- Added solutions by Laurent Rosenfeld.

- Added solutions by Reinier Maliepaard.
- Added solutions by Luca Ferrari.
- Added solutions by Packy Anderson.
- Added solutions by Ali Moradi.

22 files changed, 1872 insertions, 1661 deletions

diff --git a/challenge-276/laurent-rosenfeld/blog.txt b/challenge-276/laurent-rosenfeld/blog.txt
new file mode 100644
index 0000000000..0a72abba6c
--- /dev/null
+++ b/challenge-276/laurent-rosenfeld/blog.txt
@@ -0,0 +1 @@
+https://blogs.perl.org/users/laurent_r/2024/07/perl-weekly-challenge-276-complete-day.html
diff --git a/challenge-276/laurent-rosenfeld/perl/ch-1.pl b/challenge-276/laurent-rosenfeld/perl/ch-1.pl
new file mode 100644
index 0000000000..3c6b15a0ba
--- /dev/null
+++ b/challenge-276/laurent-rosenfeld/perl/ch-1.pl
@@ -0,0 +1,21 @@
+use strict;
+use warnings;
+use feature 'say';
+
+
+sub complete_day {
+    my @in = @_;
+    my $count = 0;
+    for my $i (0..$#in) {
+        for my $j ($i+1..$#in) {
+            $count++ if ($in[$i] + $in[$j]) % 24 == 0;
+        }
+    }
+    return $count;
+}
+
+my @tests = ([<12 12 30 24 24>], [<72 48 24 5>], [<12 18 24>]);
+for my $test (@tests) {
+    printf "%-15s => ", "@$test";
+    say complete_day @$test;
+}
diff --git a/challenge-276/laurent-rosenfeld/raku/ch-1.raku b/challenge-276/laurent-rosenfeld/raku/ch-1.raku
new file mode 100644
index 0000000000..891678b100
--- /dev/null
+++ b/challenge-276/laurent-rosenfeld/raku/ch-1.raku
@@ -0,0 +1,12 @@
+sub complete-day (@in) {
+    my $count = 0;
+    for @in.combinations: 2 -> @pair {
+        $count++ if ([+] @pair) %% 24;
+    }
+    return $count;
+
+my @tests = <12 12 30 24 24>, <72 48 24 5>, <12 18 24>;
+for @tests -> @test {
+    printf "%-15s => ", "@test[]";
+    say complete-day @test;
+}
diff --git a/challenge-276/reinier-maliepaard/blog.txt b/challenge-276/reinier-maliepaard/blog.txt
new file mode 100644
index 0000000000..54151a6a28
--- /dev/null
+++ b/challenge-276/reinier-maliepaard/blog.txt
@@ -0,0 +1 @@
+https://reiniermaliepaard.nl/perl/pwc/index.php?id=pwc276
diff --git a/challenge-276/reinier-maliepaard/perl/ch-1.pl b/challenge-276/reinier-maliepaard/perl/ch-1.pl
new file mode 100644
index 0000000000..a049f09289
--- /dev/null
+++ b/challenge-276/reinier-maliepaard/perl/ch-1.pl
@@ -0,0 +1,36 @@
+#!/usr/bin/perl
+use strict;
+use warnings;
+
+use Math::Combinatorics;
+
+sub complete_day {
+
+    my $c = Math::Combinatorics->new ( count => 2, data => [@_], );
+
+    my $count = 0;
+
+    while ( my @cmb = $c->next_combination ) {
+
+        $count++ if ( ($cmb[0] + $cmb[1]) % 24 == 0 );
+
+    }
+
+    return ($count);
+}
+
+# Tests
+
+my (@hours);
+
+# Example 1
+@hours = (12, 12, 30, 24, 24);
+print(complete_day(@hours), "\n"); # Output: 2
+
+# Example 2
+@hours = (72, 48, 24, 5);
+print(complete_day(@hours), "\n"); # Output: 3
+
+# Example 3
+@hours = (12, 18, 24);
+print(complete_day(@hours), "\n"); # Output: 0
diff --git a/challenge-276/reinier-maliepaard/perl/ch-2.pl b/challenge-276/reinier-maliepaard/perl/ch-2.pl
new file mode 100644
index 0000000000..c8a75a2b00
--- /dev/null
+++ b/challenge-276/reinier-maliepaard/perl/ch-2.pl
@@ -0,0 +1,37 @@
+#!/usr/bin/perl
+use strict;
+use warnings;
+
+use Statistics::Frequency;
+
+sub max_freq {
+
+    my ($count, $f, %freq) = (0);
+
+    $f = Statistics::Frequency->new( @_ );
+    %freq = $f->frequencies;
+
+    $count += $f->frequencies_max for ( grep { $_ == $f->frequencies_max } values %freq );
+
+    return ($count);
+}
+
+# Tests
+
+my (@ints);
+
+# Example 1
+@ints = (1, 2, 2, 4, 1, 5);
+print(max_freq((@ints)), "\n"); # Output: 4
+
+# Example 2
+@ints = (1, 2, 3, 4, 5);
+print(max_freq((@ints)), "\n"); # Output: 5
+
+# Example 3
+@ints = (1, 1, 3, 3, 3, 3);
+print(max_freq((@ints)), "\n"); # Output: 4
+
+# Example 4
+@ints = (1, 2, 2, 4);
+print(max_freq((@ints)), "\n"); # Output: 2
diff --git a/stats/pwc-current.json b/stats/pwc-current.json
index 8fc1dceb0b..d00729e8ee 100644
--- a/stats/pwc-current.json
+++ b/stats/pwc-current.json
@@ -2,47 +2,61 @@
    "drilldown" : {
       "series" : [
          {
-            "id" : "Dave Jacoby",
