- Added solutions by Matthew Neleigh.

- Added solutions by Laurent Rosenfeld.
- Added solutions by Stephen G Lynn.
- Added solutions by Roger Bell_West.

19 files changed, 1821 insertions, 1707 deletions

diff --git a/challenge-251/laurent-rosenfeld/blog1.txt b/challenge-251/laurent-rosenfeld/blog1.txt
new file mode 100644
index 0000000000..46722e7536
--- /dev/null
+++ b/challenge-251/laurent-rosenfeld/blog1.txt
@@ -0,0 +1 @@
+https://blogs.perl.org/users/laurent_r/2024/01/perl-weekly-challenge-251-lucky-number.html
diff --git a/challenge-251/laurent-rosenfeld/perl/ch-2.pl b/challenge-251/laurent-rosenfeld/perl/ch-2.pl
new file mode 100644
index 0000000000..c9b51361a6
--- /dev/null
+++ b/challenge-251/laurent-rosenfeld/perl/ch-2.pl
@@ -0,0 +1,39 @@
+use strict;
+use warnings;
+use feature 'say';
+
+sub min {
+    my @in = @_;
+    my $min = $in[0];
+    my $min_i = 0;
+    for my $i (0..$#in) {
+        if ($in[$i] < $min) {
+            $min_i = $i;
+            $min = $in[$i];
+        }
+    }
+    return $min_i;
+}
+
+sub lucky_number {
+    my @in = @_;
+    ROW_LABEL:
+    for my $row (0..$#in) {
+        my $min_i = min @{$in[$row]};
+        my $min_val = $in[$row][$min_i];
+        for my $i (0..$#in) {
+            next ROW_LABEL if $in[$i][$min_i] > $min_val;
+        }
+        return $min_val;
+    }
+    return -1
+}
+
+for my $test ( [ [<3 7 8>], [<9 11 13>], [<15 16 17>] ],
+      [ [<1 10 4 2>], [<9 3 8 7>], [<15 16 17 12>] ],
+      [ [<7 8>], [<1 2>] ]) {
+
+    my @gist = map { " [@$_]" } @$test;
+    printf "%-40s => ", "@gist ";
+    say lucky_number @$test;
+}
diff --git a/challenge-251/laurent-rosenfeld/raku/ch-2.raku b/challenge-251/laurent-rosenfeld/raku/ch-2.raku
new file mode 100644
index 0000000000..60f1c9935f
--- /dev/null
+++ b/challenge-251/laurent-rosenfeld/raku/ch-2.raku
@@ -0,0 +1,21 @@
+sub lucky-number (@in) {
+    ROW-LABEL:
+    for 0..@in.end -> $row {
+        my $min_i = min(0..@in[$row].end, :by( {@in[$row][$_] }));
+        my $min_val = @in[$row][$min_i];
+        for 0..@in.end -> $i {
+            next ROW-LABEL if @in[$i][$min_i] > $min_val;
+        }
+        return $min_val;
+    }
+    return -1
+}
+
+
+for ( <3 7 8>, <9 11 13>, <15 16 17>),
+    ( <1 10 4 2>, <9 3 8 7>, <15 16 17 12>),
+    ( <7 8>, <1 2> ) -> @test {
+
+    printf "%-40s => ", @test.gist;
+    say lucky-number @test;
+}
diff --git a/stats/pwc-current.json b/stats/pwc-current.json
index b6efbdf649..940fdb2f26 100644
--- a/stats/pwc-current.json
+++ b/stats/pwc-current.json
@@ -1,10 +1,10 @@
 {
-   "title" : {
-      "text" : "The Weekly Challenge - 251"
+   "legend" : {
+      "enabled" : 0
    },
    "series" : [
       {
-         "name" : "The Weekly Challenge - 251",
+         "colorByPoint" : 1,
          "data" : [
             {
                "name" : "Arne Sommer",
@@ -12,14 +12,14 @@
                "y" : 3
             },
             {
-               "name" : "Dave Jacoby",
                "drilldown" : "Dave Jacoby",
+               "name" : "Dave Jacoby",
                "y" : 3
             },
             {
+               "y" : 2,
                "drilldown" : "David Ferrone",
-               "name" : "David Ferrone",
-               "y" : 2
+               "name" : "David Ferrone"
             },
             {
                "drilldown" : "E. Choroba",
@@ -27,19 +27,24 @@
                "y" : 2
             },
             {
+               "y" : 6,
                "drilldown" : "Laurent Rosenfeld",
-               "name" : "Laurent Rosenfeld",
-               "y" : 3
+               "name" : "Laurent Rosenfeld"
             },
             {
+               "y" : 10,
                "name" : "Luca Ferrari",
-               "drilldown" : "Luca Ferrari",
-               "y" : 10
+               "drilldown" : "Luca Ferrari"
             },
             {
-               "y" : 2,
                "name" : "Mark Anderson",
-               "drilldown" : "Mark Anderson"
+               "drilldown" : "Mark Anderson",
+               "y" : 2
+            },
+            {
+               "name" : "Matthew Neleigh",
+               "drilldown" : "Matthew Neleigh",
+               "y" : 2
             },
             {
                "name" : "Niels van Dijke",
@@ -47,29 +52,39 @@
                "y" : 2
             },
             {
