- Added solutions by Cheok-Yin Fung.

14 files changed, 1703 insertions, 1688 deletions

diff --git a/stats/pwc-current.json b/stats/pwc-current.json
index 6a09f51bf9..fe65ab2132 100644
--- a/stats/pwc-current.json
+++ b/stats/pwc-current.json
@@ -1,17 +1,17 @@
 {
-   "chart" : {
-      "type" : "column"
+   "legend" : {
+      "enabled" : 0
    },
    "title" : {
       "text" : "The Weekly Challenge - 135"
    },
    "plotOptions" : {
       "series" : {
-         "borderWidth" : 0,
          "dataLabels" : {
             "format" : "{point.y}",
             "enabled" : 1
-         }
+         },
+         "borderWidth" : 0
       }
    },
    "drilldown" : {
@@ -27,14 +27,14 @@
             "id" : "Abigail"
          },
          {
+            "name" : "Andinus",
+            "id" : "Andinus",
             "data" : [
                [
                   "Raku",
                   1
                ]
-            ],
-            "name" : "Andinus",
-            "id" : "Andinus"
+            ]
          },
          {
             "data" : [
@@ -43,12 +43,10 @@
                   2
                ]
             ],
-            "id" : "Andrezgz",
-            "name" : "Andrezgz"
+            "name" : "Andrezgz",
+            "id" : "Andrezgz"
          },
          {
-            "id" : "Arne Sommer",
-            "name" : "Arne Sommer",
             "data" : [
                [
                   "Perl",
@@ -62,31 +60,41 @@
                   "Blog",
                   1
                ]
-            ]
+            ],
+            "id" : "Arne Sommer",
+            "name" : "Arne Sommer"
          },
          {
+            "id" : "Ben Davies",
+            "name" : "Ben Davies",
             "data" : [
                [
                   "Raku",
                   2
                ]
+            ]
+         },
+         {
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ]
             ],
-            "id" : "Ben Davies",
-            "name" : "Ben Davies"
+            "id" : "Cheok-Yin Fung",
+            "name" : "Cheok-Yin Fung"
          },
          {
+            "name" : "Colin Crain",
+            "id" : "Colin Crain",
             "data" : [
                [
                   "Blog",
                   1
                ]
-            ],
-            "id" : "Colin Crain",
-            "name" : "Colin Crain"
+            ]
          },
          {
-            "name" : "Dave Jacoby",
-            "id" : "Dave Jacoby",
             "data" : [
                [
                   "Perl",
@@ -96,21 +104,21 @@
                   "Blog",
                   1
                ]
-            ]
+            ],
+            "id" : "Dave Jacoby",
+            "name" : "Dave Jacoby"
          },
          {
-            "name" : "E. Choroba",
-            "id" : "E. Choroba",
             "data" : [
                [
                   "Perl",
                   2
                ]
-            ]
+            ],
+            "id" : "E. Choroba",
+            "name" : "E. Choroba"
          },
          {
-            "id" : "Flavio Poletti",
-            "name" : "Flavio Poletti",
             "data" : [
                [
                   "Perl",
@@ -124,9 +132,13 @@
                   "Blog",
                   2
                ]
-            ]
+            ],
+            "id" : "Flavio Poletti",
+            "name" : "Flavio Poletti"
          },
          {
+            "id" : "James Smith",
+            "name" : "James Smith",
             "data" : [
                [
                   "Perl",
@@ -136,9 +148,7 @@
                   "Blog",
                   1
                ]
-            ],
-            "id" : "James Smith",
-            "name" : "James Smith"
+            ]
          },
          {
             "id" : "Jan Krnavek",
@@ -151,14 +161,14 @@
             ]
          },
          {
-            "id" : "Jorg Sommrey",
-            "name" : "Jorg Sommrey",
             "data" : [
                [
                   "Perl",
                   2
                ]
-            ]
+            ],
+            "id" : "Jorg Sommrey",
+            "name" : "Jorg Sommrey"
          },
          {
             "data" : [
@@ -167,10 +177,12 @@
                   1
                ]
             ],
-            "name" : "Lance Wicks",
-            "id" : "Lance Wicks"
+            "id" : "Lance Wicks",
+            "name" : "Lance Wicks"
          },
          {
+            "id" : "Laurent Rosenfeld",
