span style=\"color:{point.color}\">Challenge {point.name}</span>: <b>{point.y:f}</b><br/>"
    },
    "drilldown" : {
       "series" : [
          {
+            "name" : "001",
+            "id" : "001",
             "data" : [
                [
                   "Perl",
@@ -26,13 +33,11 @@
                   "Blog",
                   11
                ]
-            ],
-            "name" : "001",
-            "id" : "001"
+            ]
          },
          {
-            "name" : "002",
             "id" : "002",
+            "name" : "002",
             "data" : [
                [
                   "Perl",
@@ -49,8 +54,6 @@
             ]
          },
          {
-            "name" : "003",
-            "id" : "003",
             "data" : [
                [
                   "Perl",
@@ -64,11 +67,11 @@
                   "Blog",
                   9
                ]
-            ]
+            ],
+            "name" : "003",
+            "id" : "003"
          },
          {
-            "id" : "004",
-            "name" : "004",
             "data" : [
                [
                   "Perl",
@@ -82,11 +85,11 @@
                   "Blog",
                   10
                ]
-            ]
+            ],
+            "name" : "004",
+            "id" : "004"
          },
          {
-            "id" : "005",
-            "name" : "005",
             "data" : [
                [
                   "Perl",
@@ -100,9 +103,13 @@
                   "Blog",
                   12
                ]
-            ]
+            ],
+            "id" : "005",
+            "name" : "005"
          },
          {
+            "name" : "006",
+            "id" : "006",
             "data" : [
                [
                   "Perl",
@@ -116,13 +123,11 @@
                   "Blog",
                   7
                ]
-            ],
-            "id" : "006",
-            "name" : "006"
+            ]
          },
          {
-            "name" : "007",
             "id" : "007",
+            "name" : "007",
             "data" : [
                [
                   "Perl",
@@ -157,6 +162,8 @@
             "id" : "008"
          },
          {
+            "id" : "009",
+            "name" : "009",
             "data" : [
                [
                   "Perl",
@@ -170,11 +177,11 @@
                   "Blog",
                   13
                ]
-            ],
-            "name" : "009",
-            "id" : "009"
+            ]
          },
          {
+            "id" : "010",
+            "name" : "010",
             "data" : [
                [
                   "Perl",
@@ -188,13 +195,9 @@
                   "Blog",
                   11
                ]
-            ],
-            "name" : "010",
-            "id" : "010"
+            ]
          },
          {
-            "name" : "011",
-            "id" : "011",
             "data" : [
                [
                   "Perl",
@@ -208,9 +211,13 @@
                   "Blog",
                   10
                ]
-            ]
+            ],
+            "name" : "011",
+            "id" : "011"
          },
          {
+            "id" : "012",
+            "name" : "012",
             "data" : [
                [
                   "Perl",
@@ -224,11 +231,11 @@
                   "Blog",
                   11
                ]
-            ],
-            "id" : "012",
-            "name" : "012"
+            ]
          },
          {
+            "id" : "013",
+            "name" : "013",
             "data" : [
                [
                   "Perl",
@@ -242,11 +249,11 @@
                   "Blog",
                   13
                ]
-            ],
-            "id" : "013",
-            "name" : "013"
+            ]
          },
          {
+            "name" : "014",
+            "id" : "014",
             "data" : [
                [
                   "Perl",
@@ -260,13 +267,11 @@
                   "Blog",
                   15
                ]
-            ],
-            "name" : "014",
-            "id" : "014"
+            ]
          },
          {
-            "id" : "015",
             "name" : "015",
+            "id" : "015",
             "data" : [
                [
                   "Perl",
@@ -301,8 +306,6 @@
             ]
          },
          {
-            "name" : "017",
-            "id" : "017",
             "data" : [
                [
                   "Perl",
@@ -316,7 +319,9 @@
                   "Blog",
                   12
                ]
-            ]
+            ],
+            "id" : "017",
+            "name" : "017"
          },
          {
             "id" : "018",
@@ -337,6 +342,8 @@
             ]
          },
          {
+            "id" : "019",
+            "name" : "019",
             "data" : [
                [
                   "Perl",
@@ -350,11 +357,11 @@
                   "Blog",
                   13
                ]
-            ],
-            "id" : "019",
-            "name" : "019"
+            ]
          },
          {
