- Added solution by Lubos Kolouch.

13 files changed, 1137 insertions, 1122 deletions

diff --git a/stats/pwc-current.json b/stats/pwc-current.json
index d279e8d77a..5b4d1ef0e7 100644
--- a/stats/pwc-current.json
+++ b/stats/pwc-current.json
@@ -1,154 +1,30 @@
 {
-   "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
-   },
-   "series" : [
-      {
-         "data" : [
-            {
-               "drilldown" : "Cheok-Yin Fung",
-               "y" : 1,
-               "name" : "Cheok-Yin Fung"
-            },
-            {
-               "drilldown" : "Cristina Heredia",
-               "name" : "Cristina Heredia",
-               "y" : 1
-            },
-            {
-               "name" : "Dave Jacoby",
-               "y" : 3,
-               "drilldown" : "Dave Jacoby"
-            },
-            {
-               "drilldown" : "E. Choroba",
-               "name" : "E. Choroba",
-               "y" : 2
-            },
-            {
-               "name" : "Flavio Poletti",
-               "y" : 6,
-               "drilldown" : "Flavio Poletti"
-            },
-            {
-               "drilldown" : "James Smith",
-               "y" : 3,
-               "name" : "James Smith"
-            },
-            {
-               "y" : 2,
-               "name" : "Jorg Sommrey",
-               "drilldown" : "Jorg Sommrey"
-            },
-            {
-               "name" : "Lance Wicks",
-               "y" : 2,
-               "drilldown" : "Lance Wicks"
-            },
-            {
-               "drilldown" : "Luca Ferrari",
-               "name" : "Luca Ferrari",
-               "y" : 4
-            },
-            {
-               "drilldown" : "Lucas Ransan",
-               "y" : 2,
-               "name" : "Lucas Ransan"
-            },
-            {
-               "name" : "Mark Anderson",
-               "y" : 2,
-               "drilldown" : "Mark Anderson"
-            },
-            {
-               "y" : 1,
-               "name" : "Mohammad S Anwar",
-               "drilldown" : "Mohammad S Anwar"
-            },
-            {
-               "drilldown" : "Niels van Dijke",
-               "y" : 2,
-               "name" : "Niels van Dijke"
-            },
-            {
-               "drilldown" : "Paulo Custodio",
-               "y" : 2,
-               "name" : "Paulo Custodio"
-            },
-            {
-               "drilldown" : "Roger Bell_West",
-               "name" : "Roger Bell_West",
-               "y" : 4
-            },
-            {
-               "drilldown" : "Simon Proctor",
-               "name" : "Simon Proctor",
-               "y" : 1
-            },
-            {
-               "name" : "Stuart Little",
-               "y" : 4,
-               "drilldown" : "Stuart Little"
-            },
-            {
-               "drilldown" : "Ulrich Rieke",
-               "y" : 2,
-               "name" : "Ulrich Rieke"
-            },
-            {
-               "drilldown" : "W. Luis Mochan",
-               "y" : 3,
-               "name" : "W. Luis Mochan"
-            }
-         ],
-         "name" : "The Weekly Challenge - 121",
-         "colorByPoint" : 1
-      }
-   ],
-   "title" : {
-      "text" : "The Weekly Challenge - 121"
-   },
-   "subtitle" : {
-      "text" : "[Champions: 19] Last updated at 2021-07-16 16:09:32 GMT"
-   },
-   "plotOptions" : {
-      "series" : {
-         "dataLabels" : {
-            "format" : "{point.y}",
-            "enabled" : 1
-         },
-         "borderWidth" : 0
+   "yAxis" : {
+      "title" : {
+         "text" : "Total Solutions"
       }
    },
-   "chart" : {
-      "type" : "column"
-   },
-   "xAxis" : {
-      "type" : "category"
-   },
    "drilldown" : {
       "series" : [
          {
+            "id" : "Cheok-Yin Fung",
             "data" : [
                [
                   "Perl",
                   1
                ]
             ],
-            "name" : "Cheok-Yin Fung",
-            "id" : "Cheok-Yin Fung"
+            "name" : "Cheok-Yin Fung"
          },
          {
-            "id" : "Cristina Heredia",
             "name" : "Cristina Heredia",
             "data" : [
                [
                   "Perl",
                   1
                ]
-            ]
+            ],
+            "id" : "Cristina Heredia"
          },
          {
             "data" : [
@@ -161,20 +37,21 @@
                   1
                ]
             ],
-            "id" : "Dave Jacoby",
