- Added solutions by Kang-min Liu.

12 files changed, 1249 insertions, 1230 deletions

diff --git a/stats/pwc-current.json b/stats/pwc-current.json
index f7efb8519e..e3d9610aea 100644
--- a/stats/pwc-current.json
+++ b/stats/pwc-current.json
@@ -1,7 +1,13 @@
 {
+   "chart" : {
+      "type" : "column"
+   },
+   "legend" : {
+      "enabled" : 0
+   },
    "series" : [
       {
-         "name" : "Perl Weekly Challenge - 089",
+         "colorByPoint" : 1,
          "data" : [
             {
                "y" : 3,
@@ -9,9 +15,9 @@
                "drilldown" : "Aaron Smith"
             },
             {
-               "drilldown" : "Clifton Wood",
+               "name" : "Clifton Wood",
                "y" : 2,
-               "name" : "Clifton Wood"
+               "drilldown" : "Clifton Wood"
             },
             {
                "y" : 3,
@@ -19,9 +25,9 @@
                "drilldown" : "Dave Jacoby"
             },
             {
-               "drilldown" : "Feng Chang",
                "y" : 2,
-               "name" : "Feng Chang"
+               "name" : "Feng Chang",
+               "drilldown" : "Feng Chang"
             },
             {
                "y" : 2,
@@ -30,8 +36,13 @@
             },
             {
                "drilldown" : "Jorg Sommrey",
-               "y" : 2,
-               "name" : "Jorg Sommrey"
+               "name" : "Jorg Sommrey",
+               "y" : 2
+            },
+            {
+               "name" : "Kang-min Liu",
+               "y" : 4,
+               "drilldown" : "Kang-min Liu"
             },
             {
                "drilldown" : "Mark Anderson",
@@ -44,34 +55,34 @@
                "y" : 2
             },
             {
-               "drilldown" : "Philip Hood",
                "y" : 2,
-               "name" : "Philip Hood"
+               "name" : "Philip Hood",
+               "drilldown" : "Philip Hood"
             },
             {
+               "drilldown" : "Roger Bell_West",
                "name" : "Roger Bell_West",
-               "y" : 4,
-               "drilldown" : "Roger Bell_West"
+               "y" : 4
             },
             {
-               "y" : 3,
                "name" : "Simon Green",
+               "y" : 3,
                "drilldown" : "Simon Green"
             },
             {
                "drilldown" : "Simon Proctor",
-               "name" : "Simon Proctor",
-               "y" : 2
+               "y" : 2,
+               "name" : "Simon Proctor"
             },
             {
-               "drilldown" : "Stuart Little",
                "name" : "Stuart Little",
-               "y" : 2
+               "y" : 2,
+               "drilldown" : "Stuart Little"
             },
             {
-               "drilldown" : "Ulrich Rieke",
                "name" : "Ulrich Rieke",
-               "y" : 4
+               "y" : 4,
+               "drilldown" : "Ulrich Rieke"
             },
             {
                "drilldown" : "Walt Mankowski",
@@ -79,19 +90,13 @@
                "name" : "Walt Mankowski"
             }
          ],
-         "colorByPoint" : 1
+         "name" : "Perl Weekly Challenge - 089"
       }
    ],
-   "subtitle" : {
-      "text" : "[Champions: 15] Last updated at 2020-12-02 07:19:12 GMT"
-   },
-   "chart" : {
-      "type" : "column"
-   },
    "drilldown" : {
       "series" : [
          {
-            "id" : "Aaron Smith",
+            "name" : "Aaron Smith",
             "data" : [
                [
                   "Raku",
@@ -102,17 +107,17 @@
                   1
                ]
             ],
-            "name" : "Aaron Smith"
+            "id" : "Aaron Smith"
          },
          {
+            "id" : "Clifton Wood",
             "data" : [
                [
                   "Raku",
                   2
                ]
             ],
-            "name" : "Clifton Wood",
-            "id" : "Clifton Wood"
+            "name" : "Clifton Wood"
          },
          {
             "id" : "Dave Jacoby",
@@ -129,34 +134,48 @@
             ]
          },
          {
-            "id" : "Feng Chang",
             "name" : "Feng Chang",
             "data" : [
                [
                   "Raku",
                   2
                ]
-            ]
+            ],
+            "id" : "Feng Chang"
          },
          {
+            "id" : "James Smith",
             "name" : "James Smith",
             "data" : [
                [
                   "Perl",
                   2
                ]
