- Added solutions by Andrew Shitov.

14 files changed, 1387 insertions, 1372 deletions

diff --git a/stats/pwc-current.json b/stats/pwc-current.json
index b8e1c4b5e8..852c9d3e32 100644
--- a/stats/pwc-current.json
+++ b/stats/pwc-current.json
@@ -2,35 +2,73 @@
    "title" : {
       "text" : "The Weekly Challenge - 137"
    },
-   "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/>"
-   },
-   "chart" : {
-      "type" : "column"
-   },
-   "plotOptions" : {
-      "series" : {
-         "dataLabels" : {
-            "enabled" : 1,
-            "format" : "{point.y}"
-         },
-         "borderWidth" : 0
+   "series" : [
+      {
+         "data" : [
+            {
+               "y" : 1,
+               "name" : "Andrew Shitov",
+               "drilldown" : "Andrew Shitov"
+            },
+            {
+               "name" : "Bob Lied",
+               "y" : 2,
+               "drilldown" : "Bob Lied"
+            },
+            {
+               "drilldown" : "Flavio Poletti",
+               "name" : "Flavio Poletti",
+               "y" : 6
+            },
+            {
+               "drilldown" : "James Smith",
+               "name" : "James Smith",
+               "y" : 3
+            },
+            {
+               "y" : 2,
+               "name" : "Mark Anderson",
+               "drilldown" : "Mark Anderson"
+            },
+            {
+               "drilldown" : "Niels van Dijke",
+               "name" : "Niels van Dijke",
+               "y" : 2
+            },
+            {
+               "name" : "Simon Green",
+               "y" : 3,
+               "drilldown" : "Simon Green"
+            },
+            {
+               "drilldown" : "Steven Wilson",
+               "y" : 1,
+               "name" : "Steven Wilson"
+            }
+         ],
+         "name" : "The Weekly Challenge - 137",
+         "colorByPoint" : 1
       }
-   },
+   ],
    "subtitle" : {
-      "text" : "[Champions: 7] Last updated at 2021-11-02 09:32:00 GMT"
+      "text" : "[Champions: 8] Last updated at 2021-11-02 09:54:47 GMT"
+   },
+   "xAxis" : {
+      "type" : "category"
    },
    "drilldown" : {
       "series" : [
          {
+            "data" : [
+               [
+                  "Raku",
+                  1
+               ]
+            ],
+            "name" : "Andrew Shitov",
+            "id" : "Andrew Shitov"
+         },
+         {
             "id" : "Bob Lied",
             "name" : "Bob Lied",
             "data" : [
@@ -55,8 +93,8 @@
                   2
                ]
             ],
-            "name" : "Flavio Poletti",
-            "id" : "Flavio Poletti"
+            "id" : "Flavio Poletti",
+            "name" : "Flavio Poletti"
          },
          {
             "data" : [
@@ -69,22 +107,22 @@
                   1
                ]
             ],
-            "id" : "James Smith",
-            "name" : "James Smith"
+            "name" : "James Smith",
+            "id" : "James Smith"
          },
          {
-            "id" : "Mark Anderson",
-            "name" : "Mark Anderson",
             "data" : [
                [
                   "Raku",
                   2
                ]
-            ]
+            ],
+            "name" : "Mark Anderson",
+            "id" : "Mark Anderson"
          },
          {
-            "id" : "Niels van Dijke",
             "name" : "Niels van Dijke",
+            "id" : "Niels van Dijke",
             "data" : [
                [
                   "Perl",
@@ -93,8 +131,8 @@
             ]
          },
          {
-            "name" : "Simon Green",
             "id" : "Simon Green",
+            "name" : "Simon Green",
             "data" : [
                [
                   "Perl",
@@ -107,63 +145,40 @@
             ]
          },
          {
+            "id" : "Steven Wilson",
+            "name" : "Steven Wilson",
             "data" : [
                [
                   "Perl",
                   1
                ]
-            ],
-            "id" : "Steven Wilson",
-            "name" : "Steven Wilson"
+            ]
          }
       ]
    },
-   "series" : [
-      {
-         "data" : [
-            {
-               "drilldown" : "Bob Lied",
-               "y" : 2,
-               "name" : "Bob Lied"
-            },
-            {
-               "drilldown" : "Flavio Poletti",
-               "name" : "Flavio Poletti",
-               "y" : 6
-            },
-            {
-               "drilldown" : "James Smith",
-               "name" : "James Smith",
-               "y" : 3
-            },
-            {
-               "drilldown" : "Mark Anderson",