             "data" : [
                [
                   "Perl",
                   2
+               ],
+               [
+                  "Blog",
+                  1
                ]
             ],
-            "name" : "Dave Jacoby"
+            "id" : "Ali Moradi",
+            "name" : "Ali Moradi"
          },
          {
-            "id" : "David Ferrone",
-            "name" : "David Ferrone",
+            "name" : "Dave Jacoby",
             "data" : [
                [
                   "Perl",
                   2
                ]
-            ]
+            ],
+            "id" : "Dave Jacoby"
          },
          {
-            "name" : "E. Choroba",
+            "id" : "David Ferrone",
             "data" : [
                [
                   "Perl",
                   2
                ]
             ],
-            "id" : "E. Choroba"
+            "name" : "David Ferrone"
          },
          {
             "data" : [
                [
-                  "Raku",
+                  "Perl",
                   2
                ]
             ],
+            "id" : "E. Choroba",
+            "name" : "E. Choroba"
+         },
+         {
             "name" : "Feng Chang",
-            "id" : "Feng Chang"
+            "id" : "Feng Chang",
+            "data" : [
+               [
+                  "Raku",
+                  2
+               ]
+            ]
          },
          {
-            "name" : "Joelle Maslak",
+            "id" : "Joelle Maslak",
             "data" : [
                [
                   "Perl",
@@ -53,50 +67,100 @@
                   2
                ]
             ],
-            "id" : "Joelle Maslak"
+            "name" : "Joelle Maslak"
          },
          {
-            "id" : "Mariano Ortega",
+            "name" : "Laurent Rosenfeld",
             "data" : [
                [
                   "Perl",
-                  2
+                  1
+               ],
+               [
+                  "Raku",
+                  1
+               ],
+               [
+                  "Blog",
+                  1
                ]
             ],
-            "name" : "Mariano Ortega"
+            "id" : "Laurent Rosenfeld"
          },
          {
             "data" : [
                [
                   "Raku",
                   2
+               ],
+               [
+                  "Blog",
+                  9
                ]
             ],
+            "id" : "Luca Ferrari",
+            "name" : "Luca Ferrari"
+         },
+         {
+            "name" : "Mariano Ortega",
+            "id" : "Mariano Ortega",
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ]
+            ]
+         },
+         {
             "name" : "Mark Anderson",
-            "id" : "Mark Anderson"
+            "id" : "Mark Anderson",
+            "data" : [
+               [
+                  "Raku",
+                  2
+               ]
+            ]
          },
          {
-            "id" : "Matthew Neleigh",
             "data" : [
                [
                   "Perl",
                   2
                ]
             ],
+            "id" : "Matthew Neleigh",
             "name" : "Matthew Neleigh"
          },
          {
-            "id" : "Niels van Dijke",
             "name" : "Niels van Dijke",
             "data" : [
                [
                   "Perl",
                   2
                ]
+            ],
+            "id" : "Niels van Dijke"
+         },
+         {
+            "name" : "Packy Anderson",
+            "id" : "Packy Anderson",
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ],
+               [
+                  "Raku",
+                  2
+               ],
+               [
+                  "Blog",
+                  1
+               ]
             ]
          },
          {
-            "id" : "Peter Campbell Smith",
+            "name" : "Peter Campbell Smith",
             "data" : [
                [
                   "Perl",
@@ -107,11 +171,10 @@
                   1
                ]
             ],
-            "name" : "Peter Campbell Smith"
