- Added solutions by Laurent Rosenfeld.

12 files changed, 1246 insertions, 1223 deletions

diff --git a/stats/pwc-current.json b/stats/pwc-current.json
index b232b6ecd6..5689dda05e 100644
--- a/stats/pwc-current.json
+++ b/stats/pwc-current.json
@@ -1,137 +1,21 @@
 {
    "subtitle" : {
-      "text" : "[Champions: 18] Last updated at 2020-12-09 04:47:24 GMT"
+      "text" : "[Champions: 19] Last updated at 2020-12-09 04:55:25 GMT"
    },
    "plotOptions" : {
       "series" : {
          "dataLabels" : {
-            "enabled" : 1,
-            "format" : "{point.y}"
+            "format" : "{point.y}",
+            "enabled" : 1
          },
          "borderWidth" : 0
       }
    },
-   "title" : {
-      "text" : "Perl Weekly Challenge - 090"
-   },
-   "xAxis" : {
-      "type" : "category"
-   },
-   "legend" : {
-      "enabled" : 0
-   },
-   "series" : [
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-         "data" : [
-            {
-               "y" : 3,
-               "drilldown" : "Aaron Smith",
-               "name" : "Aaron Smith"
-            },
-            {
-               "y" : 2,
-               "name" : "Alexander Karelas",
-               "drilldown" : "Alexander Karelas"
-            },
-            {
-               "drilldown" : "Alexander Pankoff",
-               "name" : "Alexander Pankoff",
-               "y" : 2
-            },
-            {
-               "drilldown" : "Andinus",
-               "name" : "Andinus",
-               "y" : 2
-            },
-            {
-               "y" : 2,
-               "drilldown" : "Andrew Shitov",
-               "name" : "Andrew Shitov"
-            },
-            {
-               "drilldown" : "Cristina Heredia",
-               "name" : "Cristina Heredia",
-               "y" : 1
-            },
-            {
-               "name" : "Dave Jacoby",
-               "drilldown" : "Dave Jacoby",
-               "y" : 3
-            },
-            {
-               "y" : 2,
-               "name" : "Feng Chang",
-               "drilldown" : "Feng Chang"
-            },
-            {
-               "y" : 4,
-               "drilldown" : "Flavio Poletti",
-               "name" : "Flavio Poletti"
-            },
-            {
-               "drilldown" : "Garrett Goebel",
-               "name" : "Garrett Goebel",
-               "y" : 2
-            },
-            {
-               "y" : 2,
-               "name" : "James Smith",
-               "drilldown" : "James Smith"
-            },
-            {
-               "y" : 2,
-               "name" : "Mark Anderson",
-               "drilldown" : "Mark Anderson"
-            },
-            {
-               "drilldown" : "Pete Houston",
-               "name" : "Pete Houston",
-               "y" : 2
-            },
-            {
-               "name" : "Philip Hood",
-               "drilldown" : "Philip Hood",
-               "y" : 2
-            },
-            {
-               "name" : "Roger Bell_West",
-               "drilldown" : "Roger Bell_West",
-               "y" : 4
-            },
-            {
-               "drilldown" : "Simon Proctor",
-               "name" : "Simon Proctor",
-               "y" : 2
-            },
-            {
-               "y" : 2,
-               "drilldown" : "Stuart Little",
-               "name" : "Stuart Little"
-            },
-            {
-               "y" : 4,
-               "name" : "Ulrich Rieke",
-               "drilldown" : "Ulrich Rieke"
-            }
-         ],
-         "name" : "Perl Weekly Challenge - 090",
-         "colorByPoint" : 1
-      }
-   ],
-   "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/>"
-   },
-   "yAxis" : {
-      "title" : {
-         "text" : "Total Solutions"
-      }
-   },
    "drilldown" : {
       "series" : [
          {
             "id" : "Aaron Smith",
+            "name" : "Aaron Smith",
             "data" : [
                [
                   "Raku",
@@ -141,18 +25,17 @@
                   "Blog",
                   1
                ]
-            ],
-            "name" : "Aaron Smith"
+            ]
          },
          {
-            "name" : "Alexander Karelas",
             "id" : "Alexander Karelas",
             "data" : [
                [
                   "Perl",
                   2
                ]
-            ]
+            ],
+            "name" : "Alexander Karelas"
          },
          {
             "name" : "Alexander Pankoff",
@@ -165,8 +48,8 @@
             "id" : "Alexander Pankoff"
          },
