- Added solutions by Kang-min Liu.

12 files changed, 1069 insertions, 1050 deletions

diff --git a/stats/pwc-current.json b/stats/pwc-current.json
index 06a709f7a7..1e3c4908b9 100644
--- a/stats/pwc-current.json
+++ b/stats/pwc-current.json
@@ -1,67 +1,94 @@
 {
+   "title" : {
+      "text" : "Perl Weekly Challenge - 080"
+   },
    "yAxis" : {
       "title" : {
          "text" : "Total Solutions"
       }
    },
-   "title" : {
-      "text" : "Perl Weekly Challenge - 080"
-   },
    "plotOptions" : {
       "series" : {
+         "borderWidth" : 0,
          "dataLabels" : {
             "enabled" : 1,
             "format" : "{point.y}"
-         },
-         "borderWidth" : 0
+         }
       }
    },
+   "legend" : {
+      "enabled" : 0
+   },
    "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
+   },
+   "subtitle" : {
+      "text" : "[Champions: 7] Last updated at 2020-09-29 05:07:24 GMT"
+   },
    "drilldown" : {
       "series" : [
          {
-            "id" : "Lubos Kolouch",
             "data" : [
                [
                   "Perl",
                   2
+               ],
+               [
+                  "Raku",
+                  2
                ]
             ],
-            "name" : "Lubos Kolouch"
+            "id" : "Kang-min Liu",
+            "name" : "Kang-min Liu"
          },
          {
+            "name" : "Lubos Kolouch",
+            "id" : "Lubos Kolouch",
             "data" : [
                [
-                  "Raku",
+                  "Perl",
                   2
                ]
-            ],
+            ]
+         },
+         {
+            "name" : "Mark Anderson",
             "id" : "Mark Anderson",
-            "name" : "Mark Anderson"
+            "data" : [
+               [
+                  "Raku",
+                  2
+               ]
+            ]
          },
          {
-            "id" : "Myoungjin Jeon",
             "data" : [
                [
                   "Blog",
                   1
                ]
             ],
+            "id" : "Myoungjin Jeon",
             "name" : "Myoungjin Jeon"
          },
          {
+            "id" : "Niels van Dijke",
             "name" : "Niels van Dijke",
             "data" : [
                [
                   "Perl",
                   2
                ]
-            ],
-            "id" : "Niels van Dijke"
+            ]
          },
          {
+            "id" : "Roger Bell_West",
+            "name" : "Roger Bell_West",
             "data" : [
                [
                   "Perl",
@@ -71,61 +98,56 @@
                   "Raku",
                   2
                ]
-            ],
-            "id" : "Roger Bell_West",
-            "name" : "Roger Bell_West"
+            ]
          },
          {
+            "id" : "Simon Proctor",
+            "name" : "Simon Proctor",
             "data" : [
                [
                   "Raku",
                   2
                ]
-            ],
-            "id" : "Simon Proctor",
-            "name" : "Simon Proctor"
+            ]
          }
       ]
    },
-   "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/>"
-   },
-   "legend" : {
-      "enabled" : 0
-   },
    "series" : [
       {
          "data" : [
             {
+               "name" : "Kang-min Liu",
+               "drilldown" : "Kang-min Liu",
+               "y" : 4
+            },
+            {
                "y" : 2,
-               "drilldown" : "Lubos Kolouch",
-               "name" : "Lubos Kolouch"
+               "name" : "Lubos Kolouch",
+               "drilldown" : "Lubos Kolouch"
             },
             {
-               "drilldown" : "Mark Anderson",
+               "y" : 2,
                "name" : "Mark Anderson",
-               "y" : 2
+               "drilldown" : "Mark Anderson"
             },
             {
-               "y" : 1,
                "name" : "Myoungjin Jeon",
-               "drilldown" : "Myoungjin Jeon"
+               "drilldown" : "Myoungjin Jeon",
+               "y" : 1
             },
             {
-               "name" : "Niels van Dijke",
                "drilldown" : "Niels van Dijke",
+               "name" : "Niels van Dijke",
                "y" : 2
             },
             {
-               "name" : "Roger Bell_West",
                "drilldown" : "Roger Bell_West",
+               "name" : "Roger Bell_West",
                "y" : 4
             },
             {
-               "drilldown" : "Simon Proctor",
                "name" : "Simon Proctor",
+               "drilldown" : "Simon Proctor",
                "y" : 2
             }
          ],
@@ -133,9 +155,6 @@
          "name" : "Perl Weekly Challenge - 080"
       }
    ],
-   "subtitle" : {
-      "text" : "[Champions: 6] Last updated at 2020-09-29 04:58:31 GMT"
-   },
    "xAxis" : {
       "type" : "category"
    }
diff --git a/stats/pwc-language-breakdown-summary.json b/stats/pwc-language-breakdown-summary.json
index 59e7240113..9fc992976b 100644
--- a/stats/pwc-language-breakdown-summary.json
+++ b/stats/pwc-language-breakdown-summary.json
@@ -1,34 +1,34 @@
 {
-   "chart" : {
-      "type" : "column"
+   "legend" : {
+      "enabled" : "false"
    },
    "yAxis" : {
+      "min" : 0,
       "title" : {
          "text" : null
