- Added solutions by Laurent Rosenfeld.

20 files changed, 1944 insertions, 1864 deletions

diff --git a/challenge-193/laurent-rosenfeld/blog.txt b/challenge-193/laurent-rosenfeld/blog.txt
new file mode 100644
index 0000000000..4e7f8d435c
--- /dev/null
+++ b/challenge-193/laurent-rosenfeld/blog.txt
@@ -0,0 +1 @@
+https://blogs.perl.org/users/laurent_r/2022/11/perl-weekly-challenge-193-binary-string-and-odd-string.html
diff --git a/challenge-193/laurent-rosenfeld/perl/ch-1.sh b/challenge-193/laurent-rosenfeld/perl/ch-1.sh
new file mode 100644
index 0000000000..43ee800832
--- /dev/null
+++ b/challenge-193/laurent-rosenfeld/perl/ch-1.sh
@@ -0,0 +1,4 @@
+perl -e 'my $c = shift; printf "%0${c}b ", $_ for 0..(2**$c) - 1' 3
+echo
+perl -e 'my $c = shift; printf "%0${c}b ", $_ for 0..(2**$c) - 1' 4
+echo
diff --git a/challenge-193/laurent-rosenfeld/perl/ch-2.pl b/challenge-193/laurent-rosenfeld/perl/ch-2.pl
new file mode 100644
index 0000000000..9e70361837
--- /dev/null
+++ b/challenge-193/laurent-rosenfeld/perl/ch-2.pl
@@ -0,0 +1,26 @@
+use strict;
+use warnings;
+use feature qw/say/;
+use Data::Dumper;
+
+sub diff_array  {
+    my $str = shift;
+    my @diff;
+    for my $i (1.. length($str) - 1) {
+        push @diff,
+            ord(substr($str, $i, 1))
+            - ord(substr($str, $i-1, 1));
+    }
+    return "@diff";
+}
+
+for my $test ([<adc wzy abc>], [<aaa bob ccc ddd>]) {
+    my %result;
+    for my $st (@$test) {
+        push @{$result{diff_array $st}}, $st;
+    }
+    # say Dumper \%result;
+    for my $k (keys %result) {
+        say "@$test -> ", @{$result{$k}} if scalar @{$result{$k}} == 1;
+    }
+}
diff --git a/challenge-193/laurent-rosenfeld/raku/ch-1.sh b/challenge-193/laurent-rosenfeld/raku/ch-1.sh
new file mode 100644
index 0000000000..920b00a45d
--- /dev/null
+++ b/challenge-193/laurent-rosenfeld/raku/ch-1.sh
@@ -0,0 +1,4 @@
+raku -e 'sub MAIN ($n) { printf "%03b ", $_ for 0..2**$n-1; }' 3
+echo
+raku -e 'sub MAIN ($n) { printf "%03b ", $_ for 0..2**$n-1; }' 4
+echo
diff --git a/challenge-193/laurent-rosenfeld/raku/ch-2.raku b/challenge-193/laurent-rosenfeld/raku/ch-2.raku
new file mode 100644
index 0000000000..880992a122
--- /dev/null
+++ b/challenge-193/laurent-rosenfeld/raku/ch-2.raku
@@ -0,0 +1,22 @@
+my %transco = ("a".."z" Z 0..25).flat; # a => 0, b => 1 ...
