- Added solutions by Luca Ferrari.

14 files changed, 1613 insertions, 1523 deletions

diff --git a/challenge-064/luca-ferrari/blog-1.txt b/challenge-064/luca-ferrari/blog1.txt
index 4a704585dd..4a704585dd 100644
--- a/challenge-064/luca-ferrari/blog-1.txt
+++ b/challenge-064/luca-ferrari/blog1.txt
diff --git a/challenge-064/luca-ferrari/blog-2.txt b/challenge-064/luca-ferrari/blog2.txt
index eeb2064fce..eeb2064fce 100644
--- a/challenge-064/luca-ferrari/blog-2.txt
+++ b/challenge-064/luca-ferrari/blog2.txt
diff --git a/stats/pwc-challenge-063.json b/stats/pwc-challenge-063.json
new file mode 100644
index 0000000000..53a143540f
--- /dev/null
+++ b/stats/pwc-challenge-063.json
@@ -0,0 +1,552 @@
+{
+   "drilldown" : {
+      "series" : [
+         {
+            "name" : "Alicia Bielsa",
+            "id" : "Alicia Bielsa",
+            "data" : [
+               [
+                  "Perl",
+                  1
+               ]
+            ]
+         },
+         {
+            "id" : "Arne Sommer",
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ],
+               [
+                  "Raku",
+                  2
+               ],
+               [
+                  "Blog",
+                  1
+               ]
+            ],
+            "name" : "Arne Sommer"
+         },
+         {
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ],
+               [
+                  "Raku",
+                  2
+               ]
+            ],
+            "id" : "Athanasius",
+            "name" : "Athanasius"
+         },
+         {
+            "name" : "Bartosz Jarzyna",
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ],
+               [
+                  "Blog",
+                  1
+               ]
+            ],
+            "id" : "Bartosz Jarzyna"
+         },
+         {
+            "name" : "Cheok-Yin Fung",
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ],
+               [
+                  "Blog",
+                  1
+               ]
+            ],
+            "id" : "Cheok-Yin Fung"
+         },
+         {
+            "name" : "Colin Crain",
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ],
+               [
+                  "Raku",
+                  2
+               ],
+               [
+                  "Blog",
+                  1
+               ]
+            ],
+            "id" : "Colin Crain"
+         },
+         {
+            "name" : "Dave Jacoby",
+            "id" : "Dave Jacoby",
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ]
+            ]
+         },
+         {
+            "name" : "Duncan C. White",
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ]
+            ],
+            "id" : "Duncan C. White"
+         },
+         {
+            "name" : "E. Choroba",
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ]
+            ],
+            "id" : "E. Choroba"
+         },
+         {
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ],
+               [
+                  "Raku",
+                  2
+               ],
+               [
+                  "Blog",
+                  1
+               ]
+            ],
+            "id" : "Jaldhar H. Vyas",
+            "name" : "Jaldhar H. Vyas"
+         },
+         {
+            "name" : "Javier Luque",
+            "id" : "Javier Luque",
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ],
+               [
+                  "Raku",
+                  2
+               ],
+               [
+                  "Blog",
+                  1
+               ]
+            ]
+         },
+         {
+            "name" : "Jorg Sommrey",
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ]
+            ],
+            "id" : "Jorg Sommrey"
+         },
+         {
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ],
+               [
+                  "Raku",
+                  2
+               ],
+               [
+                  "Blog",
+                  1
+               ]
+            ],
+            "id" : "Laurent Rosenfeld",
+            "name" : "Laurent Rosenfeld"
+         },
+         {
+            "name" : "Luca Ferrari",
+            "id" : "Luca Ferrari",
+            "data" : [
+               [
+                  "Raku",
+                  2
+               ],
+               [