-               "name" : "Mark Anderson",
-               "y" : 2
-            },
-            {
-               "y" : 2,
-               "name" : "Niels van Dijke",
-               "drilldown" : "Niels van Dijke"
-            },
-            {
-               "drilldown" : "Simon Green",
-               "name" : "Simon Green",
-               "y" : 3
-            },
-            {
-               "drilldown" : "Steven Wilson",
-               "y" : 1,
-               "name" : "Steven Wilson"
-            }
-         ],
-         "colorByPoint" : 1,
-         "name" : "The Weekly Challenge - 137"
+   "legend" : {
+      "enabled" : 0
+   },
+   "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
+   },
+   "plotOptions" : {
+      "series" : {
+         "dataLabels" : {
+            "enabled" : 1,
+            "format" : "{point.y}"
+         },
+         "borderWidth" : 0
       }
-   ],
+   },
    "yAxis" : {
       "title" : {
          "text" : "Total Solutions"
       }
+   },
+   "chart" : {
+      "type" : "column"
    }
 }
diff --git a/stats/pwc-language-breakdown-summary.json b/stats/pwc-language-breakdown-summary.json
index 2c78646dc7..093e6ad95f 100644
--- a/stats/pwc-language-breakdown-summary.json
+++ b/stats/pwc-language-breakdown-summary.json
@@ -1,25 +1,36 @@
 {
+   "chart" : {
+      "type" : "column"
+   },
+   "legend" : {
+      "enabled" : "false"
+   },
+   "tooltip" : {
+      "pointFormat" : "<b>{point.y:.0f}</b>"
+   },
    "yAxis" : {
-      "min" : 0,
       "title" : {
          "text" : null
-      }
+      },
+      "min" : 0
+   },
+   "subtitle" : {
+      "text" : "Last updated at 2021-11-02 09:54:47 GMT"
+   },
+   "xAxis" : {
+      "labels" : {
+         "style" : {
+            "fontSize" : "13px",
+            "fontFamily" : "Verdana, sans-serif"
+         }
+      },
+      "type" : "category"
+   },
+   "title" : {
+      "text" : "The Weekly Challenge Contributions [2019 - 2021]"
    },
    "series" : [
       {
-         "name" : "Contributions",
-         "dataLabels" : {
-            "enabled" : "true",
-            "rotation" : -90,
-            "style" : {
-               "fontSize" : "13px",
-               "fontFamily" : "Verdana, sans-serif"
-            },
-            "format" : "{point.y:.0f}",
-            "y" : 10,
-            "align" : "right",
-            "color" : "#FFFFFF"
-         },
          "data" : [
             [
                "Blog",
@@ -31,33 +42,22 @@
             ],
             [
                "Raku",
-               3972
+               3973
             ]
-         ]
-      }
-   ],
-   "subtitle" : {
-      "text" : "Last updated at 2021-11-02 09:32:00 GMT"
-   },
-   "chart" : {
-      "type" : "column"
-   },
-   "tooltip" : {
-      "pointFormat" : "<b>{point.y:.0f}</b>"
-   },
-   "legend" : {
-      "enabled" : "false"
-   },
-   "xAxis" : {
-      "type" : "category",
-      "labels" : {
-         "style" : {
-            "fontFamily" : "Verdana, sans-serif",
-            "fontSize" : "13px"
+         ],
+         "name" : "Contributions",
+         "dataLabels" : {
+            "align" : "right",
+            "enabled" : "true",
+            "format" : "{point.y:.0f}",
+            "y" : 10,
+            "rotation" : -90,
+            "color" : "#FFFFFF",
+            "style" : {
+               "fontSize" : "13px",
+               "fontFamily" : "Verdana, sans-serif"
+            }
          }
       }
-   },
-   "title" : {
-      "text" : "The Weekly Challenge Contributions [2019 - 2021]"
-   }
+   ]
 }
diff --git a/stats/pwc-language-breakdown.json b/stats/pwc-language-breakdown.json
index 1cbef57879..6da8d93aac 100644
--- a/stats/pwc-language-breakdown.json
+++ b/stats/pwc-language-breakdown.json
@@ -1,13 +1,11 @@
 {
    "series" : [
       {
-         "colorByPoint" : "true",
-         "name" : "The Weekly Challenge Languages",
          "data" : [
             {
+               "drilldown" : "001",
                "name" : "#001",
-               "y" : 161,
-               "drilldown" : "001"
+               "y" : 161
             },
             {
                "drilldown" : "002",
@@ -16,28 +14,28 @@
             },
             {
                "drilldown" : "003",
-               "name" : "#003",
-               "y" : 81
+               "y" : 81,
+               "name" : "#003"
             },
             {
-               "name" : "#004",
                "y" : 99,
+               "name" : "#004",
                "drilldown" : "004"
             },
             {
-               "y" : 78,
                "name" : "#005",
+               "y" : 78,
                "drilldown" : "005"