-            ],
-            "id" : "James Smith"
+            ]
          },
          {
+            "id" : "Jorg Sommrey",
             "name" : "Jorg Sommrey",
             "data" : [
                [
                   "Perl",
                   2
                ]
+            ]
+         },
+         {
+            "data" : [
+               [
+                  "Raku",
+                  2
+               ],
+               [
+                  "Blog",
+                  2
+               ]
             ],
-            "id" : "Jorg Sommrey"
+            "name" : "Kang-min Liu",
+            "id" : "Kang-min Liu"
          },
          {
             "id" : "Mark Anderson",
@@ -169,24 +188,24 @@
             ]
          },
          {
+            "id" : "Miguel Prz",
             "data" : [
                [
                   "Perl",
                   2
                ]
             ],
-            "name" : "Miguel Prz",
-            "id" : "Miguel Prz"
+            "name" : "Miguel Prz"
          },
          {
-            "id" : "Philip Hood",
             "data" : [
                [
                   "Raku",
                   2
                ]
             ],
-            "name" : "Philip Hood"
+            "name" : "Philip Hood",
+            "id" : "Philip Hood"
          },
          {
             "id" : "Roger Bell_West",
@@ -203,7 +222,6 @@
             "name" : "Roger Bell_West"
          },
          {
-            "id" : "Simon Green",
             "name" : "Simon Green",
             "data" : [
                [
@@ -214,30 +232,31 @@
                   "Blog",
                   1
                ]
-            ]
+            ],
+            "id" : "Simon Green"
          },
          {
-            "id" : "Simon Proctor",
             "data" : [
                [
                   "Raku",
                   2
                ]
             ],
-            "name" : "Simon Proctor"
+            "name" : "Simon Proctor",
+            "id" : "Simon Proctor"
          },
          {
-            "id" : "Stuart Little",
+            "name" : "Stuart Little",
             "data" : [
                [
                   "Raku",
                   2
                ]
             ],
-            "name" : "Stuart Little"
+            "id" : "Stuart Little"
          },
          {
-            "name" : "Ulrich Rieke",
+            "id" : "Ulrich Rieke",
             "data" : [
                [
                   "Perl",
@@ -248,10 +267,11 @@
                   2
                ]
             ],
-            "id" : "Ulrich Rieke"
+            "name" : "Ulrich Rieke"
          },
          {
             "id" : "Walt Mankowski",
+            "name" : "Walt Mankowski",
             "data" : [
                [
                   "Perl",
@@ -261,37 +281,36 @@
                   "Blog",
                   1
                ]
-            ],
-            "name" : "Walt Mankowski"
+            ]
          }
       ]
    },
-   "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/>"
-   },
    "title" : {
       "text" : "Perl Weekly Challenge - 089"
    },
-   "yAxis" : {
-      "title" : {
-         "text" : "Total Solutions"
+   "subtitle" : {
+      "text" : "[Champions: 16] Last updated at 2020-12-02 22:34:53 GMT"
+   },
+   "plotOptions" : {
+      "series" : {
+         "borderWidth" : 0,
+         "dataLabels" : {
+            "format" : "{point.y}",
+            "enabled" : 1
+         }
       }
    },
-   "legend" : {
-      "enabled" : 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
    },
    "xAxis" : {
       "type" : "category"
    },
-   "plotOptions" : {
-      "series" : {
-         "dataLabels" : {
-            "enabled" : 1,
-            "format" : "{point.y}"
-         },
-         "borderWidth" : 0
+   "yAxis" : {
+      "title" : {
+         "text" : "Total Solutions"
       }
    }
 }
diff --git a/stats/pwc-language-breakdown-summary.json b/stats/pwc-language-breakdown-summary.json
index 9b36dc4aed..8452b48c33 100644
--- a/stats/pwc-language-breakdown-summary.json
+++ b/stats/pwc-language-breakdown-summary.json
@@ -1,31 +1,25 @@
 {
-   "tooltip" : {
-      "pointFormat" : "<b>{point.y:.0f}</b>"
-   },
-   "chart" : {
-      "type" : "column"
-   },
-   "subtitle" : {
-      "text" : "Last updated at 2020-12-02 07:19:12 GMT"
+   "legend" : {
+      "enabled" : "false"
    },
    "series" : [
       {
          "dataLabels" : {
+            "enabled" : "true",
+            "align" : "right",
+            "rotation" : -90,
+            "color" : "#FFFFFF",