+
+sub diff-array ($str) {
+    my @diff;
+    for 1..^$str.chars -> $i {
+        push @diff,
+            %transco{substr($str, $i, 1)}
+            - %transco{substr($str, $i-1, 1)};
+    }
+    return @diff;
+}
+
+for <adc wzy abc>, <aaa bob ccc ddd> -> @test {
+    my %result;
+    for @test -> $st {
+        push %result, (diff-array $st) => $st;
+    }
+    # say %result;
+    for %result.keys -> $k {
+        say @test, " -> ", %result{$k} if %result{$k}.elems == 1;
+    }
+}
diff --git a/stats/pwc-current.json b/stats/pwc-current.json
index ce0627c26e..d327926338 100644
--- a/stats/pwc-current.json
+++ b/stats/pwc-current.json
@@ -1,27 +1,147 @@
 {
+   "subtitle" : {
+      "text" : "[Champions: 14] Last updated at 2022-11-30 10:22:09 GMT"
+   },
+   "title" : {
+      "text" : "The Weekly Challenge - 193"
+   },
+   "yAxis" : {
+      "title" : {
+         "text" : "Total Solutions"
+      }
+   },
+   "plotOptions" : {
+      "series" : {
+         "borderWidth" : 0,
+         "dataLabels" : {
+            "enabled" : 1,
+            "format" : "{point.y}"
+         }
+      }
+   },
+   "tooltip" : {
+      "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
+   },
+   "series" : [
+      {
+         "name" : "The Weekly Challenge - 193",
+         "colorByPoint" : 1,
+         "data" : [
+            {
+               "y" : 2,
+               "name" : "E. Choroba",
+               "drilldown" : "E. Choroba"
+            },
+            {
+               "y" : 2,
+               "name" : "Feng Chang",
+               "drilldown" : "Feng Chang"
+            },
+            {
+               "drilldown" : "James Smith",
+               "y" : 3,
+               "name" : "James Smith"
+            },
+            {
+               "drilldown" : "Laurent Rosenfeld",
+               "y" : 5,
+               "name" : "Laurent Rosenfeld"
+            },
+            {
+               "y" : 8,
+               "name" : "Luca Ferrari",
+               "drilldown" : "Luca Ferrari"
+            },
+            {
+               "drilldown" : "Mark Anderson",
+               "name" : "Mark Anderson",
+               "y" : 2
+            },
+            {
+               "drilldown" : "Niels van Dijke",
+               "name" : "Niels van Dijke",
+               "y" : 2
+            },
+            {
+               "drilldown" : "Olivier Delouya",
+               "y" : 1,
+               "name" : "Olivier Delouya"
+            },
+            {
+               "drilldown" : "Peter Campbell Smith",
+               "name" : "Peter Campbell Smith",
+               "y" : 3
+            },
+            {
+               "y" : 2,
+               "name" : "Robert DiCicco",
+               "drilldown" : "Robert DiCicco"
+            },
+            {
+               "drilldown" : "Roger Bell_West",
+               "name" : "Roger Bell_West",
+               "y" : 4
+            },
+            {
+               "drilldown" : "Simon Proctor",
+               "name" : "Simon Proctor",
+               "y" : 1
+            },
+            {
+               "name" : "Stephen G. Lynn",
+               "y" : 5,
+               "drilldown" : "Stephen G. Lynn"
+            },
+            {
+               "drilldown" : "Thomas Kohler",
+               "name" : "Thomas Kohler",
+               "y" : 2
+            }
+         ]
+      }
+   ],
+   "chart" : {
+      "type" : "column"
+   },
    "legend" : {
       "enabled" : 0
    },
    "drilldown" : {
       "series" : [
          {
-            "name" : "E. Choroba",
             "id" : "E. Choroba",
             "data" : [
                [
                   "Perl",
                   2
                ]
-            ]
+            ],
+            "name" : "E. Choroba"
          },
          {
             "id" : "Feng Chang",
-            "name" : "Feng Chang",
             "data" : [
                [
                   "Raku",
                   2
                ]
+            ],
+            "name" : "Feng Chang"
+         },
+         {
+            "name" : "James Smith",
+            "id" : "James Smith",
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ],
+               [
+                  "Blog",
+                  1
+               ]
             ]
          },
          {
@@ -31,14 +151,19 @@
                   2
                ],
                [
+                  "Raku",
+                  2
+               ],
+               [
                   "Blog",
                   1
                ]
             ],