             },
             {
-               "drilldown" : "006",
                "y" : 58,
-               "name" : "#006"
+               "name" : "#006",
+               "drilldown" : "006"
             },
             {
-               "drilldown" : "007",
+               "y" : 64,
                "name" : "#007",
-               "y" : 64
+               "drilldown" : "007"
             },
             {
                "y" : 78,
@@ -50,19 +48,19 @@
                "name" : "#009"
             },
             {
-               "y" : 65,
                "name" : "#010",
+               "y" : 65,
                "drilldown" : "010"
             },
             {
-               "drilldown" : "011",
+               "name" : "#011",
                "y" : 85,
-               "name" : "#011"
+               "drilldown" : "011"
             },
             {
-               "y" : 89,
+               "drilldown" : "012",
                "name" : "#012",
-               "drilldown" : "012"
+               "y" : 89
             },
             {
                "drilldown" : "013",
@@ -70,34 +68,34 @@
                "y" : 85
             },
             {
+               "drilldown" : "014",
                "y" : 101,
-               "name" : "#014",
-               "drilldown" : "014"
+               "name" : "#014"
             },
             {
-               "name" : "#015",
                "y" : 99,
+               "name" : "#015",
                "drilldown" : "015"
             },
             {
-               "name" : "#016",
                "y" : 71,
+               "name" : "#016",
                "drilldown" : "016"
             },
             {
+               "drilldown" : "017",
                "y" : 84,
-               "name" : "#017",
-               "drilldown" : "017"
+               "name" : "#017"
             },
             {
-               "drilldown" : "018",
                "y" : 81,
-               "name" : "#018"
+               "name" : "#018",
+               "drilldown" : "018"
             },
             {
-               "drilldown" : "019",
+               "name" : "#019",
                "y" : 103,
-               "name" : "#019"
+               "drilldown" : "019"
             },
             {
                "name" : "#020",
@@ -105,14 +103,14 @@
                "drilldown" : "020"
             },
             {
-               "drilldown" : "021",
                "name" : "#021",
-               "y" : 72
+               "y" : 72,
+               "drilldown" : "021"
             },
             {
-               "y" : 68,
+               "drilldown" : "022",
                "name" : "#022",
-               "drilldown" : "022"
+               "y" : 68
             },
             {
                "drilldown" : "023",
@@ -121,28 +119,28 @@
             },
             {
                "drilldown" : "024",
-               "name" : "#024",
-               "y" : 75
+               "y" : 75,
+               "name" : "#024"
             },
             {
+               "drilldown" : "025",
                "y" : 59,
-               "name" : "#025",
-               "drilldown" : "025"
+               "name" : "#025"
             },
             {
                "drilldown" : "026",
-               "y" : 74,
-               "name" : "#026"
+               "name" : "#026",
+               "y" : 74
             },
             {
                "drilldown" : "027",
-               "y" : 60,
-               "name" : "#027"
+               "name" : "#027",
+               "y" : 60
             },
             {
-               "drilldown" : "028",
+               "y" : 80,
                "name" : "#028",
-               "y" : 80
+               "drilldown" : "028"
             },
             {
                "drilldown" : "029",
@@ -156,48 +154,48 @@
             },
             {
                "drilldown" : "031",
-               "y" : 89,
-               "name" : "#031"
+               "name" : "#031",
+               "y" : 89
             },
             {
-               "y" : 94,
                "name" : "#032",
+               "y" : 94,
                "drilldown" : "032"
             },
             {
-               "drilldown" : "033",
+               "y" : 110,
                "name" : "#033",
-               "y" : 110
+               "drilldown" : "033"
             },
             {
-               "drilldown" : "034",
+               "name" : "#034",
                "y" : 64,
-               "name" : "#034"
+               "drilldown" : "034"
             },
             {
-               "name" : "#035",
