- Added solutions by Laurent Rosenfeld.

20 files changed, 1506 insertions, 1406 deletions

diff --git a/challenge-191/laurent-rosenfeld/blog.txt b/challenge-191/laurent-rosenfeld/blog.txt
new file mode 100644
index 0000000000..df50399e52
--- /dev/null
+++ b/challenge-191/laurent-rosenfeld/blog.txt
@@ -0,0 +1 @@
+http://blogs.perl.org/users/laurent_r/2022/11/perl-weekly-challenge-191-twice-largest-and-cute-list.html
diff --git a/challenge-191/laurent-rosenfeld/perl/ch-1.pl b/challenge-191/laurent-rosenfeld/perl/ch-1.pl
new file mode 100644
index 0000000000..a729e70a6b
--- /dev/null
+++ b/challenge-191/laurent-rosenfeld/perl/ch-1.pl
@@ -0,0 +1,12 @@
+use strict;
+use warnings;
+use feature qw/say/;
+
+sub is_twice_as_large {
+    my @sorted = sort { $b <=> $a } @_;
+    return $sorted[0] >= 2 * $sorted[1];
+}
+for my $test ( [<1 2 3 4>], [<1 2 0 5>],
+               [<2 6 3 1>], [<4 5 2 3>] ) {
+    say "@$test -> ", is_twice_as_large(@$test) ? 1 : -1;
+}
diff --git a/challenge-191/laurent-rosenfeld/perl/ch-2.pl b/challenge-191/laurent-rosenfeld/perl/ch-2.pl
new file mode 100644
index 0000000000..1d9b833b9c
--- /dev/null
+++ b/challenge-191/laurent-rosenfeld/perl/ch-2.pl
@@ -0,0 +1,38 @@
+use strict;
+use warnings;
+use feature qw/say/;
+
+my @permutations;
+
+sub is_cute {
+    my @new = (0, @_);
+    for my $i (1.. scalar @_) {
+        return 0 if $i % $new[$i] and $new[$i] % $i;
+    }
+    return 1;
+}
+
+sub permute {
+    my ($done, $left) = @_;
+    if (scalar @$left == 0) {
+        push @permutations, $done;
+        return;
+    }
+    my @left = @$left;
+    permute([ @$done, $left[$_]], [@left[0..$_-1], @left[$_+1..$#left]]) for 0..$#left;
+}
+
+sub count_cute {
+    my $k = shift;
+    my $count = 0;
+    @permutations = ();
+    permute([], [1..$k]);
+    for my $perm (@permutations) {
+        $count++ if is_cute @$perm;
+    }
+    return $count;
+}
+
+for my $j (1..10) {
+    say "$j -> ", count_cute $j;
+}
diff --git a/challenge-191/laurent-rosenfeld/raku/ch-1.raku b/challenge-191/laurent-rosenfeld/raku/ch-1.raku
new file mode 100644
index 0000000000..fb321abc5a
--- /dev/null
+++ b/challenge-191/laurent-rosenfeld/raku/ch-1.raku
@@ -0,0 +1,7 @@
+sub is-twice-as-large (@input) {
+    my @sorted = reverse sort @input;
+    return @sorted[0] >= 2 * @sorted[1];
+}
+for <1 2 3 4>, <1 2 0 5>, <2 6 3 1>, <4 5 2 3> -> @test {
+    say @test, " -> ", is-twice-as-large(@test) ?? 1 !! -1;
+}
diff --git a/challenge-191/laurent-rosenfeld/raku/ch-2.raku b/challenge-191/laurent-rosenfeld/raku/ch-2.raku
new file mode 100644
index 0000000000..2431e4a0e6
--- /dev/null
+++ b/challenge-191/laurent-rosenfeld/raku/ch-2.raku
@@ -0,0 +1,19 @@
+sub is-cute (@list) {
+    my @new = (0, @list).flat;
+    for 1..@list.elems -> $i {
+        return False unless $i %% @new[$i] or @new[$i] %% $i;
+    }
+    return True;
+}
+
+sub count-cute ($k) {
+    my $count = 0;
+    for (1..$k).permutations -> @perm {
+        $count++ if is-cute @perm;
+    }
+    return $count;
+}
+
+for 1..10 -> $j {
+    say "$j -> ", count-cute $j;
+}
diff --git a/stats/pwc-current.json b/stats/pwc-current.json
index 8a0d84c48d..26d27631b7 100644
--- a/stats/pwc-current.json
+++ b/stats/pwc-current.json
@@ -2,44 +2,132 @@
    "xAxis" : {
       "type" : "category"
    },
-   "legend" : {
-      "enabled" : 0
+   "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/>"
+   },
+   "title" : {
+      "text" : "The Weekly Challenge - 191"
    },
    "subtitle" : {
-      "text" : "[Champions: 11] Last updated at 2022-11-15 08:17:53 GMT"
+      "text" : "[Champions: 12] Last updated at 2022-11-15 19:18:32 GMT"
    },
-   "yAxis" : {
-      "title" : {
-         "text" : "Total Solutions"
+   "series" : [
+      {
+         "data" : [
+            {
+               "y" : 2,
+               "drilldown" : "Feng Chang",
+               "name" : "Feng Chang"
+            },
+            {
+               "drilldown" : "Humberto Massa",
+               "name" : "Humberto Massa",
+               "y" : 2
+            },
+            {
+               "y" : 5,
+               "name" : "Laurent Rosenfeld",
+               "drilldown" : "Laurent Rosenfeld"
