- Added solutions by Luca Ferrari.

13 files changed, 1150 insertions, 1131 deletions

diff --git a/challenge-068/luca-ferrari/blog-1.txt b/challenge-068/luca-ferrari/blog1.txt
index f1b4eafe0c..f1b4eafe0c 100644
--- a/challenge-068/luca-ferrari/blog-1.txt
+++ b/challenge-068/luca-ferrari/blog1.txt
diff --git a/challenge-068/luca-ferrari/blog-2.txt b/challenge-068/luca-ferrari/blog2.txt
index fef19560a5..fef19560a5 100644
--- a/challenge-068/luca-ferrari/blog-2.txt
+++ b/challenge-068/luca-ferrari/blog2.txt
diff --git a/stats/pwc-current.json b/stats/pwc-current.json
index 754c6bd29b..9d115d2cbd 100644
--- a/stats/pwc-current.json
+++ b/stats/pwc-current.json
@@ -1,53 +1,30 @@
 {
+   "subtitle" : {
+      "text" : "[Champions: 4] Last updated at 2020-07-06 13:05:20 GMT"
+   },
    "chart" : {
       "type" : "column"
    },
-   "series" : [
-      {
-         "colorByPoint" : 1,
-         "data" : [
-            {
-               "name" : "Andrew Shitov",
-               "drilldown" : "Andrew Shitov",
-               "y" : 2
-            },
-            {
-               "drilldown" : "Javier Luque",
-               "y" : 5,
-               "name" : "Javier Luque"
-            },
-            {
-               "name" : "Simon Proctor",
-               "drilldown" : "Simon Proctor",
-               "y" : 1
-            }
-         ],
-         "name" : "Perl Weekly Challenge - 068"
-      }
-   ],
-   "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/>"
+   "title" : {
+      "text" : "Perl Weekly Challenge - 068"
    },
    "xAxis" : {
       "type" : "category"
    },
-   "title" : {
-      "text" : "Perl Weekly Challenge - 068"
-   },
-   "yAxis" : {
-      "title" : {
-         "text" : "Total Solutions"
+   "plotOptions" : {
+      "series" : {
+         "dataLabels" : {
+            "enabled" : 1,
+            "format" : "{point.y}"
+         },
+         "borderWidth" : 0
       }
    },
-   "subtitle" : {
-      "text" : "[Champions: 3] Last updated at 2020-07-06 11:19:42 GMT"
-   },
    "drilldown" : {
       "series" : [
          {
             "id" : "Andrew Shitov",
+            "name" : "Andrew Shitov",
             "data" : [
                [
                   "Raku",
@@ -57,11 +34,10 @@
                   "Blog",
                   1
                ]
-            ],
-            "name" : "Andrew Shitov"
+            ]
          },
          {
-            "id" : "Javier Luque",
+            "name" : "Javier Luque",
             "data" : [
                [
                   "Perl",
@@ -76,29 +52,72 @@
                   1
                ]
             ],
-            "name" : "Javier Luque"
+            "id" : "Javier Luque"
          },
          {
-            "name" : "Simon Proctor",
+            "data" : [
+               [
+                  "Raku",
+                  2
+               ],
+               [
+                  "Blog",
+                  2
+               ]
+            ],
+            "name" : "Luca Ferrari",
+            "id" : "Luca Ferrari"
+         },
+         {
+            "id" : "Simon Proctor",
             "data" : [
                [
                   "Raku",
                   1
                ]
             ],
-            "id" : "Simon Proctor"
+            "name" : "Simon Proctor"
          }
       ]
    },
-   "plotOptions" : {
-      "series" : {
-         "borderWidth" : 0,
-         "dataLabels" : {
-            "format" : "{point.y}",
-            "enabled" : 1
-         }
+   "yAxis" : {
+      "title" : {
+         "text" : "Total Solutions"
       }
    },
+   "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,
+         "data" : [
+            {
+               "name" : "Andrew Shitov",
+               "y" : 2,
+               "drilldown" : "Andrew Shitov"
+            },
+            {
+               "drilldown" : "Javier Luque",
+               "y" : 5,
+               "name" : "Javier Luque"
+            },
+            {
+               "name" : "Luca Ferrari",
+               "drilldown" : "Luca Ferrari",
+               "y" : 4
+            },
+            {
+               "y" : 1,
+               "drilldown" : "Simon Proctor",
+               "name" : "Simon Proctor"
+            }
+         ],
+         "name" : "Perl Weekly Challenge - 068"
+      }
+   ],
    "legend" : {
       "enabled" : 0
    }
diff --git a/stats/pwc-language-breakdown-summary.json b/stats/pwc-language-breakdown-summary.json
index b2f58c8508..952fdbaf41 100644
