- Added solutions by Cheok-Yin Fung.

23 files changed, 2304 insertions, 2264 deletions

diff --git a/challenge-286/cheok-yin-fung/perl/ch-2.pl b/challenge-286/cheok-yin-fung/perl/ch-2.pl
new file mode 100755
index 0000000000..5560a10d60
--- /dev/null
+++ b/challenge-286/cheok-yin-fung/perl/ch-2.pl
@@ -0,0 +1,25 @@
+# The Weekly Challenge 286
+# Task 2 Order Game
+use v5.30;
+use warnings;
+use List::Util qw/max min pairs/;
+
+sub og {
+    my @ints = $_[0]->@*;
+    my @arr = @ints;
+    while (scalar @arr != 1) {
+        @arr = pairs @arr;
+        foreach my $i (0..$#arr) {
+            print(($i%2 ? "max" : "min")."(".$arr[$i]->[0].",".$arr[$i]->[1].")");
+            $arr[$i] = $i % 2 ? (max $arr[$i]->@*) : (min $arr[$i]->@*);
+            say "=". $arr[$i];
+        }
+        say "";
+    }
+    return $arr[0];
+}
+
+use Test::More tests=>3;
+ok og([2,1,4,5,6,3,0,2])==1;
+ok og([0,5,3,2])==0;
+ok og([9, 2, 1, 4, 5, 6, 0, 7, 3, 1, 3, 5, 7, 9, 0, 8])==2;
diff --git a/stats/pwc-current.json b/stats/pwc-current.json
index 41ab2b4eb0..693177d018 100644
--- a/stats/pwc-current.json
+++ b/stats/pwc-current.json
@@ -1,36 +1,29 @@
 {
-   "subtitle" : {
-      "text" : "[Champions: 13] Last updated at 2024-09-10 08:04:16 GMT"
-   },
    "chart" : {
       "type" : "column"
    },
-   "plotOptions" : {
-      "series" : {
-         "borderWidth" : 0,
-         "dataLabels" : {
-            "format" : "{point.y}",
-            "enabled" : 1
-         }
-      }
-   },
    "series" : [
       {
-         "colorByPoint" : 1,
+         "name" : "The Weekly Challenge - 286",
          "data" : [
             {
+               "y" : 1,
                "drilldown" : "Alexander Karelas",
-               "name" : "Alexander Karelas",
+               "name" : "Alexander Karelas"
+            },
+            {
+               "name" : "Cheok-Yin Fung",
+               "drilldown" : "Cheok-Yin Fung",
                "y" : 1
             },
             {
                "drilldown" : "E. Choroba",
-               "name" : "E. Choroba",
-               "y" : 2
+               "y" : 2,
+               "name" : "E. Choroba"
             },
             {
-               "drilldown" : "Feng Chang",
                "y" : 2,
+               "drilldown" : "Feng Chang",
                "name" : "Feng Chang"
             },
             {
@@ -39,9 +32,9 @@
                "drilldown" : "Kjetil Skotheim"
             },
             {
-               "name" : "Laurent Rosenfeld",
                "y" : 3,
-               "drilldown" : "Laurent Rosenfeld"
+               "drilldown" : "Laurent Rosenfeld",
+               "name" : "Laurent Rosenfeld"
             },
             {
                "name" : "Niels van Dijke",
@@ -49,29 +42,29 @@
                "drilldown" : "Niels van Dijke"
             },
             {
-               "drilldown" : "Packy Anderson",
+               "name" : "Packy Anderson",
                "y" : 5,
-               "name" : "Packy Anderson"
+               "drilldown" : "Packy Anderson"
             },
             {
-               "name" : "Peter Campbell Smith",
+               "drilldown" : "Peter Campbell Smith",
                "y" : 3,
-               "drilldown" : "Peter Campbell Smith"
+               "name" : "Peter Campbell Smith"
             },
             {
-               "y" : 2,
                "name" : "Peter Meszaros",
-               "drilldown" : "Peter Meszaros"
+               "drilldown" : "Peter Meszaros",
+               "y" : 2
             },
             {
-               "y" : 2,
                "name" : "Peter Pentchev",
+               "y" : 2,
                "drilldown" : "Peter Pentchev"
             },
             {
+               "y" : 4,
                "drilldown" : "Thomas Kohler",
-               "name" : "Thomas Kohler",
-               "y" : 4
+               "name" : "Thomas Kohler"
             },
             {
                "drilldown" : "Torgny Lyon",
@@ -84,49 +77,50 @@
                "name" : "W. Luis Mochan"
             }
          ],
-         "name" : "The Weekly Challenge - 286"
+         "colorByPoint" : 1
       }
    ],
-   "xAxis" : {
-      "type" : "category"
-   },
-   "title" : {
-      "text" : "The Weekly Challenge - 286"
-   },
-   "legend" : {
-      "enabled" : 0
-   },
    "drilldown" : {
       "series" : [
          {
+            "id" : "Alexander Karelas",
             "data" : [
                [
                   "Perl",
                   1
                ]
             ],
-            "id" : "Alexander Karelas",
             "name" : "Alexander Karelas"
          },
          {
-            "name" : "E. Choroba",
+            "id" : "Cheok-Yin Fung",
+            "name" : "Cheok-Yin Fung",
+            "data" : [
+               [
+                  "Perl",
+                  1
+               ]
+            ]
+         },
+         {
             "id" : "E. Choroba",
             "data" : [
                [