-               "drilldown" : "Peter Campbell Smith",
                "name" : "Peter Campbell Smith",
+               "drilldown" : "Peter Campbell Smith",
                "y" : 3
             },
             {
                "y" : 2,
-               "drilldown" : "Peter Meszaros",
-               "name" : "Peter Meszaros"
+               "name" : "Peter Meszaros",
+               "drilldown" : "Peter Meszaros"
             },
             {
-               "name" : "Robbie Hatley",
                "drilldown" : "Robbie Hatley",
+               "name" : "Robbie Hatley",
                "y" : 3
             },
             {
+               "name" : "Roger Bell_West",
+               "drilldown" : "Roger Bell_West",
+               "y" : 4
+            },
+            {
                "y" : 2,
                "name" : "Simon Proctor",
                "drilldown" : "Simon Proctor"
             },
             {
-               "drilldown" : "Thomas Kohler",
+               "y" : 3,
+               "name" : "Stephen G. Lynn",
+               "drilldown" : "Stephen G. Lynn"
+            },
+            {
+               "y" : 4,
                "name" : "Thomas Kohler",
-               "y" : 4
+               "drilldown" : "Thomas Kohler"
             },
             {
                "y" : 4,
@@ -82,39 +97,31 @@
                "name" : "W. Luis Mochan"
             }
          ],
-         "colorByPoint" : 1
+         "name" : "The Weekly Challenge - 251"
       }
    ],
-   "chart" : {
-      "type" : "column"
+   "title" : {
+      "text" : "The Weekly Challenge - 251"
    },
-   "xAxis" : {
-      "type" : "category"
+   "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
    },
-   "subtitle" : {
-      "text" : "[Champions: 15] Last updated at 2024-01-09 22:29:40 GMT"
+   "chart" : {
+      "type" : "column"
    },
    "yAxis" : {
       "title" : {
          "text" : "Total Solutions"
       }
    },
-   "legend" : {
-      "enabled" : 0
-   },
-   "plotOptions" : {
-      "series" : {
-         "borderWidth" : 0,
-         "dataLabels" : {
-            "enabled" : 1,
-            "format" : "{point.y}"
-         }
-      }
+   "xAxis" : {
+      "type" : "category"
    },
    "drilldown" : {
       "series" : [
          {
-            "name" : "Arne Sommer",
             "id" : "Arne Sommer",
             "data" : [
                [
@@ -125,11 +132,11 @@
                   "Blog",
                   1
                ]
-            ]
+            ],
+            "name" : "Arne Sommer"
          },
          {
             "id" : "Dave Jacoby",
-            "name" : "Dave Jacoby",
             "data" : [
                [
                   "Perl",
@@ -139,48 +146,48 @@
                   "Blog",
                   1
                ]
-            ]
+            ],
+            "name" : "Dave Jacoby"
          },
          {
-            "name" : "David Ferrone",
-            "id" : "David Ferrone",
             "data" : [
                [
                   "Perl",
                   2
                ]
-            ]
+            ],
+            "name" : "David Ferrone",
+            "id" : "David Ferrone"
          },
          {
+            "name" : "E. Choroba",
             "data" : [
                [
                   "Perl",
                   2
                ]
             ],
-            "id" : "E. Choroba",
-            "name" : "E. Choroba"
+            "id" : "E. Choroba"
          },
          {
+            "id" : "Laurent Rosenfeld",
             "data" : [
                [
                   "Perl",
-                  1
+                  2
                ],
                [
                   "Raku",
-                  1
+                  2
                ],
                [
                   "Blog",
-                  1
+                  2
                ]
             ],
-            "id" : "Laurent Rosenfeld",
             "name" : "Laurent Rosenfeld"
          },
          {
-            "id" : "Luca Ferrari",
             "name" : "Luca Ferrari",
             "data" : [
                [
@@ -191,30 +198,40 @@
                   "Blog",
                   8
                ]
-            ]
+            ],
+            "id" : "Luca Ferrari"
          },
          {
+            "id" : "Mark Anderson",
+            "name" : "Mark Anderson",