--- a/stats/pwc-language-breakdown-summary.json
+++ b/stats/pwc-language-breakdown-summary.json
@@ -1,17 +1,31 @@
 {
-   "subtitle" : {
-      "text" : "Last updated at 2020-07-06 11:19:42 GMT"
+   "xAxis" : {
+      "type" : "category",
+      "labels" : {
+         "style" : {
+            "fontFamily" : "Verdana, sans-serif",
+            "fontSize" : "13px"
+         }
+      }
+   },
+   "yAxis" : {
+      "title" : {
+         "text" : null
+      },
+      "min" : 0
+   },
+   "tooltip" : {
+      "pointFormat" : "<b>{point.y:.0f}</b>"
    },
    "legend" : {
       "enabled" : "false"
    },
    "series" : [
       {
-         "name" : "Contributions",
          "data" : [
             [
                "Blog",
-               793
+               795
             ],
             [
                "Perl",
@@ -19,45 +33,31 @@
             ],
             [
                "Raku",
-               1787
+               1789
             ]
          ],
+         "name" : "Contributions",
          "dataLabels" : {
-            "format" : "{point.y:.0f}",
-            "color" : "#FFFFFF",
-            "enabled" : "true",
             "style" : {
-               "fontSize" : "13px",
-               "fontFamily" : "Verdana, sans-serif"
+               "fontFamily" : "Verdana, sans-serif",
+               "fontSize" : "13px"
             },
-            "align" : "right",
+            "color" : "#FFFFFF",
             "rotation" : -90,
+            "format" : "{point.y:.0f}",
+            "enabled" : "true",
+            "align" : "right",
             "y" : 10
          }
       }
    ],
-   "chart" : {
-      "type" : "column"
-   },
-   "xAxis" : {
-      "type" : "category",
-      "labels" : {
-         "style" : {
-            "fontSize" : "13px",
-            "fontFamily" : "Verdana, sans-serif"
-         }
-      }
-   },
-   "tooltip" : {
-      "pointFormat" : "<b>{point.y:.0f}</b>"
-   },
-   "yAxis" : {
-      "title" : {
-         "text" : null
-      },
-      "min" : 0
+   "subtitle" : {
+      "text" : "Last updated at 2020-07-06 13:05:20 GMT"
    },
    "title" : {
       "text" : "Perl Weekly Challenge Contributions [2019 - 2020]"
+   },
+   "chart" : {
+      "type" : "column"
    }
 }
diff --git a/stats/pwc-language-breakdown.json b/stats/pwc-language-breakdown.json
index c4a9d4af73..c0f890fa81 100644
--- a/stats/pwc-language-breakdown.json
+++ b/stats/pwc-language-breakdown.json
@@ -1,23 +1,376 @@
 {
-   "plotOptions" : {
-      "series" : {
-         "borderWidth" : 0,
-         "dataLabels" : {
-            "format" : "{point.y}",
-            "enabled" : 1
-         }
-      }
+   "tooltip" : {
+      "pointFormat" : "<span style=\"color:{point.color}\">Challenge {point.name}</span>: <b>{point.y:f}</b><br/>",
+      "headerFormat" : "<span style=\"font-size:11px\"></span>",
+      "followPointer" : "true"
    },
    "legend" : {
       "enabled" : "false"
    },
-   "subtitle" : {
-      "text" : "Click the columns to drilldown the language breakdown. Last updated at 2020-07-06 11:19:42 GMT"
+   "series" : [
+      {
+         "data" : [
+            {
+               "drilldown" : "001",
+               "y" : 142,
+               "name" : "#001"
+            },
+            {
+               "name" : "#002",
+               "y" : 109,
+               "drilldown" : "002"
+            },
+            {
+               "drilldown" : "003",
+               "y" : 71,
+               "name" : "#003"
+            },
+            {
+               "drilldown" : "004",
+               "y" : 91,
+               "name" : "#004"
+            },
+            {
+               "name" : "#005",
+               "y" : 72,
+               "drilldown" : "005"
+            },
+            {
+               "name" : "#006",
+               "y" : 52,
+               "drilldown" : "006"
+            },
+            {
+               "name" : "#007",
+               "drilldown" : "007",
+               "y" : 59
+            },
+            {
+               "name" : "#008",
+               "drilldown" : "008",
+               "y" : 72
+            },
+            {
+               "name" : "#009",
+               "y" : 68,
+               "drilldown" : "009"
+            },
+            {
+               "y" : 60,
+               "drilldown" : "010",
+               "name" : "#010"
+            },
+            {
+               "name" : "#011",
+               "y" : 79,
+               "drilldown" : "011"
+            },
+            {