+                  "Blog",
+                  2
+               ]
+            ]
+         },
+         {
+            "id" : "Mark Anderson",
+            "data" : [
+               [
+                  "Raku",
+                  2
+               ]
+            ],
+            "name" : "Mark Anderson"
+         },
+         {
+            "id" : "Markus Holzer",
+            "data" : [
+               [
+                  "Raku",
+                  2
+               ]
+            ],
+            "name" : "Markus Holzer"
+         },
+         {
+            "name" : "Mohammad S Anwar",
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ],
+               [
+                  "Raku",
+                  2
+               ],
+               [
+                  "Blog",
+                  1
+               ]
+            ],
+            "id" : "Mohammad S Anwar"
+         },
+         {
+            "id" : "Niels van Dijke",
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ]
+            ],
+            "name" : "Niels van Dijke"
+         },
+         {
+            "name" : "Noud Aldenhoven",
+            "data" : [
+               [
+                  "Raku",
+                  2
+               ]
+            ],
+            "id" : "Noud Aldenhoven"
+         },
+         {
+            "name" : "Pete Houston",
+            "id" : "Pete Houston",
+            "data" : [
+               [
+                  "Perl",
+                  1
+               ]
+            ]
+         },
+         {
+            "name" : "Richard Park",
+            "id" : "Richard Park",
+            "data" : [
+               [
+                  "Blog",
+                  1
+               ]
+            ]
+         },
+         {
+            "id" : "Roger Bell_West",
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ],
+               [
+                  "Raku",
+                  2
+               ],
+               [
+                  "Blog",
+                  1
+               ]
+            ],
+            "name" : "Roger Bell_West"
+         },
+         {
+            "id" : "Saif Ahmed",
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ]
+            ],
+            "name" : "Saif Ahmed"
+         },
+         {
+            "name" : "Sangeet Kar",
+            "id" : "Sangeet Kar",
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ],
+               [
+                  "Raku",
+                  2
+               ]
+            ]
+         },
+         {
+            "data" : [
+               [
+                  "Raku",
+                  2
+               ],
+               [
+                  "Blog",
+                  1
+               ]
+            ],
+            "id" : "Shahed Nooshmand",
+            "name" : "Shahed Nooshmand"
+         },
+         {
+            "name" : "Simon Proctor",
+            "id" : "Simon Proctor",
+            "data" : [
+               [
+                  "Raku",
+                  2
+               ]
+            ]
+         },
+         {
+            "name" : "Ulrich Rieke",
+            "id" : "Ulrich Rieke",
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ],
+               [
+                  "Raku",
+                  2
+               ]
+            ]
+         },
+         {
+            "name" : "Wanderdoc",
+            "id" : "Wanderdoc",
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ]
+            ]
+         }
+      ]
+   },
+   "series" : [
+      {
+         "name" : "Perl Weekly Challenge - 063",
+         "colorByPoint" : 1,
+         "data" : [
+            {
+               "y" : 1,
+               "drilldown" : "Alicia Bielsa",
+               "name" : "Alicia Bielsa"
+            },
+            {
+               "y" : 5,
+               "name" : "Arne Sommer",
+               "drilldown" : "Arne Sommer"
+            },
+            {
+               "name" : "Athanasius",
+               "drilldown" : "Athanasius",
+               "y" : 4
+            },
+            {
+               "drilldown" : "Bartosz Jarzyna",
+               "name" : "Bartosz Jarzyna",
+               "y" : 3
+            },
+            {
+               "y" : 3,
+               "name" : "Cheok-Yin Fung",
+               "drilldown" : "Cheok-Yin Fung"
+            },
+            {
