- Added solutions by Kang-min Liu.

12 files changed, 1056 insertions, 1041 deletions

diff --git a/stats/pwc-current.json b/stats/pwc-current.json
index 7478945175..3f6afa8563 100644
--- a/stats/pwc-current.json
+++ b/stats/pwc-current.json
@@ -1,33 +1,21 @@
 {
-   "chart" : {
-      "type" : "column"
-   },
-   "subtitle" : {
-      "text" : "[Champions: 10] Last updated at 2020-10-13 10:04:09 GMT"
-   },
-   "title" : {
-      "text" : "Perl Weekly Challenge - 082"
-   },
-   "yAxis" : {
-      "title" : {
-         "text" : "Total Solutions"
-      }
-   },
    "plotOptions" : {
       "series" : {
          "dataLabels" : {
-            "enabled" : 1,
-            "format" : "{point.y}"
+            "format" : "{point.y}",
+            "enabled" : 1
          },
          "borderWidth" : 0
       }
    },
-   "xAxis" : {
-      "type" : "category"
-   },
    "legend" : {
       "enabled" : 0
    },
+   "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/>"
+   },
    "drilldown" : {
       "series" : [
          {
@@ -45,38 +33,38 @@
             "name" : "Andinus"
          },
          {
+            "id" : "Andrew Shitov",
             "name" : "Andrew Shitov",
             "data" : [
                [
                   "Raku",
                   2
                ]
-            ],
-            "id" : "Andrew Shitov"
+            ]
          },
          {
-            "id" : "E. Choroba",
+            "name" : "E. Choroba",
             "data" : [
                [
                   "Perl",
                   2
                ]
             ],
-            "name" : "E. Choroba"
+            "id" : "E. Choroba"
          },
          {
-            "name" : "Mark Anderson",
             "data" : [
                [
                   "Raku",
                   2
                ]
             ],
-            "id" : "Mark Anderson"
+            "name" : "Kang-min Liu",
+            "id" : "Kang-min Liu"
          },
          {
-            "id" : "Markus Holzer",
-            "name" : "Markus Holzer",
+            "id" : "Mark Anderson",
+            "name" : "Mark Anderson",
             "data" : [
                [
                   "Raku",
@@ -85,16 +73,27 @@
             ]
          },
          {
-            "id" : "Niels van Dijke",
+            "name" : "Markus Holzer",
+            "data" : [
+               [
+                  "Raku",
+                  2
+               ]
+            ],
+            "id" : "Markus Holzer"
+         },
+         {
+            "name" : "Niels van Dijke",
             "data" : [
                [
                   "Perl",
                   2
                ]
             ],
-            "name" : "Niels van Dijke"
+            "id" : "Niels van Dijke"
          },
          {
+            "id" : "Roger Bell_West",
             "data" : [
                [
                   "Perl",
@@ -105,11 +104,9 @@
                   2
                ]
             ],
-            "name" : "Roger Bell_West",
-            "id" : "Roger Bell_West"
+            "name" : "Roger Bell_West"
          },
          {
-            "id" : "Simon Green",
             "name" : "Simon Green",
             "data" : [
                [
@@ -120,7 +117,8 @@
                   "Blog",
                   1
                ]
-            ]
+            ],
+            "id" : "Simon Green"
          },
          {
             "data" : [
@@ -144,20 +142,29 @@
          }
       ]
    },
+   "title" : {
+      "text" : "Perl Weekly Challenge - 082"
+   },
+   "xAxis" : {
+      "type" : "category"
+   },
+   "yAxis" : {
+      "title" : {
+         "text" : "Total Solutions"
+      }
+   },
    "series" : [
       {
-         "colorByPoint" : 1,
-         "name" : "Perl Weekly Challenge - 082",
          "data" : [
             {
-               "y" : 2,
                "drilldown" : "Andinus",
+               "y" : 2,
                "name" : "Andinus"
             },
             {
-               "y" : 2,
                "drilldown" : "Andrew Shitov",
-               "name" : "Andrew Shitov"
+               "name" : "Andrew Shitov",
+               "y" : 2
             },
             {
                "y" : 2,
@@ -165,46 +172,54 @@
                "drilldown" : "E. Choroba"
             },
             {
+               "y" : 2,
+               "name" : "Kang-min Liu",
+               "drilldown" : "Kang-min Liu"
