- Added solution by Anton Fedotov.

13 files changed, 1615 insertions, 1529 deletions

diff --git a/stats/pwc-challenge-077.json b/stats/pwc-challenge-077.json
new file mode 100644
index 0000000000..12cc17a2bb
--- /dev/null
+++ b/stats/pwc-challenge-077.json
@@ -0,0 +1,638 @@
+{
+   "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/>"
+   },
+   "drilldown" : {
+      "series" : [
+         {
+            "id" : "Adam Russell",
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ],
+               [
+                  "Blog",
+                  1
+               ]
+            ],
+            "name" : "Adam Russell"
+         },
+         {
+            "name" : "Alexander Pankoff",
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ]
+            ],
+            "id" : "Alexander Pankoff"
+         },
+         {
+            "name" : "Andinus",
+            "data" : [
+               [
+                  "Perl",
+                  1
+               ],
+               [
+                  "Blog",
+                  1
+               ]
+            ],
+            "id" : "Andinus"
+         },
+         {
+            "name" : "Andrew Shitov",
+            "data" : [
+               [
+                  "Perl",
+                  1
+               ],
+               [
+                  "Raku",
+                  2
+               ],
+               [
+                  "Blog",
+                  2
+               ]
+            ],
+            "id" : "Andrew Shitov"
+         },
+         {
+            "name" : "Arne Sommer",
+            "data" : [
+               [
+                  "Raku",
+                  2
+               ],
+               [
+                  "Blog",
+                  1
+               ]
+            ],
+            "id" : "Arne Sommer"
+         },
+         {
+            "name" : "Athanasius",
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ],
+               [
+                  "Raku",
+                  2
+               ]
+            ],
+            "id" : "Athanasius"
+         },
+         {
+            "name" : "Bob Lied",
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ]
+            ],
+            "id" : "Bob Lied"
+         },
+         {
+            "id" : "Cheok-Yin Fung",
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ],
+               [
+                  "Blog",
+                  1
+               ]
+            ],
+            "name" : "Cheok-Yin Fung"
+         },
+         {
+            "name" : "Colin Crain",
+            "id" : "Colin Crain",
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ],
+               [
+                  "Raku",
+                  2
+               ],
+               [
+                  "Blog",
+                  1
+               ]
+            ]
+         },
+         {
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ]
+            ],
+            "id" : "Dave Jacoby",
+            "name" : "Dave Jacoby"
+         },
+         {
+            "id" : "Duncan C. White",
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ]
+            ],
+            "name" : "Duncan C. White"
+         },
+         {
+            "name" : "E. Choroba",
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ]
+            ],
+            "id" : "E. Choroba"
+         },
+         {
+            "id" : "Feng Chang",
+            "data" : [
+               [
+                  "Raku",
+                  2
+               ]
+            ],
+            "name" : "Feng Chang"
+         },
+         {
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ]
+            ],
+            "id" : "Flavio Poletti",
+            "name" : "Flavio Poletti"
+         },
+         {
+            "name" : "Jan Krnavek",
+            "id" : "Jan Krnavek",
+            "data" : [
+               [
+                  "Raku",
+                  1
+               ]
+            ]
+         },
+         {
+            "name" : "Jason Messer",
+            "data" : [
+               [
+                  "Raku",
+                  2
+               ]
+            ],
+            "id" : "Jason Messer"
+         },
+         {
+            "id" : "Jorg Sommrey",
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ]
+            ],
+            "name" : "Jorg Sommrey"
+         },
+         {
+            "id" : "Laurent Rosenfeld",
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ],