+            "y" : 10,
+            "format" : "{point.y:.0f}",
             "style" : {
                "fontFamily" : "Verdana, sans-serif",
                "fontSize" : "13px"
-            },
-            "color" : "#FFFFFF",
-            "align" : "right",
-            "format" : "{point.y:.0f}",
-            "y" : 10,
-            "enabled" : "true",
-            "rotation" : -90
+            }
          },
          "data" : [
             [
                "Blog",
-               1148
+               1150
             ],
             [
                "Perl",
@@ -33,12 +27,21 @@
             ],
             [
                "Raku",
-               2621
+               2623
             ]
          ],
          "name" : "Contributions"
       }
    ],
+   "chart" : {
+      "type" : "column"
+   },
+   "title" : {
+      "text" : "Perl Weekly Challenge Contributions [2019 - 2020]"
+   },
+   "tooltip" : {
+      "pointFormat" : "<b>{point.y:.0f}</b>"
+   },
    "xAxis" : {
       "type" : "category",
       "labels" : {
@@ -48,16 +51,13 @@
          }
       }
    },
+   "subtitle" : {
+      "text" : "Last updated at 2020-12-02 22:34:53 GMT"
+   },
    "yAxis" : {
+      "min" : 0,
       "title" : {
          "text" : null
-      },
-      "min" : 0
-   },
-   "legend" : {
-      "enabled" : "false"
-   },
-   "title" : {
-      "text" : "Perl Weekly Challenge Contributions [2019 - 2020]"
+      }
    }
 }
diff --git a/stats/pwc-language-breakdown.json b/stats/pwc-language-breakdown.json
index c768134cd2..561562200e 100644
--- a/stats/pwc-language-breakdown.json
+++ b/stats/pwc-language-breakdown.json
@@ -1,461 +1,6 @@
 {
-   "series" : [
-      {
-         "data" : [
-            {
-               "drilldown" : "001",
-               "y" : 147,
-               "name" : "#001"
-            },
-            {
-               "drilldown" : "002",
-               "name" : "#002",
-               "y" : 116
-            },
-            {
-               "name" : "#003",
-               "y" : 73,
-               "drilldown" : "003"
-            },
-            {
-               "y" : 93,
-               "name" : "#004",
-               "drilldown" : "004"
-            },
-            {
-               "drilldown" : "005",
-               "y" : 72,
-               "name" : "#005"
-            },
-            {
-               "drilldown" : "006",
-               "name" : "#006",
-               "y" : 52
-            },
-            {
-               "y" : 61,
-               "name" : "#007",
-               "drilldown" : "007"
-            },
-            {
-               "name" : "#008",
-               "y" : 74,
-               "drilldown" : "008"
-            },
-            {
-               "y" : 72,
-               "name" : "#009",
-               "drilldown" : "009"
-            },
-            {
-               "y" : 60,
-               "name" : "#010",
-               "drilldown" : "010"
-            },
-            {
-               "name" : "#011",
-               "y" : 81,
-               "drilldown" : "011"
-            },
-            {
-               "drilldown" : "012",
-               "name" : "#012",
-               "y" : 85
-            },
-            {
-               "drilldown" : "013",
-               "name" : "#013",
-               "y" : 80
-            },
-            {
-               "drilldown" : "014",
-               "y" : 98,
-               "name" : "#014"
-            },
-            {
-               "name" : "#015",
-               "y" : 95,
-               "drilldown" : "015"
-            },
-            {
-               "drilldown" : "016",
-               "name" : "#016",
-               "y" : 66
-            },
-            {
-               "y" : 81,
-               "name" : "#017",
-               "drilldown" : "017"
-            },
-            {
-               "y" : 78,
-               "name" : "#018",
-               "drilldown" : "018"
-            },
-            {
-               "drilldown" : "019",
-               "y" : 99,
-               "name" : "#019"
-            },
-            {
-               "y" : 97,
-               "name" : "#020",
-               "drilldown" : "020"
-            },
-            {
-               "name" : "#021",
-               "y" : 67,
-               "drilldown" : "021"
-            },
-            {
-               "drilldown" : "022",
-               "y" : 63,
-               "name" : "#022"
-            },
-            {
-               "drilldown" : "023",
-               "y" : 93,