+            },
+            {
                "drilldown" : "Mark Anderson",
                "name" : "Mark Anderson",
                "y" : 2
             },
             {
-               "name" : "Markus Holzer",
                "drilldown" : "Markus Holzer",
+               "name" : "Markus Holzer",
                "y" : 2
             },
             {
-               "y" : 2,
                "drilldown" : "Niels van Dijke",
-               "name" : "Niels van Dijke"
+               "name" : "Niels van Dijke",
+               "y" : 2
             },
             {
-               "y" : 4,
                "drilldown" : "Roger Bell_West",
+               "y" : 4,
                "name" : "Roger Bell_West"
             },
             {
-               "name" : "Simon Green",
                "drilldown" : "Simon Green",
-               "y" : 3
+               "y" : 3,
+               "name" : "Simon Green"
             },
             {
-               "y" : 2,
+               "drilldown" : "Simon Proctor",
                "name" : "Simon Proctor",
-               "drilldown" : "Simon Proctor"
+               "y" : 2
             },
             {
-               "y" : 1,
+               "drilldown" : "Steven Wilson",
                "name" : "Steven Wilson",
-               "drilldown" : "Steven Wilson"
+               "y" : 1
             }
-         ]
+         ],
+         "name" : "Perl Weekly Challenge - 082",
+         "colorByPoint" : 1
       }
    ],
-   "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/>"
+   "subtitle" : {
+      "text" : "[Champions: 11] Last updated at 2020-10-13 12:44:01 GMT"
+   },
+   "chart" : {
+      "type" : "column"
    }
 }
diff --git a/stats/pwc-language-breakdown-summary.json b/stats/pwc-language-breakdown-summary.json
index 427fac731b..a36456e6d6 100644
--- a/stats/pwc-language-breakdown-summary.json
+++ b/stats/pwc-language-breakdown-summary.json
@@ -1,22 +1,22 @@
 {
-   "legend" : {
-      "enabled" : "false"
+   "chart" : {
+      "type" : "column"
    },
    "series" : [
       {
+         "name" : "Contributions",
          "dataLabels" : {
-            "align" : "right",
+            "enabled" : "true",
             "color" : "#FFFFFF",
+            "y" : 10,
+            "format" : "{point.y:.0f}",
+            "align" : "right",
+            "rotation" : -90,
             "style" : {
                "fontFamily" : "Verdana, sans-serif",
                "fontSize" : "13px"
-            },
-            "format" : "{point.y:.0f}",
-            "y" : 10,
-            "enabled" : "true",
-            "rotation" : -90
+            }
          },
-         "name" : "Contributions",
          "data" : [
             [
                "Blog",
@@ -28,19 +28,16 @@
             ],
             [
                "Raku",
-               2262
+               2264
             ]
          ]
       }
    ],
-   "tooltip" : {
-      "pointFormat" : "<b>{point.y:.0f}</b>"
-   },
    "subtitle" : {
-      "text" : "Last updated at 2020-10-13 10:04:09 GMT"
+      "text" : "Last updated at 2020-10-13 12:44:00 GMT"
    },
-   "chart" : {
-      "type" : "column"
+   "title" : {
+      "text" : "Perl Weekly Challenge Contributions [2019 - 2020]"
    },
    "xAxis" : {
       "labels" : {
@@ -52,12 +49,15 @@
       "type" : "category"
    },
    "yAxis" : {
+      "min" : 0,
       "title" : {
          "text" : null
-      },
-      "min" : 0
+      }
    },
-   "title" : {
-      "text" : "Perl Weekly Challenge Contributions [2019 - 2020]"
+   "legend" : {
+      "enabled" : "false"
+   },
+   "tooltip" : {
+      "pointFormat" : "<b>{point.y:.0f}</b>"
    }
 }
diff --git a/stats/pwc-language-breakdown.json b/stats/pwc-language-breakdown.json
index a32e3c28bd..dd30c569f4 100644
--- a/stats/pwc-language-breakdown.json
+++ b/stats/pwc-language-breakdown.json
@@ -1,29 +1,17 @@
 {
-   "subtitle" : {
-      "text" : "Click the columns to drilldown the language breakdown. Last updated at 2020-10-13 10:04:09 GMT"
-   },
-   "chart" : {
-      "type" : "column"
+   "title" : {
+      "text" : "Perl Weekly Challenge Language"
    },
    "xAxis" : {
       "type" : "category"
    },
-   "title" : {
-      "text" : "Perl Weekly Challenge Language"
-   },
    "yAxis" : {
       "title" : {
          "text" : "Total Solutions"
       }
    },
-   "plotOptions" : {
-      "series" : {
-         "dataLabels" : {