+               [
+                  "Raku",
+                  2
+               ],
+               [
+                  "Blog",
+                  1
+               ]
+            ],
+            "name" : "Laurent Rosenfeld"
+         },
+         {
+            "name" : "Lubos Kolouch",
+            "id" : "Lubos Kolouch",
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ]
+            ]
+         },
+         {
+            "data" : [
+               [
+                  "Raku",
+                  2
+               ]
+            ],
+            "id" : "Mark Anderson",
+            "name" : "Mark Anderson"
+         },
+         {
+            "data" : [
+               [
+                  "Raku",
+                  2
+               ]
+            ],
+            "id" : "Markus Holzer",
+            "name" : "Markus Holzer"
+         },
+         {
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ],
+               [
+                  "Raku",
+                  2
+               ],
+               [
+                  "Blog",
+                  1
+               ]
+            ],
+            "id" : "Mohammad S Anwar",
+            "name" : "Mohammad S Anwar"
+         },
+         {
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ],
+               [
+                  "Raku",
+                  2
+               ]
+            ],
+            "id" : "Myoungjin Jeon",
+            "name" : "Myoungjin Jeon"
+         },
+         {
+            "name" : "Niels van Dijke",
+            "id" : "Niels van Dijke",
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ]
+            ]
+         },
+         {
+            "name" : "Nuno Vieira",
+            "id" : "Nuno Vieira",
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ]
+            ]
+         },
+         {
+            "name" : "P6steve",
+            "data" : [
+               [
+                  "Raku",
+                  2
+               ]
+            ],
+            "id" : "P6steve"
+         },
+         {
+            "name" : "Pete Houston",
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ]
+            ],
+            "id" : "Pete Houston"
+         },
+         {
+            "name" : "Roger Bell_West",
+            "id" : "Roger Bell_West",
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ],
+               [
+                  "Raku",
+                  2
+               ],
+               [
+                  "Blog",
+                  1
+               ]
+            ]
+         },
+         {
+            "data" : [
+               [
+                  "Raku",
+                  2
+               ],
+               [
+                  "Blog",
+                  1
+               ]
+            ],
+            "id" : "Shahed Nooshmand",
+            "name" : "Shahed Nooshmand"
+         },
+         {
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ],
+               [
+                  "Blog",
+                  1
+               ]
+            ],
+            "id" : "Simon Green",
+            "name" : "Simon Green"
+         },
+         {
+            "name" : "Simon Proctor",
+            "data" : [
+               [
+                  "Raku",
+                  2
+               ]
+            ],
+            "id" : "Simon Proctor"
+         },
+         {
+            "data" : [
+               [
+                  "Perl",
+                  1
+               ],
+               [
+                  "Raku",
+                  1
+               ]
+            ],
+            "id" : "Ulrich Rieke",
+            "name" : "Ulrich Rieke"
+         },
+         {
+            "id" : "Walt Mankowski",
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ],
+               [
+                  "Blog",
+                  1
+               ]
+            ],
+            "name" : "Walt Mankowski"
+         },
+         {
+            "id" : "Wanderdoc",
+            "data" : [
+               [
+                  "Perl",
+                  1
+               ]
+            ],
+            "name" : "Wanderdoc"
+         }
+      ]
+   },
+   "title" : {
+      "text" : "Perl Weekly Challenge - 077"
+   },
+   "legend" : {
+      "enabled" : 0
+   },
+   "subtitle" : {
+      "text" : "[Champions: 34] Last updated at 2020-09-14 06:30:07 GMT"
+   },
+   "yAxis" : {
+      "title" : {
+         "text" : "Total Solutions"
+      }
+   },