                   "Perl",
                   2
                ]
-            ]
+            ],
+            "name" : "E. Choroba"
          },
          {
-            "name" : "Feng Chang",
-            "id" : "Feng Chang",
             "data" : [
                [
                   "Raku",
                   2
                ]
-            ]
+            ],
+            "name" : "Feng Chang",
+            "id" : "Feng Chang"
          },
          {
             "data" : [
@@ -135,12 +129,11 @@
                   2
                ]
             ],
-            "id" : "Kjetil Skotheim",
-            "name" : "Kjetil Skotheim"
+            "name" : "Kjetil Skotheim",
+            "id" : "Kjetil Skotheim"
          },
          {
             "name" : "Laurent Rosenfeld",
-            "id" : "Laurent Rosenfeld",
             "data" : [
                [
                   "Perl",
@@ -154,20 +147,22 @@
                   "Blog",
                   1
                ]
-            ]
+            ],
+            "id" : "Laurent Rosenfeld"
          },
          {
+            "id" : "Niels van Dijke",
             "name" : "Niels van Dijke",
             "data" : [
                [
                   "Perl",
                   2
                ]
-            ],
-            "id" : "Niels van Dijke"
+            ]
          },
          {
             "id" : "Packy Anderson",
+            "name" : "Packy Anderson",
             "data" : [
                [
                   "Perl",
@@ -181,8 +176,7 @@
                   "Blog",
                   1
                ]
-            ],
-            "name" : "Packy Anderson"
+            ]
          },
          {
             "data" : [
@@ -195,18 +189,18 @@
                   1
                ]
             ],
-            "id" : "Peter Campbell Smith",
-            "name" : "Peter Campbell Smith"
+            "name" : "Peter Campbell Smith",
+            "id" : "Peter Campbell Smith"
          },
          {
-            "name" : "Peter Meszaros",
+            "id" : "Peter Meszaros",
             "data" : [
                [
                   "Perl",
                   2
                ]
             ],
-            "id" : "Peter Meszaros"
+            "name" : "Peter Meszaros"
          },
          {
             "id" : "Peter Pentchev",
@@ -219,6 +213,7 @@
             "name" : "Peter Pentchev"
          },
          {
+            "id" : "Thomas Kohler",
             "name" : "Thomas Kohler",
             "data" : [
                [
@@ -229,12 +224,10 @@
                   "Blog",
                   2
                ]
-            ],
-            "id" : "Thomas Kohler"
+            ]
          },
          {
             "name" : "Torgny Lyon",
-            "id" : "Torgny Lyon",
             "data" : [
                [
                   "Perl",
@@ -244,10 +237,10 @@
                   "Blog",
                   1
                ]
-            ]
+            ],
+            "id" : "Torgny Lyon"
          },
          {
-            "name" : "W. Luis Mochan",
             "data" : [
                [
                   "Perl",
@@ -258,14 +251,36 @@
                   1
                ]
             ],
+            "name" : "W. Luis Mochan",
             "id" : "W. Luis Mochan"
          }
       ]
    },
+   "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/>"
+   },
+   "title" : {
+      "text" : "The Weekly Challenge - 286"
+   },
+   "subtitle" : {
+      "text" : "[Champions: 14] Last updated at 2024-09-10 09:03:13 GMT"
+   },
+   "plotOptions" : {
+      "series" : {
+         "borderWidth" : 0,
+         "dataLabels" : {
+            "format" : "{point.y}",
+            "enabled" : 1
+         }
+      }
+   },
+   "xAxis" : {
+      "type" : "category"
    },
    "yAxis" : {
       "title" : {
diff --git a/stats/pwc-language-breakdown-2019.json b/stats/pwc-language-breakdown-2019.json
index fdfacb5341..0f668f3b8a 100644
--- a/stats/pwc-language-breakdown-2019.json
+++ b/stats/pwc-language-breakdown-2019.json
@@ -1,25 +1,44 @@
 {
+   "subtitle" : {
+      "text" : "Click the columns to drilldown the language breakdown. Last updated at 2024-09-10 09:03:13 GMT"
+   },
+   "plotOptions" : {
+      "series" : {
+         "borderWidth" : 0,
+         "dataLabels" : {
+            "format" : "{point.y}",
+            "enabled" : 1
+         }
+      }
+   },
+   "yAxis" : {
+      "title" : {
+         "text" : "Total Solutions"
+      }
+   },
    "xAxis" : {
       "type" : "category"
    },
+   "chart" : {
+      "type" : "column"
+   },
    "series" : [
       {
-         "name" : "The Weekly Challenge Languages",
          "data" : [
             {
                "y" : 80,
-               "name" : "041",
-               "drilldown" : "041"
+               "drilldown" : "041",
+               "name" : "041"
             },
             {
-               "name" : "040",
                "y" : 77,
-               "drilldown" : "040"
+               "drilldown" : "040",