             "data" : [
                [
                   "Raku",
                   2
                ]
+            ]
+         },
+         {
+            "id" : "Matthew Neleigh",
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ]
             ],
-            "id" : "Mark Anderson",
-            "name" : "Mark Anderson"
+            "name" : "Matthew Neleigh"
          },
          {
-            "id" : "Niels van Dijke",
-            "name" : "Niels van Dijke",
             "data" : [
                [
                   "Perl",
                   2
                ]
-            ]
+            ],
+            "name" : "Niels van Dijke",
+            "id" : "Niels van Dijke"
          },
          {
-            "id" : "Peter Campbell Smith",
             "name" : "Peter Campbell Smith",
             "data" : [
                [
@@ -225,21 +242,21 @@
                   "Blog",
                   1
                ]
-            ]
+            ],
+            "id" : "Peter Campbell Smith"
          },
          {
             "name" : "Peter Meszaros",
-            "id" : "Peter Meszaros",
             "data" : [
                [
                   "Perl",
                   2
                ]
-            ]
+            ],
+            "id" : "Peter Meszaros"
          },
          {
             "id" : "Robbie Hatley",
-            "name" : "Robbie Hatley",
             "data" : [
                [
                   "Perl",
@@ -249,7 +266,22 @@
                   "Blog",
                   1
                ]
-            ]
+            ],
+            "name" : "Robbie Hatley"
+         },
+         {
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ],
+               [
+                  "Raku",
+                  2
+               ]
+            ],
+            "name" : "Roger Bell_West",
+            "id" : "Roger Bell_West"
          },
          {
             "data" : [
@@ -262,6 +294,21 @@
             "id" : "Simon Proctor"
          },
          {
+            "id" : "Stephen G. Lynn",
+            "name" : "Stephen G. Lynn",
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ],
+               [
+                  "Blog",
+                  1
+               ]
+            ]
+         },
+         {
+            "id" : "Thomas Kohler",
             "data" : [
                [
                   "Perl",
@@ -272,11 +319,9 @@
                   2
                ]
             ],
-            "id" : "Thomas Kohler",
             "name" : "Thomas Kohler"
          },
          {
-            "name" : "Ulrich Rieke",
             "id" : "Ulrich Rieke",
             "data" : [
                [
@@ -287,7 +332,8 @@
                   "Raku",
                   2
                ]
-            ]
+            ],
+            "name" : "Ulrich Rieke"
          },
          {
             "data" : [
@@ -300,14 +346,21 @@
                   1
                ]
             ],
-            "id" : "W. Luis Mochan",
-            "name" : "W. Luis Mochan"
+            "name" : "W. Luis Mochan",
+            "id" : "W. Luis Mochan"
          }
       ]
    },
-   "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/>"
+   "subtitle" : {
+      "text" : "[Champions: 18] Last updated at 2024-01-10 17:06:17 GMT"
+   },
+   "plotOptions" : {
+      "series" : {
+         "dataLabels" : {
+            "format" : "{point.y}",
+            "enabled" : 1
+         },
+         "borderWidth" : 0
+      }
    }
 }
diff --git a/stats/pwc-language-breakdown-summary.json b/stats/pwc-language-breakdown-summary.json
index dca33e6016..6466ba1c2d 100644
--- a/stats/pwc-language-breakdown-summary.json
+++ b/stats/pwc-language-breakdown-summary.json
@@ -1,63 +1,63 @@
 {
-   "subtitle" : {
-      "text" : "Last updated at 2024-01-09 22:29:40 GMT"
-   },
-   "xAxis" : {
-      "labels" : {
-         "style" : {
-            "fontSize" : "13px",
-            "fontFamily" : "Verdana, sans-serif"
-         }
-      },
-      "type" : "category"
+   "tooltip" : {
+      "pointFormat" : "<b>{point.y:.0f}</b>"
    },
    "chart" : {
       "type" : "column"
    },
-   "title" : {
-      "text" : "The Weekly Challenge Contributions [2019 - 2024]"
-   },
    "series" : [
       {
+         "name" : "Contributions",
          "data" : [
             [