-            "format" : "{point.y}",
-            "enabled" : 1
-         },
-         "borderWidth" : 0
-      }
+   "legend" : {
+      "enabled" : "false"
    },
    "drilldown" : {
       "series" : [
@@ -46,7 +34,7 @@
             "id" : "001"
          },
          {
-            "id" : "002",
+            "name" : "002",
             "data" : [
                [
                   "Perl",
@@ -61,7 +49,7 @@
                   10
                ]
             ],
-            "name" : "002"
+            "id" : "002"
          },
          {
             "id" : "003",
@@ -82,7 +70,6 @@
             "name" : "003"
          },
          {
-            "id" : "004",
             "data" : [
                [
                   "Perl",
@@ -97,9 +84,11 @@
                   10
                ]
             ],
-            "name" : "004"
+            "name" : "004",
+            "id" : "004"
          },
          {
+            "id" : "005",
             "data" : [
                [
                   "Perl",
@@ -114,11 +103,11 @@
                   12
                ]
             ],
-            "name" : "005",
-            "id" : "005"
+            "name" : "005"
          },
          {
             "id" : "006",
+            "name" : "006",
             "data" : [
                [
                   "Perl",
@@ -132,11 +121,10 @@
                   "Blog",
                   7
                ]
-            ],
-            "name" : "006"
+            ]
          },
          {
-            "name" : "007",
+            "id" : "007",
             "data" : [
                [
                   "Perl",
@@ -151,10 +139,9 @@
                   10
                ]
             ],
-            "id" : "007"
+            "name" : "007"
          },
          {
-            "id" : "008",
             "data" : [
                [
                   "Perl",
@@ -169,11 +156,10 @@
                   12
                ]
             ],
-            "name" : "008"
+            "name" : "008",
+            "id" : "008"
          },
          {
-            "id" : "009",
-            "name" : "009",
             "data" : [
                [
                   "Perl",
@@ -187,9 +173,12 @@
                   "Blog",
                   13
                ]
-            ]
+            ],
+            "name" : "009",
+            "id" : "009"
          },
          {
+            "name" : "010",
             "data" : [
                [
                   "Perl",
@@ -204,11 +193,11 @@
                   11
                ]
             ],
-            "name" : "010",
             "id" : "010"
          },
          {
             "id" : "011",
+            "name" : "011",
             "data" : [
                [
                   "Perl",
@@ -222,12 +211,10 @@
                   "Blog",
                   10
                ]
-            ],
-            "name" : "011"
+            ]
          },
          {
             "id" : "012",
-            "name" : "012",
             "data" : [
                [
                   "Perl",
@@ -241,7 +228,8 @@
                   "Blog",
                   11
                ]
-            ]
+            ],
+            "name" : "012"
          },
          {
             "id" : "013",
@@ -262,7 +250,7 @@
             ]
          },
          {
-            "id" : "014",
+            "name" : "014",
             "data" : [
                [
                   "Perl",
@@ -277,10 +265,9 @@
                   15
                ]
             ],
-            "name" : "014"
+            "id" : "014"
          },
          {
-            "id" : "015",
             "name" : "015",
             "data" : [
                [
@@ -295,10 +282,11 @@
                   "Blog",
                   15
                ]
-            ]
+            ],
+            "id" : "015"
          },
          {
-            "name" : "016",
+            "id" : "016",
             "data" : [
                [
                   "Perl",
@@ -313,7 +301,7 @@
                   12
                ]
             ],
-            "id" : "016"
+            "name" : "016"
          },
          {
             "name" : "017",
@@ -353,7 +341,6 @@
          },
          {
             "id" : "019",
-            "name" : "019",
             "data" : [
                [
                   "Perl",
@@ -367,11 +354,10 @@
                   "Blog",