+            "name" : "Laurent Rosenfeld",
             "data" : [
                [
                   "Perl",
@@ -184,9 +196,7 @@
                   "Blog",
                   1
                ]
-            ],
-            "id" : "Laurent Rosenfeld",
-            "name" : "Laurent Rosenfeld"
+            ]
          },
          {
             "data" : [
@@ -223,8 +233,8 @@
             ]
          },
          {
-            "name" : "Mohammad S Anwar",
             "id" : "Mohammad S Anwar",
+            "name" : "Mohammad S Anwar",
             "data" : [
                [
                   "Perl",
@@ -247,28 +257,26 @@
             "name" : "Niels van Dijke"
          },
          {
-            "id" : "Paulo Custodio",
-            "name" : "Paulo Custodio",
             "data" : [
                [
                   "Perl",
                   2
                ]
-            ]
+            ],
+            "id" : "Paulo Custodio",
+            "name" : "Paulo Custodio"
          },
          {
-            "name" : "Peter Campbell Smith",
-            "id" : "Peter Campbell Smith",
             "data" : [
                [
                   "Perl",
                   2
                ]
-            ]
+            ],
+            "id" : "Peter Campbell Smith",
+            "name" : "Peter Campbell Smith"
          },
          {
-            "name" : "Roger Bell_West",
-            "id" : "Roger Bell_West",
             "data" : [
                [
                   "Perl",
@@ -282,9 +290,13 @@
                   "Blog",
                   1
                ]
-            ]
+            ],
+            "name" : "Roger Bell_West",
+            "id" : "Roger Bell_West"
          },
          {
+            "id" : "Simon Green",
+            "name" : "Simon Green",
             "data" : [
                [
                   "Perl",
@@ -294,23 +306,19 @@
                   "Blog",
                   1
                ]
-            ],
-            "name" : "Simon Green",
-            "id" : "Simon Green"
+            ]
          },
          {
+            "id" : "Steven Wilson",
+            "name" : "Steven Wilson",
             "data" : [
                [
                   "Perl",
                   2
                ]
-            ],
-            "name" : "Steven Wilson",
-            "id" : "Steven Wilson"
+            ]
          },
          {
-            "name" : "Ulrich Rieke",
-            "id" : "Ulrich Rieke",
             "data" : [
                [
                   "Perl",
@@ -320,7 +328,9 @@
                   "Raku",
                   2
                ]
-            ]
+            ],
+            "name" : "Ulrich Rieke",
+            "id" : "Ulrich Rieke"
          },
          {
             "id" : "W. Luis Mochan",
@@ -338,8 +348,8 @@
          }
       ]
    },
-   "legend" : {
-      "enabled" : 0
+   "chart" : {
+      "type" : "column"
    },
    "xAxis" : {
       "type" : "category"
@@ -350,22 +360,22 @@
       }
    },
    "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
+      "followPointer" : 1,
+      "headerFormat" : "<span style='font-size:11px'>{series.name}</span><br/>"
    },
    "subtitle" : {
-      "text" : "[Champions: 26] Last updated at 2021-10-23 18:31:36 GMT"
+      "text" : "[Champions: 27] Last updated at 2021-10-24 03:37:31 GMT"
    },
    "series" : [
       {
-         "name" : "The Weekly Challenge - 135",
          "colorByPoint" : 1,
+         "name" : "The Weekly Challenge - 135",
          "data" : [
             {
+               "drilldown" : "Abigail",
                "name" : "Abigail",
-               "y" : 2,
-               "drilldown" : "Abigail"
+               "y" : 2
             },
             {
                "name" : "Andinus",
@@ -373,64 +383,69 @@
                "y" : 1
             },
             {
-               "drilldown" : "Andrezgz",
                "y" : 2,
-               "name" : "Andrezgz"
+               "name" : "Andrezgz",
+               "drilldown" : "Andrezgz"
             },
             {
+               "drilldown" : "Arne Sommer",
                "name" : "Arne Sommer",
-               "y" : 5,
-               "drilldown" : "Arne Sommer"
+               "y" : 5
             },
             {
-               "y" : 2,
+               "name" : "Ben Davies",
                "drilldown" : "Ben Davies",
-               "name" : "Ben Davies"
+               "y" : 2
+            },
+            {
