- Added solution by Ulrich Rieke.

12 files changed, 1255 insertions, 1217 deletions

diff --git a/challenge-070/ulrich-rieke/perl/ch-2.pl b/challenge-070/ulrich-rieke/perl/ch-2.pl
new file mode 100644
index 0000000000..07a8a46393
--- /dev/null
+++ b/challenge-070/ulrich-rieke/perl/ch-2.pl
@@ -0,0 +1,38 @@
+#!/usr/bin/perl ;
+use strict ;
+use warnings ;
+use feature 'say' ;
+
+#function to convert a binary string to a decimal number!
+#Of course, we have pack and unpack, but this seems less unwieldy...
+sub binToDecimal {
+  my $binary = shift ;
+  my $decimal = 0 ;
+  my $expo = 1 ;
+  my @reversed = reverse split (// , $binary) ;
+  for my $num ( @reversed ) {
+      $decimal += ( $expo * $num ) ;
+      $expo *= 2 ;
+  }
+  return $decimal ;
+}
+
+my $limit = $ARGV[ 0 ] ;
+my @current = ("0" , "1" ) ;
+my $n = 1 ;
+while ( $n < $limit ) {
+  for my $element ( reverse @current ) {
+      push( @current , $element ) ;
+  }
+  my $len = scalar @current ;
+  for my $i (0..$len / 2 - 1 ) {
+      $current[ $i ] = "0" . $current[ $i ] ;
+  }
+  for my $i ( $len / 2 .. $len - 1 ) {
+      $current[ $i ] = "1" . $current[ $i ] ;
+  }
+  $n++ ;
+}
+my @numbers = map { binToDecimal( $_ ) } @current ;
+say join (', ' , @numbers ) ;
+
diff --git a/stats/pwc-current.json b/stats/pwc-current.json
index 05dd19cbc1..dc4342b069 100644
--- a/stats/pwc-current.json
+++ b/stats/pwc-current.json
@@ -1,27 +1,18 @@
 {
-   "plotOptions" : {
-      "series" : {
-         "dataLabels" : {
-            "enabled" : 1,
-            "format" : "{point.y}"
-         },
-         "borderWidth" : 0
-      }
-   },
    "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/>",
-      "followPointer" : 1
+      "pointFormat" : "<span style='color:{point.color}'>{point.name}</span>: <b>{point.y:f}</b><br/>"
    },
    "subtitle" : {
-      "text" : "[Champions: 14] Last updated at 2020-07-23 15:39:38 GMT"
-   },
-   "xAxis" : {
-      "type" : "category"
+      "text" : "[Champions: 14] Last updated at 2020-07-23 16:41:46 GMT"
    },
    "title" : {
       "text" : "Perl Weekly Challenge - 070"
    },
+   "legend" : {
+      "enabled" : 0
+   },
    "yAxis" : {
       "title" : {
          "text" : "Total Solutions"
@@ -44,6 +35,7 @@
             "id" : "Andrew Shitov"
          },
          {
+            "name" : "Athanasius",
             "data" : [
                [
                   "Perl",
@@ -54,22 +46,19 @@
                   2
                ]
             ],
-            "id" : "Athanasius",
-            "name" : "Athanasius"
+            "id" : "Athanasius"
          },
          {
-            "name" : "Dave Jacoby",
+            "id" : "Dave Jacoby",
             "data" : [
                [
                   "Perl",
                   2
                ]
             ],
-            "id" : "Dave Jacoby"
+            "name" : "Dave Jacoby"
          },
          {
-            "name" : "Javier Luque",
-            "id" : "Javier Luque",
             "data" : [
                [
                   "Perl",
@@ -83,7 +72,9 @@
                   "Blog",
                   1
                ]
-            ]
+            ],
+            "name" : "Javier Luque",
+            "id" : "Javier Luque"
          },
          {
             "data" : [
@@ -92,12 +83,10 @@
                   2
                ]
             ],
-            "id" : "Jorg Sommrey",
-            "name" : "Jorg Sommrey"
+            "name" : "Jorg Sommrey",
+            "id" : "Jorg Sommrey"
          },
          {
-            "name" : "Luca Ferrari",
-            "id" : "Luca Ferrari",
             "data" : [
                [
                   "Raku",
@@ -107,10 +96,12 @@
                   "Blog",
                   2
                ]
-            ]
+            ],
+            "name" : "Luca Ferrari",
+            "id" : "Luca Ferrari"
          },
          {
-            "id" : "Mohammad S Anwar",
+            "name" : "Mohammad S Anwar",
             "data" : [
                [
                   "Perl",
@@ -121,21 +112,21 @@
                   2
                ]
             ],
-            "name" : "Mohammad S Anwar"
+            "id" : "Mohammad S Anwar"
          },
          {
-            "name" : "Pete Houston",
-            "id" : "Pete Houston",
             "data" : [
                [
                   "Perl",
                   2
                ]
-            ]
+            ],
+            "name" : "Pete Houston",
+            "id" : "Pete Houston"
          },
          {
-            "name" : "Roger Bell_West",
             "id" : "Roger Bell_West",
+            "name" : "Roger Bell_West",
             "data" : [
                [
                   "Perl",
@@ -152,7 +143,7 @@
             ]
          },
          {
-            "id" : "Simon Green",
+            "name" : "Simon Green",