+            },
+            {
+               "name" : "Luca Ferrari",
+               "drilldown" : "Luca Ferrari",
+               "y" : 8
+            },
+            {
+               "y" : 2,
+               "name" : "Niels van Dijke",
+               "drilldown" : "Niels van Dijke"
+            },
+            {
+               "drilldown" : "Peter Campbell Smith",
+               "name" : "Peter Campbell Smith",
+               "y" : 3
+            },
+            {
+               "name" : "Robert DiCicco",
+               "drilldown" : "Robert DiCicco",
+               "y" : 2
+            },
+            {
+               "y" : 4,
+               "name" : "Roger Bell_West",
+               "drilldown" : "Roger Bell_West"
+            },
+            {
+               "name" : "Simon Proctor",
+               "drilldown" : "Simon Proctor",
+               "y" : 2
+            },
+            {
+               "y" : 2,
+               "name" : "Tim Potapov",
+               "drilldown" : "Tim Potapov"
+            },
+            {
+               "y" : 4,
+               "name" : "Ulrich Rieke",
+               "drilldown" : "Ulrich Rieke"
+            },
+            {
+               "drilldown" : "W. Luis Mochan",
+               "name" : "W. Luis Mochan",
+               "y" : 3
+            }
+         ],
+         "name" : "The Weekly Challenge - 191",
+         "colorByPoint" : 1
       }
+   ],
+   "chart" : {
+      "type" : "column"
    },
-   "title" : {
-      "text" : "The Weekly Challenge - 191"
+   "legend" : {
+      "enabled" : 0
    },
    "drilldown" : {
       "series" : [
          {
             "name" : "Feng Chang",
-            "id" : "Feng Chang",
             "data" : [
                [
                   "Raku",
                   2
                ]
-            ]
+            ],
+            "id" : "Feng Chang"
          },
          {
-            "id" : "Humberto Massa",
+            "name" : "Humberto Massa",
             "data" : [
                [
                   "Raku",
                   2
                ]
             ],
-            "name" : "Humberto Massa"
+            "id" : "Humberto Massa"
+         },
+         {
+            "id" : "Laurent Rosenfeld",
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ],
+               [
+                  "Raku",
+                  2
+               ],
+               [
+                  "Blog",
+                  1
+               ]
+            ],
+            "name" : "Laurent Rosenfeld"
          },
          {
-            "name" : "Luca Ferrari",
             "id" : "Luca Ferrari",
             "data" : [
                [
@@ -50,7 +138,8 @@
                   "Blog",
                   6
                ]
-            ]
+            ],
+            "name" : "Luca Ferrari"
          },
          {
             "data" : [
@@ -59,11 +148,12 @@
                   2
                ]
             ],
-            "id" : "Niels van Dijke",
-            "name" : "Niels van Dijke"
+            "name" : "Niels van Dijke",
+            "id" : "Niels van Dijke"
          },
          {
             "id" : "Peter Campbell Smith",
+            "name" : "Peter Campbell Smith",
             "data" : [
                [
                   "Perl",
@@ -73,10 +163,10 @@
                   "Blog",
                   1
                ]
-            ],
-            "name" : "Peter Campbell Smith"
+            ]
          },
          {
+            "id" : "Robert DiCicco",
             "name" : "Robert DiCicco",
             "data" : [
                [
@@ -87,11 +177,9 @@
                   "Raku",
                   1
                ]
-            ],
-            "id" : "Robert DiCicco"
+            ]
          },
          {
-            "name" : "Roger Bell_West",
             "data" : [
                [
                   "Perl",
@@ -102,29 +190,32 @@
                   2
                ]
             ],
+            "name" : "Roger Bell_West",
             "id" : "Roger Bell_West"
          },
          {
-            "id" : "Simon Proctor",
+            "name" : "Simon Proctor",
             "data" : [