+               "y" : 5,
+               "drilldown" : "Colin Crain",
+               "name" : "Colin Crain"
+            },
+            {
+               "y" : 2,
+               "name" : "Dave Jacoby",
+               "drilldown" : "Dave Jacoby"
+            },
+            {
+               "drilldown" : "Duncan C. White",
+               "name" : "Duncan C. White",
+               "y" : 2
+            },
+            {
+               "y" : 2,
+               "name" : "E. Choroba",
+               "drilldown" : "E. Choroba"
+            },
+            {
+               "drilldown" : "Jaldhar H. Vyas",
+               "name" : "Jaldhar H. Vyas",
+               "y" : 5
+            },
+            {
+               "y" : 5,
+               "name" : "Javier Luque",
+               "drilldown" : "Javier Luque"
+            },
+            {
+               "y" : 2,
+               "name" : "Jorg Sommrey",
+               "drilldown" : "Jorg Sommrey"
+            },
+            {
+               "name" : "Laurent Rosenfeld",
+               "drilldown" : "Laurent Rosenfeld",
+               "y" : 5
+            },
+            {
+               "y" : 4,
+               "name" : "Luca Ferrari",
+               "drilldown" : "Luca Ferrari"
+            },
+            {
+               "drilldown" : "Mark Anderson",
+               "name" : "Mark Anderson",
+               "y" : 2
+            },
+            {
+               "name" : "Markus Holzer",
+               "drilldown" : "Markus Holzer",
+               "y" : 2
+            },
+            {
+               "name" : "Mohammad S Anwar",
+               "drilldown" : "Mohammad S Anwar",
+               "y" : 5
+            },
+            {
+               "y" : 2,
+               "name" : "Niels van Dijke",
+               "drilldown" : "Niels van Dijke"
+            },
+            {
+               "y" : 2,
+               "name" : "Noud Aldenhoven",
+               "drilldown" : "Noud Aldenhoven"
+            },
+            {
+               "y" : 1,
+               "drilldown" : "Pete Houston",
+               "name" : "Pete Houston"
+            },
+            {
+               "y" : 1,
+               "name" : "Richard Park",
+               "drilldown" : "Richard Park"
+            },
+            {
+               "drilldown" : "Roger Bell_West",
+               "name" : "Roger Bell_West",
+               "y" : 5
+            },
+            {
+               "y" : 2,
+               "name" : "Saif Ahmed",
+               "drilldown" : "Saif Ahmed"
+            },
+            {
+               "drilldown" : "Sangeet Kar",
+               "name" : "Sangeet Kar",
+               "y" : 4
+            },
+            {
+               "drilldown" : "Shahed Nooshmand",
+               "name" : "Shahed Nooshmand",
+               "y" : 3
+            },
+            {
+               "drilldown" : "Simon Proctor",
+               "name" : "Simon Proctor",
+               "y" : 2
+            },
+            {
+               "name" : "Ulrich Rieke",
+               "drilldown" : "Ulrich Rieke",
+               "y" : 4
+            },
+            {
+               "y" : 2,
+               "drilldown" : "Wanderdoc",
+               "name" : "Wanderdoc"
+            }
+         ]
+      }
+   ],
+   "title" : {
+      "text" : "Perl Weekly Challenge - 063"
+   },
+   "subtitle" : {
+      "text" : "[Champions: 28] Last updated at 2020-06-08 11:32:22 GMT"
+   },
+   "legend" : {
+      "enabled" : 0
+   },
+   "chart" : {
+      "type" : "column"
+   },
+   "yAxis" : {
+      "title" : {
+         "text" : "Total Solutions"
+      }
+   },
+   "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/>"
+   },
+   "plotOptions" : {
+      "series" : {
+         "dataLabels" : {
+            "format" : "{point.y}",
+            "enabled" : 1
+         },
+         "borderWidth" : 0
+      }
+   },
+   "xAxis" : {
+      "type" : "category"
+   }
+}
diff --git a/stats/pwc-current.json b/stats/pwc-current.json
index 3a9ec75ca2..fa7329d640 100644
--- a/stats/pwc-current.json
+++ b/stats/pwc-current.json
@@ -1,552 +1,67 @@
 {
-   "legend" : {
-      "enabled" : 0
+   "chart" : {
+      "type" : "column"
    },
-   "subtitle" : {
-      "text" : "[Champions: 28] Last updated at 2020-06-08 00:01:10 GMT"