+               "name" : "#012",
+               "drilldown" : "012",
+               "y" : 83
+            },
+            {
+               "name" : "#013",
+               "y" : 76,
+               "drilldown" : "013"
+            },
+            {
+               "name" : "#014",
+               "y" : 96,
+               "drilldown" : "014"
+            },
+            {
+               "name" : "#015",
+               "drilldown" : "015",
+               "y" : 93
+            },
+            {
+               "name" : "#016",
+               "y" : 66,
+               "drilldown" : "016"
+            },
+            {
+               "name" : "#017",
+               "drilldown" : "017",
+               "y" : 79
+            },
+            {
+               "name" : "#018",
+               "drilldown" : "018",
+               "y" : 76
+            },
+            {
+               "drilldown" : "019",
+               "y" : 97,
+               "name" : "#019"
+            },
+            {
+               "name" : "#020",
+               "y" : 95,
+               "drilldown" : "020"
+            },
+            {
+               "drilldown" : "021",
+               "y" : 67,
+               "name" : "#021"
+            },
+            {
+               "name" : "#022",
+               "y" : 63,
+               "drilldown" : "022"
+            },
+            {
+               "name" : "#023",
+               "y" : 91,
+               "drilldown" : "023"
+            },
+            {
+               "name" : "#024",
+               "drilldown" : "024",
+               "y" : 70
+            },
+            {
+               "name" : "#025",
+               "drilldown" : "025",
+               "y" : 55
+            },
+            {
+               "name" : "#026",
+               "drilldown" : "026",
+               "y" : 70
+            },
+            {
+               "name" : "#027",
+               "y" : 58,
+               "drilldown" : "027"
+            },
+            {
+               "y" : 78,
+               "drilldown" : "028",
+               "name" : "#028"
+            },
+            {
+               "y" : 77,
+               "drilldown" : "029",
+               "name" : "#029"
+            },
+            {
+               "y" : 115,
+               "drilldown" : "030",
+               "name" : "#030"
+            },
+            {
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+               "y" : 87,
+               "name" : "#031"
+            },
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+               "drilldown" : "032",
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+               "name" : "#032"
+            },
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+               "drilldown" : "033",
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+            },
+            {
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+               "y" : 62,
+               "name" : "#034"
+            },
+            {
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+               "drilldown" : "035",
+               "y" : 62
+            },
+            {
+               "name" : "#036",
+               "y" : 66,
+               "drilldown" : "036"
+            },
+            {
+               "drilldown" : "037",
+               "y" : 65,
+               "name" : "#037"
+            },
+            {
+               "drilldown" : "038",
+               "y" : 65,
+               "name" : "#038"
+            },
+            {
+               "name" : "#039",
+               "y" : 60,
+               "drilldown" : "039"
+            },
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+               "drilldown" : "040",
+               "y" : 71
+            },
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+               "drilldown" : "041",
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+               "name" : "#041"
+            },
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+            },
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+               "drilldown" : "043",
+               "name" : "#043"
+            },
+            {
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+               "y" : 82,
+               "drilldown" : "044"
+            },
+            {
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+               "drilldown" : "045"
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+            {