+   "chart" : {
+      "type" : "column"
+   },
+   "plotOptions" : {
+      "series" : {
+         "borderWidth" : 0,
+         "dataLabels" : {
+            "enabled" : 1,
+            "format" : "{point.y}"
+         }
+      }
+   },
+   "xAxis" : {
+      "type" : "category"
+   },
+   "series" : [
+      {
+         "name" : "Perl Weekly Challenge - 077",
+         "data" : [
+            {
+               "y" : 3,
+               "name" : "Adam Russell",
+               "drilldown" : "Adam Russell"
+            },
+            {
+               "y" : 2,
+               "name" : "Alexander Pankoff",
+               "drilldown" : "Alexander Pankoff"
+            },
+            {
+               "name" : "Andinus",
+               "y" : 2,
+               "drilldown" : "Andinus"
+            },
+            {
+               "drilldown" : "Andrew Shitov",
+               "name" : "Andrew Shitov",
+               "y" : 5
+            },
+            {
+               "y" : 3,
+               "name" : "Arne Sommer",
+               "drilldown" : "Arne Sommer"
+            },
+            {
+               "drilldown" : "Athanasius",
+               "name" : "Athanasius",
+               "y" : 4
+            },
+            {
+               "y" : 2,
+               "name" : "Bob Lied",
+               "drilldown" : "Bob Lied"
+            },
+            {
+               "name" : "Cheok-Yin Fung",
+               "y" : 3,
+               "drilldown" : "Cheok-Yin Fung"
+            },
+            {
+               "y" : 5,
+               "name" : "Colin Crain",
+               "drilldown" : "Colin Crain"
+            },
+            {
+               "y" : 2,
+               "name" : "Dave Jacoby",
+               "drilldown" : "Dave Jacoby"
+            },
+            {
+               "y" : 2,
+               "name" : "Duncan C. White",
+               "drilldown" : "Duncan C. White"
+            },
+            {
+               "drilldown" : "E. Choroba",
+               "y" : 2,
+               "name" : "E. Choroba"
+            },
+            {
+               "drilldown" : "Feng Chang",
+               "name" : "Feng Chang",
+               "y" : 2
+            },
+            {
+               "drilldown" : "Flavio Poletti",
+               "y" : 2,
+               "name" : "Flavio Poletti"
+            },
+            {
+               "name" : "Jan Krnavek",
+               "y" : 1,
+               "drilldown" : "Jan Krnavek"
+            },
+            {
+               "name" : "Jason Messer",
+               "y" : 2,
+               "drilldown" : "Jason Messer"
+            },
+            {
+               "drilldown" : "Jorg Sommrey",
+               "name" : "Jorg Sommrey",
+               "y" : 2
+            },
+            {
+               "name" : "Laurent Rosenfeld",
+               "y" : 5,
+               "drilldown" : "Laurent Rosenfeld"
+            },
+            {
+               "name" : "Lubos Kolouch",
+               "y" : 2,
+               "drilldown" : "Lubos Kolouch"
+            },
+            {
+               "name" : "Mark Anderson",
+               "y" : 2,
+               "drilldown" : "Mark Anderson"
+            },
+            {
+               "y" : 2,
+               "name" : "Markus Holzer",
+               "drilldown" : "Markus Holzer"
+            },
+            {
+               "y" : 5,
+               "name" : "Mohammad S Anwar",
+               "drilldown" : "Mohammad S Anwar"
+            },
+            {
+               "y" : 4,
+               "name" : "Myoungjin Jeon",
+               "drilldown" : "Myoungjin Jeon"
+            },
+            {
+               "drilldown" : "Niels van Dijke",
+               "y" : 2,
+               "name" : "Niels van Dijke"
+            },
+            {
+               "drilldown" : "Nuno Vieira",
+               "name" : "Nuno Vieira",
+               "y" : 2
+            },
+            {
+               "drilldown" : "P6steve",
+               "name" : "P6steve",
+               "y" : 2
+            },
+            {
+               "drilldown" : "Pete Houston",
+               "name" : "Pete Houston",
+               "y" : 2
+            },
+            {
+               "y" : 5,
+               "name" : "Roger Bell_West",
+               "drilldown" : "Roger Bell_West"
+            },
+            {
+               "drilldown" : "Shahed Nooshmand",