+   "title" : {
+      "text" : "Perl Weekly Challenge - 064"
    },
-   "xAxis" : {
-      "type" : "category"
+   "legend" : {
+      "enabled" : 0
    },
    "plotOptions" : {
       "series" : {
-         "borderWidth" : 0,
          "dataLabels" : {
-            "enabled" : 1,
-            "format" : "{point.y}"
-         }
+            "format" : "{point.y}",
+            "enabled" : 1
+         },
+         "borderWidth" : 0
       }
    },
    "drilldown" : {
       "series" : [
          {
-            "id" : "Alicia Bielsa",
-            "data" : [
-               [
-                  "Perl",
-                  1
-               ]
-            ],
-            "name" : "Alicia Bielsa"
-         },
-         {
-            "data" : [
-               [
-                  "Perl",
-                  2
-               ],
-               [
-                  "Raku",
-                  2
-               ],
-               [
-                  "Blog",
-                  1
-               ]
-            ],
-            "id" : "Arne Sommer",
-            "name" : "Arne Sommer"
-         },
-         {
-            "id" : "Athanasius",
-            "data" : [
-               [
-                  "Perl",
-                  2
-               ],
-               [
-                  "Raku",
-                  2
-               ]
-            ],
-            "name" : "Athanasius"
-         },
-         {
-            "data" : [
-               [
-                  "Perl",
-                  2
-               ],
-               [
-                  "Blog",
-                  1
-               ]
-            ],
-            "id" : "Bartosz Jarzyna",
-            "name" : "Bartosz Jarzyna"
-         },
-         {
-            "data" : [
-               [
-                  "Perl",
-                  2
-               ],
-               [
-                  "Blog",
-                  1
-               ]
-            ],
-            "id" : "Cheok-Yin Fung",
-            "name" : "Cheok-Yin Fung"
-         },
-         {
-            "name" : "Colin Crain",
-            "id" : "Colin Crain",
             "data" : [
                [
-                  "Perl",
-                  2
-               ],
-               [
                   "Raku",
                   2
                ],
                [
                   "Blog",
-                  1
-               ]
-            ]
-         },
-         {
-            "name" : "Dave Jacoby",
-            "id" : "Dave Jacoby",
-            "data" : [
-               [
-                  "Perl",
-                  2
-               ]
-            ]
-         },
-         {
-            "data" : [
-               [
-                  "Perl",
                   2
                ]
             ],
-            "id" : "Duncan C. White",
-            "name" : "Duncan C. White"
-         },
-         {
-            "name" : "E. Choroba",
-            "id" : "E. Choroba",
-            "data" : [
-               [
-                  "Perl",
-                  2
-               ]
-            ]
-         },
-         {
-            "data" : [
-               [
-                  "Perl",
-                  2
-               ],
-               [
-                  "Raku",
-                  2
-               ],
-               [
-                  "Blog",
-                  1
-               ]
-            ],
-            "id" : "Jaldhar H. Vyas",
-            "name" : "Jaldhar H. Vyas"
-         },
-         {
-            "data" : [
-               [
-                  "Perl",
-                  2
-               ],
-               [
-                  "Raku",
-                  2
-               ],
-               [
-                  "Blog",
-                  1
-               ]
-            ],
-            "id" : "Javier Luque",
-            "name" : "Javier Luque"
-         },
-         {
-            "data" : [
-               [
-                  "Perl",
-                  2
-               ]
-            ],
-            "id" : "Jorg Sommrey",
-            "name" : "Jorg Sommrey"
-         },
-         {
-            "data" : [
-               [
-                  "Perl",
-                  2
-               ],
-               [
-                  "Raku",
-                  2
-               ],
-               [
