- Added solutions by Cheok-Yin Fung.

13 files changed, 1309 insertions, 1290 deletions

diff --git a/stats/pwc-current.json b/stats/pwc-current.json
index 1f6db12a8d..09a08c7e2d 100644
--- a/stats/pwc-current.json
+++ b/stats/pwc-current.json
@@ -1,4 +1,15 @@
 {
+   "tooltip" : {
+      "followPointer" : 1,
+      "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/>"
+   },
+   "legend" : {
+      "enabled" : 0
+   },
+   "chart" : {
+      "type" : "column"
+   },
    "yAxis" : {
       "title" : {
          "text" : "Total Solutions"
@@ -7,18 +18,16 @@
    "drilldown" : {
       "series" : [
          {
+            "id" : "Abigail",
+            "name" : "Abigail",
             "data" : [
                [
                   "Perl",
                   2
                ]
-            ],
-            "id" : "Abigail",
-            "name" : "Abigail"
+            ]
          },
          {
-            "name" : "Adam Russell",
-            "id" : "Adam Russell",
             "data" : [
                [
                   "Perl",
@@ -28,11 +37,11 @@
                   "Blog",
                   1
                ]
-            ]
+            ],
+            "id" : "Adam Russell",
+            "name" : "Adam Russell"
          },
          {
-            "id" : "Andinus",
-            "name" : "Andinus",
             "data" : [
                [
                   "Raku",
@@ -42,9 +51,13 @@
                   "Blog",
                   1
                ]
-            ]
+            ],
+            "name" : "Andinus",
+            "id" : "Andinus"
          },
          {
+            "id" : "Arne Sommer",
+            "name" : "Arne Sommer",
             "data" : [
                [
                   "Perl",
@@ -58,9 +71,7 @@
                   "Blog",
                   1
                ]
-            ],
-            "name" : "Arne Sommer",
-            "id" : "Arne Sommer"
+            ]
          },
          {
             "data" : [
@@ -77,6 +88,8 @@
             "name" : "Athanasius"
          },
          {
+            "id" : "Bartosz Jarzyna",
+            "name" : "Bartosz Jarzyna",
             "data" : [
                [
                   "Perl",
@@ -86,19 +99,31 @@
                   "Blog",
                   1
                ]
-            ],
-            "name" : "Bartosz Jarzyna",
-            "id" : "Bartosz Jarzyna"
+            ]
          },
          {
             "data" : [
                [
+                  "Perl",
+                  2
+               ],
+               [
                   "Blog",
                   1
                ]
             ],
+            "id" : "Cheok-Yin Fung",
+            "name" : "Cheok-Yin Fung"
+         },
+         {
+            "name" : "Colin Crain",
             "id" : "Colin Crain",
-            "name" : "Colin Crain"
+            "data" : [
+               [
+                  "Blog",
+                  1
+               ]
+            ]
          },
          {
             "data" : [
@@ -111,8 +136,6 @@
             "name" : "Dave Cross"
          },
          {
-            "name" : "Dave Jacoby",
-            "id" : "Dave Jacoby",
             "data" : [
                [
                   "Perl",
@@ -122,17 +145,19 @@
                   "Blog",
                   1
                ]
-            ]
+            ],
+            "id" : "Dave Jacoby",
+            "name" : "Dave Jacoby"
          },
          {
+            "id" : "E. Choroba",
+            "name" : "E. Choroba",
             "data" : [
                [
                   "Perl",
                   2
                ]
-            ],
-            "id" : "E. Choroba",
-            "name" : "E. Choroba"
+            ]
          },
          {
             "id" : "Feng Chang",
@@ -145,6 +170,8 @@
             ]
          },
          {
+            "id" : "Flavio Poletti",
+            "name" : "Flavio Poletti",
             "data" : [
                [
                   "Perl",
@@ -158,39 +185,37 @@
                   "Blog",
                   2
                ]
-            ],
-            "id" : "Flavio Poletti",
-            "name" : "Flavio Poletti"
+            ]
          },
          {
-            "name" : "James Smith",
-            "id" : "James Smith",
             "data" : [
                [
                   "Perl",
                   2
                ]
-            ]
+            ],
+            "id" : "James Smith",
+            "name" : "James Smith"
          },
          {