-      },
-      "min" : 0
+      }
+   },
+   "chart" : {
+      "type" : "column"
    },
    "title" : {
       "text" : "Perl Weekly Challenge Contributions [2019 - 2020]"
    },
    "xAxis" : {
+      "type" : "category",
       "labels" : {
          "style" : {
-            "fontFamily" : "Verdana, sans-serif",
-            "fontSize" : "13px"
+            "fontSize" : "13px",
+            "fontFamily" : "Verdana, sans-serif"
          }
-      },
-      "type" : "category"
-   },
-   "subtitle" : {
-      "text" : "Last updated at 2020-09-29 04:58:31 GMT"
-   },
-   "legend" : {
-      "enabled" : "false"
+      }
    },
    "tooltip" : {
       "pointFormat" : "<b>{point.y:.0f}</b>"
    },
+   "subtitle" : {
+      "text" : "Last updated at 2020-09-29 05:07:24 GMT"
+   },
    "series" : [
       {
          "data" : [
@@ -38,24 +38,24 @@
             ],
             [
                "Perl",
-               3390
+               3392
             ],
             [
                "Raku",
-               2196
+               2198
             ]
          ],
          "dataLabels" : {
-            "enabled" : "true",
             "color" : "#FFFFFF",
-            "rotation" : -90,
-            "y" : 10,
             "style" : {
                "fontFamily" : "Verdana, sans-serif",
                "fontSize" : "13px"
             },
-            "align" : "right",
-            "format" : "{point.y:.0f}"
+            "y" : 10,
+            "rotation" : -90,
+            "enabled" : "true",
+            "format" : "{point.y:.0f}",
+            "align" : "right"
          },
          "name" : "Contributions"
       }
diff --git a/stats/pwc-language-breakdown.json b/stats/pwc-language-breakdown.json
index e264bad9f3..2c3815b9b1 100644
--- a/stats/pwc-language-breakdown.json
+++ b/stats/pwc-language-breakdown.json
@@ -1,20 +1,38 @@
 {
-   "chart" : {
-      "type" : "column"
-   },
    "plotOptions" : {
       "series" : {
-         "borderWidth" : 0,
          "dataLabels" : {
             "enabled" : 1,
             "format" : "{point.y}"
-         }
+         },
+         "borderWidth" : 0
+      }
+   },
+   "yAxis" : {
+      "title" : {
+         "text" : "Total Solutions"
       }
    },
+   "legend" : {
+      "enabled" : "false"
+   },
+   "chart" : {
+      "type" : "column"
+   },
+   "title" : {
+      "text" : "Perl Weekly Challenge Language"
+   },
+   "xAxis" : {
+      "type" : "category"
+   },
+   "tooltip" : {
+      "pointFormat" : "<span style=\"color:{point.color}\">Challenge {point.name}</span>: <b>{point.y:f}</b><br/>",
+      "followPointer" : "true",
+      "headerFormat" : "<span style=\"font-size:11px\"></span>"
+   },
    "drilldown" : {
       "series" : [
          {
-            "name" : "001",
             "data" : [
                [
                   "Perl",
@@ -29,10 +47,10 @@
                   11
                ]
             ],
-            "id" : "001"
+            "id" : "001",
+            "name" : "001"
          },
          {
-            "id" : "002",
             "data" : [
                [
                   "Perl",
@@ -47,11 +65,12 @@
                   10
                ]
             ],
+            "id" : "002",
             "name" : "002"
          },
          {
-            "name" : "003",
             "id" : "003",
+            "name" : "003",
             "data" : [
                [
                   "Perl",
@@ -68,6 +87,7 @@
             ]
          },
          {
+            "name" : "004",
             "id" : "004",
             "data" : [
                [
@@ -82,12 +102,9 @@
                   "Blog",
                   10
                ]
-            ],
-            "name" : "004"
+            ]
          },
          {
-            "name" : "005",
-            "id" : "005",
             "data" : [
                [
                   "Perl",
@@ -101,9 +118,13 @@
                   "Blog",
                   12
                ]
-            ]
+            ],
+            "name" : "005",
+            "id" : "005"
          },
          {
+            "id" : "006",
+            "name" : "006",
             "data" : [
                [
                   "Perl",
@@ -117,9 +138,7 @@
                   "Blog",
                   7
                ]
-            ],
-            "id" : "006",
-            "name" : "006"
+            ]
          },
          {
             "name" : "007",
@@ -141,6 +160,7 @@
          },
          {
             "name" : "008",
+            "id" : "008",
             "data" : [
                [
                   "Perl",
@@ -154,10 +174,10 @@
                   "Blog",
                   12
                ]
-            ],
-            "id" : "008"
+            ]
          },
          {
+            "id" : "009",
             "name" : "009",
             "data" : [
                [
@@ -172,8 +192,7 @@
                   "Blog",
                   13
                ]
-            ],
-            "id" : "009"
+            ]
          },
          {
             "name" : "010",
@@ -208,10 +227,11 @@
                   10
                ]
             ],
-            "id" : "011",
-            "name" : "011"
+            "name" : "011",
+            "id" : "011"
          },
          {
+            "id" : "012",
             "name" : "012",