-            "name" : "Dave Jacoby"
+            "name" : "Dave Jacoby",
+            "id" : "Dave Jacoby"
          },
          {
             "id" : "E. Choroba",
-            "name" : "E. Choroba",
             "data" : [
                [
                   "Perl",
                   2
                ]
-            ]
+            ],
+            "name" : "E. Choroba"
          },
          {
+            "name" : "Flavio Poletti",
             "data" : [
                [
                   "Perl",
@@ -189,7 +66,6 @@
                   2
                ]
             ],
-            "name" : "Flavio Poletti",
             "id" : "Flavio Poletti"
          },
          {
@@ -208,26 +84,35 @@
          },
          {
             "name" : "Jorg Sommrey",
-            "id" : "Jorg Sommrey",
             "data" : [
                [
                   "Perl",
                   2
                ]
-            ]
+            ],
+            "id" : "Jorg Sommrey"
          },
          {
-            "name" : "Lance Wicks",
-            "id" : "Lance Wicks",
             "data" : [
                [
                   "Perl",
                   2
                ]
+            ],
+            "name" : "Lance Wicks",
+            "id" : "Lance Wicks"
+         },
+         {
+            "id" : "Lubos Kolouch",
+            "name" : "Lubos Kolouch",
+            "data" : [
+               [
+                  "Perl",
+                  1
+               ]
             ]
          },
          {
-            "name" : "Luca Ferrari",
             "id" : "Luca Ferrari",
             "data" : [
                [
@@ -238,37 +123,38 @@
                   "Blog",
                   2
                ]
-            ]
+            ],
+            "name" : "Luca Ferrari"
          },
          {
+            "id" : "Lucas Ransan",
+            "name" : "Lucas Ransan",
             "data" : [
                [
                   "Raku",
                   2
                ]
-            ],
-            "name" : "Lucas Ransan",
-            "id" : "Lucas Ransan"
+            ]
          },
          {
-            "name" : "Mark Anderson",
             "id" : "Mark Anderson",
             "data" : [
                [
                   "Raku",
                   2
                ]
-            ]
+            ],
+            "name" : "Mark Anderson"
          },
          {
-            "name" : "Mohammad S Anwar",
-            "id" : "Mohammad S Anwar",
             "data" : [
                [
                   "Perl",
                   1
                ]
-            ]
+            ],
+            "name" : "Mohammad S Anwar",
+            "id" : "Mohammad S Anwar"
          },
          {
             "data" : [
@@ -281,18 +167,18 @@
             "id" : "Niels van Dijke"
          },
          {
-            "id" : "Paulo Custodio",
-            "name" : "Paulo Custodio",
             "data" : [
                [
                   "Perl",
                   2
                ]
-            ]
+            ],
+            "name" : "Paulo Custodio",
+            "id" : "Paulo Custodio"
          },
          {
-            "name" : "Roger Bell_West",
             "id" : "Roger Bell_West",
+            "name" : "Roger Bell_West",
             "data" : [
                [
                   "Perl",
@@ -319,6 +205,8 @@
             "id" : "Simon Proctor"
          },
          {
+            "id" : "Stuart Little",
+            "name" : "Stuart Little",
             "data" : [
                [
                   "Perl",
@@ -328,13 +216,11 @@
                   "Raku",
                   2
                ]
-            ],
-            "name" : "Stuart Little",
-            "id" : "Stuart Little"
+            ]
          },
          {
-            "name" : "Ulrich Rieke",
             "id" : "Ulrich Rieke",
+            "name" : "Ulrich Rieke",
             "data" : [
                [
                   "Perl",
@@ -343,6 +229,7 @@
             ]
          },
          {
+            "id" : "W. Luis Mochan",
             "data" : [
                [
                   "Perl",
@@ -353,17 +240,145 @@
                   1
                ]
             ],
-            "id" : "W. Luis Mochan",
             "name" : "W. Luis Mochan"
          }
       ]
    },
-   "yAxis" : {
-      "title" : {
-         "text" : "Total Solutions"
+   "title" : {
+      "text" : "The Weekly Challenge - 121"
+   },
+   "series" : [
+      {
+         "colorByPoint" : 1,