+               "y" : 2,
+               "drilldown" : "Cheok-Yin Fung",
+               "name" : "Cheok-Yin Fung"
             },
             {
                "y" : 1,
-               "drilldown" : "Colin Crain",
-               "name" : "Colin Crain"
+               "name" : "Colin Crain",
+               "drilldown" : "Colin Crain"
             },
             {
+               "drilldown" : "Dave Jacoby",
                "name" : "Dave Jacoby",
-               "y" : 3,
-               "drilldown" : "Dave Jacoby"
+               "y" : 3
             },
             {
+               "y" : 2,
                "name" : "E. Choroba",
-               "drilldown" : "E. Choroba",
-               "y" : 2
+               "drilldown" : "E. Choroba"
             },
             {
                "drilldown" : "Flavio Poletti",
-               "y" : 6,
-               "name" : "Flavio Poletti"
+               "name" : "Flavio Poletti",
+               "y" : 6
             },
             {
-               "y" : 3,
                "drilldown" : "James Smith",
-               "name" : "James Smith"
+               "name" : "James Smith",
+               "y" : 3
             },
             {
+               "drilldown" : "Jan Krnavek",
                "name" : "Jan Krnavek",
-               "y" : 2,
-               "drilldown" : "Jan Krnavek"
+               "y" : 2
             },
             {
                "name" : "Jorg Sommrey",
-               "y" : 2,
-               "drilldown" : "Jorg Sommrey"
+               "drilldown" : "Jorg Sommrey",
+               "y" : 2
             },
             {
+               "name" : "Lance Wicks",
                "drilldown" : "Lance Wicks",
-               "y" : 1,
-               "name" : "Lance Wicks"
+               "y" : 1
             },
             {
-               "y" : 5,
                "drilldown" : "Laurent Rosenfeld",
-               "name" : "Laurent Rosenfeld"
+               "name" : "Laurent Rosenfeld",
+               "y" : 5
             },
             {
                "name" : "Lubos Kolouch",
@@ -438,19 +453,19 @@
                "y" : 2
             },
             {
-               "y" : 4,
+               "name" : "Luca Ferrari",
                "drilldown" : "Luca Ferrari",
-               "name" : "Luca Ferrari"
+               "y" : 4
             },
             {
+               "name" : "Matthew Neleigh",
                "drilldown" : "Matthew Neleigh",
-               "y" : 2,
-               "name" : "Matthew Neleigh"
+               "y" : 2
             },
             {
                "drilldown" : "Mohammad S Anwar",
-               "y" : 2,
-               "name" : "Mohammad S Anwar"
+               "name" : "Mohammad S Anwar",
+               "y" : 2
             },
             {
                "name" : "Niels van Dijke",
@@ -458,34 +473,34 @@
                "y" : 2
             },
             {
-               "drilldown" : "Paulo Custodio",
                "y" : 2,
-               "name" : "Paulo Custodio"
+               "name" : "Paulo Custodio",
+               "drilldown" : "Paulo Custodio"
             },
             {
-               "name" : "Peter Campbell Smith",
                "y" : 2,
+               "name" : "Peter Campbell Smith",
                "drilldown" : "Peter Campbell Smith"
             },
             {
-               "name" : "Roger Bell_West",
                "drilldown" : "Roger Bell_West",
+               "name" : "Roger Bell_West",
                "y" : 5
             },
             {
                "name" : "Simon Green",
-               "y" : 3,
-               "drilldown" : "Simon Green"
+               "drilldown" : "Simon Green",
+               "y" : 3
             },
             {
+               "drilldown" : "Steven Wilson",
                "name" : "Steven Wilson",
-               "y" : 2,
-               "drilldown" : "Steven Wilson"
+               "y" : 2
             },
             {
-               "y" : 4,
                "drilldown" : "Ulrich Rieke",
-               "name" : "Ulrich Rieke"
+               "name" : "Ulrich Rieke",
+               "y" : 4
             },
             {
                "y" : 3,
diff --git a/stats/pwc-language-breakdown-summary.json b/stats/pwc-language-breakdown-summary.json
index 0c77153c29..57eda89277 100644
--- a/stats/pwc-language-breakdown-summary.json
+++ b/stats/pwc-language-breakdown-summary.json
@@ -5,17 +5,36 @@
    "title" : {