                   13
                ]
-            ]
+            ],
+            "name" : "019"
          },
          {
-            "id" : "020",
-            "name" : "020",
             "data" : [
                [
                   "Perl",
@@ -385,11 +371,12 @@
                   "Blog",
                   13
                ]
-            ]
+            ],
+            "name" : "020",
+            "id" : "020"
          },
          {
             "id" : "021",
-            "name" : "021",
             "data" : [
                [
                   "Perl",
@@ -403,10 +390,12 @@
                   "Blog",
                   10
                ]
-            ]
+            ],
+            "name" : "021"
          },
          {
             "id" : "022",
+            "name" : "022",
             "data" : [
                [
                   "Perl",
@@ -420,8 +409,7 @@
                   "Blog",
                   10
                ]
-            ],
-            "name" : "022"
+            ]
          },
          {
             "name" : "023",
@@ -443,6 +431,7 @@
          },
          {
             "id" : "024",
+            "name" : "024",
             "data" : [
                [
                   "Perl",
@@ -456,11 +445,10 @@
                   "Blog",
                   11
                ]
-            ],
-            "name" : "024"
+            ]
          },
          {
-            "name" : "025",
+            "id" : "025",
             "data" : [
                [
                   "Perl",
@@ -475,11 +463,9 @@
                   12
                ]
             ],
-            "id" : "025"
+            "name" : "025"
          },
          {
-            "id" : "026",
-            "name" : "026",
             "data" : [
                [
                   "Perl",
@@ -493,7 +479,9 @@
                   "Blog",
                   10
                ]
-            ]
+            ],
+            "name" : "026",
+            "id" : "026"
          },
          {
             "id" : "027",
@@ -514,8 +502,6 @@
             "name" : "027"
          },
          {
-            "id" : "028",
-            "name" : "028",
             "data" : [
                [
                   "Perl",
@@ -529,7 +515,9 @@
                   "Blog",
                   9
                ]
-            ]
+            ],
+            "name" : "028",
+            "id" : "028"
          },
          {
             "id" : "029",
@@ -550,6 +538,7 @@
             "name" : "029"
          },
          {
+            "id" : "030",
             "name" : "030",
             "data" : [
                [
@@ -564,12 +553,9 @@
                   "Blog",
                   10
                ]
-            ],
-            "id" : "030"
+            ]
          },
          {
-            "id" : "031",
-            "name" : "031",
             "data" : [
                [
                   "Perl",
@@ -583,10 +569,13 @@
                   "Blog",
                   9
                ]
-            ]
+            ],
+            "name" : "031",
+            "id" : "031"
          },
          {
             "id" : "032",
+            "name" : "032",
             "data" : [
                [
                   "Perl",
@@ -600,8 +589,7 @@
                   "Blog",
                   10
                ]
-            ],
-            "name" : "032"
+            ]
          },
          {
             "id" : "033",
@@ -640,7 +628,6 @@
             ]
          },
          {
-            "name" : "035",
             "data" : [
                [
                   "Perl",
@@ -655,10 +642,10 @@
                   9
                ]
             ],
+            "name" : "035",
             "id" : "035"
          },
          {
-            "id" : "036",
             "name" : "036",
             "data" : [
                [
@@ -673,9 +660,11 @@
                   "Blog",
                   11
                ]
-            ]
+            ],
+            "id" : "036"
          },
          {
+            "id" : "037",
             "data" : [
                [
                   "Perl",
@@ -690,11 +679,10 @@
                   9
                ]
             ],
-            "name" : "037",
-            "id" : "037"
+            "name" : "037"
          },
          {
-            "name" : "038",
+            "id" : "038",
             "data" : [
                [