-               "name" : "#023"
-            },
-            {
-               "y" : 70,
-               "name" : "#024",
-               "drilldown" : "024"
-            },
-            {
-               "y" : 55,
-               "name" : "#025",
-               "drilldown" : "025"
-            },
-            {
-               "drilldown" : "026",
-               "name" : "#026",
-               "y" : 70
-            },
-            {
-               "drilldown" : "027",
-               "y" : 58,
-               "name" : "#027"
-            },
-            {
-               "drilldown" : "028",
-               "name" : "#028",
-               "y" : 80
-            },
-            {
-               "drilldown" : "029",
-               "y" : 77,
-               "name" : "#029"
-            },
-            {
-               "name" : "#030",
-               "y" : 117,
-               "drilldown" : "030"
-            },
-            {
-               "drilldown" : "031",
-               "y" : 89,
-               "name" : "#031"
-            },
-            {
-               "drilldown" : "032",
-               "y" : 94,
-               "name" : "#032"
-            },
-            {
-               "name" : "#033",
-               "y" : 110,
-               "drilldown" : "033"
-            },
-            {
-               "drilldown" : "034",
-               "y" : 62,
-               "name" : "#034"
-            },
-            {
-               "name" : "#035",
-               "y" : 62,
-               "drilldown" : "035"
-            },
-            {
-               "y" : 66,
-               "name" : "#036",
-               "drilldown" : "036"
-            },
-            {
-               "name" : "#037",
-               "y" : 65,
-               "drilldown" : "037"
-            },
-            {
-               "drilldown" : "038",
-               "y" : 65,
-               "name" : "#038"
-            },
-            {
-               "drilldown" : "039",
-               "name" : "#039",
-               "y" : 60
-            },
-            {
-               "drilldown" : "040",
-               "name" : "#040",
-               "y" : 73
-            },
-            {
-               "drilldown" : "041",
-               "y" : 76,
-               "name" : "#041"
-            },
-            {
-               "name" : "#042",
-               "y" : 90,
-               "drilldown" : "042"
-            },
-            {
-               "drilldown" : "043",
-               "name" : "#043",
-               "y" : 66
-            },
-            {
-               "name" : "#044",
-               "y" : 82,
-               "drilldown" : "044"
-            },
-            {
-               "drilldown" : "045",
-               "name" : "#045",
-               "y" : 94
-            },
-            {
-               "y" : 85,
-               "name" : "#046",
-               "drilldown" : "046"
-            },
-            {
-               "name" : "#047",
-               "y" : 82,
-               "drilldown" : "047"
-            },
-            {
-               "drilldown" : "048",
-               "y" : 108,
-               "name" : "#048"
-            },
-            {
-               "y" : 85,
-               "name" : "#049",
-               "drilldown" : "049"
-            },
-            {
-               "y" : 96,
-               "name" : "#050",
-               "drilldown" : "050"
-            },
-            {
-               "drilldown" : "051",
-               "y" : 87,
-               "name" : "#051"
-            },
-            {
-               "y" : 89,
-               "name" : "#052",
-               "drilldown" : "052"
-            },
-            {
-               "y" : 99,
-               "name" : "#053",
-               "drilldown" : "053"
-            },
-            {
-               "drilldown" : "054",
-               "name" : "#054",
-               "y" : 103
-            },
-            {
-               "y" : 88,
-               "name" : "#055",
-               "drilldown" : "055"
-            },
-            {
-               "name" : "#056",
-               "y" : 95,
-               "drilldown" : "056"
-            },
-            {
-               "drilldown" : "057",
-               "y" : 80,
-               "name" : "#057"
-            },
-            {
-               "drilldown" : "058",
-               "name" : "#058",
-               "y" : 69
-            },
-            {
-               "drilldown" : "059",
-               "name" : "#059",