       "text" : "The Weekly Challenge Contributions [2019 - 2021]"
    },
+   "xAxis" : {
+      "type" : "category",
+      "labels" : {
+         "style" : {
+            "fontFamily" : "Verdana, sans-serif",
+            "fontSize" : "13px"
+         }
+      }
+   },
    "chart" : {
       "type" : "column"
    },
-   "tooltip" : {
-      "pointFormat" : "<b>{point.y:.0f}</b>"
-   },
    "subtitle" : {
-      "text" : "Last updated at 2021-10-23 18:31:36 GMT"
+      "text" : "Last updated at 2021-10-24 03:37:31 GMT"
    },
    "series" : [
       {
+         "dataLabels" : {
+            "y" : 10,
+            "style" : {
+               "fontFamily" : "Verdana, sans-serif",
+               "fontSize" : "13px"
+            },
+            "format" : "{point.y:.0f}",
+            "color" : "#FFFFFF",
+            "rotation" : -90,
+            "enabled" : "true",
+            "align" : "right"
+         },
+         "name" : "Contributions",
          "data" : [
             [
                "Blog",
@@ -23,41 +42,22 @@
             ],
             [
                "Perl",
-               6447
+               6449
             ],
             [
                "Raku",
                3933
             ]
-         ],
-         "name" : "Contributions",
-         "dataLabels" : {
-            "align" : "right",
-            "color" : "#FFFFFF",
-            "rotation" : -90,
-            "y" : 10,
-            "style" : {
-               "fontSize" : "13px",
-               "fontFamily" : "Verdana, sans-serif"
-            },
-            "enabled" : "true",
-            "format" : "{point.y:.0f}"
-         }
+         ]
       }
    ],
-   "xAxis" : {
-      "type" : "category",
-      "labels" : {
-         "style" : {
-            "fontFamily" : "Verdana, sans-serif",
-            "fontSize" : "13px"
-         }
-      }
-   },
    "yAxis" : {
-      "min" : 0,
       "title" : {
          "text" : null
-      }
+      },
+      "min" : 0
+   },
+   "tooltip" : {
+      "pointFormat" : "<b>{point.y:.0f}</b>"
    }
 }
diff --git a/stats/pwc-language-breakdown.json b/stats/pwc-language-breakdown.json
index 7419936d37..7ddfcc01fb 100644
--- a/stats/pwc-language-breakdown.json
+++ b/stats/pwc-language-breakdown.json
@@ -1,4 +1,7 @@
 {
+   "title" : {
+      "text" : "The Weekly Challenge Language"
+   },
    "drilldown" : {
       "series" : [
          {
@@ -34,12 +37,10 @@
                   10
                ]
             ],
-            "id" : "002",
-            "name" : "002"
+            "name" : "002",
+            "id" : "002"
          },
          {
-            "id" : "003",
-            "name" : "003",
             "data" : [
                [
                   "Perl",
@@ -53,9 +54,13 @@
                   "Blog",
                   9
                ]
-            ]
+            ],
+            "name" : "003",
+            "id" : "003"
          },
          {
+            "id" : "004",
+            "name" : "004",
             "data" : [
                [
                   "Perl",
@@ -69,9 +74,7 @@
                   "Blog",
                   10
                ]
-            ],
-            "name" : "004",
-            "id" : "004"
+            ]
          },
          {
             "data" : [
@@ -124,8 +127,8 @@
                   10
                ]
             ],
-            "name" : "007",
-            "id" : "007"
+            "id" : "007",
+            "name" : "007"
          },
          {
             "data" : [
@@ -142,10 +145,12 @@
                   12
                ]
             ],
-            "name" : "008",
-            "id" : "008"
+            "id" : "008",
+            "name" : "008"
          },
          {
+            "id" : "009",
+            "name" : "009",
             "data" : [
                [
                   "Perl",
@@ -159,13 +164,11 @@
                   "Blog",
                   13
                ]
-            ],
-            "name" : "009",
-            "id" : "009"
+            ]
          },
          {
-            "name" : "010",
             "id" : "010",
+            "name" : "010",
             "data" : [
                [
                   "Perl",
@@ -236,6 +239,8 @@
             ]
          },
          {
+            "name" : "014",
+            "id" : "014",
             "data" : [
                [
                   "Perl",
@@ -249,9 +254,7 @@
                   "Blog",
                   15
                ]
-            ],
-            "name" : "014",