                   "Perl",
@@ -709,10 +697,10 @@
                   12
                ]
             ],
-            "id" : "038"
+            "name" : "038"
          },
          {
-            "name" : "039",
+            "id" : "039",
             "data" : [
                [
                   "Perl",
@@ -727,10 +715,9 @@
                   12
                ]
             ],
-            "id" : "039"
+            "name" : "039"
          },
          {
-            "id" : "040",
             "name" : "040",
             "data" : [
                [
@@ -745,10 +732,12 @@
                   "Blog",
                   10
                ]
-            ]
+            ],
+            "id" : "040"
          },
          {
             "id" : "041",
+            "name" : "041",
             "data" : [
                [
                   "Perl",
@@ -762,11 +751,9 @@
                   "Blog",
                   9
                ]
-            ],
-            "name" : "041"
+            ]
          },
          {
-            "id" : "042",
             "data" : [
                [
                   "Perl",
@@ -781,10 +768,11 @@
                   11
                ]
             ],
-            "name" : "042"
+            "name" : "042",
+            "id" : "042"
          },
          {
-            "name" : "043",
+            "id" : "043",
             "data" : [
                [
                   "Perl",
@@ -799,7 +787,7 @@
                   11
                ]
             ],
-            "id" : "043"
+            "name" : "043"
          },
          {
             "data" : [
@@ -820,8 +808,6 @@
             "id" : "044"
          },
          {
-            "id" : "045",
-            "name" : "045",
             "data" : [
                [
                   "Perl",
@@ -835,10 +821,13 @@
                   "Blog",
                   11
                ]
-            ]
+            ],
+            "name" : "045",
+            "id" : "045"
          },
          {
             "id" : "046",
+            "name" : "046",
             "data" : [
                [
                   "Perl",
@@ -852,11 +841,9 @@
                   "Blog",
                   10
                ]
-            ],
-            "name" : "046"
+            ]
          },
          {
-            "id" : "047",
             "data" : [
                [
                   "Perl",
@@ -871,7 +858,8 @@
                   10
                ]
             ],
-            "name" : "047"
+            "name" : "047",
+            "id" : "047"
          },
          {
             "id" : "048",
@@ -928,8 +916,6 @@
             "id" : "050"
          },
          {
-            "id" : "051",
-            "name" : "051",
             "data" : [
                [
                   "Perl",
@@ -943,7 +929,9 @@
                   "Blog",
                   11
                ]
-            ]
+            ],
+            "name" : "051",
+            "id" : "051"
          },
          {
             "id" : "052",
@@ -964,7 +952,6 @@
             "name" : "052"
          },
          {
-            "id" : "053",
             "name" : "053",
             "data" : [
                [
@@ -979,10 +966,10 @@
                   "Blog",
                   15
                ]
-            ]
+            ],
+            "id" : "053"
          },
          {
-            "id" : "054",
             "data" : [
                [
                   "Perl",
@@ -997,9 +984,11 @@
                   18
                ]
             ],
-            "name" : "054"
+            "name" : "054",
+            "id" : "054"
          },
          {
+            "name" : "055",
             "data" : [
                [
                   "Perl",
@@ -1014,12 +1003,10 @@
                   14
                ]
             ],
-            "name" : "055",
             "id" : "055"
          },
          {
             "id" : "056",
-            "name" : "056",
             "data" : [
                [
                   "Perl",
@@ -1033,11 +1020,10 @@
                   "Blog",
                   16
                ]
-            ]
+            ],
+            "name" : "056"
          },
          {
-            "id" : "057",
-            "name" : "057",
             "data" : [
                [
                   "Perl",
@@ -1051,7 +1037,9 @@
                   "Blog",
                   15