+            "name" : "Jan Krnavek",
+            "id" : "Jan Krnavek",
             "data" : [
                [
                   "Raku",
                   2
                ]
-            ],
-            "name" : "Jan Krnavek",
-            "id" : "Jan Krnavek"
+            ]
          },
          {
-            "name" : "Jorg Sommrey",
-            "id" : "Jorg Sommrey",
             "data" : [
                [
                   "Perl",
                   2
                ]
-            ]
+            ],
+            "id" : "Jorg Sommrey",
+            "name" : "Jorg Sommrey"
          },
          {
             "name" : "Laurent Rosenfeld",
@@ -211,8 +236,6 @@
             ]
          },
          {
-            "id" : "Luca Ferrari",
-            "name" : "Luca Ferrari",
             "data" : [
                [
                   "Raku",
@@ -222,17 +245,19 @@
                   "Blog",
                   2
                ]
-            ]
+            ],
+            "name" : "Luca Ferrari",
+            "id" : "Luca Ferrari"
          },
          {
+            "name" : "Mark Anderson",
+            "id" : "Mark Anderson",
             "data" : [
                [
                   "Raku",
                   1
                ]
-            ],
-            "name" : "Mark Anderson",
-            "id" : "Mark Anderson"
+            ]
          },
          {
             "id" : "Niels van Dijke",
@@ -245,8 +270,8 @@
             ]
          },
          {
-            "name" : "Pete Houston",
             "id" : "Pete Houston",
+            "name" : "Pete Houston",
             "data" : [
                [
                   "Perl",
@@ -255,8 +280,6 @@
             ]
          },
          {
-            "name" : "Roger Bell_West",
-            "id" : "Roger Bell_West",
             "data" : [
                [
                   "Perl",
@@ -270,7 +293,9 @@
                   "Blog",
                   1
                ]
-            ]
+            ],
+            "id" : "Roger Bell_West",
+            "name" : "Roger Bell_West"
          },
          {
             "data" : [
@@ -283,12 +308,10 @@
                   1
                ]
             ],
-            "id" : "Simon Green",
-            "name" : "Simon Green"
+            "name" : "Simon Green",
+            "id" : "Simon Green"
          },
          {
-            "name" : "Stuart Little",
-            "id" : "Stuart Little",
             "data" : [
                [
                   "Perl",
@@ -298,7 +321,9 @@
                   "Raku",
                   2
                ]
-            ]
+            ],
+            "id" : "Stuart Little",
+            "name" : "Stuart Little"
          },
          {
             "data" : [
@@ -311,12 +336,10 @@
                   2
                ]
             ],
-            "name" : "Ulrich Rieke",
-            "id" : "Ulrich Rieke"
+            "id" : "Ulrich Rieke",
+            "name" : "Ulrich Rieke"
          },
          {
-            "name" : "W. Luis Mochan",
-            "id" : "W. Luis Mochan",
             "data" : [
                [
                   "Perl",
@@ -326,98 +349,82 @@
                   "Blog",
                   1
                ]
-            ]
+            ],
+            "name" : "W. Luis Mochan",
+            "id" : "W. Luis Mochan"
          }
       ]
    },
-   "tooltip" : {
-      "followPointer" : 1,
-      "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/>"
-   },
    "title" : {
       "text" : "Perl Weekly Challenge - 115"
    },
-   "chart" : {
-      "type" : "column"
-   },
-   "legend" : {
-      "enabled" : 0
-   },
-   "plotOptions" : {
-      "series" : {
-         "borderWidth" : 0,
-         "dataLabels" : {
-            "format" : "{point.y}",
-            "enabled" : 1
-         }
-      }
-   },
-   "xAxis" : {
-      "type" : "category"
-   },
    "series" : [
       {
          "data" : [
             {
-               "drilldown" : "Abigail",
                "y" : 2,
+               "drilldown" : "Abigail",
                "name" : "Abigail"
             },
             {
-               "name" : "Adam Russell",
+               "drilldown" : "Adam Russell",
                "y" : 3,
-               "drilldown" : "Adam Russell"
+               "name" : "Adam Russell"
             },
             {
                "name" : "Andinus",
-               "y" : 2,
-               "drilldown" : "Andinus"
+               "drilldown" : "Andinus",
+               "y" : 2
             },
             {