                [
                   "Raku",
                   2
                ]
             ],
-            "name" : "Simon Proctor"
+            "id" : "Simon Proctor"
          },
          {
+            "id" : "Tim Potapov",
             "name" : "Tim Potapov",
             "data" : [
                [
                   "Perl",
                   2
                ]
-            ],
-            "id" : "Tim Potapov"
+            ]
          },
          {
+            "id" : "Ulrich Rieke",
+            "name" : "Ulrich Rieke",
             "data" : [
                [
                   "Perl",
@@ -134,12 +225,9 @@
                   "Raku",
                   2
                ]
-            ],
-            "id" : "Ulrich Rieke",
-            "name" : "Ulrich Rieke"
+            ]
          },
          {
-            "id" : "W. Luis Mochan",
             "data" : [
                [
                   "Perl",
@@ -150,88 +238,23 @@
                   1
                ]
             ],
-            "name" : "W. Luis Mochan"
+            "name" : "W. Luis Mochan",
+            "id" : "W. Luis Mochan"
          }
       ]
    },
-   "chart" : {
-      "type" : "column"
-   },
-   "series" : [
-      {
-         "colorByPoint" : 1,
-         "data" : [
-            {
-               "drilldown" : "Feng Chang",
-               "y" : 2,
-               "name" : "Feng Chang"
-            },
-            {
-               "drilldown" : "Humberto Massa",
-               "y" : 2,
-               "name" : "Humberto Massa"
-            },
-            {
-               "drilldown" : "Luca Ferrari",
-               "name" : "Luca Ferrari",
-               "y" : 8
-            },
-            {
-               "drilldown" : "Niels van Dijke",
-               "y" : 2,
-               "name" : "Niels van Dijke"
-            },
-            {
-               "name" : "Peter Campbell Smith",
-               "y" : 3,
-               "drilldown" : "Peter Campbell Smith"
-            },
-            {
-               "drilldown" : "Robert DiCicco",
-               "y" : 2,
-               "name" : "Robert DiCicco"
-            },
-            {
-               "drilldown" : "Roger Bell_West",
-               "y" : 4,
-               "name" : "Roger Bell_West"
-            },
-            {
-               "drilldown" : "Simon Proctor",
-               "name" : "Simon Proctor",
-               "y" : 2
-            },
-            {
-               "name" : "Tim Potapov",
-               "y" : 2,
-               "drilldown" : "Tim Potapov"
-            },
-            {
-               "drilldown" : "Ulrich Rieke",
-               "name" : "Ulrich Rieke",
-               "y" : 4
-            },
-            {
-               "y" : 3,
-               "name" : "W. Luis Mochan",
-               "drilldown" : "W. Luis Mochan"
-            }
-         ],
-         "name" : "The Weekly Challenge - 191"
+   "yAxis" : {
+      "title" : {
+         "text" : "Total Solutions"
       }
-   ],
-   "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/>"
    },
    "plotOptions" : {
       "series" : {
-         "borderWidth" : 0,
          "dataLabels" : {
             "enabled" : 1,
             "format" : "{point.y}"
-         }
+         },
+         "borderWidth" : 0
       }
    }
 }
diff --git a/stats/pwc-language-breakdown-summary.json b/stats/pwc-language-breakdown-summary.json
index 710eceae5f..45de0ac0bc 100644
--- a/stats/pwc-language-breakdown-summary.json
+++ b/stats/pwc-language-breakdown-summary.json
@@ -1,63 +1,63 @@
 {
-   "title" : {
-      "text" : "The Weekly Challenge Contributions [2019 - 2022]"
-   },
-   "yAxis" : {
-      "min" : 0,
-      "title" : {
-         "text" : null
-      }
-   },
-   "subtitle" : {
-      "text" : "Last updated at 2022-11-15 08:17:53 GMT"
-   },
-   "legend" : {
-      "enabled" : "false"
-   },
-   "xAxis" : {
-      "labels" : {
-         "style" : {
-            "fontFamily" : "Verdana, sans-serif",
-            "fontSize" : "13px"
-         }
-      },
-      "type" : "category"
-   },
-   "tooltip" : {
-      "pointFormat" : "<b>{point.y:.0f}</b>"