+               "y" : 3,
+               "name" : "Shahed Nooshmand"
+            },
+            {
+               "name" : "Simon Green",
+               "y" : 3,
+               "drilldown" : "Simon Green"
+            },
+            {
+               "drilldown" : "Simon Proctor",
+               "name" : "Simon Proctor",
+               "y" : 2
+            },
+            {
+               "drilldown" : "Ulrich Rieke",
+               "y" : 2,
+               "name" : "Ulrich Rieke"
+            },
+            {
+               "y" : 3,
+               "name" : "Walt Mankowski",
+               "drilldown" : "Walt Mankowski"
+            },
+            {
+               "y" : 1,
+               "name" : "Wanderdoc",
+               "drilldown" : "Wanderdoc"
+            }
+         ],
+         "colorByPoint" : 1
+      }
+   ]
+}
diff --git a/stats/pwc-current.json b/stats/pwc-current.json
index 13223411b4..e79f11c09f 100644
--- a/stats/pwc-current.json
+++ b/stats/pwc-current.json
@@ -1,205 +1,13 @@
 {
-   "series" : [
-      {
-         "colorByPoint" : 1,
-         "data" : [
-            {
-               "name" : "Adam Russell",
-               "y" : 3,
-               "drilldown" : "Adam Russell"
-            },
-            {
-               "name" : "Alexander Pankoff",
-               "drilldown" : "Alexander Pankoff",
-               "y" : 2
-            },
-            {
-               "drilldown" : "Andinus",
-               "y" : 2,
-               "name" : "Andinus"
-            },
-            {
-               "name" : "Andrew Shitov",
-               "y" : 5,
-               "drilldown" : "Andrew Shitov"
-            },
-            {
-               "name" : "Arne Sommer",
-               "drilldown" : "Arne Sommer",
-               "y" : 3
-            },
-            {
-               "name" : "Athanasius",
-               "y" : 4,
-               "drilldown" : "Athanasius"
-            },
-            {
-               "drilldown" : "Bob Lied",
-               "y" : 2,
-               "name" : "Bob Lied"
-            },
-            {
-               "y" : 3,
-               "drilldown" : "Cheok-Yin Fung",
-               "name" : "Cheok-Yin Fung"
-            },
-            {
-               "name" : "Colin Crain",
-               "y" : 5,
-               "drilldown" : "Colin Crain"
-            },
-            {
-               "name" : "Dave Jacoby",
-               "y" : 2,
-               "drilldown" : "Dave Jacoby"
-            },
-            {
-               "name" : "Duncan C. White",
-               "y" : 2,
-               "drilldown" : "Duncan C. White"
-            },
-            {
-               "drilldown" : "E. Choroba",
-               "y" : 2,
-               "name" : "E. Choroba"
-            },
-            {
-               "y" : 2,
-               "drilldown" : "Feng Chang",
-               "name" : "Feng Chang"
-            },
-            {
-               "name" : "Flavio Poletti",
-               "drilldown" : "Flavio Poletti",
-               "y" : 2
-            },
-            {
-               "name" : "Jan Krnavek",
-               "y" : 1,
-               "drilldown" : "Jan Krnavek"
-            },
-            {
-               "name" : "Jason Messer",
-               "drilldown" : "Jason Messer",
-               "y" : 2
-            },
-            {
-               "name" : "Jorg Sommrey",
-               "y" : 2,
-               "drilldown" : "Jorg Sommrey"
-            },
-            {
-               "y" : 5,
-               "drilldown" : "Laurent Rosenfeld",
-               "name" : "Laurent Rosenfeld"
-            },
-            {
-               "y" : 2,
-               "drilldown" : "Lubos Kolouch",
-               "name" : "Lubos Kolouch"
-            },
-            {
-               "y" : 2,
-               "drilldown" : "Mark Anderson",
-               "name" : "Mark Anderson"
-            },
-            {
-               "name" : "Markus Holzer",
-               "drilldown" : "Markus Holzer",
-               "y" : 2
-            },
-            {
-               "drilldown" : "Mohammad S Anwar",
-               "y" : 5,
-               "name" : "Mohammad S Anwar"
-            },
-            {
-               "y" : 4,
-               "drilldown" : "Myoungjin Jeon",
-               "name" : "Myoungjin Jeon"
-            },
-            {
-               "y" : 2,