          {
-            "name" : "Andinus",
             "id" : "Andinus",
+            "name" : "Andinus",
             "data" : [
                [
                   "Raku",
@@ -179,28 +62,28 @@
             ]
          },
          {
-            "name" : "Andrew Shitov",
             "id" : "Andrew Shitov",
             "data" : [
                [
                   "Raku",
                   2
                ]
-            ]
+            ],
+            "name" : "Andrew Shitov"
          },
          {
+            "id" : "Cristina Heredia",
             "name" : "Cristina Heredia",
             "data" : [
                [
                   "Perl",
                   1
                ]
-            ],
-            "id" : "Cristina Heredia"
+            ]
          },
          {
-            "name" : "Dave Jacoby",
             "id" : "Dave Jacoby",
+            "name" : "Dave Jacoby",
             "data" : [
                [
                   "Perl",
@@ -219,11 +102,10 @@
                   2
                ]
             ],
-            "id" : "Feng Chang",
-            "name" : "Feng Chang"
+            "name" : "Feng Chang",
+            "id" : "Feng Chang"
          },
          {
-            "name" : "Flavio Poletti",
             "id" : "Flavio Poletti",
             "data" : [
                [
@@ -234,7 +116,8 @@
                   "Blog",
                   2
                ]
-            ]
+            ],
+            "name" : "Flavio Poletti"
          },
          {
             "name" : "Garrett Goebel",
@@ -257,18 +140,36 @@
             "name" : "James Smith"
          },
          {
-            "name" : "Mark Anderson",
-            "id" : "Mark Anderson",
+            "id" : "Laurent Rosenfeld",
+            "name" : "Laurent Rosenfeld",
             "data" : [
                [
+                  "Perl",
+                  2
+               ],
+               [
                   "Raku",
                   2
+               ],
+               [
+                  "Blog",
+                  1
                ]
             ]
          },
          {
-            "name" : "Pete Houston",
+            "data" : [
+               [
+                  "Raku",
+                  2
+               ]
+            ],
+            "name" : "Mark Anderson",
+            "id" : "Mark Anderson"
+         },
+         {
             "id" : "Pete Houston",
+            "name" : "Pete Houston",
             "data" : [
                [
                   "Perl",
@@ -277,8 +178,8 @@
             ]
          },
          {
-            "name" : "Philip Hood",
             "id" : "Philip Hood",
+            "name" : "Philip Hood",
             "data" : [
                [
                   "Raku",
@@ -287,8 +188,6 @@
             ]
          },
          {
-            "name" : "Roger Bell_West",
-            "id" : "Roger Bell_West",
             "data" : [
                [
                   "Perl",
@@ -298,21 +197,23 @@
                   "Raku",
                   2
                ]
-            ]
+            ],
+            "name" : "Roger Bell_West",
+            "id" : "Roger Bell_West"
          },
          {
             "id" : "Simon Proctor",
+            "name" : "Simon Proctor",
             "data" : [
                [
                   "Raku",
                   2
                ]
-            ],
-            "name" : "Simon Proctor"
+            ]
          },
          {
-            "name" : "Stuart Little",
             "id" : "Stuart Little",
+            "name" : "Stuart Little",
             "data" : [
                [
                   "Raku",
@@ -321,7 +222,6 @@
             ]
          },
          {
-            "name" : "Ulrich Rieke",
             "data" : [
                [
                   "Perl",
@@ -332,11 +232,134 @@
                   2
                ]
             ],
+            "name" : "Ulrich Rieke",
             "id" : "Ulrich Rieke"
          }
       ]
    },
    "chart" : {
       "type" : "column"
+   },
+   "title" : {
+      "text" : "Perl Weekly Challenge - 090"
+   },
+   "series" : [
+      {
+         "colorByPoint" : 1,
+         "name" : "Perl Weekly Challenge - 090",
+         "data" : [
+            {
+               "y" : 3,
+               "drilldown" : "Aaron Smith",
+               "name" : "Aaron Smith"
+            },
+            {
+               "name" : "Alexander Karelas",
+               "drilldown" : "Alexander Karelas",
+               "y" : 2
+            },
+            {
+               "y" : 2,