             "data" : [
                [
                   "Perl",
@@ -163,35 +154,35 @@
                   1
                ]
             ],
-            "name" : "Simon Green"
+            "id" : "Simon Green"
          },
          {
+            "id" : "Simon Proctor",
+            "name" : "Simon Proctor",
             "data" : [
                [
                   "Raku",
                   2
                ]
-            ],
-            "id" : "Simon Proctor",
-            "name" : "Simon Proctor"
+            ]
          },
          {
+            "id" : "Ulrich Rieke",
+            "name" : "Ulrich Rieke",
             "data" : [
                [
                   "Perl",
-                  1
+                  2
                ],
                [
                   "Raku",
                   2
                ]
-            ],
-            "id" : "Ulrich Rieke",
-            "name" : "Ulrich Rieke"
+            ]
          },
          {
-            "name" : "Walt Mankowski",
             "id" : "Walt Mankowski",
+            "name" : "Walt Mankowski",
             "data" : [
                [
                   "Perl",
@@ -200,25 +191,24 @@
             ]
          },
          {
-            "name" : "Wanderdoc",
+            "id" : "Wanderdoc",
             "data" : [
                [
                   "Perl",
                   2
                ]
             ],
-            "id" : "Wanderdoc"
+            "name" : "Wanderdoc"
          }
       ]
    },
-   "legend" : {
-      "enabled" : 0
-   },
-   "chart" : {
-      "type" : "column"
+   "xAxis" : {
+      "type" : "category"
    },
    "series" : [
       {
+         "colorByPoint" : 1,
+         "name" : "Perl Weekly Challenge - 070",
          "data" : [
             {
                "drilldown" : "Andrew Shitov",
@@ -226,9 +216,9 @@
                "name" : "Andrew Shitov"
             },
             {
-               "drilldown" : "Athanasius",
                "name" : "Athanasius",
-               "y" : 4
+               "y" : 4,
+               "drilldown" : "Athanasius"
             },
             {
                "drilldown" : "Dave Jacoby",
@@ -236,48 +226,48 @@
                "name" : "Dave Jacoby"
             },
             {
-               "drilldown" : "Javier Luque",
+               "name" : "Javier Luque",
                "y" : 5,
-               "name" : "Javier Luque"
+               "drilldown" : "Javier Luque"
             },
             {
                "name" : "Jorg Sommrey",
-               "y" : 2,
-               "drilldown" : "Jorg Sommrey"
+               "drilldown" : "Jorg Sommrey",
+               "y" : 2
             },
             {
                "y" : 4,
-               "name" : "Luca Ferrari",
-               "drilldown" : "Luca Ferrari"
+               "drilldown" : "Luca Ferrari",
+               "name" : "Luca Ferrari"
             },
             {
-               "name" : "Mohammad S Anwar",
+               "drilldown" : "Mohammad S Anwar",
                "y" : 4,
-               "drilldown" : "Mohammad S Anwar"
+               "name" : "Mohammad S Anwar"
             },
             {
                "y" : 2,
-               "name" : "Pete Houston",
-               "drilldown" : "Pete Houston"
+               "drilldown" : "Pete Houston",
+               "name" : "Pete Houston"
             },
             {
                "name" : "Roger Bell_West",
-               "y" : 5,
-               "drilldown" : "Roger Bell_West"
+               "drilldown" : "Roger Bell_West",
+               "y" : 5
             },
             {
-               "name" : "Simon Green",
                "y" : 3,
-               "drilldown" : "Simon Green"
+               "drilldown" : "Simon Green",
+               "name" : "Simon Green"
             },
             {
                "drilldown" : "Simon Proctor",
-               "name" : "Simon Proctor",
-               "y" : 2
+               "y" : 2,
+               "name" : "Simon Proctor"
             },
             {
                "name" : "Ulrich Rieke",
-               "y" : 3,
+               "y" : 4,
                "drilldown" : "Ulrich Rieke"
             },
             {
@@ -286,13 +276,23 @@
                "name" : "Walt Mankowski"
             },
             {
-               "drilldown" : "Wanderdoc",
+               "name" : "Wanderdoc",
                "y" : 2,
-               "name" : "Wanderdoc"
+               "drilldown" : "Wanderdoc"
             }
-         ],
-         "name" : "Perl Weekly Challenge - 070",
-         "colorByPoint" : 1
+         ]
+      }
+   ],
+   "chart" : {
+      "type" : "column"
+   },
+   "plotOptions" : {
+      "series" : {
+         "borderWidth" : 0,
+         "dataLabels" : {
+            "format" : "{point.y}",
+            "enabled" : 1
+         }