-   },
-   "chart" : {
-      "type" : "column"
-   },
    "series" : [
       {
+         "name" : "Contributions",
          "data" : [
             [
                "Blog",
-               3022
+               3023
             ],
             [
                "Perl",
-               9324
+               9326
             ],
             [
                "Raku",
-               5599
+               5601
             ]
          ],
          "dataLabels" : {
-            "style" : {
-               "fontFamily" : "Verdana, sans-serif",
-               "fontSize" : "13px"
-            },
-            "enabled" : "true",
-            "align" : "right",
             "y" : 10,
+            "format" : "{point.y:.0f}",
+            "enabled" : "true",
             "color" : "#FFFFFF",
             "rotation" : -90,
-            "format" : "{point.y:.0f}"
-         },
-         "name" : "Contributions"
+            "align" : "right",
+            "style" : {
+               "fontSize" : "13px",
+               "fontFamily" : "Verdana, sans-serif"
+            }
+         }
+      }
+   ],
+   "subtitle" : {
+      "text" : "Last updated at 2022-11-15 19:18:32 GMT"
+   },
+   "legend" : {
+      "enabled" : "false"
+   },
+   "chart" : {
+      "type" : "column"
+   },
+   "xAxis" : {
+      "type" : "category",
+      "labels" : {
+         "style" : {
+            "fontSize" : "13px",
+            "fontFamily" : "Verdana, sans-serif"
+         }
       }
-   ]
+   },
+   "tooltip" : {
+      "pointFormat" : "<b>{point.y:.0f}</b>"
+   },
+   "title" : {
+      "text" : "The Weekly Challenge Contributions [2019 - 2022]"
+   },
+   "yAxis" : {
+      "title" : {
+         "text" : null
+      },
+      "min" : 0
+   }
 }
diff --git a/stats/pwc-language-breakdown.json b/stats/pwc-language-breakdown.json
index 1c5ec2b41d..61bb270e92 100644
--- a/stats/pwc-language-breakdown.json
+++ b/stats/pwc-language-breakdown.json
@@ -1,25 +1,16 @@
 {
-   "xAxis" : {
-      "type" : "category"
-   },
-   "legend" : {
-      "enabled" : "false"
-   },
-   "subtitle" : {
-      "text" : "Click the columns to drilldown the language breakdown. Last updated at 2022-11-15 08:17:53 GMT"
-   },
-   "yAxis" : {
-      "title" : {
-         "text" : "Total Solutions"
+   "plotOptions" : {
+      "series" : {
+         "dataLabels" : {
+            "format" : "{point.y}",
+            "enabled" : 1
+         },
+         "borderWidth" : 0
       }
    },
-   "title" : {
-      "text" : "The Weekly Challenge Language"
-   },
    "drilldown" : {
       "series" : [
          {
-            "name" : "001",
             "id" : "001",
             "data" : [
                [
@@ -34,10 +25,10 @@
                   "Blog",
                   11
                ]
-            ]
+            ],
+            "name" : "001"
          },
          {
-            "name" : "002",
             "id" : "002",
             "data" : [
                [
@@ -52,10 +43,10 @@
                   "Blog",
                   10
                ]
-            ]
+            ],
+            "name" : "002"
          },
          {
-            "name" : "003",
             "id" : "003",
             "data" : [
                [
@@ -70,9 +61,11 @@
                   "Blog",
                   9
                ]
-            ]
+            ],
+            "name" : "003"
          },
          {
+            "id" : "004",
             "data" : [
                [
                   "Perl",
@@ -87,10 +80,10 @@
                   10
                ]
             ],
-            "id" : "004",
             "name" : "004"
          },
          {
+            "id" : "005",
             "name" : "005",
             "data" : [
                [
@@ -105,10 +98,11 @@
                   "Blog",
                   12
                ]
-            ],
-            "id" : "005"
+            ]
          },
          {
+            "id" : "006",
+            "name" : "006",
             "data" : [
                [
                   "Perl",
@@ -122,11 +116,10 @@
                   "Blog",
                   7
                ]
-            ],
-            "id" : "006",