-            "id" : "James Smith",
-            "name" : "James Smith"
+            "id" : "Laurent Rosenfeld",
+            "name" : "Laurent Rosenfeld"
          },
          {
+            "name" : "Luca Ferrari",
             "data" : [
                [
                   "Raku",
@@ -49,42 +174,41 @@
                   6
                ]
             ],
-            "id" : "Luca Ferrari",
-            "name" : "Luca Ferrari"
+            "id" : "Luca Ferrari"
          },
          {
             "name" : "Mark Anderson",
-            "id" : "Mark Anderson",
             "data" : [
                [
                   "Raku",
                   2
                ]
-            ]
+            ],
+            "id" : "Mark Anderson"
          },
          {
-            "id" : "Niels van Dijke",
             "name" : "Niels van Dijke",
             "data" : [
                [
                   "Perl",
                   2
                ]
-            ]
+            ],
+            "id" : "Niels van Dijke"
          },
          {
+            "id" : "Olivier Delouya",
             "data" : [
                [
                   "Perl",
                   1
                ]
             ],
-            "id" : "Olivier Delouya",
             "name" : "Olivier Delouya"
          },
          {
-            "id" : "Peter Campbell Smith",
             "name" : "Peter Campbell Smith",
+            "id" : "Peter Campbell Smith",
             "data" : [
                [
                   "Perl",
@@ -97,6 +221,7 @@
             ]
          },
          {
+            "name" : "Robert DiCicco",
             "data" : [
                [
                   "Perl",
@@ -107,12 +232,10 @@
                   1
                ]
             ],
-            "name" : "Robert DiCicco",
             "id" : "Robert DiCicco"
          },
          {
             "id" : "Roger Bell_West",
-            "name" : "Roger Bell_West",
             "data" : [
                [
                   "Perl",
@@ -122,19 +245,21 @@
                   "Raku",
                   2
                ]
-            ]
+            ],
+            "name" : "Roger Bell_West"
          },
          {
+            "id" : "Simon Proctor",
             "data" : [
                [
                   "Raku",
                   1
                ]
             ],
-            "name" : "Simon Proctor",
-            "id" : "Simon Proctor"
+            "name" : "Simon Proctor"
          },
          {
+            "id" : "Stephen G. Lynn",
             "data" : [
                [
                   "Perl",
@@ -149,8 +274,7 @@
                   1
                ]
             ],
-            "name" : "Stephen G. Lynn",
-            "id" : "Stephen G. Lynn"
+            "name" : "Stephen G. Lynn"
          },
          {
             "data" : [
@@ -164,107 +288,6 @@
          }
       ]
    },
-   "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/>"
-   },
-   "chart" : {
-      "type" : "column"
-   },
-   "series" : [
-      {
-         "data" : [
-            {
-               "drilldown" : "E. Choroba",
-               "name" : "E. Choroba",
-               "y" : 2
-            },
-            {
-               "drilldown" : "Feng Chang",
-               "name" : "Feng Chang",
-               "y" : 2
-            },
-            {
-               "y" : 3,
-               "drilldown" : "James Smith",
-               "name" : "James Smith"
-            },
-            {
-               "drilldown" : "Luca Ferrari",
-               "name" : "Luca Ferrari",
-               "y" : 8
-            },
-            {
-               "name" : "Mark Anderson",
-               "drilldown" : "Mark Anderson",
-               "y" : 2
-            },
-            {
-               "name" : "Niels van Dijke",
-               "drilldown" : "Niels van Dijke",
-               "y" : 2
-            },
-            {
-               "drilldown" : "Olivier Delouya",
-               "name" : "Olivier Delouya",
-               "y" : 1
-            },
-            {
-               "name" : "Peter Campbell Smith",
-               "drilldown" : "Peter Campbell Smith",
-               "y" : 3
-            },
-            {
-               "y" : 2,
-               "drilldown" : "Robert DiCicco",
-               "name" : "Robert DiCicco"
-            },
-            {
-               "drilldown" : "Roger Bell_West",
-               "name" : "Roger Bell_West",
-               "y" : 4
-            },
-            {