+               "name" : "#046",
+               "y" : 85,
+               "drilldown" : "046"
+            },
+            {
+               "name" : "#047",
+               "drilldown" : "047",
+               "y" : 82
+            },
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+               "name" : "#048",
+               "y" : 106,
+               "drilldown" : "048"
+            },
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+               "drilldown" : "049",
+               "y" : 85,
+               "name" : "#049"
+            },
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+               "drilldown" : "050",
+               "y" : 96
+            },
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+               "y" : 87,
+               "drilldown" : "051"
+            },
+            {
+               "y" : 89,
+               "drilldown" : "052",
+               "name" : "#052"
+            },
+            {
+               "y" : 99,
+               "drilldown" : "053",
+               "name" : "#053"
+            },
+            {
+               "name" : "#054",
+               "drilldown" : "054",
+               "y" : 99
+            },
+            {
+               "name" : "#055",
+               "y" : 86,
+               "drilldown" : "055"
+            },
+            {
+               "drilldown" : "056",
+               "y" : 93,
+               "name" : "#056"
+            },
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+               "name" : "#057",
+               "drilldown" : "057",
+               "y" : 78
+            },
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+               "name" : "#058",
+               "drilldown" : "058",
+               "y" : 62
+            },
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+               "y" : 82,
+               "drilldown" : "059",
+               "name" : "#059"
+            },
+            {
+               "name" : "#060",
+               "y" : 78,
+               "drilldown" : "060"
+            },
+            {
+               "name" : "#061",
+               "y" : 79,
+               "drilldown" : "061"
+            },
+            {
+               "name" : "#062",
+               "y" : 54,
+               "drilldown" : "062"
+            },
+            {
+               "y" : 87,
+               "drilldown" : "063",
+               "name" : "#063"
+            },
+            {
+               "drilldown" : "064",
+               "y" : 76,
+               "name" : "#064"
+            },
+            {
+               "name" : "#065",
+               "drilldown" : "065",
+               "y" : 71
+            },
+            {
+               "y" : 81,
+               "drilldown" : "066",
+               "name" : "#066"
+            },
+            {
+               "name" : "#067",
+               "drilldown" : "067",
+               "y" : 86
+            },
+            {
+               "name" : "#068",
+               "drilldown" : "068",
+               "y" : 12
+            }
+         ],
+         "name" : "Perl Weekly Challenge Languages",
+         "colorByPoint" : "true"
+      }
+   ],
+   "xAxis" : {
+      "type" : "category"
+   },
+   "plotOptions" : {
+      "series" : {
+         "dataLabels" : {
+            "enabled" : 1,
+            "format" : "{point.y}"
+         },
+         "borderWidth" : 0
+      }
    },
    "drilldown" : {
       "series" : [
          {
-            "id" : "001",
+            "name" : "001",
             "data" : [
                [
                   "Perl",
@@ -32,9 +385,10 @@
                   11
                ]
             ],
-            "name" : "001"
+            "id" : "001"
          },
          {
+            "id" : "002",
             "data" : [
                [
                   "Perl",
@@ -49,11 +403,9 @@
                   10
                ]
             ],
-            "name" : "002",
-            "id" : "002"
+            "name" : "002"
          },
          {
-            "name" : "003",
             "data" : [
                [
                   "Perl",
@@ -68,10 +420,11 @@
                   9
                ]
             ],
+            "name" : "003",
             "id" : "003"
          },
          {
-            "id" : "004",
+            "name" : "004",
             "data" : [
                [
                   "Perl",
@@ -86,9 +439,10 @@
                   10
                ]
             ],
-            "name" : "004"
