- Added solution by Andrew Shitov.

12 files changed, 1215 insertions, 1207 deletions

diff --git a/stats/pwc-current.json b/stats/pwc-current.json
index a78f76f4f2..a438b0ed42 100644
--- a/stats/pwc-current.json
+++ b/stats/pwc-current.json
@@ -1,99 +1,21 @@
 {
-   "yAxis" : {
-      "title" : {
-         "text" : "Total Solutions"
-      }
+   "chart" : {
+      "type" : "column"
    },
    "xAxis" : {
       "type" : "category"
    },
-   "series" : [
-      {
-         "name" : "Perl Weekly Challenge - 077",
-         "colorByPoint" : 1,
-         "data" : [
-            {
-               "name" : "Andinus",
-               "drilldown" : "Andinus",
-               "y" : 2
-            },
-            {
-               "drilldown" : "Andrew Shitov",
-               "name" : "Andrew Shitov",
-               "y" : 4
-            },
-            {
-               "y" : 2,
-               "drilldown" : "Dave Jacoby",
-               "name" : "Dave Jacoby"
-            },
-            {
-               "y" : 2,
-               "name" : "E. Choroba",
-               "drilldown" : "E. Choroba"
-            },
-            {
-               "y" : 2,
-               "drilldown" : "Feng Chang",
-               "name" : "Feng Chang"
-            },
-            {
-               "name" : "Jorg Sommrey",
-               "drilldown" : "Jorg Sommrey",
-               "y" : 2
-            },
-            {
-               "drilldown" : "Laurent Rosenfeld",
-               "name" : "Laurent Rosenfeld",
-               "y" : 5
-            },
-            {
-               "y" : 2,
-               "drilldown" : "Mark Anderson",
-               "name" : "Mark Anderson"
-            },
-            {
-               "y" : 4,
-               "name" : "Mohammad S Anwar",
-               "drilldown" : "Mohammad S Anwar"
-            },
-            {
-               "drilldown" : "Myoungjin Jeon",
-               "name" : "Myoungjin Jeon",
-               "y" : 2
-            },
-            {
-               "y" : 2,
-               "drilldown" : "Nuno Vieira",
-               "name" : "Nuno Vieira"
-            },
-            {
-               "y" : 5,
-               "name" : "Roger Bell_West",
-               "drilldown" : "Roger Bell_West"
-            },
-            {
-               "name" : "Simon Proctor",
-               "drilldown" : "Simon Proctor",
-               "y" : 2
-            },
-            {
-               "y" : 2,
-               "drilldown" : "Ulrich Rieke",
-               "name" : "Ulrich Rieke"
-            },
-            {
-               "drilldown" : "Walt Mankowski",
-               "name" : "Walt Mankowski",
-               "y" : 3
-            }
-         ]
-      }
-   ],
+   "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/>"
+   },
+   "legend" : {
+      "enabled" : 0
+   },
    "drilldown" : {
       "series" : [
          {
-            "name" : "Andinus",
             "id" : "Andinus",
             "data" : [
                [
@@ -104,12 +26,17 @@
                   "Blog",
                   1
                ]
-            ]
+            ],
+            "name" : "Andinus"
          },
          {
             "id" : "Andrew Shitov",
             "data" : [
                [
+                  "Perl",
+                  1
+               ],
+               [
                   "Raku",
                   2
                ],
@@ -132,33 +59,33 @@
          },
          {
             "name" : "E. Choroba",
+            "id" : "E. Choroba",
             "data" : [
                [
                   "Perl",
                   2
                ]
-            ],
-            "id" : "E. Choroba"
+            ]
          },
          {
-            "name" : "Feng Chang",
+            "id" : "Feng Chang",
             "data" : [
                [
                   "Raku",
                   2
                ]
             ],
-            "id" : "Feng Chang"
+            "name" : "Feng Chang"
          },
          {
+            "name" : "Jorg Sommrey",
+            "id" : "Jorg Sommrey",
             "data" : [
                [
                   "Perl",
                   2
                ]
-            ],
-            "id" : "Jorg Sommrey",
-            "name" : "Jorg Sommrey"
+            ]
          },
          {
             "name" : "Laurent Rosenfeld",
@@ -179,17 +106,18 @@
             "id" : "Laurent Rosenfeld"
          },
          {
-            "id" : "Mark Anderson",
             "data" : [