-            "name" : "006"
+            ]
          },
          {
+            "id" : "007",
             "name" : "007",
             "data" : [
                [
@@ -141,11 +134,11 @@
                   "Blog",
                   10
                ]
-            ],
-            "id" : "007"
+            ]
          },
          {
             "id" : "008",
+            "name" : "008",
             "data" : [
                [
                   "Perl",
@@ -159,11 +152,10 @@
                   "Blog",
                   12
                ]
-            ],
-            "name" : "008"
+            ]
          },
          {
-            "name" : "009",
+            "id" : "009",
             "data" : [
                [
                   "Perl",
@@ -178,10 +170,9 @@
                   13
                ]
             ],
-            "id" : "009"
+            "name" : "009"
          },
          {
-            "id" : "010",
             "data" : [
                [
                   "Perl",
@@ -196,10 +187,10 @@
                   11
                ]
             ],
-            "name" : "010"
+            "name" : "010",
+            "id" : "010"
          },
          {
-            "name" : "011",
             "id" : "011",
             "data" : [
                [
@@ -214,11 +205,12 @@
                   "Blog",
                   10
                ]
-            ]
+            ],
+            "name" : "011"
          },
          {
-            "name" : "012",
             "id" : "012",
+            "name" : "012",
             "data" : [
                [
                   "Perl",
@@ -235,7 +227,6 @@
             ]
          },
          {
-            "id" : "013",
             "data" : [
                [
                   "Perl",
@@ -250,9 +241,12 @@
                   13
                ]
             ],
-            "name" : "013"
+            "name" : "013",
+            "id" : "013"
          },
          {
+            "id" : "014",
+            "name" : "014",
             "data" : [
                [
                   "Perl",
@@ -266,12 +260,9 @@
                   "Blog",
                   15
                ]
-            ],
-            "id" : "014",
-            "name" : "014"
+            ]
          },
          {
-            "name" : "015",
             "id" : "015",
             "data" : [
                [
@@ -286,10 +277,12 @@
                   "Blog",
                   15
                ]
-            ]
+            ],
+            "name" : "015"
          },
          {
             "id" : "016",
+            "name" : "016",
             "data" : [
                [
                   "Perl",
@@ -303,10 +296,10 @@
                   "Blog",
                   12
                ]
-            ],
-            "name" : "016"
+            ]
          },
          {
+            "id" : "017",
             "data" : [
                [
                   "Perl",
@@ -321,12 +314,9 @@
                   12
                ]
             ],
-            "id" : "017",
             "name" : "017"
          },
          {
-            "name" : "018",
-            "id" : "018",
             "data" : [
                [
                   "Perl",
@@ -340,11 +330,13 @@
                   "Blog",
                   14
                ]
-            ]
+            ],
+            "name" : "018",
+            "id" : "018"
          },
          {
-            "name" : "019",
             "id" : "019",
+            "name" : "019",
             "data" : [
                [
                   "Perl",
@@ -361,6 +353,7 @@
             ]
          },
          {
+            "id" : "020",
             "data" : [
                [
                   "Perl",
@@ -375,11 +368,9 @@
                   13
                ]
             ],
-            "id" : "020",
             "name" : "020"
          },
          {
-            "name" : "021",
             "data" : [
                [
                   "Perl",
@@ -394,6 +385,7 @@
                   10
                ]
             ],
+            "name" : "021",
             "id" : "021"
          },
          {
@@ -411,11 +403,11 @@