-               "drilldown" : "Niels van Dijke",
-               "name" : "Niels van Dijke"
-            },
-            {
-               "drilldown" : "Nuno Vieira",
-               "y" : 2,
-               "name" : "Nuno Vieira"
-            },
-            {
-               "drilldown" : "P6steve",
-               "y" : 2,
-               "name" : "P6steve"
-            },
-            {
-               "y" : 2,
-               "drilldown" : "Pete Houston",
-               "name" : "Pete Houston"
-            },
-            {
-               "y" : 5,
-               "drilldown" : "Roger Bell_West",
-               "name" : "Roger Bell_West"
-            },
-            {
-               "name" : "Shahed Nooshmand",
-               "y" : 3,
-               "drilldown" : "Shahed Nooshmand"
-            },
-            {
-               "drilldown" : "Simon Green",
-               "y" : 3,
-               "name" : "Simon Green"
-            },
-            {
-               "name" : "Simon Proctor",
-               "drilldown" : "Simon Proctor",
-               "y" : 2
-            },
-            {
-               "name" : "Ulrich Rieke",
-               "drilldown" : "Ulrich Rieke",
-               "y" : 2
-            },
-            {
-               "y" : 3,
-               "drilldown" : "Walt Mankowski",
-               "name" : "Walt Mankowski"
-            },
-            {
-               "name" : "Wanderdoc",
-               "y" : 1,
-               "drilldown" : "Wanderdoc"
-            }
-         ],
-         "name" : "Perl Weekly Challenge - 077"
-      }
-   ],
    "title" : {
-      "text" : "Perl Weekly Challenge - 077"
-   },
-   "xAxis" : {
-      "type" : "category"
-   },
-   "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" : {
-         "borderWidth" : 0,
-         "dataLabels" : {
-            "enabled" : 1,
-            "format" : "{point.y}"
-         }
-      }
+      "text" : "Perl Weekly Challenge - 078"
    },
    "legend" : {
       "enabled" : 0
    },
+   "subtitle" : {
+      "text" : "[Champions: 1] Last updated at 2020-09-14 06:31:20 GMT"
+   },
    "yAxis" : {
       "title" : {
          "text" : "Total Solutions"
@@ -208,431 +16,48 @@
    "drilldown" : {
       "series" : [
          {
+            "id" : "Anton Fedotov",
+            "name" : "Anton Fedotov",
             "data" : [
                [
                   "Perl",
-                  2
-               ],
-               [
-                  "Blog",
-                  1
-               ]
-            ],
-            "name" : "Adam Russell",
-            "id" : "Adam Russell"
-         },
-         {
-            "data" : [
-               [
-                  "Perl",
-                  2
-               ]
-            ],
-            "name" : "Alexander Pankoff",
-            "id" : "Alexander Pankoff"
-         },
-         {
-            "name" : "Andinus",
-            "data" : [
-               [
-                  "Perl",
-                  1
-               ],
-               [
-                  "Blog",
-                  1
-               ]
-            ],
-            "id" : "Andinus"
-         },
-         {
-            "data" : [
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-                  "Perl",
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-               [
-                  "Raku",
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-               ],
-               [
-                  "Blog",
-                  2
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-            "name" : "Andrew Shitov",
-            "id" : "Andrew Shitov"
-         },
-         {
-            "id" : "Arne Sommer",
-            "name" : "Arne Sommer",
-            "data" : [
-               [
-                  "Raku",
-                  2
-               ],
-               [
-                  "Blog",
-                  1
-               ]
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-         },
-         {
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-               [
-                  "Perl",
-                  2
-               ],
-               [
-                  "Raku",
-                  2
-               ]
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-            "name" : "Athanasius",
-            "id" : "Athanasius"
-         },
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