+               "drilldown" : "Alexander Pankoff",
+               "name" : "Alexander Pankoff"
+            },
+            {
+               "name" : "Andinus",
+               "drilldown" : "Andinus",
+               "y" : 2
+            },
+            {
+               "drilldown" : "Andrew Shitov",
+               "name" : "Andrew Shitov",
+               "y" : 2
+            },
+            {
+               "name" : "Cristina Heredia",
+               "drilldown" : "Cristina Heredia",
+               "y" : 1
+            },
+            {
+               "drilldown" : "Dave Jacoby",
+               "name" : "Dave Jacoby",
+               "y" : 3
+            },
+            {
+               "drilldown" : "Feng Chang",
+               "name" : "Feng Chang",
+               "y" : 2
+            },
+            {
+               "name" : "Flavio Poletti",
+               "drilldown" : "Flavio Poletti",
+               "y" : 4
+            },
+            {
+               "y" : 2,
+               "drilldown" : "Garrett Goebel",
+               "name" : "Garrett Goebel"
+            },
+            {
+               "y" : 2,
+               "name" : "James Smith",
+               "drilldown" : "James Smith"
+            },
+            {
+               "y" : 5,
+               "name" : "Laurent Rosenfeld",
+               "drilldown" : "Laurent Rosenfeld"
+            },
+            {
+               "drilldown" : "Mark Anderson",
+               "name" : "Mark Anderson",
+               "y" : 2
+            },
+            {
+               "drilldown" : "Pete Houston",
+               "name" : "Pete Houston",
+               "y" : 2
+            },
+            {
+               "y" : 2,
+               "name" : "Philip Hood",
+               "drilldown" : "Philip Hood"
+            },
+            {
+               "drilldown" : "Roger Bell_West",
+               "name" : "Roger Bell_West",
+               "y" : 4
+            },
+            {
+               "drilldown" : "Simon Proctor",
+               "name" : "Simon Proctor",
+               "y" : 2
+            },
+            {
+               "y" : 2,
+               "drilldown" : "Stuart Little",
+               "name" : "Stuart Little"
+            },
+            {
+               "name" : "Ulrich Rieke",
+               "drilldown" : "Ulrich Rieke",
+               "y" : 4
+            }
+         ]
+      }
+   ],
+   "xAxis" : {
+      "type" : "category"
+   },
+   "legend" : {
+      "enabled" : 0
+   },
+   "tooltip" : {
+      "pointFormat" : "<span style='color:{point.color}'>{point.name}</span>: <b>{point.y:f}</b><br/>",
+      "headerFormat" : "<span style='font-size:11px'>{series.name}</span><br/>",
+      "followPointer" : 1
+   },
+   "yAxis" : {
+      "title" : {
+         "text" : "Total Solutions"
+      }
    }
 }
diff --git a/stats/pwc-language-breakdown-summary.json b/stats/pwc-language-breakdown-summary.json
index 6549e80caa..6c4a191917 100644
--- a/stats/pwc-language-breakdown-summary.json
+++ b/stats/pwc-language-breakdown-summary.json
@@ -1,62 +1,62 @@
 {
-   "subtitle" : {
-      "text" : "Last updated at 2020-12-09 04:47:24 GMT"
-   },
-   "xAxis" : {
-      "labels" : {
-         "style" : {
-            "fontSize" : "13px",
-            "fontFamily" : "Verdana, sans-serif"
-         }
-      },
-      "type" : "category"
-   },
    "title" : {
       "text" : "Perl Weekly Challenge Contributions [2019 - 2020]"
    },
-   "legend" : {
-      "enabled" : "false"
-   },
-   "tooltip" : {
-      "pointFormat" : "<b>{point.y:.0f}</b>"
-   },
    "series" : [
       {
          "data" : [
             [
                "Blog",
-               1169
+               1170
             ],
             [
                "Perl",
-               4036
+               4038
             ],
             [
                "Raku",
-               2674
+               2676
             ]
          ],
+         "name" : "Contributions",
          "dataLabels" : {
-            "color" : "#FFFFFF",
-            "format" : "{point.y:.0f}",
             "align" : "right",
+            "color" : "#FFFFFF",
             "style" : {
                "fontFamily" : "Verdana, sans-serif",
                "fontSize" : "13px"
             },
             "y" : 10,
-            "rotation" : -90,
-            "enabled" : "true"
-         },
-         "name" : "Contributions"
+            "format" : "{point.y:.0f}",
+            "enabled" : "true",
+            "rotation" : -90
+         }
       }
    ],
+   "legend" : {