       }
-   ]
+   }
 }
diff --git a/stats/pwc-language-breakdown-summary.json b/stats/pwc-language-breakdown-summary.json
index 13e9cab287..59fd018a6d 100644
--- a/stats/pwc-language-breakdown-summary.json
+++ b/stats/pwc-language-breakdown-summary.json
@@ -1,33 +1,28 @@
 {
-   "subtitle" : {
-      "text" : "Last updated at 2020-07-23 15:39:38 GMT"
-   },
-   "tooltip" : {
-      "pointFormat" : "<b>{point.y:.0f}</b>"
-   },
    "xAxis" : {
       "type" : "category",
       "labels" : {
          "style" : {
-            "fontFamily" : "Verdana, sans-serif",
-            "fontSize" : "13px"
+            "fontSize" : "13px",
+            "fontFamily" : "Verdana, sans-serif"
          }
       }
    },
-   "yAxis" : {
-      "title" : {
-         "text" : null
-      },
-      "min" : 0
-   },
-   "legend" : {
-      "enabled" : "false"
-   },
-   "title" : {
-      "text" : "Perl Weekly Challenge Contributions [2019 - 2020]"
-   },
    "series" : [
       {
+         "dataLabels" : {
+            "color" : "#FFFFFF",
+            "style" : {
+               "fontFamily" : "Verdana, sans-serif",
+               "fontSize" : "13px"
+            },
+            "rotation" : -90,
+            "align" : "right",
+            "enabled" : "true",
+            "format" : "{point.y:.0f}",
+            "y" : 10
+         },
+         "name" : "Contributions",
          "data" : [
             [
                "Blog",
@@ -35,29 +30,34 @@
             ],
             [
                "Perl",
-               2880
+               2881
             ],
             [
                "Raku",
                1850
             ]
-         ],
-         "dataLabels" : {
-            "y" : 10,
-            "style" : {
-               "fontSize" : "13px",
-               "fontFamily" : "Verdana, sans-serif"
-            },
-            "align" : "right",
-            "color" : "#FFFFFF",
-            "enabled" : "true",
-            "rotation" : -90,
-            "format" : "{point.y:.0f}"
-         },
-         "name" : "Contributions"
+         ]
       }
    ],
    "chart" : {
       "type" : "column"
+   },
+   "legend" : {
+      "enabled" : "false"
+   },
+   "subtitle" : {
+      "text" : "Last updated at 2020-07-23 16:41:46 GMT"
+   },
+   "title" : {
+      "text" : "Perl Weekly Challenge Contributions [2019 - 2020]"
+   },
+   "tooltip" : {
+      "pointFormat" : "<b>{point.y:.0f}</b>"
+   },
+   "yAxis" : {
+      "min" : 0,
+      "title" : {
+         "text" : null
+      }
    }
 }
diff --git a/stats/pwc-language-breakdown.json b/stats/pwc-language-breakdown.json
index c8de9c7b80..8d47664506 100644
--- a/stats/pwc-language-breakdown.json
+++ b/stats/pwc-language-breakdown.json
@@ -1,391 +1,31 @@
 {
-   "xAxis" : {
-      "type" : "category"
+   "subtitle" : {
+      "text" : "Click the columns to drilldown the language breakdown. Last updated at 2020-07-23 16:41:46 GMT"
    },
-   "plotOptions" : {
-      "series" : {
-         "dataLabels" : {
-            "enabled" : 1,
-            "format" : "{point.y}"
-         },
-         "borderWidth" : 0
-      }
+   "legend" : {
+      "enabled" : "false"
+   },
+   "title" : {
+      "text" : "Perl Weekly Challenge Language"
    },
    "tooltip" : {
-      "pointFormat" : "<span style=\"color:{point.color}\">Challenge {point.name}</span>: <b>{point.y:f}</b><br/>",
       "followPointer" : "true",
-      "headerFormat" : "<span style=\"font-size:11px\"></span>"
-   },
-   "subtitle" : {
-      "text" : "Click the columns to drilldown the language breakdown. Last updated at 2020-07-23 15:39:38 GMT"
+      "headerFormat" : "<span style=\"font-size:11px\"></span>",
+      "pointFormat" : "<span style=\"color:{point.color}\">Challenge {point.name}</span>: <b>{point.y:f}</b><br/>"
    },
-   "chart" : {
-      "type" : "column"
-   },
-   "series" : [
-      {
-         "data" : [
-            {
-               "y" : 142,
-               "name" : "#001",
-               "drilldown" : "001"
-            },
-            {
-               "name" : "#002",
-               "y" : 109,
-               "drilldown" : "002"
-            },
-            {
-               "drilldown" : "003",
-               "name" : "#003",
-               "y" : 71
-            },
-            {
-               "name" : "#004",
-               "y" : 91,
-               "drilldown" : "004"
-            },
-            {
-               "name" : "#005",
-               "y" : 72,
-               "drilldown" : "005"
-            },
-            {
-               "drilldown" : "006",
-               "name" : "#006",
-               "y" : 52
-            },
-            {
-               "name" : "#007",
-               "y" : 59,
-               "drilldown" : "007"
-            },
-            {
-               "drilldown" : "008",
-               "name" : "#008",