+            "id" : "Peter Campbell Smith"
          },
          {
-            "id" : "Robbie Hatley",
-            "name" : "Robbie Hatley",
+            "name" : "Reinier Maliepaard",
             "data" : [
                [
                   "Perl",
@@ -121,9 +184,25 @@
                   "Blog",
                   1
                ]
-            ]
+            ],
+            "id" : "Reinier Maliepaard"
          },
          {
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ],
+               [
+                  "Blog",
+                  1
+               ]
+            ],
+            "id" : "Robbie Hatley",
+            "name" : "Robbie Hatley"
+         },
+         {
+            "name" : "Roger Bell_West",
             "id" : "Roger Bell_West",
             "data" : [
                [
@@ -134,8 +213,7 @@
                   "Raku",
                   2
                ]
-            ],
-            "name" : "Roger Bell_West"
+            ]
          },
          {
             "id" : "Ryan Thompson",
@@ -152,7 +230,7 @@
             "name" : "Ryan Thompson"
          },
          {
-            "id" : "Simon Green",
+            "name" : "Simon Green",
             "data" : [
                [
                   "Perl",
@@ -163,10 +241,11 @@
                   1
                ]
             ],
-            "name" : "Simon Green"
+            "id" : "Simon Green"
          },
          {
             "name" : "Thomas Kohler",
+            "id" : "Thomas Kohler",
             "data" : [
                [
                   "Perl",
@@ -176,11 +255,9 @@
                   "Blog",
                   2
                ]
-            ],
-            "id" : "Thomas Kohler"
+            ]
          },
          {
-            "id" : "Ulrich Rieke",
             "name" : "Ulrich Rieke",
             "data" : [
                [
@@ -191,9 +268,12 @@
                   "Raku",
                   2
                ]
-            ]
+            ],
+            "id" : "Ulrich Rieke"
          },
          {
+            "name" : "W. Luis Mochan",
+            "id" : "W. Luis Mochan",
             "data" : [
                [
                   "Perl",
@@ -203,67 +283,60 @@
                   "Blog",
                   1
                ]
-            ],
-            "name" : "W. Luis Mochan",
-            "id" : "W. Luis Mochan"
+            ]
          }
       ]
    },
-   "yAxis" : {
-      "title" : {
-         "text" : "Total Solutions"
-      }
+   "xAxis" : {
+      "type" : "category"
+   },
+   "subtitle" : {
+      "text" : "[Champions: 22] Last updated at 2024-07-04 11:16:59 GMT"
    },
    "title" : {
       "text" : "The Weekly Challenge - 276"
    },
-   "plotOptions" : {
-      "series" : {
-         "dataLabels" : {
-            "enabled" : 1,
-            "format" : "{point.y}"
-         },
-         "borderWidth" : 0
-      }
-   },
-   "chart" : {
-      "type" : "column"
-   },
-   "legend" : {
-      "enabled" : 0
-   },
    "tooltip" : {
+      "pointFormat" : "<span style='color:{point.color}'>{point.name}</span>: <b>{point.y:f}</b><br/>",
       "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/>"
+      "headerFormat" : "<span style='font-size:11px'>{series.name}</span><br/>"
    },
-   "xAxis" : {
-      "type" : "category"
+   "legend" : {
+      "enabled" : 0
    },
-   "subtitle" : {
-      "text" : "[Champions: 17] Last updated at 2024-07-02 12:13:56 GMT"
+   "yAxis" : {
+      "title" : {
+         "text" : "Total Solutions"
+      }
    },
    "series" : [
       {
+         "colorByPoint" : 1,
+         "name" : "The Weekly Challenge - 276",
          "data" : [
             {
+               "drilldown" : "Ali Moradi",
+               "y" : 3,
+               "name" : "Ali Moradi"
+            },
+            {
                "name" : "Dave Jacoby",
                "drilldown" : "Dave Jacoby",
                "y" : 2
             },
             {
+               "name" : "David Ferrone",
                "y" : 2,
-               "drilldown" : "David Ferrone",
-               "name" : "David Ferrone"