-               "drilldown" : "Arne Sommer",
+               "name" : "Arne Sommer",
                "y" : 5,
-               "name" : "Arne Sommer"
+               "drilldown" : "Arne Sommer"
             },
             {
-               "drilldown" : "Athanasius",
+               "name" : "Athanasius",
                "y" : 2,
-               "name" : "Athanasius"
+               "drilldown" : "Athanasius"
             },
             {
                "name" : "Bartosz Jarzyna",
-               "drilldown" : "Bartosz Jarzyna",
+               "y" : 3,
+               "drilldown" : "Bartosz Jarzyna"
+            },
+            {
+               "name" : "Cheok-Yin Fung",
+               "drilldown" : "Cheok-Yin Fung",
                "y" : 3
             },
             {
-               "drilldown" : "Colin Crain",
                "y" : 1,
+               "drilldown" : "Colin Crain",
                "name" : "Colin Crain"
             },
             {
-               "drilldown" : "Dave Cross",
                "y" : 2,
+               "drilldown" : "Dave Cross",
                "name" : "Dave Cross"
             },
             {
-               "name" : "Dave Jacoby",
+               "drilldown" : "Dave Jacoby",
                "y" : 3,
-               "drilldown" : "Dave Jacoby"
+               "name" : "Dave Jacoby"
             },
             {
-               "y" : 2,
+               "name" : "E. Choroba",
                "drilldown" : "E. Choroba",
-               "name" : "E. Choroba"
+               "y" : 2
             },
             {
-               "name" : "Feng Chang",
+               "y" : 2,
                "drilldown" : "Feng Chang",
-               "y" : 2
+               "name" : "Feng Chang"
             },
             {
-               "name" : "Flavio Poletti",
+               "y" : 6,
                "drilldown" : "Flavio Poletti",
-               "y" : 6
+               "name" : "Flavio Poletti"
             },
             {
                "y" : 2,
@@ -430,33 +437,33 @@
                "y" : 2
             },
             {
-               "name" : "Jorg Sommrey",
+               "drilldown" : "Jorg Sommrey",
                "y" : 2,
-               "drilldown" : "Jorg Sommrey"
+               "name" : "Jorg Sommrey"
             },
             {
                "name" : "Laurent Rosenfeld",
-               "y" : 5,
-               "drilldown" : "Laurent Rosenfeld"
+               "drilldown" : "Laurent Rosenfeld",
+               "y" : 5
             },
             {
+               "name" : "Luca Ferrari",
                "y" : 4,
-               "drilldown" : "Luca Ferrari",
-               "name" : "Luca Ferrari"
+               "drilldown" : "Luca Ferrari"
             },
             {
+               "name" : "Mark Anderson",
                "y" : 1,
-               "drilldown" : "Mark Anderson",
-               "name" : "Mark Anderson"
+               "drilldown" : "Mark Anderson"
             },
             {
                "name" : "Niels van Dijke",
-               "drilldown" : "Niels van Dijke",
-               "y" : 2
+               "y" : 2,
+               "drilldown" : "Niels van Dijke"
             },
             {
-               "drilldown" : "Pete Houston",
                "y" : 2,
+               "drilldown" : "Pete Houston",
                "name" : "Pete Houston"
             },
             {
@@ -465,31 +472,43 @@
                "name" : "Roger Bell_West"
             },
             {
-               "y" : 3,
                "drilldown" : "Simon Green",
+               "y" : 3,
                "name" : "Simon Green"
             },
             {
-               "drilldown" : "Stuart Little",
+               "name" : "Stuart Little",
                "y" : 4,
-               "name" : "Stuart Little"
+               "drilldown" : "Stuart Little"
             },
             {
-               "drilldown" : "Ulrich Rieke",
                "y" : 4,
+               "drilldown" : "Ulrich Rieke",
                "name" : "Ulrich Rieke"
             },
             {
-               "y" : 3,
+               "name" : "W. Luis Mochan",
                "drilldown" : "W. Luis Mochan",
-               "name" : "W. Luis Mochan"
+               "y" : 3
             }
          ],
-         "name" : "Perl Weekly Challenge - 115",
-         "colorByPoint" : 1
+         "colorByPoint" : 1,
+         "name" : "Perl Weekly Challenge - 115"
       }
    ],
+   "xAxis" : {
+      "type" : "category"
+   },