+               "name" : "040"
             },
             {
-               "drilldown" : "039",
+               "name" : "039",
                "y" : 68,
-               "name" : "039"
+               "drilldown" : "039"
             },
             {
                "name" : "038",
@@ -27,19 +46,19 @@
                "drilldown" : "038"
             },
             {
-               "y" : 70,
                "name" : "037",
-               "drilldown" : "037"
+               "drilldown" : "037",
+               "y" : 70
             },
             {
-               "name" : "036",
                "y" : 70,
-               "drilldown" : "036"
+               "drilldown" : "036",
+               "name" : "036"
             },
             {
                "name" : "035",
-               "y" : 68,
-               "drilldown" : "035"
+               "drilldown" : "035",
+               "y" : 68
             },
             {
                "drilldown" : "034",
@@ -48,8 +67,8 @@
             },
             {
                "drilldown" : "033",
-               "name" : "033",
-               "y" : 113
+               "y" : 113,
+               "name" : "033"
             },
             {
                "name" : "032",
@@ -57,8 +76,8 @@
                "drilldown" : "032"
             },
             {
-               "drilldown" : "031",
                "y" : 93,
+               "drilldown" : "031",
                "name" : "031"
             },
             {
@@ -67,24 +86,24 @@
                "drilldown" : "030"
             },
             {
-               "drilldown" : "029",
                "name" : "029",
-               "y" : 83
+               "y" : 83,
+               "drilldown" : "029"
             },
             {
                "name" : "028",
-               "y" : 82,
-               "drilldown" : "028"
+               "drilldown" : "028",
+               "y" : 82
             },
             {
-               "y" : 64,
                "name" : "027",
+               "y" : 64,
                "drilldown" : "027"
             },
             {
-               "drilldown" : "026",
                "name" : "026",
-               "y" : 75
+               "y" : 75,
+               "drilldown" : "026"
             },
             {
                "drilldown" : "025",
@@ -92,19 +111,19 @@
                "name" : "025"
             },
             {
-               "drilldown" : "024",
+               "name" : "024",
                "y" : 77,
-               "name" : "024"
+               "drilldown" : "024"
             },
             {
-               "drilldown" : "023",
+               "name" : "023",
                "y" : 88,
-               "name" : "023"
+               "drilldown" : "023"
             },
             {
+               "y" : 72,
                "drilldown" : "022",
-               "name" : "022",
-               "y" : 72
+               "name" : "022"
             },
             {
                "name" : "021",
@@ -112,13 +131,13 @@
                "drilldown" : "021"
             },
             {
-               "drilldown" : "020",
                "y" : 100,
+               "drilldown" : "020",
                "name" : "020"
             },
             {
-               "drilldown" : "019",
                "name" : "019",
+               "drilldown" : "019",
                "y" : 101
             },
             {
@@ -127,29 +146,29 @@
                "drilldown" : "018"
             },
             {
-               "name" : "017",
+               "drilldown" : "017",
                "y" : 83,
-               "drilldown" : "017"
+               "name" : "017"
             },
             {
                "drilldown" : "016",
-               "name" : "016",
-               "y" : 75
+               "y" : 75,
+               "name" : "016"
             },
             {
                "y" : 95,
-               "name" : "015",
-               "drilldown" : "015"
+               "drilldown" : "015",
+               "name" : "015"
             },
             {
                "drilldown" : "014",
-               "name" : "014",
-               "y" : 98
+               "y" : 98,
+               "name" : "014"
             },
             {
                "name" : "013",
-               "y" : 85,
-               "drilldown" : "013"
+               "drilldown" : "013",
+               "y" : 85
             },
             {
                "drilldown" : "012",
@@ -157,76 +176,68 @@
                "name" : "012"
             },
             {
-               "name" : "011",
                "y" : 86,
-               "drilldown" : "011"
+               "drilldown" : "011",
+               "name" : "011"
             },
             {
+               "y" : 69,
                "drilldown" : "010",
-               "name" : "010",
-               "y" : 69
+               "name" : "010"
             },
             {
-               "drilldown" : "009",