                ]
-            ]
+            ],
+            "name" : "057",
+            "id" : "057"
          },
          {
             "data" : [
@@ -1108,6 +1096,7 @@
             "id" : "060"
          },
          {
+            "name" : "061",
             "data" : [
                [
                   "Perl",
@@ -1122,7 +1111,6 @@
                   14
                ]
             ],
-            "name" : "061",
             "id" : "061"
          },
          {
@@ -1144,8 +1132,6 @@
             ]
          },
          {
-            "id" : "063",
-            "name" : "063",
             "data" : [
                [
                   "Perl",
@@ -1159,10 +1145,11 @@
                   "Blog",
                   13
                ]
-            ]
+            ],
+            "name" : "063",
+            "id" : "063"
          },
          {
-            "id" : "064",
             "data" : [
                [
                   "Perl",
@@ -1177,7 +1164,8 @@
                   16
                ]
             ],
-            "name" : "064"
+            "name" : "064",
+            "id" : "064"
          },
          {
             "id" : "065",
@@ -1199,6 +1187,7 @@
          },
          {
             "id" : "066",
+            "name" : "066",
             "data" : [
                [
                   "Perl",
@@ -1212,11 +1201,11 @@
                   "Blog",
                   14
                ]
-            ],
-            "name" : "066"
+            ]
          },
          {
             "id" : "067",
+            "name" : "067",
             "data" : [
                [
                   "Perl",
@@ -1230,11 +1219,10 @@
                   "Blog",
                   18
                ]
-            ],
-            "name" : "067"
+            ]
          },
          {
-            "id" : "068",
+            "name" : "068",
             "data" : [
                [
                   "Perl",
@@ -1249,9 +1237,10 @@
                   13
                ]
             ],
-            "name" : "068"
+            "id" : "068"
          },
          {
+            "id" : "069",
             "name" : "069",
             "data" : [
                [
@@ -1266,11 +1255,10 @@
                   "Blog",
                   16
                ]
-            ],
-            "id" : "069"
+            ]
          },
          {
-            "name" : "070",
+            "id" : "070",
             "data" : [
                [
                   "Perl",
@@ -1285,7 +1273,7 @@
                   17
                ]
             ],
-            "id" : "070"
+            "name" : "070"
          },
          {
             "id" : "071",
@@ -1306,7 +1294,6 @@
             "name" : "071"
          },
          {
-            "id" : "072",
             "name" : "072",
             "data" : [
                [
@@ -1321,7 +1308,8 @@
                   "Blog",
                   19
                ]
-            ]
+            ],
+            "id" : "072"
          },
          {
             "id" : "073",
@@ -1342,6 +1330,7 @@
             ]
          },
          {
+            "id" : "074",
             "data" : [
                [
                   "Perl",
@@ -1356,10 +1345,10 @@
                   20
                ]
             ],
-            "name" : "074",
-            "id" : "074"
+            "name" : "074"
          },
          {
+            "id" : "075",
             "data" : [
                [
                   "Perl",
@@ -1374,10 +1363,11 @@
                   20
                ]
             ],
-            "name" : "075",
-            "id" : "075"
+            "name" : "075"
          },
          {
+            "id" : "076",
+            "name" : "076",
             "data" : [
                [
                   "Perl",
@@ -1391,11 +1381,11 @@
                   "Blog",
                   16
                ]
-            ],
-            "name" : "076",
-            "id" : "076"
+            ]
          },
          {
+            "id" : "077",
+            "name" : "077",
             "data" : [
                [
                   "Perl",
@@ -1409,13 +1399,9 @@
                   "Blog",
                   14
                ]
-            ],
-            "name" : "077",
-            "id" : "077"
+            ]
          },
          {
-            "id" : "078",
-            "name" : "078",
             "data" : [