+         "name" : "The Weekly Challenge - 121",
+         "data" : [
+            {
+               "y" : 1,
+               "name" : "Cheok-Yin Fung",
+               "drilldown" : "Cheok-Yin Fung"
+            },
+            {
+               "y" : 1,
+               "drilldown" : "Cristina Heredia",
+               "name" : "Cristina Heredia"
+            },
+            {
+               "drilldown" : "Dave Jacoby",
+               "name" : "Dave Jacoby",
+               "y" : 3
+            },
+            {
+               "name" : "E. Choroba",
+               "drilldown" : "E. Choroba",
+               "y" : 2
+            },
+            {
+               "name" : "Flavio Poletti",
+               "drilldown" : "Flavio Poletti",
+               "y" : 6
+            },
+            {
+               "name" : "James Smith",
+               "drilldown" : "James Smith",
+               "y" : 3
+            },
+            {
+               "y" : 2,
+               "drilldown" : "Jorg Sommrey",
+               "name" : "Jorg Sommrey"
+            },
+            {
+               "y" : 2,
+               "drilldown" : "Lance Wicks",
+               "name" : "Lance Wicks"
+            },
+            {
+               "y" : 1,
+               "drilldown" : "Lubos Kolouch",
+               "name" : "Lubos Kolouch"
+            },
+            {
+               "name" : "Luca Ferrari",
+               "drilldown" : "Luca Ferrari",
+               "y" : 4
+            },
+            {
+               "y" : 2,
+               "name" : "Lucas Ransan",
+               "drilldown" : "Lucas Ransan"
+            },
+            {
+               "drilldown" : "Mark Anderson",
+               "name" : "Mark Anderson",
+               "y" : 2
+            },
+            {
+               "drilldown" : "Mohammad S Anwar",
+               "name" : "Mohammad S Anwar",
+               "y" : 1
+            },
+            {
+               "y" : 2,
+               "drilldown" : "Niels van Dijke",
+               "name" : "Niels van Dijke"
+            },
+            {
+               "name" : "Paulo Custodio",
+               "drilldown" : "Paulo Custodio",
+               "y" : 2
+            },
+            {
+               "y" : 4,
+               "name" : "Roger Bell_West",
+               "drilldown" : "Roger Bell_West"
+            },
+            {
+               "y" : 1,
+               "name" : "Simon Proctor",
+               "drilldown" : "Simon Proctor"
+            },
+            {
+               "drilldown" : "Stuart Little",
+               "name" : "Stuart Little",
+               "y" : 4
+            },
+            {
+               "name" : "Ulrich Rieke",
+               "drilldown" : "Ulrich Rieke",
+               "y" : 2
+            },
+            {
+               "y" : 3,
+               "drilldown" : "W. Luis Mochan",
+               "name" : "W. Luis Mochan"
+            }
+         ]
+      }
+   ],
+   "plotOptions" : {
+      "series" : {
+         "dataLabels" : {
+            "enabled" : 1,
+            "format" : "{point.y}"
+         },
+         "borderWidth" : 0
       }
    },
    "legend" : {
       "enabled" : 0
+   },
+   "tooltip" : {
+      "pointFormat" : "<span style='color:{point.color}'>{point.name}</span>: <b>{point.y:f}</b><br/>",
+      "followPointer" : 1,
+      "headerFormat" : "<span style='font-size:11px'>{series.name}</span><br/>"
+   },
+   "subtitle" : {
+      "text" : "[Champions: 20] Last updated at 2021-07-17 11:08:15 GMT"
+   },
+   "xAxis" : {
+      "type" : "category"
+   },
+   "chart" : {
+      "type" : "column"
    }
 }
diff --git a/stats/pwc-language-breakdown-summary.json b/stats/pwc-language-breakdown-summary.json
index 3037a06ba6..6bf273a265 100644
--- a/stats/pwc-language-breakdown-summary.json
+++ b/stats/pwc-language-breakdown-summary.json
@@ -1,33 +1,18 @@
 {
-   "legend" : {
-      "enabled" : "false"
-   },
-   "yAxis" : {
-      "title" : {
-         "text" : null
-      },
-      "min" : 0
-   },
-   "xAxis" : {
-      "type" : "category",
-      "labels" : {
-         "style" : {
-            "fontSize" : "13px",
-            "fontFamily" : "Verdana, sans-serif"
-         }
-      }
-   },
-   "chart" : {
-      "type" : "column"
-   },
-   "subtitle" : {
-      "text" : "Last updated at 2021-07-16 16:09:31 GMT"
-   },
-   "title" : {
-      "text" : "The Weekly Challenge Contributions [2019 - 2021]"
-   },
    "series" : [
       {