+   "plotOptions" : {
+      "series" : {
+         "dataLabels" : {
+            "enabled" : 1,
+            "format" : "{point.y}"
+         },
+         "borderWidth" : 0
+      }
+   },
    "subtitle" : {
-      "text" : "[Champions: 25] Last updated at 2021-06-06 22:11:39 GMT"
+      "text" : "[Champions: 26] Last updated at 2021-06-06 22:14:31 GMT"
    }
 }
diff --git a/stats/pwc-language-breakdown-summary.json b/stats/pwc-language-breakdown-summary.json
index 505905953a..27cba36bb2 100644
--- a/stats/pwc-language-breakdown-summary.json
+++ b/stats/pwc-language-breakdown-summary.json
@@ -1,7 +1,4 @@
 {
-   "title" : {
-      "text" : "Perl Weekly Challenge Contributions [2019 - 2020]"
-   },
    "legend" : {
       "enabled" : "false"
    },
@@ -17,29 +14,31 @@
    "tooltip" : {
       "pointFormat" : "<b>{point.y:.0f}</b>"
    },
-   "subtitle" : {
-      "text" : "Last updated at 2021-06-06 22:11:39 GMT"
-   },
    "xAxis" : {
+      "type" : "category",
       "labels" : {
          "style" : {
-            "fontSize" : "13px",
-            "fontFamily" : "Verdana, sans-serif"
+            "fontFamily" : "Verdana, sans-serif",
+            "fontSize" : "13px"
          }
-      },
-      "type" : "category"
+      }
+   },
+   "subtitle" : {
+      "text" : "Last updated at 2021-06-06 22:14:30 GMT"
+   },
+   "title" : {
+      "text" : "Perl Weekly Challenge Contributions [2019 - 2020]"
    },
    "series" : [
       {
-         "name" : "Contributions",
          "data" : [
             [
                "Blog",
-               1619
+               1620
             ],
             [
                "Perl",
-               5444
+               5446
             ],
             [
                "Raku",
@@ -47,17 +46,18 @@
             ]
          ],
          "dataLabels" : {
+            "rotation" : -90,
+            "y" : 10,
+            "color" : "#FFFFFF",
             "enabled" : "true",
+            "align" : "right",
             "style" : {
                "fontFamily" : "Verdana, sans-serif",
                "fontSize" : "13px"
             },
-            "rotation" : -90,
-            "format" : "{point.y:.0f}",
-            "align" : "right",
-            "color" : "#FFFFFF",
-            "y" : 10
-         }
+            "format" : "{point.y:.0f}"
+         },
+         "name" : "Contributions"
       }
    ]
 }
diff --git a/stats/pwc-language-breakdown.json b/stats/pwc-language-breakdown.json
index 5b70b82de6..6834f5e8cc 100644
--- a/stats/pwc-language-breakdown.json
+++ b/stats/pwc-language-breakdown.json
@@ -8,11 +8,11 @@
          }
       }
    },
-   "chart" : {
-      "type" : "column"
+   "xAxis" : {
+      "type" : "category"
    },
-   "legend" : {
-      "enabled" : "false"
+   "subtitle" : {
+      "text" : "Click the columns to drilldown the language breakdown. Last updated at 2021-06-06 22:14:31 GMT"
    },
    "title" : {
       "text" : "Perl Weekly Challenge Language"
@@ -34,8 +34,8 @@
                   11
                ]
             ],
-            "name" : "001",
-            "id" : "001"
+            "id" : "001",
+            "name" : "001"
          },
          {
             "id" : "002",
@@ -74,6 +74,8 @@
             ]
          },
          {
+            "id" : "004",
+            "name" : "004",
             "data" : [
                [
                   "Perl",
@@ -87,13 +89,9 @@
                   "Blog",
                   10
                ]
-            ],
-            "name" : "004",
-            "id" : "004"
+            ]
          },
          {
-            "name" : "005",
-            "id" : "005",
             "data" : [
                [
                   "Perl",
@@ -107,11 +105,13 @@
                   "Blog",
                   12
                ]
-            ]
+            ],
+            "name" : "005",
+            "id" : "005"
          },
          {
-            "name" : "006",
             "id" : "006",
+            "name" : "006",
             "data" : [
                [
                   "Perl",
@@ -128,8 +128,6 @@
             ]
          },
          {
-            "id" : "007",
-            "name" : "007",
             "data" : [
                [
                   "Perl",
@@ -143,7 +141,9 @@
                   "Blog",
                   10
                ]
-            ]
+            ],
+            "id" : "007",
+            "name" : "007"
          },
          {
             "data" : [
@@ -164,8 +164,6 @@
             "id" : "008"
          },
          {