                [
                   "Raku",
                   2
                ]
             ],
+            "id" : "Mark Anderson",
             "name" : "Mark Anderson"
          },
          {
             "name" : "Mohammad S Anwar",
+            "id" : "Mohammad S Anwar",
             "data" : [
                [
                   "Perl",
@@ -199,30 +127,30 @@
                   "Raku",
                   2
                ]
-            ],
-            "id" : "Mohammad S Anwar"
+            ]
          },
          {
             "name" : "Myoungjin Jeon",
+            "id" : "Myoungjin Jeon",
             "data" : [
                [
                   "Perl",
                   2
                ]
-            ],
-            "id" : "Myoungjin Jeon"
+            ]
          },
          {
+            "name" : "Nuno Vieira",
             "data" : [
                [
                   "Perl",
                   2
                ]
             ],
-            "id" : "Nuno Vieira",
-            "name" : "Nuno Vieira"
+            "id" : "Nuno Vieira"
          },
          {
+            "name" : "Roger Bell_West",
             "id" : "Roger Bell_West",
             "data" : [
                [
@@ -237,18 +165,17 @@
                   "Blog",
                   1
                ]
-            ],
-            "name" : "Roger Bell_West"
+            ]
          },
          {
-            "name" : "Simon Proctor",
             "data" : [
                [
                   "Raku",
                   2
                ]
             ],
-            "id" : "Simon Proctor"
+            "id" : "Simon Proctor",
+            "name" : "Simon Proctor"
          },
          {
             "name" : "Ulrich Rieke",
@@ -265,6 +192,7 @@
             ]
          },
          {
+            "name" : "Walt Mankowski",
             "id" : "Walt Mankowski",
             "data" : [
                [
@@ -275,35 +203,111 @@
                   "Blog",
                   1
                ]
-            ],
-            "name" : "Walt Mankowski"
+            ]
          }
       ]
    },
-   "chart" : {
-      "type" : "column"
+   "series" : [
+      {
+         "name" : "Perl Weekly Challenge - 077",
+         "data" : [
+            {
+               "name" : "Andinus",
+               "drilldown" : "Andinus",
+               "y" : 2
+            },
+            {
+               "y" : 5,
+               "drilldown" : "Andrew Shitov",
+               "name" : "Andrew Shitov"
+            },
+            {
+               "y" : 2,
+               "name" : "Dave Jacoby",
+               "drilldown" : "Dave Jacoby"
+            },
+            {
+               "name" : "E. Choroba",
+               "drilldown" : "E. Choroba",
+               "y" : 2
+            },
+            {
+               "name" : "Feng Chang",
+               "drilldown" : "Feng Chang",
+               "y" : 2
+            },
+            {
+               "drilldown" : "Jorg Sommrey",
+               "name" : "Jorg Sommrey",
+               "y" : 2
+            },
+            {
+               "drilldown" : "Laurent Rosenfeld",
+               "name" : "Laurent Rosenfeld",
+               "y" : 5
+            },
+            {
+               "drilldown" : "Mark Anderson",
+               "name" : "Mark Anderson",
+               "y" : 2
+            },
+            {
+               "name" : "Mohammad S Anwar",
+               "drilldown" : "Mohammad S Anwar",
+               "y" : 4
+            },
+            {
+               "y" : 2,
+               "drilldown" : "Myoungjin Jeon",
+               "name" : "Myoungjin Jeon"
+            },
+            {
+               "drilldown" : "Nuno Vieira",
+               "name" : "Nuno Vieira",
+               "y" : 2
+            },
+            {
+               "y" : 5,
+               "drilldown" : "Roger Bell_West",
+               "name" : "Roger Bell_West"
+            },
+            {
+               "drilldown" : "Simon Proctor",
+               "name" : "Simon Proctor",
+               "y" : 2
+            },
+            {
+               "name" : "Ulrich Rieke",
+               "drilldown" : "Ulrich Rieke",
+               "y" : 2
+            },
+            {
+               "name" : "Walt Mankowski",
+               "drilldown" : "Walt Mankowski",
+               "y" : 3
+            }
+         ],
+         "colorByPoint" : 1
+      }
+   ],
+   "title" : {
+      "text" : "Perl Weekly Challenge - 077"
    },