+               "drilldown" : "David Ferrone"
             },
             {
-               "name" : "E. Choroba",
                "drilldown" : "E. Choroba",
-               "y" : 2
+               "y" : 2,
+               "name" : "E. Choroba"
             },
             {
-               "y" : 2,
                "drilldown" : "Feng Chang",
+               "y" : 2,
                "name" : "Feng Chang"
             },
             {
@@ -272,9 +345,19 @@
                "y" : 4
             },
             {
+               "name" : "Laurent Rosenfeld",
+               "drilldown" : "Laurent Rosenfeld",
+               "y" : 3
+            },
+            {
+               "name" : "Luca Ferrari",
+               "y" : 11,
+               "drilldown" : "Luca Ferrari"
+            },
+            {
                "name" : "Mariano Ortega",
-               "y" : 2,
-               "drilldown" : "Mariano Ortega"
+               "drilldown" : "Mariano Ortega",
+               "y" : 2
             },
             {
                "y" : 2,
@@ -282,58 +365,78 @@
                "name" : "Mark Anderson"
             },
             {
-               "drilldown" : "Matthew Neleigh",
+               "name" : "Matthew Neleigh",
                "y" : 2,
-               "name" : "Matthew Neleigh"
+               "drilldown" : "Matthew Neleigh"
             },
             {
-               "drilldown" : "Niels van Dijke",
                "y" : 2,
+               "drilldown" : "Niels van Dijke",
                "name" : "Niels van Dijke"
             },
             {
+               "name" : "Packy Anderson",
+               "y" : 5,
+               "drilldown" : "Packy Anderson"
+            },
+            {
                "name" : "Peter Campbell Smith",
-               "y" : 3,
-               "drilldown" : "Peter Campbell Smith"
+               "drilldown" : "Peter Campbell Smith",
+               "y" : 3
+            },
+            {
+               "name" : "Reinier Maliepaard",
+               "drilldown" : "Reinier Maliepaard",
+               "y" : 3
             },
             {
-               "name" : "Robbie Hatley",
                "y" : 3,
-               "drilldown" : "Robbie Hatley"
+               "drilldown" : "Robbie Hatley",
+               "name" : "Robbie Hatley"
             },
             {
-               "name" : "Roger Bell_West",
                "drilldown" : "Roger Bell_West",
-               "y" : 4
+               "y" : 4,
+               "name" : "Roger Bell_West"
             },
             {
-               "y" : 3,
+               "name" : "Ryan Thompson",
                "drilldown" : "Ryan Thompson",
-               "name" : "Ryan Thompson"
+               "y" : 3
             },
             {
-               "name" : "Simon Green",
                "drilldown" : "Simon Green",
-               "y" : 3
+               "y" : 3,
+               "name" : "Simon Green"
             },
             {
-               "name" : "Thomas Kohler",
                "y" : 4,
-               "drilldown" : "Thomas Kohler"
+               "drilldown" : "Thomas Kohler",
+               "name" : "Thomas Kohler"
             },
             {
-               "name" : "Ulrich Rieke",
                "drilldown" : "Ulrich Rieke",
-               "y" : 4
+               "y" : 4,
+               "name" : "Ulrich Rieke"
             },
             {
                "drilldown" : "W. Luis Mochan",
                "y" : 3,
                "name" : "W. Luis Mochan"
             }
-         ],
-         "colorByPoint" : 1,
-         "name" : "The Weekly Challenge - 276"
+         ]
+      }
+   ],
+   "chart" : {
+      "type" : "column"
+   },
+   "plotOptions" : {
+      "series" : {
+         "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 b85ea174b1..01330f4ebb 100644
--- a/stats/pwc-language-breakdown-summary.json
+++ b/stats/pwc-language-breakdown-summary.json
@@ -1,63 +1,63 @@
 {
-   "xAxis" : {
-      "labels" : {
-         "style" : {
-            "fontSize" : "13px",
-            "fontFamily" : "Verdana, sans-serif"