-               "y" : 72
-            },
-            {
-               "name" : "#009",
-               "y" : 68,
-               "drilldown" : "009"
-            },
-            {
-               "drilldown" : "010",
-               "name" : "#010",
-               "y" : 60
-            },
-            {
-               "y" : 79,
-               "name" : "#011",
-               "drilldown" : "011"
-            },
-            {
-               "y" : 83,
-               "name" : "#012",
-               "drilldown" : "012"
-            },
-            {
-               "name" : "#013",
-               "y" : 76,
-               "drilldown" : "013"
-            },
-            {
-               "drilldown" : "014",
-               "name" : "#014",
-               "y" : 96
-            },
-            {
-               "drilldown" : "015",
-               "y" : 93,
-               "name" : "#015"
-            },
-            {
-               "name" : "#016",
-               "y" : 66,
-               "drilldown" : "016"
-            },
-            {
-               "drilldown" : "017",
-               "name" : "#017",
-               "y" : 79
-            },
-            {
-               "drilldown" : "018",
-               "y" : 76,
-               "name" : "#018"
-            },
-            {
-               "drilldown" : "019",
-               "y" : 97,
-               "name" : "#019"
-            },
-            {
-               "name" : "#020",
-               "y" : 95,
-               "drilldown" : "020"
-            },
-            {
-               "name" : "#021",
-               "y" : 67,
-               "drilldown" : "021"
-            },
-            {
-               "y" : 63,
-               "name" : "#022",
-               "drilldown" : "022"
-            },
-            {
-               "name" : "#023",
-               "y" : 91,
-               "drilldown" : "023"
-            },
-            {
-               "name" : "#024",
-               "y" : 70,
-               "drilldown" : "024"
-            },
-            {
-               "drilldown" : "025",
-               "y" : 55,
-               "name" : "#025"
-            },
-            {
-               "name" : "#026",
-               "y" : 70,
-               "drilldown" : "026"
-            },
-            {
-               "drilldown" : "027",
-               "y" : 58,
-               "name" : "#027"
-            },
-            {
-               "name" : "#028",
-               "y" : 78,
-               "drilldown" : "028"
-            },
-            {
-               "drilldown" : "029",
-               "name" : "#029",
-               "y" : 77
-            },
-            {
-               "y" : 115,
-               "name" : "#030",
-               "drilldown" : "030"
-            },
-            {
-               "name" : "#031",
-               "y" : 87,
-               "drilldown" : "031"
-            },
-            {
-               "drilldown" : "032",
-               "y" : 92,
-               "name" : "#032"
-            },
-            {
-               "name" : "#033",
-               "y" : 108,
-               "drilldown" : "033"
-            },
-            {
-               "drilldown" : "034",
-               "y" : 62,
-               "name" : "#034"
-            },
-            {
-               "name" : "#035",
-               "y" : 62,
-               "drilldown" : "035"
-            },
-            {
-               "y" : 66,
-               "name" : "#036",
-               "drilldown" : "036"
-            },
-            {
-               "name" : "#037",
-               "y" : 65,
-               "drilldown" : "037"
-            },
-            {
-               "name" : "#038",
-               "y" : 65,
-               "drilldown" : "038"
-            },
-            {
-               "drilldown" : "039",
-               "y" : 60,
-               "name" : "#039"
-            },
-            {
-               "y" : 71,
-               "name" : "#040",
-               "drilldown" : "040"
-            },
-            {
-               "drilldown" : "041",
-               "y" : 74,
-               "name" : "#041"
-            },
-            {
-               "y" : 88,
-               "name" : "#042",
-               "drilldown" : "042"
-            },
-            {
-               "drilldown" : "043",
-               "y" : 66,
-               "name" : "#043"
-            },
-            {
-               "drilldown" : "044",
-               "name" : "#044",
-               "y" : 82
-            },
-            {
-               "drilldown" : "045",
-               "y" : 94,
-               "name" : "#045"
-            },
-            {
-               "drilldown" : "046",
-               "name" : "#046",
-               "y" : 85
-            },
-            {