-            "name" : "009",
-            "id" : "009",
             "data" : [
                [
                   "Perl",
@@ -179,9 +177,13 @@
                   "Blog",
                   13
                ]
-            ]
+            ],
+            "id" : "009",
+            "name" : "009"
          },
          {
+            "name" : "010",
+            "id" : "010",
             "data" : [
                [
                   "Perl",
@@ -195,11 +197,11 @@
                   "Blog",
                   11
                ]
-            ],
-            "name" : "010",
-            "id" : "010"
+            ]
          },
          {
+            "id" : "011",
+            "name" : "011",
             "data" : [
                [
                   "Perl",
@@ -213,9 +215,7 @@
                   "Blog",
                   10
                ]
-            ],
-            "id" : "011",
-            "name" : "011"
+            ]
          },
          {
             "id" : "012",
@@ -236,6 +236,8 @@
             ]
          },
          {
+            "name" : "013",
+            "id" : "013",
             "data" : [
                [
                   "Perl",
@@ -249,13 +251,11 @@
                   "Blog",
                   13
                ]
-            ],
-            "name" : "013",
-            "id" : "013"
+            ]
          },
          {
-            "name" : "014",
             "id" : "014",
+            "name" : "014",
             "data" : [
                [
                   "Perl",
@@ -272,8 +272,6 @@
             ]
          },
          {
-            "id" : "015",
-            "name" : "015",
             "data" : [
                [
                   "Perl",
@@ -287,11 +285,13 @@
                   "Blog",
                   15
                ]
-            ]
+            ],
+            "id" : "015",
+            "name" : "015"
          },
          {
-            "id" : "016",
             "name" : "016",
+            "id" : "016",
             "data" : [
                [
                   "Perl",
@@ -326,6 +326,8 @@
             "name" : "017"
          },
          {
+            "id" : "018",
+            "name" : "018",
             "data" : [
                [
                   "Perl",
@@ -339,13 +341,9 @@
                   "Blog",
                   14
                ]
-            ],
-            "name" : "018",
-            "id" : "018"
+            ]
          },
          {
-            "name" : "019",
-            "id" : "019",
             "data" : [
                [
                   "Perl",
@@ -359,9 +357,13 @@
                   "Blog",
                   13
                ]
-            ]
+            ],
+            "id" : "019",
+            "name" : "019"
          },
          {
+            "id" : "020",
+            "name" : "020",
             "data" : [
                [
                   "Perl",
@@ -375,11 +377,11 @@
                   "Blog",
                   13
                ]
-            ],
-            "name" : "020",
-            "id" : "020"
+            ]
          },
          {
+            "name" : "021",
+            "id" : "021",
             "data" : [
                [
                   "Perl",
@@ -393,9 +395,7 @@
                   "Blog",
                   10
                ]
-            ],
-            "id" : "021",
-            "name" : "021"
+            ]
          },
          {
             "data" : [
@@ -412,12 +412,12 @@
                   10
                ]
             ],
-            "name" : "022",
-            "id" : "022"
+            "id" : "022",
+            "name" : "022"
          },
          {
-            "id" : "023",
             "name" : "023",
+            "id" : "023",
             "data" : [
                [
                   "Perl",
@@ -434,8 +434,8 @@
             ]
          },
          {
-            "id" : "024",
             "name" : "024",
+            "id" : "024",
             "data" : [
                [
                   "Perl",
@@ -452,8 +452,8 @@
             ]
          },
          {
-            "name" : "025",
             "id" : "025",
+            "name" : "025",
             "data" : [
                [
                   "Perl",
@@ -484,10 +484,12 @@
                   10
                ]
             ],
-            "name" : "026",
-            "id" : "026"
+            "id" : "026",
+            "name" : "026"
          },
          {
+            "name" : "027",
+            "id" : "027",
             "data" : [