+               "drilldown" : "035",
                "y" : 64,
-               "drilldown" : "035"
+               "name" : "#035"
             },
             {
-               "drilldown" : "036",
                "name" : "#036",
-               "y" : 68
+               "y" : 68,
+               "drilldown" : "036"
             },
             {
-               "drilldown" : "037",
+               "y" : 67,
                "name" : "#037",
-               "y" : 67
+               "drilldown" : "037"
             },
             {
-               "drilldown" : "038",
+               "y" : 68,
                "name" : "#038",
-               "y" : 68
+               "drilldown" : "038"
             },
             {
                "drilldown" : "039",
-               "name" : "#039",
-               "y" : 62
+               "y" : 62,
+               "name" : "#039"
             },
             {
                "name" : "#040",
@@ -205,19 +203,19 @@
                "drilldown" : "040"
             },
             {
+               "drilldown" : "041",
                "name" : "#041",
-               "y" : 76,
-               "drilldown" : "041"
+               "y" : 76
             },
             {
-               "drilldown" : "042",
                "y" : 92,
-               "name" : "#042"
+               "name" : "#042",
+               "drilldown" : "042"
             },
             {
+               "drilldown" : "043",
                "y" : 68,
-               "name" : "#043",
-               "drilldown" : "043"
+               "name" : "#043"
             },
             {
                "name" : "#044",
@@ -230,44 +228,44 @@
                "drilldown" : "045"
             },
             {
+               "drilldown" : "046",
                "y" : 87,
-               "name" : "#046",
-               "drilldown" : "046"
+               "name" : "#046"
             },
             {
+               "drilldown" : "047",
                "name" : "#047",
-               "y" : 84,
-               "drilldown" : "047"
+               "y" : 84
             },
             {
-               "drilldown" : "048",
+               "y" : 108,
                "name" : "#048",
-               "y" : 108
+               "drilldown" : "048"
             },
             {
                "drilldown" : "049",
-               "name" : "#049",
-               "y" : 89
+               "y" : 89,
+               "name" : "#049"
             },
             {
                "drilldown" : "050",
-               "y" : 98,
-               "name" : "#050"
+               "name" : "#050",
+               "y" : 98
             },
             {
-               "drilldown" : "051",
                "name" : "#051",
-               "y" : 89
+               "y" : 89,
+               "drilldown" : "051"
             },
             {
-               "drilldown" : "052",
+               "y" : 91,
                "name" : "#052",
-               "y" : 91
+               "drilldown" : "052"
             },
             {
+               "drilldown" : "053",
                "y" : 101,
-               "name" : "#053",
-               "drilldown" : "053"
+               "name" : "#053"
             },
             {
                "y" : 103,
@@ -276,23 +274,23 @@
             },
             {
                "drilldown" : "055",
-               "name" : "#055",
-               "y" : 88
+               "y" : 88,
+               "name" : "#055"
             },
             {
-               "drilldown" : "056",
                "name" : "#056",
-               "y" : 95
+               "y" : 95,
+               "drilldown" : "056"
             },
             {
-               "name" : "#057",
                "y" : 80,
+               "name" : "#057",
                "drilldown" : "057"
             },
             {
-               "drilldown" : "058",
                "y" : 69,
-               "name" : "#058"
+               "name" : "#058",
+               "drilldown" : "058"
             },
             {
                "drilldown" : "059",
@@ -300,54 +298,54 @@
                "y" : 89
             },
             {
-               "drilldown" : "060",
                "name" : "#060",
-               "y" : 85
+               "y" : 85,
+               "drilldown" : "060"
             },
             {
-               "y" : 81,
+               "drilldown" : "061",
                "name" : "#061",
-               "drilldown" : "061"
+               "y" : 81
             },
             {
-               "drilldown" : "062",
                "y" : 58,
-               "name" : "#062"
+               "name" : "#062",