-         }
-      },
-      "type" : "category"
+   "chart" : {
+      "type" : "column"
    },
    "series" : [
       {
+         "dataLabels" : {
+            "align" : "right",
+            "color" : "#FFFFFF",
+            "enabled" : "true",
+            "style" : {
+               "fontSize" : "13px",
+               "fontFamily" : "Verdana, sans-serif"
+            },
+            "format" : "{point.y:.0f}",
+            "y" : 10,
+            "rotation" : -90
+         },
          "name" : "Contributions",
          "data" : [
             [
                "Blog",
-               5017
+               5030
             ],
             [
                "Perl",
-               14288
+               14295
             ],
             [
                "Raku",
-               8276
+               8281
             ]
-         ],
-         "dataLabels" : {
-            "y" : 10,
-            "enabled" : "true",
-            "style" : {
-               "fontFamily" : "Verdana, sans-serif",
-               "fontSize" : "13px"
-            },
-            "align" : "right",
-            "color" : "#FFFFFF",
-            "rotation" : -90,
-            "format" : "{point.y:.0f}"
-         }
+         ]
       }
    ],
-   "subtitle" : {
-      "text" : "Last updated at 2024-07-02 12:13:56 GMT"
+   "legend" : {
+      "enabled" : "false"
+   },
+   "yAxis" : {
+      "min" : 0,
+      "title" : {
+         "text" : null
+      }
    },
    "tooltip" : {
       "pointFormat" : "<b>{point.y:.0f}</b>"
    },
-   "chart" : {
-      "type" : "column"
-   },
-   "legend" : {
-      "enabled" : "false"
-   },
    "title" : {
       "text" : "The Weekly Challenge Contributions [2019 - 2024]"
    },
-   "yAxis" : {
-      "title" : {
-         "text" : null
-      },
-      "min" : 0
+   "subtitle" : {
+      "text" : "Last updated at 2024-07-04 11:16:59 GMT"
+   },
+   "xAxis" : {
+      "type" : "category",
+      "labels" : {
+         "style" : {
+            "fontSize" : "13px",
+            "fontFamily" : "Verdana, sans-serif"
+         }
+      }
    }
 }
diff --git a/stats/pwc-language-breakdown.json b/stats/pwc-language-breakdown.json
index 952ee5b2fb..b54adbdc5a 100644
--- a/stats/pwc-language-breakdown.json
+++ b/stats/pwc-language-breakdown.json
@@ -1,19 +1,13 @@
 {
-   "plotOptions" : {
-      "series" : {
-         "dataLabels" : {
-            "format" : "{point.y}",
-            "enabled" : 1
-         },
-         "borderWidth" : 0
-      }
-   },
-   "title" : {
-      "text" : "The Weekly Challenge Language"
+   "tooltip" : {
+      "headerFormat" : "<span style=\"font-size:11px\"></span>",
+      "followPointer" : "true",
+      "pointFormat" : "<span style=\"color:{point.color}\">Challenge {point.name}</span>: <b>{point.y:f}</b><br/>"
    },
    "drilldown" : {
       "series" : [
          {
+            "name" : "001",
             "id" : "001",
             "data" : [
                [
@@ -28,11 +22,10 @@
                   "Blog",
                   12
                ]
-            ],
-            "name" : "001"
+            ]
          },
          {
-            "name" : "002",
+            "id" : "002",
             "data" : [
                [
                   "Perl",
@@ -47,9 +40,10 @@
                   10
                ]
             ],
-            "id" : "002"
+            "name" : "002"
          },
          {
+            "id" : "003",
             "data" : [
                [
                   "Perl",
@@ -64,11 +58,9 @@
                   9
                ]
             ],
-            "name" : "003",
-            "id" : "003"
+            "name" : "003"
          },
          {
-            "id" : "004",
             "data" : [
                [
                   "Perl",
@@ -83,11 +75,12 @@
                   10
                ]
             ],
+            "id" : "004",
             "name" : "004"
          },
          {
-            "id" : "005",
             "name" : "005",
+            "id" : "005",
             "data" : [
                [
                   "Perl",
@@ -104,8 +97,6 @@
             ]
          },