-   "legend" : {
-      "enabled" : 0
+   "subtitle" : {
+      "text" : "[Champions: 15] Last updated at 2020-09-11 09:05:06 GMT"
+   },
+   "yAxis" : {
+      "title" : {
+         "text" : "Total Solutions"
+      }
    },
    "plotOptions" : {
       "series" : {
-         "borderWidth" : 0,
          "dataLabels" : {
             "enabled" : 1,
             "format" : "{point.y}"
-         }
+         },
+         "borderWidth" : 0
       }
-   },
-   "tooltip" : {
-      "pointFormat" : "<span style='color:{point.color}'>{point.name}</span>: <b>{point.y:f}</b><br/>",
-      "headerFormat" : "<span style='font-size:11px'>{series.name}</span><br/>",
-      "followPointer" : 1
-   },
-   "title" : {
-      "text" : "Perl Weekly Challenge - 077"
-   },
-   "subtitle" : {
-      "text" : "[Champions: 15] Last updated at 2020-09-11 06:37:49 GMT"
    }
 }
diff --git a/stats/pwc-language-breakdown-summary.json b/stats/pwc-language-breakdown-summary.json
index cd72948efa..277bbf3b73 100644
--- a/stats/pwc-language-breakdown-summary.json
+++ b/stats/pwc-language-breakdown-summary.json
@@ -1,34 +1,21 @@
 {
    "subtitle" : {
-      "text" : "Last updated at 2020-09-11 06:37:49 GMT"
+      "text" : "Last updated at 2020-09-11 09:05:06 GMT"
    },
    "title" : {
       "text" : "Perl Weekly Challenge Contributions [2019 - 2020]"
    },
-   "tooltip" : {
-      "pointFormat" : "<b>{point.y:.0f}</b>"
+   "yAxis" : {
+      "min" : 0,
+      "title" : {
+         "text" : null
+      }
    },
    "legend" : {
       "enabled" : "false"
    },
-   "chart" : {
-      "type" : "column"
-   },
    "series" : [
       {
-         "dataLabels" : {
-            "style" : {
-               "fontFamily" : "Verdana, sans-serif",
-               "fontSize" : "13px"
-            },
-            "rotation" : -90,
-            "align" : "right",
-            "format" : "{point.y:.0f}",
-            "y" : 10,
-            "enabled" : "true",
-            "color" : "#FFFFFF"
-         },
-         "name" : "Contributions",
          "data" : [
             [
                "Blog",
@@ -36,28 +23,41 @@
             ],
             [
                "Perl",
-               3225
+               3226
             ],
             [
                "Raku",
                2103
             ]
-         ]
+         ],
+         "dataLabels" : {
+            "color" : "#FFFFFF",
+            "style" : {
+               "fontSize" : "13px",
+               "fontFamily" : "Verdana, sans-serif"
+            },
+            "rotation" : -90,
+            "enabled" : "true",
+            "align" : "right",
+            "format" : "{point.y:.0f}",
+            "y" : 10
+         },
+         "name" : "Contributions"
       }
    ],
+   "tooltip" : {
+      "pointFormat" : "<b>{point.y:.0f}</b>"
+   },
+   "chart" : {
+      "type" : "column"
+   },
    "xAxis" : {
+      "type" : "category",
       "labels" : {
          "style" : {
-            "fontFamily" : "Verdana, sans-serif",
-            "fontSize" : "13px"
+            "fontSize" : "13px",
+            "fontFamily" : "Verdana, sans-serif"
          }
-      },
-      "type" : "category"
-   },
-   "yAxis" : {
-      "min" : 0,
-      "title" : {
-         "text" : null
       }
    }
 }
diff --git a/stats/pwc-language-breakdown.json b/stats/pwc-language-breakdown.json
index 5a5bc2bcab..5a33208b49 100644
--- a/stats/pwc-language-breakdown.json
+++ b/stats/pwc-language-breakdown.json
@@ -1,9 +1,15 @@
 {
    "tooltip" : {
-      "followPointer" : "true",
       "headerFormat" : "<span style=\"font-size:11px\"></span>",
+      "followPointer" : "true",
       "pointFormat" : "<span style=\"color:{point.color}\">Challenge {point.name}</span>: <b>{point.y:f}</b><br/>"
    },
+   "xAxis" : {
+      "type" : "category"
+   },
+   "chart" : {
+      "type" : "column"
+   },
    "plotOptions" : {
       "series" : {
          "borderWidth" : 0,
@@ -13,22 +19,20 @@
          }
       }
    },
-   "title" : {
-      "text" : "Perl Weekly Challenge Language"
-   },
-   "subtitle" : {
-      "text" : "Click the columns to drilldown the language breakdown. Last updated at 2020-09-11 06:37:49 GMT"
-   },
    "yAxis" : {
       "title" : {
          "text" : "Total Solutions"
       }
    },
+   "subtitle" : {
+      "text" : "Click the columns to drilldown the language breakdown. Last updated at 2020-09-11 09:05:06 GMT"
+   },
+   "title" : {
+      "text" : "Perl Weekly Challenge Language"
+   },
    "drilldown" : {
       "series" : [