+               "name" : "009",
                "y" : 79,
-               "name" : "009"
+               "drilldown" : "009"
             },
             {
-               "drilldown" : "008",
                "y" : 82,
+               "drilldown" : "008",
                "name" : "008"
             },
             {
-               "drilldown" : "007",
+               "name" : "007",
                "y" : 71,
-               "name" : "007"
+               "drilldown" : "007"
             },
             {
-               "drilldown" : "006",
                "name" : "006",
+               "drilldown" : "006",
                "y" : 63
             },
             {
+               "y" : 82,
                "drilldown" : "005",
-               "name" : "005",
-               "y" : 82
+               "name" : "005"
             },
             {
-               "drilldown" : "004",
+               "name" : "004",
                "y" : 106,
-               "name" : "004"
+               "drilldown" : "004"
             },
             {
-               "name" : "003",
                "y" : 91,
-               "drilldown" : "003"
+               "drilldown" : "003",
+               "name" : "003"
             },
             {
-               "drilldown" : "002",
                "name" : "002",
-               "y" : 133
+               "y" : 133,
+               "drilldown" : "002"
             },
             {
-               "y" : 165,
                "name" : "001",
+               "y" : 165,
                "drilldown" : "001"
             }
          ],
+         "name" : "The Weekly Challenge Languages",
          "colorByPoint" : "true"
       }
    ],
-   "title" : {
-      "text" : "The Weekly Challenge Language"
-   },
-   "tooltip" : {
-      "pointFormat" : "<span style=\"color:{point.color}\">Challenge {point.name}</span>: <b>{point.y:f}</b><br/>",
-      "headerFormat" : "<span style=\"font-size:11px\"></span>",
-      "followPointer" : "true"
-   },
    "drilldown" : {
       "series" : [
          {
-            "name" : "041",
             "id" : "041",
             "data" : [
                [
@@ -241,10 +252,10 @@
                   "Blog",
                   9
                ]
-            ]
+            ],
+            "name" : "041"
          },
          {
-            "id" : "040",
             "data" : [
                [
                   "Perl",
@@ -259,9 +270,11 @@
                   10
                ]
             ],
-            "name" : "040"
+            "name" : "040",
+            "id" : "040"
          },
          {
+            "id" : "039",
             "data" : [
                [
                   "Perl",
@@ -276,7 +289,6 @@
                   12
                ]
             ],
-            "id" : "039",
             "name" : "039"
          },
          {
@@ -294,10 +306,12 @@
                   12
                ]
             ],
-            "id" : "038",
-            "name" : "038"
+            "name" : "038",
+            "id" : "038"
          },
          {
+            "id" : "037",
+            "name" : "037",
             "data" : [
                [
                   "Perl",
@@ -311,9 +325,7 @@
                   "Blog",
                   9
                ]
-            ],
-            "id" : "037",
-            "name" : "037"
+            ]
          },
          {
             "id" : "036",
@@ -352,7 +364,6 @@
             "name" : "035"
          },
          {
-            "name" : "034",
             "data" : [
                [
                   "Perl",
@@ -367,6 +378,7 @@
                   11
                ]
             ],
+            "name" : "034",
             "id" : "034"
          },
          {
@@ -388,8 +400,8 @@
             "name" : "033"
          },
          {
-            "name" : "032",
             "id" : "032",
+            "name" : "032",
             "data" : [
                [
                   "Perl",
@@ -406,8 +418,8 @@
             ]
          },
          {
-            "name" : "031",
             "id" : "031",
+            "name" : "031",
             "data" : [
                [
                   "Perl",
@@ -424,8 +436,8 @@
             ]
          },
          {
-            "name" : "030",
             "id" : "030",
+            "name" : "030",
             "data" : [
                [
                   "Perl",
@@ -442,7 +454,7 @@
             ]
          },
          {
-            "id" : "029",
+            "name" : "029",
             "data" : [
                [
                   "Perl",
@@ -457,10 +469,10 @@
                   12
                ]
             ],
-            "name" : "029"
+            "id" : "029"
          },
          {
-            "name" : "028",
+            "id" : "028",
             "data" : [
                [
                   "Perl",
@@ -475,10 +487,10 @@
                   9
                ]
             ],
-            "id" : "028"
+            "name" : "028"
          },