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+   "xAxis" : {
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+      "labels" : {
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+         }
+      }
+   },
    "yAxis" : {
       "min" : 0,
       "title" : {
          "text" : null
       }
    },
+   "tooltip" : {
+      "pointFormat" : "<b>{point.y:.0f}</b>"
+   },
+   "subtitle" : {
+      "text" : "Last updated at 2020-12-09 04:55:25 GMT"
+   },
    "chart" : {
       "type" : "column"
    }
diff --git a/stats/pwc-language-breakdown.json b/stats/pwc-language-breakdown.json
index 3a717364ba..b6fb614076 100644
--- a/stats/pwc-language-breakdown.json
+++ b/stats/pwc-language-breakdown.json
@@ -1,32 +1,12 @@
 {
-   "xAxis" : {
-      "type" : "category"
-   },
-   "title" : {
-      "text" : "Perl Weekly Challenge Language"
-   },
-   "plotOptions" : {
-      "series" : {
-         "dataLabels" : {
-            "enabled" : 1,
-            "format" : "{point.y}"
-         },
-         "borderWidth" : 0
-      }
-   },
    "subtitle" : {
-      "text" : "Click the columns to drilldown the language breakdown. Last updated at 2020-12-09 04:47:24 GMT"
-   },
-   "legend" : {
-      "enabled" : "false"
-   },
-   "chart" : {
-      "type" : "column"
+      "text" : "Click the columns to drilldown the language breakdown. Last updated at 2020-12-09 04:55:25 GMT"
    },
    "drilldown" : {
       "series" : [
          {
             "id" : "001",
+            "name" : "001",
             "data" : [
                [
                   "Perl",
@@ -40,11 +20,10 @@
                   "Blog",
                   11
                ]
-            ],
-            "name" : "001"
+            ]
          },
          {
-            "name" : "002",
+            "id" : "002",
             "data" : [
                [
                   "Perl",
@@ -59,10 +38,9 @@
                   10
                ]
             ],
-            "id" : "002"
+            "name" : "002"
          },
          {
-            "name" : "003",
             "data" : [
                [
                   "Perl",
@@ -77,9 +55,11 @@
                   9
                ]
             ],
+            "name" : "003",
             "id" : "003"
          },
          {
+            "name" : "004",
             "data" : [
                [
                   "Perl",
@@ -94,12 +74,9 @@
                   10
                ]
             ],
-            "id" : "004",
-            "name" : "004"
+            "id" : "004"
          },
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-            "name" : "005",
-            "id" : "005",
             "data" : [
                [
                   "Perl",
@@ -113,9 +90,13 @@
                   "Blog",
                   12
                ]
-            ]
+            ],
+            "name" : "005",
+            "id" : "005"
          },
          {
+            "id" : "006",
+            "name" : "006",
             "data" : [
                [
                   "Perl",
@@ -129,13 +110,10 @@
                   "Blog",
                   7
                ]
-            ],
-            "id" : "006",
-            "name" : "006"
+            ]
          },
          {
             "name" : "007",
-            "id" : "007",
             "data" : [
                [
                   "Perl",
@@ -149,11 +127,12 @@
                   "Blog",
                   10
                ]
-            ]
+            ],
+            "id" : "007"
          },
          {
-            "name" : "008",
             "id" : "008",
+            "name" : "008",
             "data" : [
                [
                   "Perl",
@@ -170,8 +149,6 @@
             ]
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-            "name" : "009",
-            "id" : "009",
             "data" : [
                [
                   "Perl",
@@ -185,7 +162,9 @@
                   "Blog",
                   13
                ]
-            ]
+            ],
+            "name" : "009",
+            "id" : "009"
          },
          {
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@@ -202,10 +181,11 @@
                   11
                ]
             ],
-            "id" : "010",
-            "name" : "010"
+            "name" : "010",
+            "id" : "010"
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          {
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             "data" : [
                [
                   "Perl",
@@ -220,11 +200,9 @@
                   10
                ]