                "Blog",
-               4397
+               4399
             ],
             [
                "Perl",
-               12930
+               12937
             ],
             [
                "Raku",
-               7457
+               7460
             ]
          ],
          "dataLabels" : {
-            "align" : "right",
-            "format" : "{point.y:.0f}",
+            "enabled" : "true",
             "y" : 10,
-            "color" : "#FFFFFF",
             "rotation" : -90,
+            "format" : "{point.y:.0f}",
+            "align" : "right",
+            "color" : "#FFFFFF",
             "style" : {
                "fontFamily" : "Verdana, sans-serif",
                "fontSize" : "13px"
-            },
-            "enabled" : "true"
-         },
-         "name" : "Contributions"
+            }
+         }
       }
    ],
-   "tooltip" : {
-      "pointFormat" : "<b>{point.y:.0f}</b>"
+   "legend" : {
+      "enabled" : "false"
+   },
+   "title" : {
+      "text" : "The Weekly Challenge Contributions [2019 - 2024]"
+   },
+   "subtitle" : {
+      "text" : "Last updated at 2024-01-10 17:06:17 GMT"
+   },
+   "xAxis" : {
+      "labels" : {
+         "style" : {
+            "fontSize" : "13px",
+            "fontFamily" : "Verdana, sans-serif"
+         }
+      },
+      "type" : "category"
    },
    "yAxis" : {
+      "min" : 0,
       "title" : {
          "text" : null
-      },
-      "min" : 0
-   },
-   "legend" : {
-      "enabled" : "false"
+      }
    }
 }
diff --git a/stats/pwc-language-breakdown.json b/stats/pwc-language-breakdown.json
index 8a342ac159..7b8510c7bf 100644
--- a/stats/pwc-language-breakdown.json
+++ b/stats/pwc-language-breakdown.json
@@ -1,13 +1,17 @@
 {
-   "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"
    },
-   "subtitle" : {
-      "text" : "Click the columns to drilldown the language breakdown. Last updated at 2024-01-09 22:29:40 GMT"
+   "chart" : {
+      "type" : "column"
+   },
+   "legend" : {
+      "enabled" : "false"
    },
    "series" : [
       {
-         "colorByPoint" : "true",
          "data" : [
             {
                "drilldown" : "001",
@@ -15,19 +19,19 @@
                "y" : 164
             },
             {
-               "y" : 129,
+               "drilldown" : "002",
                "name" : "#002",
-               "drilldown" : "002"
+               "y" : 129
             },
             {
                "y" : 87,
-               "drilldown" : "003",
-               "name" : "#003"
+               "name" : "#003",
+               "drilldown" : "003"
             },
             {
-               "y" : 103,
                "drilldown" : "004",
-               "name" : "#004"
+               "name" : "#004",
+               "y" : 103
             },
             {
                "y" : 80,
@@ -35,9 +39,9 @@
                "name" : "#005"
             },
             {
+               "y" : 61,
                "name" : "#006",
-               "drilldown" : "006",
-               "y" : 61
+               "drilldown" : "006"
             },
             {
                "y" : 69,
@@ -51,12 +55,12 @@
             },
             {
                "y" : 80,
-               "name" : "#009",
-               "drilldown" : "009"
+               "drilldown" : "009",
+               "name" : "#009"
             },
             {
-               "drilldown" : "010",
                "name" : "#010",
+               "drilldown" : "010",
                "y" : 69
             },
             {
@@ -75,24 +79,24 @@
                "drilldown" : "013"
             },
             {
+               "y" : 102,
                "drilldown" : "014",
-               "name" : "#014",
-               "y" : 102
+               "name" : "#014"
             },
             {
-               "y" : 101,
                "name" : "#015",
-               "drilldown" : "015"
+               "drilldown" : "015",
+               "y" : 101
             },
             {
                "y" : 75,
-               "name" : "#016",
-               "drilldown" : "016"
+               "drilldown" : "016",
+               "name" : "#016"
             },
             {
-               "y" : 86,
+               "name" : "#017",
                "drilldown" : "017",
-               "name" : "#017"