+            "name" : "020",
+            "id" : "020",
             "data" : [
                [
                   "Perl",
@@ -368,11 +375,11 @@
                   "Blog",
                   13
                ]
-            ],
-            "name" : "020",
-            "id" : "020"
+            ]
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          {
+            "name" : "021",
+            "id" : "021",
             "data" : [
                [
                   "Perl",
@@ -386,13 +393,11 @@
                   "Blog",
                   10
                ]
-            ],
-            "name" : "021",
-            "id" : "021"
+            ]
          },
          {
-            "id" : "022",
             "name" : "022",
+            "id" : "022",
             "data" : [
                [
                   "Perl",
@@ -423,12 +428,10 @@
                   12
                ]
             ],
-            "name" : "023",
-            "id" : "023"
+            "id" : "023",
+            "name" : "023"
          },
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-            "id" : "024",
-            "name" : "024",
             "data" : [
                [
                   "Perl",
@@ -442,11 +445,11 @@
                   "Blog",
                   11
                ]
-            ]
+            ],
+            "id" : "024",
+            "name" : "024"
          },
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-            "name" : "025",
-            "id" : "025",
             "data" : [
                [
                   "Perl",
@@ -460,11 +463,13 @@
                   "Blog",
                   12
                ]
-            ]
+            ],
+            "id" : "025",
+            "name" : "025"
          },
          {
-            "id" : "026",
             "name" : "026",
+            "id" : "026",
             "data" : [
                [
                   "Perl",
@@ -481,6 +486,8 @@
             ]
          },
          {
+            "id" : "027",
+            "name" : "027",
             "data" : [
                [
                   "Perl",
@@ -494,11 +501,11 @@
                   "Blog",
                   9
                ]
-            ],
-            "name" : "027",
-            "id" : "027"
+            ]
          },
          {
+            "id" : "028",
+            "name" : "028",
             "data" : [
                [
                   "Perl",
@@ -512,11 +519,11 @@
                   "Blog",
                   9
                ]
-            ],
-            "name" : "028",
-            "id" : "028"
+            ]
          },
          {
+            "id" : "029",
+            "name" : "029",
             "data" : [
                [
                   "Perl",
@@ -530,13 +537,11 @@
                   "Blog",
                   12
                ]
-            ],
-            "id" : "029",
-            "name" : "029"
+            ]
          },
          {
-            "name" : "030",
             "id" : "030",
+            "name" : "030",
             "data" : [
                [
                   "Perl",
@@ -603,12 +608,12 @@
                   10
                ]
             ],
-            "id" : "033",
-            "name" : "033"
+            "name" : "033",
+            "id" : "033"
          },
          {
-            "name" : "034",
             "id" : "034",
+            "name" : "034",
             "data" : [
                [
                   "Perl",
@@ -625,8 +630,8 @@
             ]
          },
          {
-            "id" : "035",
             "name" : "035",
+            "id" : "035",
             "data" : [
                [
                   "Perl",
@@ -643,8 +648,6 @@
             ]
          },
          {
-            "name" : "036",
-            "id" : "036",
             "data" : [
                [
                   "Perl",
@@ -658,9 +661,13 @@
                   "Blog",
                   10
                ]
-            ]
+            ],
+            "name" : "036",
+            "id" : "036"
          },
          {
+            "id" : "037",
+            "name" : "037",
             "data" : [
                [
                   "Perl",
@@ -674,9 +681,7 @@
                   "Blog",
                   9
                ]
-            ],
-            "name" : "037",
-            "id" : "037"
+            ]
          },
          {
             "data" : [
@@ -715,8 +720,8 @@
             ]
          },
          {
-            "id" : "040",
             "name" : "040",
+            "id" : "040",
             "data" : [
                [
                   "Perl",
@@ -733,6 +738,8 @@
             ]
          },
          {
+            "id" : "041",
+            "name" : "041",
             "data" : [
                [
                   "Perl",
@@ -746,13 +753,9 @@
                   "Blog",
                   8
                ]
-            ],
-            "name" : "041",
-            "id" : "041"
+            ]
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-            "name" : "042",
-            "id" : "042",