             "data" : [
                [
@@ -226,8 +246,7 @@
                   "Blog",
                   11
                ]
-            ],
-            "id" : "012"
+            ]
          },
          {
             "data" : [
@@ -248,6 +267,7 @@
             "name" : "013"
          },
          {
+            "name" : "014",
             "id" : "014",
             "data" : [
                [
@@ -262,11 +282,11 @@
                   "Blog",
                   15
                ]
-            ],
-            "name" : "014"
+            ]
          },
          {
             "id" : "015",
+            "name" : "015",
             "data" : [
                [
                   "Perl",
@@ -280,10 +300,11 @@
                   "Blog",
                   15
                ]
-            ],
-            "name" : "015"
+            ]
          },
          {
+            "id" : "016",
+            "name" : "016",
             "data" : [
                [
                   "Perl",
@@ -297,12 +318,9 @@
                   "Blog",
                   12
                ]
-            ],
-            "id" : "016",
-            "name" : "016"
+            ]
          },
          {
-            "id" : "017",
             "data" : [
                [
                   "Perl",
@@ -317,9 +335,12 @@
                   12
                ]
             ],
-            "name" : "017"
+            "name" : "017",
+            "id" : "017"
          },
          {
+            "name" : "018",
+            "id" : "018",
             "data" : [
                [
                   "Perl",
@@ -333,12 +354,9 @@
                   "Blog",
                   14
                ]
-            ],
-            "id" : "018",
-            "name" : "018"
+            ]
          },
          {
-            "name" : "019",
             "data" : [
                [
                   "Perl",
@@ -353,10 +371,10 @@
                   13
                ]
             ],
+            "name" : "019",
             "id" : "019"
          },
          {
-            "id" : "020",
             "data" : [
                [
                   "Perl",
@@ -371,10 +389,10 @@
                   13
                ]
             ],
-            "name" : "020"
+            "name" : "020",
+            "id" : "020"
          },
          {
-            "name" : "021",
             "data" : [
                [
                   "Perl",
@@ -389,10 +407,10 @@
                   10
                ]
             ],
-            "id" : "021"
+            "id" : "021",
+            "name" : "021"
          },
          {
-            "name" : "022",
             "data" : [
                [
                   "Perl",
@@ -407,11 +425,10 @@
                   10
                ]
             ],
+            "name" : "022",
             "id" : "022"
          },
          {
-            "name" : "023",
-            "id" : "023",
             "data" : [
                [
                   "Perl",
@@ -425,10 +442,11 @@
                   "Blog",
                   12
                ]
-            ]
+            ],
+            "name" : "023",
+            "id" : "023"
          },
          {
-            "id" : "024",
             "data" : [
                [
                   "Perl",
@@ -443,11 +461,10 @@
                   11
                ]
             ],
+            "id" : "024",
             "name" : "024"
          },
          {
-            "name" : "025",
-            "id" : "025",
             "data" : [
                [
                   "Perl",
@@ -461,9 +478,12 @@
                   "Blog",
                   12
                ]
-            ]
+            ],
+            "name" : "025",
+            "id" : "025"
          },
          {
+            "id" : "026",
             "name" : "026",
             "data" : [
                [
@@ -478,11 +498,11 @@
                   "Blog",
                   10
                ]
-            ],
-            "id" : "026"
+            ]
          },
          {
             "id" : "027",
+            "name" : "027",
             "data" : [
                [
                   "Perl",
@@ -496,10 +516,11 @@
                   "Blog",
                   9
                ]
-            ],
-            "name" : "027"
+            ]
          },
          {
+            "id" : "028",
+            "name" : "028",
             "data" : [
                [
                   "Perl",
@@ -513,9 +534,7 @@
                   "Blog",
                   9
                ]
-            ],
-            "id" : "028",
-            "name" : "028"
+            ]
          },
          {
             "name" : "029",
@@ -536,6 +555,8 @@
             ]
          },
          {
+            "name" : "030",
+            "id" : "030",
             "data" : [
                [
                   "Perl",
@@ -549,11 +570,10 @@
                   "Blog",
                   10
                ]
-            ],
-            "id" : "030",
-            "name" : "030"
+            ]
          },
          {
+            "name" : "031",
             "id" : "031",
             "data" : [
                [
@@ -568,11 +588,9 @@
                   "Blog",
                   9
                ]
-            ],
-            "name" : "031"
+            ]
          },