+               "y" : 86
             },
             {
                "name" : "#018",
@@ -100,13 +104,13 @@
                "y" : 83
             },
             {
-               "y" : 105,
                "drilldown" : "019",
-               "name" : "#019"
+               "name" : "#019",
+               "y" : 105
             },
             {
-               "name" : "#020",
                "drilldown" : "020",
+               "name" : "#020",
                "y" : 103
             },
             {
@@ -115,18 +119,18 @@
                "y" : 74
             },
             {
-               "name" : "#022",
                "drilldown" : "022",
+               "name" : "#022",
                "y" : 72
             },
             {
-               "name" : "#023",
                "drilldown" : "023",
+               "name" : "#023",
                "y" : 101
             },
             {
-               "drilldown" : "024",
                "name" : "#024",
+               "drilldown" : "024",
                "y" : 77
             },
             {
@@ -135,49 +139,49 @@
                "name" : "#025"
             },
             {
-               "drilldown" : "026",
                "name" : "#026",
+               "drilldown" : "026",
                "y" : 76
             },
             {
-               "y" : 64,
                "drilldown" : "027",
-               "name" : "#027"
+               "name" : "#027",
+               "y" : 64
             },
             {
-               "y" : 82,
                "drilldown" : "028",
-               "name" : "#028"
+               "name" : "#028",
+               "y" : 82
             },
             {
+               "y" : 83,
                "drilldown" : "029",
-               "name" : "#029",
-               "y" : 83
+               "name" : "#029"
             },
             {
-               "name" : "#030",
+               "y" : 121,
                "drilldown" : "030",
-               "y" : 121
+               "name" : "#030"
             },
             {
-               "name" : "#031",
+               "y" : 93,
                "drilldown" : "031",
-               "y" : 93
+               "name" : "#031"
             },
             {
-               "y" : 98,
+               "name" : "#032",
                "drilldown" : "032",
-               "name" : "#032"
+               "y" : 98
             },
             {
                "y" : 114,
-               "name" : "#033",
-               "drilldown" : "033"
+               "drilldown" : "033",
+               "name" : "#033"
             },
             {
-               "y" : 70,
+               "drilldown" : "034",
                "name" : "#034",
-               "drilldown" : "034"
+               "y" : 70
             },
             {
                "y" : 68,
@@ -185,44 +189,44 @@
                "drilldown" : "035"
             },
             {
-               "y" : 70,
                "drilldown" : "036",
-               "name" : "#036"
+               "name" : "#036",
+               "y" : 70
             },
             {
                "y" : 70,
-               "name" : "#037",
-               "drilldown" : "037"
+               "drilldown" : "037",
+               "name" : "#037"
             },
             {
+               "y" : 74,
                "name" : "#038",
-               "drilldown" : "038",
-               "y" : 74
+               "drilldown" : "038"
             },
             {
-               "y" : 68,
                "drilldown" : "039",
-               "name" : "#039"
+               "name" : "#039",
+               "y" : 68
             },
             {
+               "y" : 77,
                "name" : "#040",
-               "drilldown" : "040",
-               "y" : 77
+               "drilldown" : "040"
             },
             {
-               "y" : 80,
+               "name" : "#041",
                "drilldown" : "041",
-               "name" : "#041"
+               "y" : 80
             },
             {
-               "y" : 98,
                "name" : "#042",
-               "drilldown" : "042"
+               "drilldown" : "042",
+               "y" : 98
             },
             {
-               "y" : 72,
+               "name" : "#043",
                "drilldown" : "043",
-               "name" : "#043"