+               "drilldown" : "062"
             },
             {
-               "y" : 89,
                "name" : "#063",
+               "y" : 89,
                "drilldown" : "063"
             },
             {
-               "drilldown" : "064",
                "name" : "#064",
-               "y" : 80
+               "y" : 80,
+               "drilldown" : "064"
             },
             {
-               "y" : 73,
+               "drilldown" : "065",
                "name" : "#065",
-               "drilldown" : "065"
+               "y" : 73
             },
             {
-               "name" : "#066",
+               "drilldown" : "066",
                "y" : 84,
-               "drilldown" : "066"
+               "name" : "#066"
             },
             {
                "drilldown" : "067",
-               "name" : "#067",
-               "y" : 90
+               "y" : 90,
+               "name" : "#067"
             },
             {
-               "drilldown" : "068",
                "y" : 75,
-               "name" : "#068"
+               "name" : "#068",
+               "drilldown" : "068"
             },
             {
-               "drilldown" : "069",
+               "name" : "#069",
                "y" : 83,
-               "name" : "#069"
+               "drilldown" : "069"
             },
             {
                "drilldown" : "070",
@@ -355,24 +353,24 @@
                "name" : "#070"
             },
             {
-               "name" : "#071",
                "y" : 78,
+               "name" : "#071",
                "drilldown" : "071"
             },
             {
-               "name" : "#072",
                "y" : 112,
+               "name" : "#072",
                "drilldown" : "072"
             },
             {
-               "name" : "#073",
                "y" : 110,
+               "name" : "#073",
                "drilldown" : "073"
             },
             {
                "drilldown" : "074",
-               "y" : 115,
-               "name" : "#074"
+               "name" : "#074",
+               "y" : 115
             },
             {
                "drilldown" : "075",
@@ -380,29 +378,29 @@
                "y" : 115
             },
             {
-               "drilldown" : "076",
+               "name" : "#076",
                "y" : 99,
-               "name" : "#076"
+               "drilldown" : "076"
             },
             {
+               "drilldown" : "077",
                "name" : "#077",
-               "y" : 98,
-               "drilldown" : "077"
+               "y" : 98
             },
             {
-               "name" : "#078",
+               "drilldown" : "078",
                "y" : 127,
-               "drilldown" : "078"
+               "name" : "#078"
             },
             {
+               "drilldown" : "079",
                "y" : 122,
-               "name" : "#079",
-               "drilldown" : "079"
+               "name" : "#079"
             },
             {
-               "drilldown" : "080",
                "y" : 127,
-               "name" : "#080"
+               "name" : "#080",
+               "drilldown" : "080"
             },
             {
                "drilldown" : "081",
@@ -411,38 +409,38 @@
             },
             {
                "drilldown" : "082",
-               "name" : "#082",
-               "y" : 114
+               "y" : 114,
+               "name" : "#082"
             },
             {
-               "y" : 127,
+               "drilldown" : "083",
                "name" : "#083",
-               "drilldown" : "083"
+               "y" : 127
             },
             {
-               "drilldown" : "084",
                "name" : "#084",
-               "y" : 119
+               "y" : 119,
+               "drilldown" : "084"
             },
             {
-               "drilldown" : "085",
+               "name" : "#085",
                "y" : 114,
-               "name" : "#085"
+               "drilldown" : "085"
             },
             {
+               "drilldown" : "086",
                "name" : "#086",
-               "y" : 104,
-               "drilldown" : "086"
+               "y" : 104
             },
             {
-               "drilldown" : "087",
+               "name" : "#087",
                "y" : 101,
-               "name" : "#087"
+               "drilldown" : "087"
             },
             {
-               "name" : "#088",
+               "drilldown" : "088",
                "y" : 121,
-               "drilldown" : "088"
+               "name" : "#088"
             },
             {