-               "drilldown" : "Simon Proctor",
-               "name" : "Simon Proctor",
-               "y" : 1
-            },
-            {
-               "name" : "Stephen G. Lynn",
-               "drilldown" : "Stephen G. Lynn",
-               "y" : 5
-            },
-            {
-               "y" : 2,
-               "name" : "Thomas Kohler",
-               "drilldown" : "Thomas Kohler"
-            }
-         ],
-         "colorByPoint" : 1,
-         "name" : "The Weekly Challenge - 193"
-      }
-   ],
-   "subtitle" : {
-      "text" : "[Champions: 13] Last updated at 2022-11-30 09:38:26 GMT"
-   },
-   "yAxis" : {
-      "title" : {
-         "text" : "Total Solutions"
-      }
-   },
-   "title" : {
-      "text" : "The Weekly Challenge - 193"
-   },
-   "plotOptions" : {
-      "series" : {
-         "dataLabels" : {
-            "enabled" : 1,
-            "format" : "{point.y}"
-         },
-         "borderWidth" : 0
-      }
-   },
    "xAxis" : {
       "type" : "category"
    }
diff --git a/stats/pwc-language-breakdown-summary.json b/stats/pwc-language-breakdown-summary.json
index 6273936e94..dccc565e66 100644
--- a/stats/pwc-language-breakdown-summary.json
+++ b/stats/pwc-language-breakdown-summary.json
@@ -1,62 +1,62 @@
 {
-   "xAxis" : {
-      "labels" : {
-         "style" : {
-            "fontSize" : "13px",
-            "fontFamily" : "Verdana, sans-serif"
-         }
-      },
-      "type" : "category"
-   },
-   "yAxis" : {
-      "title" : {
-         "text" : null
-      },
-      "min" : 0
-   },
-   "title" : {
-      "text" : "The Weekly Challenge Contributions [2019 - 2022]"
-   },
    "series" : [
       {
-         "name" : "Contributions",
          "dataLabels" : {
-            "y" : 10,
             "format" : "{point.y:.0f}",
+            "align" : "right",
             "enabled" : "true",
-            "style" : {
-               "fontSize" : "13px",
-               "fontFamily" : "Verdana, sans-serif"
-            },
             "color" : "#FFFFFF",
-            "align" : "right",
-            "rotation" : -90
+            "rotation" : -90,
+            "y" : 10,
+            "style" : {
+               "fontFamily" : "Verdana, sans-serif",
+               "fontSize" : "13px"
+            }
          },
+         "name" : "Contributions",
          "data" : [
             [
                "Blog",
-               3067
+               3068
             ],
             [
                "Perl",
-               9440
+               9442
             ],
             [
                "Raku",
-               5677
+               5679
             ]
          ]
       }
    ],
+   "tooltip" : {
+      "pointFormat" : "<b>{point.y:.0f}</b>"
+   },
    "subtitle" : {
-      "text" : "Last updated at 2022-11-30 09:38:26 GMT"
+      "text" : "Last updated at 2022-11-30 10:22:09 GMT"
+   },
+   "yAxis" : {
+      "min" : 0,
+      "title" : {
+         "text" : null
+      }
+   },
+   "title" : {
+      "text" : "The Weekly Challenge Contributions [2019 - 2022]"
+   },
+   "xAxis" : {
+      "type" : "category",
+      "labels" : {
+         "style" : {
+            "fontFamily" : "Verdana, sans-serif",
+            "fontSize" : "13px"
+         }
+      }
    },
    "legend" : {
       "enabled" : "false"
    },
-   "tooltip" : {
-      "pointFormat" : "<b>{point.y:.0f}</b>"
-   },
    "chart" : {
       "type" : "column"
    }
diff --git a/stats/pwc-language-breakdown.json b/stats/pwc-language-breakdown.json
index f444a9f1d4..5a0d907691 100644
--- a/stats/pwc-language-breakdown.json
+++ b/stats/pwc-language-breakdown.json
@@ -1,34 +1,8 @@
 {
-   "plotOptions" : {
-      "series" : {
-         "borderWidth" : 0,
-         "dataLabels" : {
-            "enabled" : 1,
-            "format" : "{point.y}"
-         }
-      }
-   },
-   "yAxis" : {
-      "title" : {
-         "text" : "Total Solutions"
-      }
-   },
-   "title" : {
-      "text" : "The Weekly Challenge Language"
-   },
-   "xAxis" : {
-      "type" : "category"
-   },
-   "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"
-   },
    "drilldown" : {
       "series" : [
          {
             "name" : "001",
-            "id" : "001",
             "data" : [
                [
                   "Perl",
@@ -42,10 +16,10 @@
                   "Blog",
                   11
                ]
-            ]
+            ],
+            "id" : "001"
          },
          {
-            "name" : "002",
             "id" : "002",
             "data" : [
                [