             ],
-            "id" : "011",
-            "name" : "011"
+            "id" : "011"
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             "id" : "012",
             "data" : [
                [
@@ -239,7 +217,8 @@
                   "Blog",
                   11
                ]
-            ]
+            ],
+            "name" : "012"
          },
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             "data" : [
@@ -256,11 +235,11 @@
                   13
                ]
             ],
-            "id" : "013",
-            "name" : "013"
+            "name" : "013",
+            "id" : "013"
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-            "id" : "014",
+            "name" : "014",
             "data" : [
                [
                   "Perl",
@@ -275,7 +254,7 @@
                   15
                ]
             ],
-            "name" : "014"
+            "id" : "014"
          },
          {
             "name" : "015",
@@ -296,6 +275,7 @@
             "id" : "015"
          },
          {
+            "id" : "016",
             "data" : [
                [
                   "Perl",
@@ -310,11 +290,9 @@
                   12
                ]
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             "data" : [
                [
                   "Perl",
@@ -329,7 +307,8 @@
                   12
                ]
             ],
-            "name" : "017"
+            "name" : "017",
+            "id" : "017"
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@@ -351,7 +330,6 @@
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-            "id" : "019",
             "data" : [
                [
                   "Perl",
@@ -365,11 +343,11 @@
                   "Blog",
                   13
                ]
-            ]
+            ],
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             "name" : "020",
-            "id" : "020",
             "data" : [
                [
                   "Perl",
@@ -383,10 +361,12 @@
                   "Blog",
                   13
                ]
-            ]
+            ],
+            "id" : "020"
          },
          {
             "id" : "021",
+            "name" : "021",
             "data" : [
                [
                   "Perl",
@@ -400,8 +380,7 @@
                   "Blog",
                   10
                ]
-            ],
-            "name" : "021"
+            ]
          },
          {
             "id" : "022",
@@ -422,8 +401,8 @@
             "name" : "022"
          },
          {
-            "name" : "023",
             "id" : "023",
+            "name" : "023",
             "data" : [
                [
                   "Perl",
@@ -440,7 +419,6 @@
             ]
          },
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-            "name" : "024",
             "data" : [
                [
                   "Perl",
@@ -455,10 +433,10 @@
                   11
                ]
             ],
+            "name" : "024",
             "id" : "024"
          },
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-            "name" : "025",
             "id" : "025",
             "data" : [
                [
@@ -473,11 +451,11 @@
                   "Blog",
                   12
                ]
-            ]
+            ],
+            "name" : "025"
          },
          {
             "name" : "026",
-            "id" : "026",
             "data" : [
                [
                   "Perl",
@@ -491,10 +469,10 @@
                   "Blog",
                   10
                ]
-            ]
+            ],
+            "id" : "026"
          },
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-            "id" : "027",
             "data" : [
                [
                   "Perl",
@@ -509,7 +487,8 @@
                   9
                ]
             ],
-            "name" : "027"
+            "name" : "027",
+            "id" : "027"
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          {
             "id" : "028",
@@ -530,7 +509,6 @@
             "name" : "028"
          },
          {
-            "name" : "029",
             "data" : [
                [
                   "Perl",
@@ -545,9 +523,11 @@
                   12
                ]
             ],
+            "name" : "029",
             "id" : "029"
          },
          {
+            "id" : "030",
             "name" : "030",
             "data" : [
                [
@@ -562,11 +542,9 @@
                   "Blog",