          {
-            "id" : "006",
-            "name" : "006",
             "data" : [
                [
                   "Perl",
@@ -119,7 +110,9 @@
                   "Blog",
                   7
                ]
-            ]
+            ],
+            "id" : "006",
+            "name" : "006"
          },
          {
             "id" : "007",
@@ -140,6 +133,7 @@
             "name" : "007"
          },
          {
+            "id" : "008",
             "data" : [
                [
                   "Perl",
@@ -154,8 +148,7 @@
                   12
                ]
             ],
-            "name" : "008",
-            "id" : "008"
+            "name" : "008"
          },
          {
             "id" : "009",
@@ -177,7 +170,6 @@
          },
          {
             "id" : "010",
-            "name" : "010",
             "data" : [
                [
                   "Perl",
@@ -191,11 +183,11 @@
                   "Blog",
                   11
                ]
-            ]
+            ],
+            "name" : "010"
          },
          {
             "id" : "011",
-            "name" : "011",
             "data" : [
                [
                   "Perl",
@@ -209,7 +201,8 @@
                   "Blog",
                   10
                ]
-            ]
+            ],
+            "name" : "011"
          },
          {
             "data" : [
@@ -226,11 +219,11 @@
                   11
                ]
             ],
-            "name" : "012",
-            "id" : "012"
+            "id" : "012",
+            "name" : "012"
          },
          {
-            "name" : "013",
+            "id" : "013",
             "data" : [
                [
                   "Perl",
@@ -245,7 +238,7 @@
                   13
                ]
             ],
-            "id" : "013"
+            "name" : "013"
          },
          {
             "data" : [
@@ -262,12 +255,11 @@
                   15
                ]
             ],
-            "name" : "014",
-            "id" : "014"
+            "id" : "014",
+            "name" : "014"
          },
          {
             "id" : "015",
-            "name" : "015",
             "data" : [
                [
                   "Perl",
@@ -281,7 +273,8 @@
                   "Blog",
                   15
                ]
-            ]
+            ],
+            "name" : "015"
          },
          {
             "id" : "016",
@@ -303,6 +296,7 @@
          },
          {
             "name" : "017",
+            "id" : "017",
             "data" : [
                [
                   "Perl",
@@ -316,11 +310,11 @@
                   "Blog",
                   12
                ]
-            ],
-            "id" : "017"
+            ]
          },
          {
             "name" : "018",
+            "id" : "018",
             "data" : [
                [
                   "Perl",
@@ -334,11 +328,11 @@
                   "Blog",
                   14
                ]
-            ],
-            "id" : "018"
+            ]
          },
          {
             "name" : "019",
+            "id" : "019",
             "data" : [
                [
                   "Perl",
@@ -352,11 +346,11 @@
                   "Blog",
                   13
                ]
-            ],
-            "id" : "019"
+            ]
          },
          {
             "name" : "020",
+            "id" : "020",
             "data" : [
                [
                   "Perl",
@@ -370,8 +364,7 @@
                   "Blog",
                   13
                ]
-            ],
-            "id" : "020"
+            ]
          },
          {
             "data" : [
@@ -388,8 +381,8 @@
                   10
                ]
             ],
-            "name" : "021",
-            "id" : "021"
+            "id" : "021",
+            "name" : "021"
          },
          {
             "data" : [
@@ -406,10 +399,11 @@
                   10
                ]
             ],
-            "name" : "022",
-            "id" : "022"
+            "id" : "022",
+            "name" : "022"