+         "dataLabels" : {
+            "y" : 10,
+            "format" : "{point.y:.0f}",
+            "rotation" : -90,
+            "enabled" : "true",
+            "style" : {
+               "fontFamily" : "Verdana, sans-serif",
+               "fontSize" : "13px"
+            },
+            "align" : "right",
+            "color" : "#FFFFFF"
+         },
          "data" : [
             [
                "Blog",
@@ -35,29 +20,44 @@
             ],
             [
                "Perl",
-               5775
+               5776
             ],
             [
                "Raku",
                3614
             ]
          ],
-         "dataLabels" : {
-            "style" : {
-               "fontFamily" : "Verdana, sans-serif",
-               "fontSize" : "13px"
-            },
-            "format" : "{point.y:.0f}",
-            "rotation" : -90,
-            "y" : 10,
-            "enabled" : "true",
-            "align" : "right",
-            "color" : "#FFFFFF"
-         },
          "name" : "Contributions"
       }
    ],
+   "title" : {
+      "text" : "The Weekly Challenge Contributions [2019 - 2021]"
+   },
+   "yAxis" : {
+      "title" : {
+         "text" : null
+      },
+      "min" : 0
+   },
+   "subtitle" : {
+      "text" : "Last updated at 2021-07-17 11:08:15 GMT"
+   },
    "tooltip" : {
       "pointFormat" : "<b>{point.y:.0f}</b>"
+   },
+   "chart" : {
+      "type" : "column"
+   },
+   "xAxis" : {
+      "labels" : {
+         "style" : {
+            "fontSize" : "13px",
+            "fontFamily" : "Verdana, sans-serif"
+         }
+      },
+      "type" : "category"
+   },
+   "legend" : {
+      "enabled" : "false"
    }
 }
diff --git a/stats/pwc-language-breakdown.json b/stats/pwc-language-breakdown.json
index 16d3d82909..421f0d32cc 100644
--- a/stats/pwc-language-breakdown.json
+++ b/stats/pwc-language-breakdown.json
@@ -1,9 +1,24 @@
 {
+   "legend" : {
+      "enabled" : "false"
+   },
+   "xAxis" : {
+      "type" : "category"
+   },
+   "chart" : {
+      "type" : "column"
+   },
+   "tooltip" : {
+      "headerFormat" : "<span style=\"font-size:11px\"></span>",
+      "pointFormat" : "<span style=\"color:{point.color}\">Challenge {point.name}</span>: <b>{point.y:f}</b><br/>",
+      "followPointer" : "true"
+   },
+   "subtitle" : {
+      "text" : "Click the columns to drilldown the language breakdown. Last updated at 2021-07-17 11:08:15 GMT"
+   },
    "drilldown" : {
       "series" : [
          {
-            "id" : "001",
-            "name" : "001",
             "data" : [
                [
                   "Perl",
@@ -17,7 +32,9 @@
                   "Blog",
                   11
                ]
-            ]
+            ],
+            "name" : "001",
+            "id" : "001"
          },
          {
             "id" : "002",
@@ -38,7 +55,6 @@
             ]
          },
          {
-            "id" : "003",
             "name" : "003",
             "data" : [
                [
@@ -53,11 +69,10 @@
                   "Blog",
                   9
                ]
-            ]
+            ],
+            "id" : "003"
          },
          {
-            "id" : "004",
-            "name" : "004",
             "data" : [
                [
                   "Perl",
@@ -71,9 +86,13 @@
                   "Blog",
                   10
                ]
-            ]
+            ],
+            "name" : "004",
+            "id" : "004"
          },
          {
+            "id" : "005",
+            "name" : "005",
             "data" : [
                [
                   "Perl",
@@ -87,11 +106,10 @@
                   "Blog",
                   12
                ]
-            ],
-            "name" : "005",
-            "id" : "005"
+            ]
          },
          {
+            "id" : "006",
             "data" : [
                [
                   "Perl",
@@ -106,10 +124,10 @@
                   7
                ]
             ],
-            "id" : "006",
             "name" : "006"
          },
          {
+            "name" : "007",
             "data" : [
                [
                   "Perl",
@@ -124,12 +142,9 @@
                   10
                ]
             ],
-            "id" : "007",
-            "name" : "007"
+            "id" : "007"
          },
          {
-            "id" : "008",
-            "name" : "008",
             "data" : [
                [
                   "Perl",
@@ -143,10 +158,11 @@
                   "Blog",