-               "drilldown" : "047",
-               "y" : 82,
-               "name" : "#047"
-            },
-            {
-               "drilldown" : "048",
-               "name" : "#048",
-               "y" : 106
-            },
-            {
-               "name" : "#049",
-               "y" : 85,
-               "drilldown" : "049"
-            },
-            {
-               "name" : "#050",
-               "y" : 96,
-               "drilldown" : "050"
-            },
-            {
-               "drilldown" : "051",
-               "name" : "#051",
-               "y" : 87
-            },
-            {
-               "y" : 89,
-               "name" : "#052",
-               "drilldown" : "052"
-            },
-            {
-               "drilldown" : "053",
-               "name" : "#053",
-               "y" : 99
-            },
-            {
-               "drilldown" : "054",
-               "name" : "#054",
-               "y" : 101
-            },
-            {
-               "drilldown" : "055",
-               "y" : 86,
-               "name" : "#055"
-            },
-            {
-               "y" : 93,
-               "name" : "#056",
-               "drilldown" : "056"
-            },
-            {
-               "drilldown" : "057",
-               "y" : 78,
-               "name" : "#057"
-            },
-            {
-               "name" : "#058",
-               "y" : 62,
-               "drilldown" : "058"
-            },
-            {
-               "name" : "#059",
-               "y" : 82,
-               "drilldown" : "059"
-            },
-            {
-               "drilldown" : "060",
-               "name" : "#060",
-               "y" : 78
-            },
-            {
-               "drilldown" : "061",
-               "y" : 79,
-               "name" : "#061"
-            },
-            {
-               "drilldown" : "062",
-               "y" : 54,
-               "name" : "#062"
-            },
-            {
-               "drilldown" : "063",
-               "y" : 87,
-               "name" : "#063"
-            },
-            {
-               "y" : 76,
-               "name" : "#064",
-               "drilldown" : "064"
-            },
-            {
-               "name" : "#065",
-               "y" : 71,
-               "drilldown" : "065"
-            },
-            {
-               "drilldown" : "066",
-               "y" : 81,
-               "name" : "#066"
-            },
-            {
-               "drilldown" : "067",
-               "name" : "#067",
-               "y" : 87
-            },
-            {
-               "drilldown" : "068",
-               "y" : 68,
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-         "name" : "Perl Weekly Challenge Languages",
-         "colorByPoint" : "true"
+   "yAxis" : {
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-   ],
-   "title" : {
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+   "xAxis" : {
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    "drilldown" : {
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+            "name" : "001",
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@@ -399,12 +39,9 @@
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                ]
-            ],
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-            "name" : "001"
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@@ -419,7 +56,8 @@
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@@ -436,10 +74,11 @@
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@@ -454,8 +93,7 @@
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@@ -472,10 +110,11 @@
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@@ -490,11 +129,10 @@
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@@ -509,10 +147,10 @@
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@@ -527,7 +165,7 @@
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@@ -548,6 +186,7 @@
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@@ -585,6 +223,7 @@
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@@ -598,12 +237,11 @@
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@@ -620,7 +258,6 @@
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@@ -635,10 +272,11 @@
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@@ -653,9 +291,10 @@
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@@ -670,8 +309,7 @@
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@@ -710,6 +348,7 @@
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@@ -724,11 +363,9 @@
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@@ -743,10 +380,10 @@
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@@ -761,9 +398,11 @@
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@@ -778,12 +417,11 @@
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