          {
-            "name" : "032",
             "data" : [
                [
                   "Perl",
@@ -587,9 +605,11 @@
                   10
                ]
             ],
+            "name" : "032",
             "id" : "032"
          },
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+            "id" : "033",
             "name" : "033",
             "data" : [
                [
@@ -604,12 +624,11 @@
                   "Blog",
                   10
                ]
-            ],
-            "id" : "033"
+            ]
          },
          {
-            "name" : "034",
             "id" : "034",
+            "name" : "034",
             "data" : [
                [
                   "Perl",
@@ -626,8 +645,8 @@
             ]
          },
          {
-            "name" : "035",
             "id" : "035",
+            "name" : "035",
             "data" : [
                [
                   "Perl",
@@ -644,8 +663,6 @@
             ]
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-            "name" : "036",
-            "id" : "036",
             "data" : [
                [
                   "Perl",
@@ -659,11 +676,11 @@
                   "Blog",
                   11
                ]
-            ]
+            ],
+            "name" : "036",
+            "id" : "036"
          },
          {
-            "name" : "037",
-            "id" : "037",
             "data" : [
                [
                   "Perl",
@@ -677,10 +694,11 @@
                   "Blog",
                   9
                ]
-            ]
+            ],
+            "name" : "037",
+            "id" : "037"
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-            "name" : "038",
             "data" : [
                [
                   "Perl",
@@ -695,10 +713,10 @@
                   12
                ]
             ],
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+            "id" : "038",
+            "name" : "038"
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-            "id" : "039",
             "data" : [
                [
                   "Perl",
@@ -713,7 +731,8 @@
                   12
                ]
             ],
-            "name" : "039"
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@@ -730,11 +749,10 @@
                   10
                ]
             ],
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-            "name" : "040"
+            "name" : "040",
+            "id" : "040"
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             "data" : [
                [
                   "Perl",
@@ -749,11 +767,10 @@
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+            "id" : "041",
+            "name" : "041"
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-            "id" : "042",
             "data" : [
                [
                   "Perl",
@@ -767,7 +784,9 @@
                   "Blog",
                   11
                ]
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+            ],
+            "name" : "042",
+            "id" : "042"
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             "data" : [
@@ -784,8 +803,8 @@
                   11
                ]
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-            "name" : "043"
+            "name" : "043",
+            "id" : "043"
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          {
             "data" : [
@@ -806,6 +825,7 @@
             "name" : "044"
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+            "id" : "045",
             "name" : "045",
             "data" : [
                [
@@ -820,10 +840,10 @@
                   "Blog",
                   11
                ]
-            ],
-            "id" : "045"
+            ]
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+            "name" : "046",
             "id" : "046",
             "data" : [
                [
@@ -838,12 +858,9 @@
                   "Blog",
                   10
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-            "name" : "046"
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                   "Perl",
@@ -857,7 +874,9 @@
                   "Blog",
                   10
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+            ],
+            "id" : "047",
+            "name" : "047"
          },
          {
             "data" : [
@@ -897,6 +916,7 @@
          },
          {
             "name" : "050",
+            "id" : "050",
             "data" : [
                [
                   "Perl",
@@ -910,8 +930,7 @@
                   "Blog",
                   12
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          {
             "data" : [
@@ -928,12 +947,10 @@
                   11
                ]
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-            "id" : "051",
-            "name" : "051"
+            "name" : "051",
+            "id" : "051"
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-            "id" : "052",
             "data" : [
                [
                   "Perl",
@@ -947,7 +964,9 @@
                   "Blog",
                   14
                ]
-            ]
+            ],
+            "name" : "052",
+            "id" : "052"
          },