          {
-            "id" : "027",
+            "name" : "027",
             "data" : [
                [
                   "Perl",
@@ -493,10 +505,10 @@
                   9
                ]
             ],
-            "name" : "027"
+            "id" : "027"
          },
          {
-            "name" : "026",
+            "id" : "026",
             "data" : [
                [
                   "Perl",
@@ -511,10 +523,9 @@
                   10
                ]
             ],
-            "id" : "026"
+            "name" : "026"
          },
          {
-            "name" : "025",
             "data" : [
                [
                   "Perl",
@@ -529,10 +540,11 @@
                   12
                ]
             ],
+            "name" : "025",
             "id" : "025"
          },
          {
-            "id" : "024",
+            "name" : "024",
             "data" : [
                [
                   "Perl",
@@ -547,10 +559,9 @@
                   11
                ]
             ],
-            "name" : "024"
+            "id" : "024"
          },
          {
-            "id" : "023",
             "data" : [
                [
                   "Perl",
@@ -565,10 +576,10 @@
                   12
                ]
             ],
-            "name" : "023"
+            "name" : "023",
+            "id" : "023"
          },
          {
-            "name" : "022",
             "id" : "022",
             "data" : [
                [
@@ -583,11 +594,10 @@
                   "Blog",
                   10
                ]
-            ]
+            ],
+            "name" : "022"
          },
          {
-            "name" : "021",
-            "id" : "021",
             "data" : [
                [
                   "Perl",
@@ -601,7 +611,9 @@
                   "Blog",
                   10
                ]
-            ]
+            ],
+            "name" : "021",
+            "id" : "021"
          },
          {
             "id" : "020",
@@ -622,6 +634,7 @@
             "name" : "020"
          },
          {
+            "id" : "019",
             "name" : "019",
             "data" : [
                [
@@ -636,8 +649,7 @@
                   "Blog",
                   13
                ]
-            ],
-            "id" : "019"
+            ]
          },
          {
             "id" : "018",
@@ -659,7 +671,6 @@
          },
          {
             "name" : "017",
-            "id" : "017",
             "data" : [
                [
                   "Perl",
@@ -673,7 +684,8 @@
                   "Blog",
                   12
                ]
-            ]
+            ],
+            "id" : "017"
          },
          {
             "id" : "016",
@@ -694,7 +706,6 @@
             "name" : "016"
          },
          {
-            "id" : "015",
             "data" : [
                [
                   "Perl",
@@ -709,11 +720,12 @@
                   15
                ]
             ],
-            "name" : "015"
+            "name" : "015",
+            "id" : "015"
          },
          {
-            "name" : "014",
             "id" : "014",
+            "name" : "014",
             "data" : [
                [
                   "Perl",
@@ -730,6 +742,7 @@
             ]
          },
          {
+            "name" : "013",
             "data" : [
                [
                   "Perl",
@@ -744,10 +757,10 @@
                   13
                ]
             ],
-            "id" : "013",
-            "name" : "013"
+            "id" : "013"
          },
          {
+            "id" : "012",
             "name" : "012",
             "data" : [
                [
@@ -762,10 +775,11 @@
                   "Blog",
                   11
                ]
-            ],
-            "id" : "012"
+            ]
          },
          {
+            "id" : "011",
+            "name" : "011",
             "data" : [
                [
                   "Perl",
@@ -779,13 +793,9 @@
                   "Blog",
                   10
                ]
-            ],
-            "id" : "011",
-            "name" : "011"
+            ]
          },
          {
-            "name" : "010",
-            "id" : "010",
             "data" : [
                [
                   "Perl",
@@ -799,7 +809,9 @@
                   "Blog",
                   11
                ]
-            ]
+            ],
+            "name" : "010",
+            "id" : "010"
          },
          {
             "name" : "009",
@@ -820,8 +832,6 @@
             "id" : "009"
          },
          {
-            "name" : "008",
-            "id" : "008",
             "data" : [
                [
                   "Perl",
@@ -835,9 +845,12 @@
                   "Blog",
                   12
                ]
-            ]
+            ],
+            "name" : "008",
+            "id" : "008"
          },
          {
+            "name" : "007",
             "data" : [
                [