+               "y" : 72
             },
             {
                "y" : 90,
@@ -230,13 +234,13 @@
                "name" : "#044"
             },
             {
-               "y" : 102,
+               "name" : "#045",
                "drilldown" : "045",
-               "name" : "#045"
+               "y" : 102
             },
             {
-               "name" : "#046",
                "drilldown" : "046",
+               "name" : "#046",
                "y" : 93
             },
             {
@@ -245,9 +249,9 @@
                "y" : 88
             },
             {
-               "y" : 112,
                "drilldown" : "048",
-               "name" : "#048"
+               "name" : "#048",
+               "y" : 112
             },
             {
                "drilldown" : "049",
@@ -260,24 +264,24 @@
                "y" : 104
             },
             {
-               "y" : 95,
+               "name" : "#051",
                "drilldown" : "051",
-               "name" : "#051"
+               "y" : 95
             },
             {
-               "y" : 93,
+               "drilldown" : "052",
                "name" : "#052",
-               "drilldown" : "052"
+               "y" : 93
             },
             {
                "y" : 105,
-               "drilldown" : "053",
-               "name" : "#053"
+               "name" : "#053",
+               "drilldown" : "053"
             },
             {
                "y" : 107,
-               "drilldown" : "054",
-               "name" : "#054"
+               "name" : "#054",
+               "drilldown" : "054"
             },
             {
                "y" : 92,
@@ -286,8 +290,8 @@
             },
             {
                "y" : 104,
-               "drilldown" : "056",
-               "name" : "#056"
+               "name" : "#056",
+               "drilldown" : "056"
             },
             {
                "y" : 86,
@@ -295,9 +299,9 @@
                "name" : "#057"
             },
             {
-               "y" : 71,
+               "name" : "#058",
                "drilldown" : "058",
-               "name" : "#058"
+               "y" : 71
             },
             {
                "y" : 93,
@@ -305,24 +309,24 @@
                "name" : "#059"
             },
             {
+               "y" : 89,
                "name" : "#060",
-               "drilldown" : "060",
-               "y" : 89
+               "drilldown" : "060"
             },
             {
-               "y" : 85,
+               "name" : "#061",
                "drilldown" : "061",
-               "name" : "#061"
+               "y" : 85
             },
             {
+               "y" : 62,
                "drilldown" : "062",
-               "name" : "#062",
-               "y" : 62
+               "name" : "#062"
             },
             {
-               "y" : 93,
+               "name" : "#063",
                "drilldown" : "063",
-               "name" : "#063"
+               "y" : 93
             },
             {
                "drilldown" : "064",
@@ -330,34 +334,34 @@
                "y" : 84
             },
             {
-               "y" : 77,
+               "name" : "#065",
                "drilldown" : "065",
-               "name" : "#065"
+               "y" : 77
             },
             {
-               "drilldown" : "066",
                "name" : "#066",
+               "drilldown" : "066",
                "y" : 88
             },
             {
-               "y" : 94,
+               "name" : "#067",
                "drilldown" : "067",
-               "name" : "#067"
+               "y" : 94
             },
             {
-               "y" : 79,
+               "name" : "#068",
                "drilldown" : "068",
-               "name" : "#068"
+               "y" : 79
             },
             {
-               "drilldown" : "069",
                "name" : "#069",
+               "drilldown" : "069",
                "y" : 87
             },
             {
-               "name" : "#070",
+               "y" : 98,
                "drilldown" : "070",
-               "y" : 98
+               "name" : "#070"
             },
             {
                "drilldown" : "071",
@@ -365,9 +369,9 @@
                "y" : 82
             },