@@ -60,9 +34,11 @@
                   "Blog",
                   10
                ]
-            ]
+            ],
+            "name" : "002"
          },
          {
+            "name" : "003",
             "data" : [
                [
                   "Perl",
@@ -77,12 +53,10 @@
                   9
                ]
             ],
-            "name" : "003",
             "id" : "003"
          },
          {
             "name" : "004",
-            "id" : "004",
             "data" : [
                [
                   "Perl",
@@ -96,7 +70,8 @@
                   "Blog",
                   10
                ]
-            ]
+            ],
+            "id" : "004"
          },
          {
             "name" : "005",
@@ -117,6 +92,8 @@
             ]
          },
          {
+            "name" : "006",
+            "id" : "006",
             "data" : [
                [
                   "Perl",
@@ -130,13 +107,9 @@
                   "Blog",
                   7
                ]
-            ],
-            "id" : "006",
-            "name" : "006"
+            ]
          },
          {
-            "id" : "007",
-            "name" : "007",
             "data" : [
                [
                   "Perl",
@@ -150,9 +123,12 @@
                   "Blog",
                   10
                ]
-            ]
+            ],
+            "id" : "007",
+            "name" : "007"
          },
          {
+            "id" : "008",
             "data" : [
                [
                   "Perl",
@@ -167,10 +143,10 @@
                   12
                ]
             ],
-            "id" : "008",
             "name" : "008"
          },
          {
+            "id" : "009",
             "data" : [
                [
                   "Perl",
@@ -185,10 +161,10 @@
                   13
                ]
             ],
-            "id" : "009",
             "name" : "009"
          },
          {
+            "id" : "010",
             "data" : [
                [
                   "Perl",
@@ -203,11 +179,9 @@
                   11
                ]
             ],
-            "id" : "010",
             "name" : "010"
          },
          {
-            "name" : "011",
             "id" : "011",
             "data" : [
                [
@@ -222,9 +196,12 @@
                   "Blog",
                   10
                ]
-            ]
+            ],
+            "name" : "011"
          },
          {
+            "name" : "012",
+            "id" : "012",
             "data" : [
                [
                   "Perl",
@@ -238,13 +215,10 @@
                   "Blog",
                   11
                ]
-            ],
-            "id" : "012",
-            "name" : "012"
+            ]
          },
          {
             "name" : "013",
-            "id" : "013",
             "data" : [
                [
                   "Perl",
@@ -258,11 +232,10 @@
                   "Blog",
                   13
                ]
-            ]
+            ],
+            "id" : "013"
          },
          {
-            "name" : "014",
-            "id" : "014",
             "data" : [
                [
                   "Perl",
@@ -276,7 +249,9 @@
                   "Blog",
                   15
                ]
-            ]
+            ],
+            "id" : "014",
+            "name" : "014"
          },
          {
             "name" : "015",
@@ -298,7 +273,6 @@
          },
          {
             "name" : "016",
-            "id" : "016",
             "data" : [
                [
                   "Perl",
@@ -312,9 +286,11 @@
                   "Blog",
                   12
                ]
-            ]
+            ],
+            "id" : "016"
          },
          {
+            "name" : "017",
             "data" : [
                [
                   "Perl",
@@ -329,8 +305,7 @@
                   12
                ]
             ],
-            "id" : "017",
-            "name" : "017"
+            "id" : "017"
          },
          {
             "data" : [
@@ -351,8 +326,6 @@
             "name" : "018"
          },
          {
-            "name" : "019",
-            "id" : "019",
             "data" : [
                [
                   "Perl",
@@ -366,11 +339,13 @@
                   "Blog",
                   13
                ]
-            ]
+            ],
+            "id" : "019",
+            "name" : "019"
          },
          {
-            "id" : "020",
             "name" : "020",