+            "id" : "004"
          },
          {
+            "name" : "005",
             "data" : [
                [
                   "Perl",
@@ -103,7 +457,6 @@
                   12
                ]
             ],
-            "name" : "005",
             "id" : "005"
          },
          {
@@ -126,6 +479,7 @@
          },
          {
             "id" : "007",
+            "name" : "007",
             "data" : [
                [
                   "Perl",
@@ -139,8 +493,7 @@
                   "Blog",
                   10
                ]
-            ],
-            "name" : "007"
+            ]
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@@ -197,8 +550,6 @@
             "name" : "010"
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-            "name" : "011",
             "data" : [
                [
                   "Perl",
@@ -212,10 +563,11 @@
                   "Blog",
                   10
                ]
-            ]
+            ],
+            "name" : "011",
+            "id" : "011"
          },
          {
-            "name" : "012",
             "data" : [
                [
                   "Perl",
@@ -230,9 +582,12 @@
                   11
                ]
             ],
+            "name" : "012",
             "id" : "012"
          },
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+            "id" : "013",
+            "name" : "013",
             "data" : [
                [
                   "Perl",
@@ -246,9 +601,7 @@
                   "Blog",
                   13
                ]
-            ],
-            "name" : "013",
-            "id" : "013"
+            ]
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@@ -269,8 +622,6 @@
             ]
          },
          {
-            "id" : "015",
-            "name" : "015",
             "data" : [
                [
                   "Perl",
@@ -284,9 +635,12 @@
                   "Blog",
                   15
                ]
-            ]
+            ],
+            "name" : "015",
+            "id" : "015"
          },
          {
+            "id" : "016",
             "data" : [
                [
                   "Perl",
@@ -301,11 +655,9 @@
                   12
                ]
             ],
-            "name" : "016",
-            "id" : "016"
+            "name" : "016"
          },
          {
-            "name" : "017",
             "data" : [
                [
                   "Perl",
@@ -320,6 +672,7 @@
                   12
                ]
             ],
+            "name" : "017",
             "id" : "017"
          },
          {
@@ -341,8 +694,6 @@
             "id" : "018"
          },
          {
-            "id" : "019",
-            "name" : "019",
             "data" : [
                [
                   "Perl",
@@ -356,10 +707,12 @@
                   "Blog",
                   13
                ]
-            ]
+            ],
+            "name" : "019",
+            "id" : "019"
          },
          {
-            "name" : "020",
+            "id" : "020",
             "data" : [
                [
                   "Perl",
@@ -374,10 +727,9 @@
                   13
                ]
             ],
-            "id" : "020"
+            "name" : "020"
          },
          {
-            "id" : "021",
             "name" : "021",
             "data" : [
                [
@@ -392,7 +744,8 @@
                   "Blog",
                   10
                ]
-            ]
+            ],
+            "id" : "021"
          },
          {
             "data" : [
@@ -413,8 +766,6 @@
             "id" : "022"
          },
          {
-            "id" : "023",
-            "name" : "023",
             "data" : [
                [
                   "Perl",
@@ -428,10 +779,12 @@
                   "Blog",
                   12
                ]
-            ]
+            ],
+            "name" : "023",
+            "id" : "023"
          },
          {
-            "id" : "024",
+            "name" : "024",
             "data" : [
                [
                   "Perl",
@@ -446,10 +799,11 @@
                   11
                ]
             ],
-            "name" : "024"
+            "id" : "024"
          },
          {
             "id" : "025",
+            "name" : "025",
             "data" : [
                [
                   "Perl",
@@ -463,11 +817,9 @@
                   "Blog",
                   12
                ]
-            ],