-               "y" : 89
-            },
-            {
-               "drilldown" : "060",
-               "name" : "#060",
-               "y" : 85
-            },
-            {
-               "drilldown" : "061",
-               "y" : 81,
-               "name" : "#061"
-            },
-            {
-               "drilldown" : "062",
-               "y" : 54,
-               "name" : "#062"
-            },
-            {
-               "drilldown" : "063",
-               "name" : "#063",
-               "y" : 89
-            },
-            {
-               "drilldown" : "064",
-               "y" : 80,
-               "name" : "#064"
-            },
-            {
-               "drilldown" : "065",
-               "name" : "#065",
-               "y" : 73
-            },
-            {
-               "drilldown" : "066",
-               "y" : 84,
-               "name" : "#066"
-            },
-            {
-               "drilldown" : "067",
-               "name" : "#067",
-               "y" : 90
-            },
-            {
-               "drilldown" : "068",
-               "name" : "#068",
-               "y" : 73
-            },
-            {
-               "drilldown" : "069",
-               "name" : "#069",
-               "y" : 81
-            },
-            {
-               "drilldown" : "070",
-               "name" : "#070",
-               "y" : 93
-            },
-            {
-               "drilldown" : "071",
-               "y" : 78,
-               "name" : "#071"
-            },
-            {
-               "drilldown" : "072",
-               "name" : "#072",
-               "y" : 112
-            },
-            {
-               "y" : 110,
-               "name" : "#073",
-               "drilldown" : "073"
-            },
-            {
-               "drilldown" : "074",
-               "y" : 115,
-               "name" : "#074"
-            },
-            {
-               "y" : 113,
-               "name" : "#075",
-               "drilldown" : "075"
-            },
-            {
-               "y" : 95,
-               "name" : "#076",
-               "drilldown" : "076"
-            },
-            {
-               "y" : 96,
-               "name" : "#077",
-               "drilldown" : "077"
-            },
-            {
-               "drilldown" : "078",
-               "name" : "#078",
-               "y" : 125
-            },
-            {
-               "y" : 120,
-               "name" : "#079",
-               "drilldown" : "079"
-            },
-            {
-               "drilldown" : "080",
-               "y" : 125,
-               "name" : "#080"
-            },
-            {
-               "drilldown" : "081",
-               "y" : 112,
-               "name" : "#081"
-            },
-            {
-               "drilldown" : "082",
-               "y" : 112,
-               "name" : "#082"
-            },
-            {
-               "y" : 125,
-               "name" : "#083",
-               "drilldown" : "083"
-            },
-            {
-               "name" : "#084",
-               "y" : 117,
-               "drilldown" : "084"
-            },
-            {
-               "drilldown" : "085",
-               "y" : 112,
-               "name" : "#085"
-            },
-            {
-               "drilldown" : "086",
-               "name" : "#086",
-               "y" : 102
-            },
-            {
-               "drilldown" : "087",
-               "y" : 99,
-               "name" : "#087"
-            },
-            {
-               "y" : 119,
-               "name" : "#088",
-               "drilldown" : "088"
-            },
-            {
-               "drilldown" : "089",
-               "name" : "#089",
-               "y" : 38
-            }
-         ],
-         "name" : "Perl Weekly Challenge Languages",
-         "colorByPoint" : "true"
-      }
-   ],
-   "tooltip" : {
-      "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/>"
+   "title" : {
+      "text" : "Perl Weekly Challenge Language"
    },
    "drilldown" : {
       "series" : [
@@ -496,6 +41,7 @@
             ]
          },
          {
+            "id" : "003",
             "data" : [
                [
                   "Perl",
@@ -510,11 +56,9 @@
                   9
                ]
             ],
-            "name" : "003",
-            "id" : "003"
+            "name" : "003"
          },
          {
-            "name" : "004",
             "data" : [
                [
                   "Perl",