+            "id" : "020",
             "data" : [
                [
                   "Perl",
@@ -387,8 +362,6 @@
             ]
          },
          {
-            "name" : "021",
-            "id" : "021",
             "data" : [
                [
                   "Perl",
@@ -402,9 +375,13 @@
                   "Blog",
                   10
                ]
-            ]
+            ],
+            "id" : "021",
+            "name" : "021"
          },
          {
+            "name" : "022",
+            "id" : "022",
             "data" : [
                [
                   "Perl",
@@ -418,11 +395,10 @@
                   "Blog",
                   10
                ]
-            ],
-            "id" : "022",
-            "name" : "022"
+            ]
          },
          {
+            "id" : "023",
             "data" : [
                [
                   "Perl",
@@ -437,10 +413,11 @@
                   12
                ]
             ],
-            "id" : "023",
             "name" : "023"
          },
          {
+            "name" : "024",
+            "id" : "024",
             "data" : [
                [
                   "Perl",
@@ -454,11 +431,10 @@
                   "Blog",
                   11
                ]
-            ],
-            "id" : "024",
-            "name" : "024"
+            ]
          },
          {
+            "name" : "025",
             "data" : [
                [
                   "Perl",
@@ -473,10 +449,11 @@
                   12
                ]
             ],
-            "id" : "025",
-            "name" : "025"
+            "id" : "025"
          },
          {
+            "name" : "026",
+            "id" : "026",
             "data" : [
                [
                   "Perl",
@@ -490,12 +467,9 @@
                   "Blog",
                   10
                ]
-            ],
-            "id" : "026",
-            "name" : "026"
+            ]
          },
          {
-            "id" : "027",
             "name" : "027",
             "data" : [
                [
@@ -510,9 +484,11 @@
                   "Blog",
                   9
                ]
-            ]
+            ],
+            "id" : "027"
          },
          {
+            "name" : "028",
             "data" : [
                [
                   "Perl",
@@ -527,10 +503,10 @@
                   9
                ]
             ],
-            "id" : "028",
-            "name" : "028"
+            "id" : "028"
          },
          {
+            "id" : "029",
             "data" : [
                [
                   "Perl",
@@ -545,7 +521,6 @@
                   12
                ]
             ],
-            "id" : "029",
             "name" : "029"
          },
          {
@@ -567,8 +542,8 @@
             "name" : "030"
          },
          {
-            "id" : "031",
             "name" : "031",
+            "id" : "031",
             "data" : [
                [
                   "Perl",
@@ -603,6 +578,7 @@
             ]
          },
          {
+            "id" : "033",
             "data" : [
                [
                   "Perl",
@@ -617,10 +593,10 @@
                   10
                ]
             ],
-            "id" : "033",
             "name" : "033"
          },
          {
+            "id" : "034",
             "data" : [
                [
                   "Perl",
@@ -635,12 +611,10 @@
                   11
                ]
             ],
-            "id" : "034",
             "name" : "034"
          },
          {
             "id" : "035",
-            "name" : "035",
             "data" : [
                [
                   "Perl",
@@ -654,11 +628,11 @@
                   "Blog",
                   9
                ]
-            ]
+            ],
+            "name" : "035"
          },
          {
             "id" : "036",
-            "name" : "036",
             "data" : [
                [
                   "Perl",
@@ -672,9 +646,12 @@
                   "Blog",
                   11
                ]
-            ]
+            ],
+            "name" : "036"
          },
          {
+            "name" : "037",
+            "id" : "037",
             "data" : [
                [
                   "Perl",
@@ -688,11 +665,10 @@
                   "Blog",
                   9
                ]
-            ],
-            "id" : "037",
-            "name" : "037"
+            ]
          },
          {
+            "name" : "038",
             "data" : [<