                   10
                ]
-            ],
-            "id" : "030"
+            ]
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-            "name" : "031",
             "id" : "031",
             "data" : [
                [
@@ -581,10 +559,11 @@
                   "Blog",
                   9
                ]
-            ]
+            ],
+            "name" : "031"
          },
          {
-            "id" : "032",
+            "name" : "032",
             "data" : [
                [
                   "Perl",
@@ -599,7 +578,7 @@
                   10
                ]
             ],
-            "name" : "032"
+            "id" : "032"
          },
          {
             "data" : [
@@ -616,11 +595,11 @@
                   10
                ]
             ],
-            "id" : "033",
-            "name" : "033"
+            "name" : "033",
+            "id" : "033"
          },
          {
-            "id" : "034",
+            "name" : "034",
             "data" : [
                [
                   "Perl",
@@ -635,9 +614,10 @@
                   11
                ]
             ],
-            "name" : "034"
+            "id" : "034"
          },
          {
+            "name" : "035",
             "data" : [
                [
                   "Perl",
@@ -652,12 +632,10 @@
                   9
                ]
             ],
-            "id" : "035",
-            "name" : "035"
+            "id" : "035"
          },
          {
             "name" : "036",
-            "id" : "036",
             "data" : [
                [
                   "Perl",
@@ -671,11 +649,11 @@
                   "Blog",
                   11
                ]
-            ]
+            ],
+            "id" : "036"
          },
          {
             "name" : "037",
-            "id" : "037",
             "data" : [
                [
                   "Perl",
@@ -689,7 +667,8 @@
                   "Blog",
                   9
                ]
-            ]
+            ],
+            "id" : "037"
          },
          {
             "id" : "038",
@@ -710,6 +689,8 @@
             "name" : "038"
          },
          {
+            "id" : "039",
+            "name" : "039",
             "data" : [
                [
                   "Perl",
@@ -723,11 +704,10 @@
                   "Blog",
                   12
                ]
-            ],
-            "id" : "039",
-            "name" : "039"
+            ]
          },
          {
+            "name" : "040",
             "data" : [
                [
                   "Perl",
@@ -742,12 +722,11 @@
                   10
                ]
             ],
-            "id" : "040",
-            "name" : "040"
+            "id" : "040"
          },
          {
-            "name" : "041",
             "id" : "041",
+            "name" : "041",
             "data" : [
                [
                   "Perl",
@@ -778,8 +757,8 @@
                   11
                ]
             ],
-            "id" : "042",
-            "name" : "042"
+            "name" : "042",
+            "id" : "042"
          },
          {
             "id" : "043",
@@ -814,12 +793,11 @@
                   11
                ]
             ],
-            "id" : "044",
-            "name" : "044"
+            "name" : "044",
+            "id" : "044"
          },
          {
             "name" : "045",
-            "id" : "045",
             "data" : [
                [
                   "Perl",
@@ -833,9 +811,11 @@
                   "Blog",
                   11
                ]
-            ]
+            ],
+            "id" : "045"
          },
          {
+            "name" : "046",
             "data" : [
                [
                   "Perl",
@@ -850,11 +830,9 @@
                   10
                ]
             ],
-            "id" : "046",
-            "name" : "046"
+            "id" : "046"
          },
          {
-            "id" : "047",
             "data" : [
                [
                   "Perl",
@@ -869,9 +847,12 @@
                   10
                ]
             ],
-            "name" : "047"
+            "name" : "047",
+            "id" : "047"
          },
          {
+            "id" : "048",
+            "name" : "048",
             "data" : [
                [
                   "Perl",
@@ -885,13 +866,10 @@
                   "Blog",
                   12
                ]
-            ],
-            "id" : "048",
-            "name" : "048"
+            ]
          },
          {