-            "name" : "025"
+            ]
          },
          {
-            "name" : "026",
             "data" : [
                [
                   "Perl",
@@ -482,10 +834,10 @@
                   10
                ]
             ],
+            "name" : "026",
             "id" : "026"
          },
          {
-            "id" : "027",
             "name" : "027",
             "data" : [
                [
@@ -500,7 +852,8 @@
                   "Blog",
                   9
                ]
-            ]
+            ],
+            "id" : "027"
          },
          {
             "id" : "028",
@@ -522,7 +875,6 @@
          },
          {
             "id" : "029",
-            "name" : "029",
             "data" : [
                [
                   "Perl",
@@ -536,7 +888,8 @@
                   "Blog",
                   12
                ]
-            ]
+            ],
+            "name" : "029"
          },
          {
             "data" : [
@@ -557,6 +910,7 @@
             "id" : "030"
          },
          {
+            "name" : "031",
             "data" : [
                [
                   "Perl",
@@ -571,7 +925,6 @@
                   9
                ]
             ],
-            "name" : "031",
             "id" : "031"
          },
          {
@@ -593,6 +946,7 @@
             "id" : "032"
          },
          {
+            "id" : "033",
             "data" : [
                [
                   "Perl",
@@ -607,8 +961,7 @@
                   10
                ]
             ],
-            "name" : "033",
-            "id" : "033"
+            "name" : "033"
          },
          {
             "id" : "034",
@@ -630,6 +983,7 @@
          },
          {
             "id" : "035",
+            "name" : "035",
             "data" : [
                [
                   "Perl",
@@ -643,8 +997,7 @@
                   "Blog",
                   9
                ]
-            ],
-            "name" : "035"
+            ]
          },
          {
             "id" : "036",
@@ -683,7 +1036,7 @@
             "id" : "037"
          },
          {
-            "id" : "038",
+            "name" : "038",
             "data" : [
                [
                   "Perl",
@@ -698,10 +1051,10 @@
                   12
                ]
             ],
-            "name" : "038"
+            "id" : "038"
          },
          {
-            "name" : "039",
+            "id" : "039",
             "data" : [
                [
                   "Perl",
@@ -716,9 +1069,10 @@
                   12
                ]
             ],
-            "id" : "039"
+            "name" : "039"
          },
          {
+            "name" : "040",
             "data" : [
                [
                   "Perl",
@@ -733,7 +1087,6 @@
                   10
                ]
             ],
-            "name" : "040",
             "id" : "040"
          },
          {
@@ -773,7 +1126,6 @@
             "id" : "042"
          },
          {
-            "id" : "043",
             "name" : "043",
             "data" : [
                [
@@ -788,10 +1140,12 @@
                   "Blog",
                   11
                ]
-            ]
+            ],
+            "id" : "043"
          },
          {
             "id" : "044",
+            "name" : "044",
             "data" : [
                [
                   "Perl",
@@ -805,10 +1159,10 @@
                   "Blog",
                   11
                ]
-            ],
-            "name" : "044"
+            ]
          },
          {
+            "id" : "045",
             "name" : "045",
             "data" : [
                [
@@ -823,11 +1177,9 @@
                   "Blog",
                   11
                ]
-            ],
-            "id" : "045"
+            ]
          },
          {
-            "id" : "046",
             "data" : [
                [
                   "Perl",
@@ -842,9 +1194,11 @@
                   10
                ]
             ],
-            "name" : "046"
+            "name" : "046",
+            "id" : "046"
          },
          {
+            "id" : "047",
             "data" : [
                [
                   "Perl",
@@ -859,11 +1213,9 @@
                   10
                ]
             ],
-            "name" : "047",
-            "id" : "047"
+            "name" : "047"
          },
          {
-            "id" : "048",
             "data" : [
                [
                   "Perl",