-                  "Blog",
-                  1
-               ]
-            ],
-            "id" : "Laurent Rosenfeld",
-            "name" : "Laurent Rosenfeld"
-         },
-         {
             "name" : "Luca Ferrari",
-            "id" : "Luca Ferrari",
-            "data" : [
-               [
-                  "Raku",
-                  2
-               ],
-               [
-                  "Blog",
-                  2
-               ]
-            ]
-         },
-         {
-            "name" : "Mark Anderson",
-            "id" : "Mark Anderson",
-            "data" : [
-               [
-                  "Raku",
-                  2
-               ]
-            ]
-         },
-         {
-            "name" : "Markus Holzer",
-            "data" : [
-               [
-                  "Raku",
-                  2
-               ]
-            ],
-            "id" : "Markus Holzer"
-         },
-         {
-            "name" : "Mohammad S Anwar",
-            "data" : [
-               [
-                  "Perl",
-                  2
-               ],
-               [
-                  "Raku",
-                  2
-               ],
-               [
-                  "Blog",
-                  1
-               ]
-            ],
-            "id" : "Mohammad S Anwar"
-         },
-         {
-            "id" : "Niels van Dijke",
-            "data" : [
-               [
-                  "Perl",
-                  2
-               ]
-            ],
-            "name" : "Niels van Dijke"
-         },
-         {
-            "name" : "Noud Aldenhoven",
-            "id" : "Noud Aldenhoven",
-            "data" : [
-               [
-                  "Raku",
-                  2
-               ]
-            ]
-         },
-         {
-            "name" : "Pete Houston",
-            "data" : [
-               [
-                  "Perl",
-                  1
-               ]
-            ],
-            "id" : "Pete Houston"
-         },
-         {
-            "name" : "Richard Park",
-            "data" : [
-               [
-                  "Blog",
-                  1
-               ]
-            ],
-            "id" : "Richard Park"
-         },
-         {
-            "id" : "Roger Bell_West",
-            "data" : [
-               [
-                  "Perl",
-                  2
-               ],
-               [
-                  "Raku",
-                  2
-               ],
-               [
-                  "Blog",
-                  1
-               ]
-            ],
-            "name" : "Roger Bell_West"
-         },
-         {
-            "id" : "Saif Ahmed",
-            "data" : [
-               [
-                  "Perl",
-                  2
-               ]
-            ],
-            "name" : "Saif Ahmed"
-         },
-         {
-            "id" : "Sangeet Kar",
-            "data" : [
-               [
-                  "Perl",
-                  2
-               ],
-               [
-                  "Raku",
-                  2
-               ]
-            ],
-            "name" : "Sangeet Kar"
-         },
-         {
-            "name" : "Shahed Nooshmand",
-            "id" : "Shahed Nooshmand",
-            "data" : [
-               [
-                  "Raku",
-                  2
-               ],
-               [
-                  "Blog",
-                  1
-               ]
-            ]
-         },
-         {
-            "name" : "Simon Proctor",
-            "id" : "Simon Proctor",
-            "data" : [
-               [
-                  "Raku",
-                  2
-               ]
-            ]
-         },
-         {
-            "name" : "Ulrich Rieke",
-            "id" : "Ulrich Rieke",
-            "data" : [
-               [
-                  "Perl",
-                  2
-               ],
-               [
-                  "Raku",
-                  2
-               ]
-            ]
-         },
-         {
-            "name" : "Wanderdoc",
-            "id" : "Wanderdoc",
-            "data" : [
-               [
-                  "Perl",
-                  2
-               ]
-            ]
+            "id" : "Luca Ferrari"
          }
       ]
    },
-   "yAxis" : {
-      "title" : {
-         "text" : "Total Solutions"
-      }