          {
-            "name" : "001",
-            "id" : "001",
             "data" : [
                [
                   "Perl",
@@ -42,10 +46,11 @@
                   "Blog",
                   11
                ]
-            ]
+            ],
+            "id" : "001",
+            "name" : "001"
          },
          {
-            "id" : "002",
             "data" : [
                [
                   "Perl",
@@ -60,11 +65,11 @@
                   10
                ]
             ],
+            "id" : "002",
             "name" : "002"
          },
          {
             "name" : "003",
-            "id" : "003",
             "data" : [
                [
                   "Perl",
@@ -78,9 +83,11 @@
                   "Blog",
                   9
                ]
-            ]
+            ],
+            "id" : "003"
          },
          {
+            "name" : "004",
             "data" : [
                [
                   "Perl",
@@ -95,10 +102,10 @@
                   10
                ]
             ],
-            "id" : "004",
-            "name" : "004"
+            "id" : "004"
          },
          {
+            "name" : "005",
             "data" : [
                [
                   "Perl",
@@ -113,11 +120,10 @@
                   12
                ]
             ],
-            "id" : "005",
-            "name" : "005"
+            "id" : "005"
          },
          {
-            "name" : "006",
+            "id" : "006",
             "data" : [
                [
                   "Perl",
@@ -132,9 +138,10 @@
                   7
                ]
             ],
-            "id" : "006"
+            "name" : "006"
          },
          {
+            "name" : "007",
             "data" : [
                [
                   "Perl",
@@ -149,8 +156,7 @@
                   10
                ]
             ],
-            "id" : "007",
-            "name" : "007"
+            "id" : "007"
          },
          {
             "name" : "008",
@@ -171,8 +177,6 @@
             ]
          },
          {
-            "name" : "009",
-            "id" : "009",
             "data" : [
                [
                   "Perl",
@@ -186,11 +190,12 @@
                   "Blog",
                   13
                ]
-            ]
+            ],
+            "id" : "009",
+            "name" : "009"
          },
          {
             "name" : "010",
-            "id" : "010",
             "data" : [
                [
                   "Perl",
@@ -204,9 +209,11 @@
                   "Blog",
                   11
                ]
-            ]
+            ],
+            "id" : "010"
          },
          {
+            "name" : "011",
             "data" : [
                [
                   "Perl",
@@ -221,10 +228,11 @@
                   10
                ]
             ],
-            "id" : "011",
-            "name" : "011"
+            "id" : "011"
          },
          {
+            "name" : "012",
+            "id" : "012",
             "data" : [
                [
                   "Perl",
@@ -238,11 +246,10 @@
                   "Blog",
                   11
                ]
-            ],
-            "id" : "012",
-            "name" : "012"
+            ]
          },
          {
+            "id" : "013",
             "data" : [
                [
                   "Perl",
@@ -257,11 +264,9 @@
                   13
                ]
             ],
-            "id" : "013",
             "name" : "013"
          },
          {
-            "id" : "014",
             "data" : [
                [
                   "Perl",
@@ -276,9 +281,12 @@
                   15
                ]
             ],
+            "id" : "014",
             "name" : "014"
          },
          {
+            "name" : "015",
+            "id" : "015",
             "data" : [
                [
                   "Perl",
@@ -292,12 +300,9 @@
                   "Blog",
                   15
                ]
-            ],
-            "id" : "015",
-            "name" : "015"
+            ]
          },
          {
-            "id" : "016",
             "data" : [
                [
                   "Perl",
@@ -312,10 +317,12 @@
                   12
                ]
             ],
+            "id" : "016",
             "name" : "016"
          },
          {
             "name" : "017",
+            "id" : "017",
             "data" : [
                [
                   "Perl",