-            "id" : "014"
+            ]
          },
          {
             "id" : "015",
@@ -272,8 +275,6 @@
             ]
          },
          {
-            "name" : "016",
-            "id" : "016",
             "data" : [
                [
                   "Perl",
@@ -287,11 +288,11 @@
                   "Blog",
                   12
                ]
-            ]
+            ],
+            "name" : "016",
+            "id" : "016"
          },
          {
-            "name" : "017",
-            "id" : "017",
             "data" : [
                [
                   "Perl",
@@ -305,9 +306,13 @@
                   "Blog",
                   12
                ]
-            ]
+            ],
+            "id" : "017",
+            "name" : "017"
          },
          {
+            "id" : "018",
+            "name" : "018",
             "data" : [
                [
                   "Perl",
@@ -321,9 +326,7 @@
                   "Blog",
                   14
                ]
-            ],
-            "id" : "018",
-            "name" : "018"
+            ]
          },
          {
             "data" : [
@@ -344,8 +347,6 @@
             "name" : "019"
          },
          {
-            "name" : "020",
-            "id" : "020",
             "data" : [
                [
                   "Perl",
@@ -359,9 +360,13 @@
                   "Blog",
                   13
                ]
-            ]
+            ],
+            "id" : "020",
+            "name" : "020"
          },
          {
+            "id" : "021",
+            "name" : "021",
             "data" : [
                [
                   "Perl",
@@ -375,9 +380,7 @@
                   "Blog",
                   10
                ]
-            ],
-            "id" : "021",
-            "name" : "021"
+            ]
          },
          {
             "data" : [
@@ -416,8 +419,6 @@
             "name" : "023"
          },
          {
-            "id" : "024",
-            "name" : "024",
             "data" : [
                [
                   "Perl",
@@ -431,11 +432,11 @@
                   "Blog",
                   11
                ]
-            ]
+            ],
+            "id" : "024",
+            "name" : "024"
          },
          {
-            "id" : "025",
-            "name" : "025",
             "data" : [
                [
                   "Perl",
@@ -449,7 +450,9 @@
                   "Blog",
                   12
                ]
-            ]
+            ],
+            "name" : "025",
+            "id" : "025"
          },
          {
             "id" : "026",
@@ -488,6 +491,8 @@
             "name" : "027"
          },
          {
+            "id" : "028",
+            "name" : "028",
             "data" : [
                [
                   "Perl",
@@ -501,13 +506,9 @@
                   "Blog",
                   9
                ]
-            ],
-            "id" : "028",
-            "name" : "028"
+            ]
          },
          {
-            "name" : "029",
-            "id" : "029",
             "data" : [
                [
                   "Perl",
@@ -521,7 +522,9 @@
                   "Blog",
                   12
                ]
-            ]
+            ],
+            "id" : "029",
+            "name" : "029"
          },
          {
             "data" : [
@@ -560,6 +563,8 @@
             ]
          },
          {
+            "name" : "032",
+            "id" : "032",
             "data" : [
                [
                   "Perl",
@@ -573,13 +578,11 @@
                   "Blog",
                   10
                ]
-            ],
-            "name" : "032",
-            "id" : "032"
+            ]
          },
          {
-            "name" : "033",
             "id" : "033",
+            "name" : "033",
             "data" : [
                [
                   "Perl",
@@ -596,6 +599,8 @@
             ]
          },
          {
+            "id" : "034",
+            "name" : "034",
             "data" : [
                [
                   "Perl",
@@ -609,9 +614,7 @@
                   "Blog",
                   11
                ]
-            ],
-            "name" : "034",
-            "id" : "034"
+            ]
          },
          {
             "data" : [
@@ -628,8 +631,8 @@
                   9
                ]
             ],
-            "id" : "035",
-            "name" : "035"
+            "name" : "035",