                   12
                ]
-            ]
+            ],
+            "name" : "008",
+            "id" : "008"
          },
          {
-            "id" : "009",
             "name" : "009",
             "data" : [
                [
@@ -161,10 +177,10 @@
                   "Blog",
                   13
                ]
-            ]
+            ],
+            "id" : "009"
          },
          {
-            "id" : "010",
             "name" : "010",
             "data" : [
                [
@@ -179,10 +195,10 @@
                   "Blog",
                   11
                ]
-            ]
+            ],
+            "id" : "010"
          },
          {
-            "name" : "011",
             "id" : "011",
             "data" : [
                [
@@ -197,7 +213,8 @@
                   "Blog",
                   10
                ]
-            ]
+            ],
+            "name" : "011"
          },
          {
             "data" : [
@@ -214,10 +231,11 @@
                   11
                ]
             ],
-            "id" : "012",
-            "name" : "012"
+            "name" : "012",
+            "id" : "012"
          },
          {
+            "id" : "013",
             "data" : [
                [
                   "Perl",
@@ -232,7 +250,6 @@
                   13
                ]
             ],
-            "id" : "013",
             "name" : "013"
          },
          {
@@ -254,8 +271,6 @@
             "id" : "014"
          },
          {
-            "name" : "015",
-            "id" : "015",
             "data" : [
                [
                   "Perl",
@@ -269,11 +284,13 @@
                   "Blog",
                   15
                ]
-            ]
+            ],
+            "name" : "015",
+            "id" : "015"
          },
          {
-            "name" : "016",
             "id" : "016",
+            "name" : "016",
             "data" : [
                [
                   "Perl",
@@ -291,7 +308,6 @@
          },
          {
             "id" : "017",
-            "name" : "017",
             "data" : [
                [
                   "Perl",
@@ -305,11 +321,12 @@
                   "Blog",
                   12
                ]
-            ]
+            ],
+            "name" : "017"
          },
          {
-            "name" : "018",
             "id" : "018",
+            "name" : "018",
             "data" : [
                [
                   "Perl",
@@ -326,6 +343,7 @@
             ]
          },
          {
+            "id" : "019",
             "data" : [
                [
                   "Perl",
@@ -340,7 +358,6 @@
                   13
                ]
             ],
-            "id" : "019",
             "name" : "019"
          },
          {
@@ -362,7 +379,6 @@
             ]
          },
          {
-            "id" : "021",
             "name" : "021",
             "data" : [
                [
@@ -377,7 +393,8 @@
                   "Blog",
                   10
                ]
-            ]
+            ],
+            "id" : "021"
          },
          {
             "id" : "022",
@@ -398,7 +415,6 @@
             ]
          },
          {
-            "id" : "023",
             "name" : "023",
             "data" : [
                [
@@ -413,7 +429,8 @@
                   "Blog",
                   12
                ]
-            ]
+            ],
+            "id" : "023"
          },
          {
             "data" : [
@@ -434,6 +451,8 @@
             "id" : "024"
          },
          {
+            "id" : "025",
+            "name" : "025",
             "data" : [
                [
                   "Perl",
@@ -447,13 +466,10 @@
                   "Blog",
                   12
                ]
-            ],
-            "name" : "025",
-            "id" : "025"
+            ]
          },
          {
             "id" : "026",
-            "name" : "026",
             "data" : [
                [
                   "Perl",
@@ -467,9 +483,11 @@
                   "Blog",
                   10
                ]
-            ]
+            ],
+            "name" : "026"
          },
          {
+            "id" : "027",
             "data" : [
                [
                   "Perl",
@@ -484,12 +502,10 @@
                   9
                ]
             ],
-            "id" : "027",
             "name" : "027"
          },
          {
             "id" : "028",
-            "name" : "028",