@@ -529,10 +73,10 @@
                   10
                ]
             ],
+            "name" : "004",
             "id" : "004"
          },
          {
-            "name" : "005",
             "data" : [
                [
                   "Perl",
@@ -547,6 +91,7 @@
                   12
                ]
             ],
+            "name" : "005",
             "id" : "005"
          },
          {
@@ -568,7 +113,6 @@
             ]
          },
          {
-            "id" : "007",
             "data" : [
                [
                   "Perl",
@@ -583,7 +127,8 @@
                   10
                ]
             ],
-            "name" : "007"
+            "name" : "007",
+            "id" : "007"
          },
          {
             "id" : "008",
@@ -604,7 +149,6 @@
             ]
          },
          {
-            "id" : "009",
             "name" : "009",
             "data" : [
                [
@@ -619,11 +163,10 @@
                   "Blog",
                   13
                ]
-            ]
+            ],
+            "id" : "009"
          },
          {
-            "id" : "010",
-            "name" : "010",
             "data" : [
                [
                   "Perl",
@@ -637,9 +180,13 @@
                   "Blog",
                   11
                ]
-            ]
+            ],
+            "name" : "010",
+            "id" : "010"
          },
          {
+            "id" : "011",
+            "name" : "011",
             "data" : [
                [
                   "Perl",
@@ -653,9 +200,7 @@
                   "Blog",
                   10
                ]
-            ],
-            "name" : "011",
-            "id" : "011"
+            ]
          },
          {
             "data" : [
@@ -694,7 +239,7 @@
             "id" : "013"
          },
          {
-            "name" : "014",
+            "id" : "014",
             "data" : [
                [
                   "Perl",
@@ -709,10 +254,9 @@
                   15
                ]
             ],
-            "id" : "014"
+            "name" : "014"
          },
          {
-            "name" : "015",
             "data" : [
                [
                   "Perl",
@@ -727,6 +271,7 @@
                   15
                ]
             ],
+            "name" : "015",
             "id" : "015"
          },
          {
@@ -748,6 +293,7 @@
             ]
          },
          {
+            "id" : "017",
             "data" : [
                [
                   "Perl",
@@ -762,11 +308,9 @@
                   12
                ]
             ],
-            "name" : "017",
-            "id" : "017"
+            "name" : "017"
          },
          {
-            "id" : "018",
             "name" : "018",
             "data" : [
                [
@@ -781,11 +325,11 @@
                   "Blog",
                   14
                ]
-            ]
+            ],
+            "id" : "018"
          },
          {
             "id" : "019",
-            "name" : "019",
             "data" : [
                [
                   "Perl",
@@ -799,9 +343,12 @@
                   "Blog",
                   13
                ]
-            ]
+            ],
+            "name" : "019"
          },
          {
+            "id" : "020",
+            "name" : "020",
             "data" : [
                [
                   "Perl",
@@ -815,11 +362,10 @@
                   "Blog",
                   13
                ]
-            ],
-            "name" : "020",
-            "id" : "020"
+            ]
          },
          {
+            "id" : "021",
             "data" : [
                [
                   "Perl",
@@ -834,8 +380,7 @@
                   10
                ]
             ],
-            "name" : "021",
-            "id" : "021"
+            "name" : "021"
          },
          {
             "id" : "022",
@@ -856,7 +401,6 @@
             ]
          },
          {
-            "id" : "023",
             "name" : "023",
             "data" : [
                [
@@ -871,10 +415,10 @@
                   "Blog",
                   12
                ]
-            ]
+            ],
+            "id" : "023"
          },
          {
-            "name" : "024",
             "data" : [
                [
                   "Perl",
@@ -889,9 +433,11 @@
                   11
                ]
             ],
+            "name" : "024",
             "id" : "024"
          },
          {
+            "name" : "025",
             "data" : [