          {
             "data" : [
@@ -968,6 +987,8 @@
             "name" : "053"
          },
          {
+            "name" : "054",
+            "id" : "054",
             "data" : [
                [
                   "Perl",
@@ -981,12 +1002,9 @@
                   "Blog",
                   18
                ]
-            ],
-            "id" : "054",
-            "name" : "054"
+            ]
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-            "id" : "055",
             "data" : [
                [
                   "Perl",
@@ -1001,11 +1019,12 @@
                   14
                ]
             ],
-            "name" : "055"
+            "name" : "055",
+            "id" : "055"
          },
          {
-            "name" : "056",
             "id" : "056",
+            "name" : "056",
             "data" : [
                [
                   "Perl",
@@ -1022,7 +1041,6 @@
             ]
          },
          {
-            "id" : "057",
             "data" : [
                [
                   "Perl",
@@ -1037,10 +1055,10 @@
                   15
                ]
             ],
-            "name" : "057"
+            "name" : "057",
+            "id" : "057"
          },
          {
-            "name" : "058",
             "data" : [
                [
                   "Perl",
@@ -1055,11 +1073,10 @@
                   13
                ]
             ],
-            "id" : "058"
+            "id" : "058",
+            "name" : "058"
          },
          {
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-            "id" : "059",
             "data" : [
                [
                   "Perl",
@@ -1073,7 +1090,9 @@
                   "Blog",
                   16
                ]
-            ]
+            ],
+            "id" : "059",
+            "name" : "059"
          },
          {
             "data" : [
@@ -1126,10 +1145,11 @@
                   11
                ]
             ],
-            "id" : "062",
-            "name" : "062"
+            "name" : "062",
+            "id" : "062"
          },
          {
+            "name" : "063",
             "id" : "063",
             "data" : [
                [
@@ -1144,10 +1164,11 @@
                   "Blog",
                   13
                ]
-            ],
-            "name" : "063"
+            ]
          },
          {
+            "name" : "064",
+            "id" : "064",
             "data" : [
                [
                   "Perl",
@@ -1161,11 +1182,10 @@
                   "Blog",
                   16
                ]
-            ],
-            "id" : "064",
-            "name" : "064"
+            ]
          },
          {
+            "id" : "065",
             "name" : "065",
             "data" : [
                [
@@ -1180,12 +1200,11 @@
                   "Blog",
                   15
                ]
-            ],
-            "id" : "065"
+            ]
          },
          {
-            "name" : "066",
             "id" : "066",
+            "name" : "066",
             "data" : [
                [
                   "Perl",
@@ -1202,8 +1221,6 @@
             ]
          },
          {
-            "name" : "067",
-            "id" : "067",
             "data" : [
                [
                   "Perl",
@@ -1217,11 +1234,11 @@
                   "Blog",
                   18
                ]
-            ]
+            ],
+            "id" : "067",
+            "name" : "067"
          },
          {
-            "name" : "068",
-            "id" : "068",
             "data" : [
                [
                   "Perl",
@@ -1235,7 +1252,9 @@
                   "Blog",
                   13
                ]
-            ]
+            ],
+            "name" : "068",
+            "id" : "068"
          },
          {
             "name" : "069",
@@ -1274,6 +1293,7 @@
             "name" : "070"
          },
          {
+            "name" : "071",
             "id" : "071",
             "data" : [
                [
@@ -1288,10 +1308,11 @@
                   "Blog",
                   15
                ]
-            ],
-            "name" : "071"
+            ]
          },
          {
+            "name" : "072",
+            "id" : "072",
             "data" : [
                [
                   "Perl",
@@ -1305,11 +1326,11 @@
                   "Blog",
                   19
                ]
-            ],
-            "id" : "072",
-            "name" : "072"
+            ]
          },
          {
+            "id" : "073",
+            "name" : "073",
             "data" : [
                [
                   "Perl",
@@ -1323,11 +1344,10 @@
                   "Blog",
                   17
                ]
-            ],
-            "id" : "073",
-            "name" : "073"
+            ]
          },
          {
+            "name" : "074",
             "id" : "074",
             "data" : [
                [
@@ -1342,10 +1362,11 @@
                   "Blog",
                   20
                ]
-            ],
-            "name" : "074"
+            ]
          },
          {
+            "name" : "075",
+            "id" : "075",
             "data" : [
                [
                   "Perl",
@@ -1359,11 +1380,11 @@
                   "Blog",