             "data" : [
                [
                   "Perl",
@@ -503,9 +519,11 @@
                   "Blog",
                   9
                ]
-            ]
+            ],
+            "name" : "028"
          },
          {
+            "id" : "029",
             "data" : [
                [
                   "Perl",
@@ -520,12 +538,10 @@
                   12
                ]
             ],
-            "name" : "029",
-            "id" : "029"
+            "name" : "029"
          },
          {
             "name" : "030",
-            "id" : "030",
             "data" : [
                [
                   "Perl",
@@ -539,7 +555,8 @@
                   "Blog",
                   10
                ]
-            ]
+            ],
+            "id" : "030"
          },
          {
             "data" : [
@@ -556,10 +573,11 @@
                   9
                ]
             ],
-            "id" : "031",
-            "name" : "031"
+            "name" : "031",
+            "id" : "031"
          },
          {
+            "name" : "032",
             "data" : [
                [
                   "Perl",
@@ -574,12 +592,10 @@
                   10
                ]
             ],
-            "id" : "032",
-            "name" : "032"
+            "id" : "032"
          },
          {
             "name" : "033",
-            "id" : "033",
             "data" : [
                [
                   "Perl",
@@ -593,7 +609,8 @@
                   "Blog",
                   10
                ]
-            ]
+            ],
+            "id" : "033"
          },
          {
             "data" : [
@@ -610,10 +627,11 @@
                   11
                ]
             ],
-            "id" : "034",
-            "name" : "034"
+            "name" : "034",
+            "id" : "034"
          },
          {
+            "name" : "035",
             "data" : [
                [
                   "Perl",
@@ -628,7 +646,6 @@
                   9
                ]
             ],
-            "name" : "035",
             "id" : "035"
          },
          {
@@ -668,6 +685,8 @@
             "id" : "037"
          },
          {
+            "id" : "038",
+            "name" : "038",
             "data" : [
                [
                   "Perl",
@@ -681,13 +700,9 @@
                   "Blog",
                   12
                ]
-            ],
-            "id" : "038",
-            "name" : "038"
+            ]
          },
          {
-            "id" : "039",
-            "name" : "039",
             "data" : [
                [
                   "Perl",
@@ -701,11 +716,11 @@
                   "Blog",
                   12
                ]
-            ]
+            ],
+            "name" : "039",
+            "id" : "039"
          },
          {
-            "id" : "040",
-            "name" : "040",
             "data" : [
                [
                   "Perl",
@@ -719,9 +734,12 @@
                   "Blog",
                   10
                ]
-            ]
+            ],
+            "name" : "040",
+            "id" : "040"
          },
          {
+            "id" : "041",
             "data" : [
                [
                   "Perl",
@@ -736,12 +754,9 @@
                   9
                ]
             ],
-            "name" : "041",
-            "id" : "041"
+            "name" : "041"
          },
          {
-            "id" : "042",
-            "name" : "042",
             "data" : [
                [
                   "Perl",
@@ -755,7 +770,9 @@
                   "Blog",
                   11
                ]
-            ]
+            ],
+            "name" : "042",
+            "id" : "042"
          },
          {
             "data" : [
@@ -772,10 +789,11 @@
                   11
                ]
             ],
-            "id" : "043",
-            "name" : "043"
+            "name" : "043",
+            "id" : "043"
          },
          {
+            "id" : "044",
             "data" : [
                [
                   "Perl",
@@ -790,12 +808,10 @@
                   11
                ]
             ],
-            "id" : "044",
             "name" : "044"
          },
          {
             "name" : "045",
-            "id" : "045",
             "data" : [
                [
                   "Perl",
@@ -809,7 +825,8 @@
                   "Blog",
                   11
                ]
-            ]
+            ],
+            "id" : "045"