+            "id" : "035"
          },
          {
             "id" : "036",
@@ -650,8 +653,6 @@
             ]
          },
          {
-            "id" : "037",
-            "name" : "037",
             "data" : [
                [
                   "Perl",
@@ -665,11 +666,11 @@
                   "Blog",
                   9
                ]
-            ]
+            ],
+            "name" : "037",
+            "id" : "037"
          },
          {
-            "id" : "038",
-            "name" : "038",
             "data" : [
                [
                   "Perl",
@@ -683,9 +684,13 @@
                   "Blog",
                   12
                ]
-            ]
+            ],
+            "id" : "038",
+            "name" : "038"
          },
          {
+            "name" : "039",
+            "id" : "039",
             "data" : [
                [
                   "Perl",
@@ -699,13 +704,9 @@
                   "Blog",
                   12
                ]
-            ],
-            "name" : "039",
-            "id" : "039"
+            ]
          },
          {
-            "id" : "040",
-            "name" : "040",
             "data" : [
                [
                   "Perl",
@@ -719,7 +720,9 @@
                   "Blog",
                   10
                ]
-            ]
+            ],
+            "id" : "040",
+            "name" : "040"
          },
          {
             "data" : [
@@ -736,10 +739,12 @@
                   9
                ]
             ],
-            "name" : "041",
-            "id" : "041"
+            "id" : "041",
+            "name" : "041"
          },
          {
+            "name" : "042",
+            "id" : "042",
             "data" : [
                [
                   "Perl",
@@ -753,11 +758,11 @@
                   "Blog",
                   11
                ]
-            ],
-            "id" : "042",
-            "name" : "042"
+            ]
          },
          {
+            "id" : "043",
+            "name" : "043",
             "data" : [
                [
                   "Perl",
@@ -771,13 +776,11 @@
                   "Blog",
                   11
                ]
-            ],
-            "id" : "043",
-            "name" : "043"
+            ]
          },
          {
-            "id" : "044",
             "name" : "044",
+            "id" : "044",
             "data" : [
                [
                   "Perl",
@@ -794,8 +797,6 @@
             ]
          },
          {
-            "id" : "045",
-            "name" : "045",
             "data" : [
                [
                   "Perl",
@@ -809,9 +810,13 @@
                   "Blog",
                   11
                ]
-            ]
+            ],
+            "id" : "045",
+            "name" : "045"
          },
          {
+            "name" : "046",
+            "id" : "046",
             "data" : [
                [
                   "Perl",
@@ -825,9 +830,7 @@
                   "Blog",
                   10
                ]
-            ],
-            "name" : "046",
-            "id" : "046"
+            ]
          },
          {
             "data" : [
@@ -848,6 +851,8 @@
             "name" : "047"
          },
          {
+            "name" : "048",
+            "id" : "048",
             "data" : [
                [
                   "Perl",
@@ -861,13 +866,9 @@
                   "Blog",
                   12
                ]
-            ],
-            "name" : "048",
-            "id" : "048"
+            ]
          },
          {
-            "id" : "049",
-            "name" : "049",
             "data" : [
                [
                   "Perl",
@@ -881,9 +882,13 @@
                   "Blog",
                   12
                ]
-            ]
+            ],
+            "name" : "049",
+            "id" : "049"
          },
          {
+            "name" : "050",
+            "id" : "050",
             "data" : [
                [
                   "Perl",
@@ -897,11 +902,11 @@
                   "Blog",
                   12
                ]
-            ],
-            "id" : "050",
-            "name" : "050"
+            ]
          },
          {
+            "name" : "051",
+            "id" : "051",
             "data" : [
                [
                   "Perl",
@@ -915,11 +920,11 @@
                   "Blog",
                   11
                ]
-            ],
-            "id" : "051",