@@ -329,11 +336,10 @@
                   "Blog",
                   12
                ]
-            ],
-            "id" : "017"
+            ]
          },
          {
-            "name" : "018",
+            "id" : "018",
             "data" : [
                [
                   "Perl",
@@ -348,11 +354,10 @@
                   14
                ]
             ],
-            "id" : "018"
+            "name" : "018"
          },
          {
             "name" : "019",
-            "id" : "019",
             "data" : [
                [
                   "Perl",
@@ -366,9 +371,11 @@
                   "Blog",
                   13
                ]
-            ]
+            ],
+            "id" : "019"
          },
          {
+            "name" : "020",
             "data" : [
                [
                   "Perl",
@@ -383,11 +390,9 @@
                   13
                ]
             ],
-            "id" : "020",
-            "name" : "020"
+            "id" : "020"
          },
          {
-            "name" : "021",
             "data" : [
                [
                   "Perl",
@@ -402,10 +407,10 @@
                   10
                ]
             ],
-            "id" : "021"
+            "id" : "021",
+            "name" : "021"
          },
          {
-            "id" : "022",
             "data" : [
                [
                   "Perl",
@@ -420,10 +425,10 @@
                   10
                ]
             ],
+            "id" : "022",
             "name" : "022"
          },
          {
-            "name" : "023",
             "id" : "023",
             "data" : [
                [
@@ -438,7 +443,8 @@
                   "Blog",
                   12
                ]
-            ]
+            ],
+            "name" : "023"
          },
          {
             "name" : "024",
@@ -459,7 +465,7 @@
             "id" : "024"
          },
          {
-            "id" : "025",
+            "name" : "025",
             "data" : [
                [
                   "Perl",
@@ -474,7 +480,7 @@
                   12
                ]
             ],
-            "name" : "025"
+            "id" : "025"
          },
          {
             "name" : "026",
@@ -495,8 +501,6 @@
             "id" : "026"
          },
          {
-            "name" : "027",
-            "id" : "027",
             "data" : [
                [
                   "Perl",
@@ -510,10 +514,12 @@
                   "Blog",
                   9
                ]
-            ]
+            ],
+            "id" : "027",
+            "name" : "027"
          },
          {
-            "name" : "028",
+            "id" : "028",
             "data" : [
                [
                   "Perl",
@@ -528,10 +534,10 @@
                   9
                ]
             ],
-            "id" : "028"
+            "name" : "028"
          },
          {
-            "name" : "029",
+            "id" : "029",
             "data" : [
                [
                   "Perl",
@@ -546,11 +552,9 @@
                   12
                ]
             ],
-            "id" : "029"
+            "name" : "029"
          },
          {
-            "name" : "030",
-            "id" : "030",
             "data" : [
                [
                   "Perl",
@@ -564,10 +568,12 @@
                   "Blog",
                   10
                ]
-            ]
+            ],
+            "id" : "030",
+            "name" : "030"
          },
          {
-            "id" : "031",
+            "name" : "031",
             "data" : [
                [
                   "Perl",
@@ -582,10 +588,9 @@
                   9
                ]
             ],
-            "name" : "031"
+            "id" : "031"
          },
          {
-            "name" : "032",
             "id" : "032",
             "data" : [
                [
@@ -600,9 +605,12 @@
                   "Blog",
                   10
                ]
-            ]
+            ],
+            "name" : "032"
          },
          {
+            "name" : "033",
+            "id" : "033",
             "data" : [
                [
                   "Perl",
@@ -616,11 +624,10 @@
                   "Blog",
                   10
                ]
-            ],
-            "id" : "033",
-            "name" : "033"
+            ]
          },
          {
+            "id" : "034",
             "data" : [
                [
                   "Perl",
@@ -635,12 +642,9 @@