             "data" : [
                [
                   "Perl",
@@ -766,11 +769,13 @@
                   "Blog",
                   11
                ]
-            ]
+            ],
+            "id" : "042",
+            "name" : "042"
          },
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-            "id" : "043",
             "name" : "043",
+            "id" : "043",
             "data" : [
                [
                   "Perl",
@@ -801,10 +806,12 @@
                   10
                ]
             ],
-            "name" : "044",
-            "id" : "044"
+            "id" : "044",
+            "name" : "044"
          },
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+            "id" : "045",
+            "name" : "045",
             "data" : [
                [
                   "Perl",
@@ -818,9 +825,7 @@
                   "Blog",
                   10
                ]
-            ],
-            "name" : "045",
-            "id" : "045"
+            ]
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          {
             "data" : [
@@ -841,6 +846,8 @@
             "id" : "046"
          },
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+            "name" : "047",
+            "id" : "047",
             "data" : [
                [
                   "Perl",
@@ -854,13 +861,9 @@
                   "Blog",
                   8
                ]
-            ],
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-            "id" : "047"
+            ]
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-            "name" : "048",
-            "id" : "048",
             "data" : [
                [
                   "Perl",
@@ -868,60 +871,55 @@
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                [
                   "Raku",
-                  2
+                  4
                ],
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                   "Blog",
-                  0
+                  2
                ]
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          }
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-   "yAxis" : {
-      "title" : {
-         "text" : "Total Solutions"
-      }
-   },
    "title" : {
       "text" : "Perl Weekly Challenge Language"
    },
+   "chart" : {
+      "type" : "column"
+   },
    "plotOptions" : {
       "series" : {
-         "borderWidth" : 0,
          "dataLabels" : {
-            "enabled" : 1,
-            "format" : "{point.y}"
-         }
+            "format" : "{point.y}",
+            "enabled" : 1
+         },
+         "borderWidth" : 0
       }
    },
-   "subtitle" : {
-      "text" : "Click the columns to drilldown the language breakdown. Last updated at 2020-02-17 10:43:43 GMT"
-   },
    "series" : [
       {
-         "colorByPoint" : "true",
-         "name" : "Perl Weekly Challenge Languages",
          "data" : [
             {
-               "drilldown" : "001",
                "y" : 140,
-               "name" : "#001"
+               "name" : "#001",
+               "drilldown" : "001"
             },
             {
                "drilldown" : "002",
-               "y" : 109,
-               "name" : "#002"
+               "name" : "#002",
+               "y" : 109
             },
             {
-               "name" : "#003",
                "drilldown" : "003",
-               "y" : 71
+               "y" : 71,
+               "name" : "#003"
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+               "name" : "#004",
                "y" : 91,
-               "name" : "#004"
+               "drilldown" : "004"
             },
             {
                "drilldown" : "005",
@@ -929,159 +927,159 @@
                "name" : "#005"
             },
             {
-               "drilldown" : "006",
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-               "name" : "#006"
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+               "drilldown" : "006"
             },
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-               "drilldown" : "007",
-               "name" : "#007"
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+               "drilldown" : "007"
             },
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-               "drilldown" : "008",
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-               "name" : "#008"
+               "name" : "#008",
+               "drilldown" : "008"
             },
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-               "drilldown" : "009"
+               "name" : "#009"
             },
             {
                "y" : 60,
-               "drilldown" : "010",
-               "name" : "#010"
+               "name" : "#010",
+               "drilldown" : "010"
             },
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-               "name" : "#011",
+               "drilldown" : "011",
                "y" : 79,
-               "drilldown" : "011"
+               "name" : "#011"
             },