-   },
-   "chart" : {
-      "type" : "column"
-   },
-   "tooltip" : {
-      "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/>",
-      "followPointer" : 1
-   },
    "series" : [
       {
          "data" : [
             {
-               "y" : 1,
-               "name" : "Alicia Bielsa",
-               "drilldown" : "Alicia Bielsa"
-            },
-            {
-               "drilldown" : "Arne Sommer",
-               "name" : "Arne Sommer",
-               "y" : 5
-            },
-            {
-               "y" : 4,
-               "name" : "Athanasius",
-               "drilldown" : "Athanasius"
-            },
-            {
-               "y" : 3,
-               "name" : "Bartosz Jarzyna",
-               "drilldown" : "Bartosz Jarzyna"
-            },
-            {
-               "y" : 3,
-               "drilldown" : "Cheok-Yin Fung",
-               "name" : "Cheok-Yin Fung"
-            },
-            {
-               "drilldown" : "Colin Crain",
-               "name" : "Colin Crain",
-               "y" : 5
-            },
-            {
-               "name" : "Dave Jacoby",
-               "drilldown" : "Dave Jacoby",
-               "y" : 2
-            },
-            {
-               "name" : "Duncan C. White",
-               "drilldown" : "Duncan C. White",
-               "y" : 2
-            },
-            {
-               "y" : 2,
-               "name" : "E. Choroba",
-               "drilldown" : "E. Choroba"
-            },
-            {
-               "y" : 5,
-               "name" : "Jaldhar H. Vyas",
-               "drilldown" : "Jaldhar H. Vyas"
-            },
-            {
-               "y" : 5,
-               "name" : "Javier Luque",
-               "drilldown" : "Javier Luque"
-            },
-            {
-               "y" : 2,
-               "name" : "Jorg Sommrey",
-               "drilldown" : "Jorg Sommrey"
-            },
-            {
-               "drilldown" : "Laurent Rosenfeld",
-               "name" : "Laurent Rosenfeld",
-               "y" : 5
-            },
-            {
-               "drilldown" : "Luca Ferrari",
                "name" : "Luca Ferrari",
+               "drilldown" : "Luca Ferrari",
                "y" : 4
-            },
-            {
-               "name" : "Mark Anderson",
-               "drilldown" : "Mark Anderson",
-               "y" : 2
-            },
-            {
-               "y" : 2,
-               "drilldown" : "Markus Holzer",
-               "name" : "Markus Holzer"
-            },
-            {
-               "y" : 5,
-               "drilldown" : "Mohammad S Anwar",
-               "name" : "Mohammad S Anwar"
-            },
-            {
-               "y" : 2,
-               "name" : "Niels van Dijke",
-               "drilldown" : "Niels van Dijke"
-            },
-            {
-               "y" : 2,
-               "name" : "Noud Aldenhoven",
-               "drilldown" : "Noud Aldenhoven"
-            },
-            {
-               "drilldown" : "Pete Houston",
-               "name" : "Pete Houston",
-               "y" : 1
-            },
-            {
-               "drilldown" : "Richard Park",
-               "name" : "Richard Park",
-               "y" : 1
-            },
-            {
-               "y" : 5,
-               "name" : "Roger Bell_West",
-               "drilldown" : "Roger Bell_West"
-            },
-            {
-               "name" : "Saif Ahmed",
-               "drilldown" : "Saif Ahmed",
-               "y" : 2
-            },
-            {
-               "y" : 4,
-               "drilldown" : "Sangeet Kar",
-               "name" : "Sangeet Kar"
-            },
-            {
-               "name" : "Shahed Nooshmand",
-               "drilldown" : "Shahed Nooshmand",
-               "y" : 3
-            },
-            {
-               "y" : 2,
-               "drilldown" : "Simon Proctor",
-               "name" : "Simon Proctor"
-            },
-            {
-               "name" : "Ulrich Rieke",
-               "drilldown" : "Ulrich Rieke",
-               "y" : 4
-            },
-            {
-               "name" : "Wanderdoc",
-               "drilldown" : "Wanderdoc",
-               "y" : 2
             }
          ],
-         "colorByPoint" : 1,