                   11
                ]
             ],
-            "id" : "034",
             "name" : "034"
          },
          {
-            "name" : "035",
-            "id" : "035",
             "data" : [
                [
                   "Perl",
@@ -654,10 +658,12 @@
                   "Blog",
                   9
                ]
-            ]
+            ],
+            "id" : "035",
+            "name" : "035"
          },
          {
-            "name" : "036",
+            "id" : "036",
             "data" : [
                [
                   "Perl",
@@ -672,10 +678,10 @@
                   11
                ]
             ],
-            "id" : "036"
+            "name" : "036"
          },
          {
-            "name" : "037",
+            "id" : "037",
             "data" : [
                [
                   "Perl",
@@ -690,10 +696,10 @@
                   9
                ]
             ],
-            "id" : "037"
+            "name" : "037"
          },
          {
-            "name" : "038",
+            "id" : "038",
             "data" : [
                [
                   "Perl",
@@ -708,9 +714,11 @@
                   12
                ]
             ],
-            "id" : "038"
+            "name" : "038"
          },
          {
+            "name" : "039",
+            "id" : "039",
             "data" : [
                [
                   "Perl",
@@ -724,9 +732,7 @@
                   "Blog",
                   12
                ]
-            ],
-            "id" : "039",
-            "name" : "039"
+            ]
          },
          {
             "id" : "040",
@@ -783,6 +789,7 @@
             "name" : "042"
          },
          {
+            "id" : "043",
             "data" : [
                [
                   "Perl",
@@ -797,12 +804,9 @@
                   11
                ]
             ],
-            "id" : "043",
             "name" : "043"
          },
          {
-            "name" : "044",
-            "id" : "044",
             "data" : [
                [
                   "Perl",
@@ -816,7 +820,9 @@
                   "Blog",
                   11
                ]
-            ]
+            ],
+            "id" : "044",
+            "name" : "044"
          },
          {
             "name" : "045",
@@ -837,6 +843,7 @@
             "id" : "045"
          },
          {
+            "id" : "046",
             "data" : [
                [
                   "Perl",
@@ -851,12 +858,10 @@
                   10
                ]
             ],
-            "id" : "046",
             "name" : "046"
          },
          {
             "name" : "047",
-            "id" : "047",
             "data" : [
                [
                   "Perl",
@@ -870,9 +875,11 @@
                   "Blog",
                   10
                ]
-            ]
+            ],
+            "id" : "047"
          },
          {
+            "name" : "048",
             "data" : [
                [
                   "Perl",
@@ -887,11 +894,9 @@
                   12
                ]
             ],
-            "id" : "048",
-            "name" : "048"
+            "id" : "048"
          },
          {
-            "name" : "049",
             "id" : "049",
             "data" : [
                [
@@ -906,7 +911,8 @@
                   "Blog",
                   12
                ]
-            ]
+            ],
+            "name" : "049"
          },
          {
             "id" : "050",
@@ -927,7 +933,7 @@
             "name" : "050"
          },
          {
-            "name" : "051",
+            "id" : "051",
             "data" : [
                [
                   "Perl",
@@ -942,7 +948,7 @@
                   11
                ]
             ],
-            "id" : "051"
+            "name" : "051"
          },
          {
             "name" : "052",
@@ -963,6 +969,7 @@
             ]
          },
          {
+            "name" : "053",
             "data" : [
                [
                   "Perl",
@@ -977,11 +984,10 @@
                   15
                ]
             ],
-            "id" : "053",
-            "name" : "053"
+            "id" : "053"
          },
          {
-            "id" : "054",
+            "name" : "054",
             "data" : [
                [
                   "Perl",
@@ -996,9 +1002,10 @@
                   18
                ]
             ],
-            "name" : "054"
+            "id" : "054"
          },