             {
                "y" : 83,
-               "drilldown" : "012",
-               "name" : "#012"
+               "name" : "#012",
+               "drilldown" : "012"
             },
             {
                "name" : "#013",
-               "drilldown" : "013",
-               "y" : 76
+               "y" : 76,
+               "drilldown" : "013"
             },
             {
-               "name" : "#014",
+               "drilldown" : "014",
                "y" : 96,
-               "drilldown" : "014"
+               "name" : "#014"
             },
             {
                "name" : "#015",
-               "drilldown" : "015",
-               "y" : 93
+               "y" : 93,
+               "drilldown" : "015"
             },
             {
                "name" : "#016",
-               "drilldown" : "016",
-               "y" : 66
+               "y" : 66,
+               "drilldown" : "016"
             },
             {
-               "name" : "#017",
                "drilldown" : "017",
+               "name" : "#017",
                "y" : 79
             },
             {
+               "name" : "#018",
                "y" : 76,
-               "drilldown" : "018",
-               "name" : "#018"
+               "drilldown" : "018"
             },
             {
-               "y" : 95,
                "drilldown" : "019",
-               "name" : "#019"
+               "name" : "#019",
+               "y" : 95
             },
             {
-               "name" : "#020",
                "y" : 95,
+               "name" : "#020",
                "drilldown" : "020"
             },
             {
+               "y" : 67,
                "name" : "#021",
-               "drilldown" : "021",
-               "y" : 67
+               "drilldown" : "021"
             },
             {
-               "name" : "#022",
                "drilldown" : "022",
+               "name" : "#022",
                "y" : 63
             },
             {
                "name" : "#023",
-               "drilldown" : "023",
-               "y" : 91
+               "y" : 91,
+               "drilldown" : "023"
             },
             {
-               "name" : "#024",
                "y" : 70,
+               "name" : "#024",
                "drilldown" : "024"
             },
             {
-               "name" : "#025",
                "drilldown" : "025",
+               "name" : "#025",
                "y" : 55
             },
             {
                "name" : "#026",
-               "drilldown" : "026",
-               "y" : 70
+               "y" : 70,
+               "drilldown" : "026"
             },
             {
+               "y" : 58,
                "name" : "#027",
-               "drilldown" : "027",
-               "y" : 58
+               "drilldown" : "027"
             },
             {
-               "name" : "#028",
                "drilldown" : "028",
+               "name" : "#028",
                "y" : 78
             },
             {
+               "drilldown" : "029",
                "name" : "#029",
-               "y" : 77,
-               "drilldown" : "029"
+               "y" : 77
             },
             {
+               "y" : 115,
                "name" : "#030",
-               "drilldown" : "030",
-               "y" : 115
+               "drilldown" : "030"
             },
             {
+               "y" : 87,
                "name" : "#031",
-               "drilldown" : "031",
-               "y" : 87
+               "drilldown" : "031"
             },
             {
-               "name" : "#032",
                "y" : 92,
+               "name" : "#032",
                "drilldown" : "032"
             },
             {
-               "name" : "#033",
                "y" : 108,
+               "name" : "#033",
                "drilldown" : "033"
             },
             {
-               "drilldown" : "034",
+               "name" : "#034",
                "y" : 60,
-               "name" : "#034"
+               "drilldown" : "034"
             },
             {
-               "name" : "#035",
                "drilldown" : "035",
-               "y" : 60
+               "y" : 60,
+               "name" : "#035"
             },
             {
-               "y" : 61,
                "drilldown" : "036",
-               "name" : "#036"
+               "name" : "#036",
+               "y" : 61
             },
             {
                "drilldown" : "037",
@@ -1089,38 +1087,38 @@
                "name" : "#037"
             },
             {
+               "y" : 60,
                "name" : "#038",
-               "drilldown" : "038",
-               "y" : 60
+               "drilldown" : "038"
             },
             {
+               "y" : 60,
                "name" : "#039",
-               "drilldown" : "039",
-               "y" : 60
+               "drilldown" : "039"
             },
             {
-               "name" : "#040",
                "y" : 66,
+               "name" : "#040",