                "y" : 113,
@@ -456,23 +454,23 @@
             },
             {
                "drilldown" : "091",
-               "y" : 108,
-               "name" : "#091"
+               "name" : "#091",
+               "y" : 108
             },
             {
-               "drilldown" : "092",
                "y" : 98,
-               "name" : "#092"
+               "name" : "#092",
+               "drilldown" : "092"
             },
             {
-               "drilldown" : "093",
                "name" : "#093",
-               "y" : 87
+               "y" : 87,
+               "drilldown" : "093"
             },
             {
-               "drilldown" : "094",
+               "name" : "#094",
                "y" : 87,
-               "name" : "#094"
+               "drilldown" : "094"
             },
             {
                "drilldown" : "095",
@@ -490,38 +488,38 @@
                "name" : "#097"
             },
             {
-               "y" : 108,
                "name" : "#098",
+               "y" : 108,
                "drilldown" : "098"
             },
             {
+               "drilldown" : "099",
                "y" : 97,
-               "name" : "#099",
-               "drilldown" : "099"
+               "name" : "#099"
             },
             {
-               "drilldown" : "100",
+               "name" : "#100",
                "y" : 120,
-               "name" : "#100"
+               "drilldown" : "100"
             },
             {
-               "drilldown" : "101",
+               "y" : 83,
                "name" : "#101",
-               "y" : 83
+               "drilldown" : "101"
             },
             {
-               "name" : "#102",
                "y" : 90,
+               "name" : "#102",
                "drilldown" : "102"
             },
             {
-               "name" : "#103",
+               "drilldown" : "103",
                "y" : 79,
-               "drilldown" : "103"
+               "name" : "#103"
             },
             {
-               "y" : 85,
                "name" : "#104",
+               "y" : 85,
                "drilldown" : "104"
             },
             {
@@ -535,9 +533,9 @@
                "name" : "#106"
             },
             {
-               "name" : "#107",
+               "drilldown" : "107",
                "y" : 90,
-               "drilldown" : "107"
+               "name" : "#107"
             },
             {
                "drilldown" : "108",
@@ -550,28 +548,28 @@
                "drilldown" : "109"
             },
             {
-               "drilldown" : "110",
                "y" : 108,
-               "name" : "#110"
+               "name" : "#110",
+               "drilldown" : "110"
             },
             {
-               "drilldown" : "111",
                "name" : "#111",
-               "y" : 91
+               "y" : 91,
+               "drilldown" : "111"
             },
             {
-               "name" : "#112",
+               "drilldown" : "112",
                "y" : 92,
-               "drilldown" : "112"
+               "name" : "#112"
             },
             {
-               "name" : "#113",
                "y" : 92,
+               "name" : "#113",
                "drilldown" : "113"
             },
             {
-               "y" : 108,
                "name" : "#114",
+               "y" : 108,
                "drilldown" : "114"
             },
             {
@@ -580,24 +578,24 @@
                "drilldown" : "115"
             },
             {
+               "drilldown" : "116",
                "y" : 95,
-               "name" : "#116",
-               "drilldown" : "116"
+               "name" : "#116"
             },
             {
-               "name" : "#117",
                "y" : 97,
+               "name" : "#117",
                "drilldown" : "117"
             },
             {
+               "drilldown" : "118",
                "y" : 81,
-               "name" : "#118",
-               "drilldown" : "118"
+               "name" : "#118"
             },
             {
+               "drilldown" : "119",
                "y" : 123,
-               "name" : "#119",
-               "drilldown" : "119"
+               "name" : "#119"
             },
             {
                "name" : "#120",
@@ -611,8 +609,8 @@
             },
             {
                "drilldown" : "122",
-               "name" : "#122",
-               "y" : 108
+               "y" : 108,
+               "name" : "#122"
             },
             {
                "drilldown" : "123",
@@ -620,28 +618,28 @@