                [
                   "Perl",
@@ -501,13 +503,9 @@
                   "Blog",
                   9
                ]
-            ],
-            "name" : "027",
-            "id" : "027"
+            ]
          },
          {
-            "name" : "028",
-            "id" : "028",
             "data" : [
                [
                   "Perl",
@@ -521,9 +519,13 @@
                   "Blog",
                   9
                ]
-            ]
+            ],
+            "id" : "028",
+            "name" : "028"
          },
          {
+            "id" : "029",
+            "name" : "029",
             "data" : [
                [
                   "Perl",
@@ -537,11 +539,11 @@
                   "Blog",
                   12
                ]
-            ],
-            "id" : "029",
-            "name" : "029"
+            ]
          },
          {
+            "name" : "030",
+            "id" : "030",
             "data" : [
                [
                   "Perl",
@@ -555,9 +557,7 @@
                   "Blog",
                   10
                ]
-            ],
-            "id" : "030",
-            "name" : "030"
+            ]
          },
          {
             "id" : "031",
@@ -578,8 +578,6 @@
             ]
          },
          {
-            "name" : "032",
-            "id" : "032",
             "data" : [
                [
                   "Perl",
@@ -593,9 +591,13 @@
                   "Blog",
                   10
                ]
-            ]
+            ],
+            "name" : "032",
+            "id" : "032"
          },
          {
+            "id" : "033",
+            "name" : "033",
             "data" : [
                [
                   "Perl",
@@ -609,9 +611,7 @@
                   "Blog",
                   10
                ]
-            ],
-            "id" : "033",
-            "name" : "033"
+            ]
          },
          {
             "name" : "034",
@@ -646,8 +646,8 @@
                   9
                ]
             ],
-            "name" : "035",
-            "id" : "035"
+            "id" : "035",
+            "name" : "035"
          },
          {
             "data" : [
@@ -664,12 +664,12 @@
                   11
                ]
             ],
-            "id" : "036",
-            "name" : "036"
+            "name" : "036",
+            "id" : "036"
          },
          {
-            "id" : "037",
             "name" : "037",
+            "id" : "037",
             "data" : [
                [
                   "Perl",
@@ -686,8 +686,6 @@
             ]
          },
          {
-            "name" : "038",
-            "id" : "038",
             "data" : [
                [
                   "Perl",
@@ -701,11 +699,13 @@
                   "Blog",
                   12
                ]
-            ]
+            ],
+            "name" : "038",
+            "id" : "038"
          },
          {
-            "name" : "039",
             "id" : "039",
+            "name" : "039",
             "data" : [
                [
                   "Perl",
@@ -722,6 +722,8 @@
             ]
          },
          {
+            "name" : "040",
+            "id" : "040",
             "data" : [
                [
                   "Perl",
@@ -735,9 +737,7 @@
                   "Blog",
                   10
                ]
-            ],
-            "id" : "040",
-            "name" : "040"
+            ]
          },
          {
             "data" : [
@@ -754,8 +754,8 @@
                   9
                ]
             ],
-            "id" : "041",
-            "name" : "041"
+            "name" : "041",
+            "id" : "041"
          },
          {
             "data" : [
@@ -776,8 +776,8 @@
             "id" : "042"
          },
          {
-            "name" : "043",
             "id" : "043",
+            "name" : "043",
             "data" : [
                [
                   "Perl",
@@ -808,12 +808,10 @@
                   11
                ]
             ],
-            "name" : "044",
-            "id" : "044"
+            "id" : "044",
+            "name" : "044"
          },
          {
-            "name" : "045",
-            "id" : "045",
             "data" : [
                [
                   "Perl",
@@ -827,9 +825,13 @@
                   "Blog",
                   11
                ]
-            ]
+            ],
+            "id" : "045",
+            "name" : "045"
          },
          {
+            "name" : "046",</