                   10
                ]
             ],
-            "id" : "022",
-            "name" : "022"
+            "name" : "022",
+            "id" : "022"
          },
          {
-            "name" : "023",
+            "id" : "023",
             "data" : [
                [
                   "Perl",
@@ -430,10 +422,9 @@
                   12
                ]
             ],
-            "id" : "023"
+            "name" : "023"
          },
          {
-            "name" : "024",
             "data" : [
                [
                   "Perl",
@@ -448,9 +439,11 @@
                   11
                ]
             ],
+            "name" : "024",
             "id" : "024"
          },
          {
+            "name" : "025",
             "data" : [
                [
                   "Perl",
@@ -465,11 +458,11 @@
                   12
                ]
             ],
-            "id" : "025",
-            "name" : "025"
+            "id" : "025"
          },
          {
             "id" : "026",
+            "name" : "026",
             "data" : [
                [
                   "Perl",
@@ -483,8 +476,7 @@
                   "Blog",
                   10
                ]
-            ],
-            "name" : "026"
+            ]
          },
          {
             "name" : "027",
@@ -505,6 +497,7 @@
             "id" : "027"
          },
          {
+            "id" : "028",
             "data" : [
                [
                   "Perl",
@@ -519,11 +512,9 @@
                   9
                ]
             ],
-            "id" : "028",
             "name" : "028"
          },
          {
-            "name" : "029",
             "data" : [
                [
                   "Perl",
@@ -538,10 +529,12 @@
                   12
                ]
             ],
+            "name" : "029",
             "id" : "029"
          },
          {
             "id" : "030",
+            "name" : "030",
             "data" : [
                [
                   "Perl",
@@ -555,11 +548,11 @@
                   "Blog",
                   10
                ]
-            ],
-            "name" : "030"
+            ]
          },
          {
             "id" : "031",
+            "name" : "031",
             "data" : [
                [
                   "Perl",
@@ -573,10 +566,10 @@
                   "Blog",
                   9
                ]
-            ],
-            "name" : "031"
+            ]
          },
          {
+            "id" : "032",
             "name" : "032",
             "data" : [
                [
@@ -591,8 +584,7 @@
                   "Blog",
                   10
                ]
-            ],
-            "id" : "032"
+            ]
          },
          {
             "id" : "033",
@@ -613,7 +605,7 @@
             "name" : "033"
          },
          {
-            "name" : "034",
+            "id" : "034",
             "data" : [
                [
                   "Perl",
@@ -628,9 +620,10 @@
                   11
                ]
             ],
-            "id" : "034"
+            "name" : "034"
          },
          {
+            "id" : "035",
             "data" : [
                [
                   "Perl",
@@ -645,12 +638,9 @@
                   9
                ]
             ],
-            "id" : "035",
             "name" : "035"
          },
          {
-            "name" : "036",
-            "id" : "036",
             "data" : [
                [
                   "Perl",
@@ -664,10 +654,13 @@
                   "Blog",
                   11
                ]
-            ]
+            ],
+            "name" : "036",
+            "id" : "036"
          },
          {
             "id" : "037",
+            "name" : "037",
             "data" : [
                [
                   "Perl",
@@ -681,11 +674,11 @@
                   "Blog",
                   9
                ]
-            ],
-            "name" : "037"
+            ]
          },
          {
             "id" : "038",
+            "name" : "038",
             "data" : [
                [
                   "Perl",
@@ -699,10 +692,10 @@