- Added solutions by Eric Cheung.

- Added solutions by Simon Green.
- Added solutions by PokGoPun.
- Added solutions by Niels van Dijke.
- Added solutions by Tymoteusz Moryto.
- Added solutions by Feng Chang.

27 files changed, 3404 insertions, 3249 deletions

diff --git a/challenge-284/eric-cheung/python/ch-1.py b/challenge-284/eric-cheung/python/ch-1.py
new file mode 100755
index 0000000000..a692fad3bf
--- /dev/null
+++ b/challenge-284/eric-cheung/python/ch-1.py
@@ -0,0 +1,11 @@
+

+## arrInts = [2, 2, 3, 4]  ## Example 1

+## arrInts = [1, 2, 2, 3, 3, 3]  ## Example 2

+arrInts = [1, 1, 1, 3]  ## Example 3

+

+arrLucky = [nLoop for nLoop in set(arrInts) if arrInts.count(nLoop) == nLoop]

+

+if len(arrLucky) == 0:

+    print (-1)

+else:

+    print (max(arrLucky))

diff --git a/challenge-284/eric-cheung/python/ch-2.py b/challenge-284/eric-cheung/python/ch-2.py
new file mode 100755
index 0000000000..9230393f83
--- /dev/null
+++ b/challenge-284/eric-cheung/python/ch-2.py
@@ -0,0 +1,24 @@
+

+## Example 1

+## arrList_01 = [2, 3, 9, 3, 1, 4, 6, 7, 2, 8, 5]

+## arrList_02 = [2, 1, 4, 3, 5, 6]

+

+## Example 2

+## arrList_01 = [3, 3, 4, 6, 2, 4, 2, 1, 3]

+## arrList_02 = [1, 3, 2]

+

+## Example 3

+arrList_01 = [3, 0, 5, 0, 2, 1, 4, 1, 1]

+arrList_02 = [1, 0, 3, 2]

+

+arrOutput = []

+

+## Contain

+for nLoop in arrList_02:

+    arrOutput = arrOutput + [nLoop] * arrList_01.count(nLoop)

+

+## Miss

+for nLoop in [rLoop for rLoop in set(arrList_01) if rLoop not in arrList_02]:

+    arrOutput = arrOutput + [nLoop] * arrList_01.count(nLoop)

+

+print (arrOutput)

diff --git a/challenge-284/perlboy1967/perl/ch1.pl b/challenge-284/perlboy1967/perl/ch-1.pl
index d747e83e42..d747e83e42 100755
--- a/challenge-284/perlboy1967/perl/ch1.pl
+++ b/challenge-284/perlboy1967/perl/ch-1.pl
diff --git a/challenge-284/perlboy1967/perl/ch2.pl b/challenge-284/perlboy1967/perl/ch-2.pl
index 2d7eee15df..2d7eee15df 100755
--- a/challenge-284/perlboy1967/perl/ch2.pl
+++ b/challenge-284/perlboy1967/perl/ch-2.pl
diff --git a/stats/pwc-challenge-283.json b/stats/pwc-challenge-283.json
new file mode 100644
index 0000000000..83999b9db6
--- /dev/null
+++ b/stats/pwc-challenge-283.json
@@ -0,0 +1,657 @@
+{
+   "subtitle" : {
+      "text" : "[Champions: 35] Last updated at 2024-08-26 12:36:28 GMT"
+   },
+   "plotOptions" : {
+      "series" : {
+         "borderWidth" : 0,
+         "dataLabels" : {
+            "format" : "{point.y}",
+            "enabled" : 1
+         }
+      }
+   },
+   "tooltip" : {
+      "followPointer" : 1,
+      "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/>"
+   },
+   "drilldown" : {
+      "series" : [
+         {
+            "id" : "Ali Moradi",
+            "name" : "Ali Moradi",
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ],
+               [
+                  "Raku",
+                  2
+               ],
+               [
+                  "Blog",
+                  1
+               ]
+            ]
+         },
+         {
+            "name" : "Andrew Schneider",
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ]
+            ],
+            "id" : "Andrew Schneider"
+         },
+         {
+            "data" : [
+               [
+                  "Raku",
+                  2
+               ],
+               [
+                  "Blog",
+                  1
+               ]
+            ],
+            "name" : "Arne Sommer",
+            "id" : "Arne Sommer"
+         },
+         {
+            "name" : "Athanasius",
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ],
+               [
+                  "Raku",
+                  2
+               ]
+            ],
+            "id" : "Athanasius"
+         },
+         {
+            "data" : [
+               [
+                  "Raku",
+                  1
+               ]
+            ],
+            "name" : "BarrOff",
+            "id" : "BarrOff"
+         },
+         {
+            "id" : "Bob Lied",
+            "name" : "Bob Lied",
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ]
+            ]
+         },
+         {
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ]
+            ],
+            "name" : "Cheok-Yin Fung",
+            "id" : "Cheok-Yin Fung"
+         },
+         {
+            "id" : "Dave Jacoby",
+            "name" : "Dave Jacoby",
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ]
+            ]
+         },
+         {
+            "id" : "David Ferrone",
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ]
+            ],
+            "name" : "David Ferrone"
+         },
+         {
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ]
+            ],
+            "name" : "E. Choroba",
+            "id" : "E. Choroba"
+         },
+         {
+            "data" : [
+               [
+                  "Raku",
+                  2
+               ]
+            ],
+            "name" : "Feng Chang",
+            "id" : "Feng Chang"
+         },
+         {
+            "name" : "Jaldhar H. Vyas",
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ],
+               [
+                  "Raku",
+                  2
+               ],
+               [
+                  "Blog",
+                  1
+               ]
+            ],
+            "id" : "Jaldhar H. Vyas"
+         },
+         {
+            "data" : [
+               [
+                  "Raku",
+                  2
+               ]
+            ],
+            "name" : "Jan Krnavek",
+            "id" : "Jan Krnavek"
+         },
+         {
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ],
+               [
+                  "Blog",
+                  1
+               ]
+            ],
+            "name" : "Jorg Sommrey",
+            "id" : "Jorg Sommrey"
+         },
+         {
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ]
+            ],
+            "name" : "Kjetil Skotheim",
+            "id" : "Kjetil Skotheim"
+         },
+         {
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ],
+               [
+                  "Raku",
+                  2
+               ],
+               [
+                  "Blog",
+                  2
+               ]
+            ],
+            "name" : "Laurent Rosenfeld",
+            "id" : "Laurent Rosenfeld"
+         },
+         {
+            "id" : "Mariano Ortega",
+            "name" : "Mariano Ortega",
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ]
+            ]
+         },
+         {
+            "name" : "Mark Anderson",
+            "data" : [
+               [
+                  "Raku",
+                  2
+               ]
+            ],
+            "id" : "Mark Anderson"
+         },
+         {
+            "name" : "Matthew Neleigh",
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ]
+            ],
+            "id" : "Matthew Neleigh"
+         },
+         {
+            "name" : "Matthias Muth",
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ],
+               [
+                  "Blog",
+                  1
+               ]
+            ],
+            "id" : "Matthias Muth"
+         },
+         {
+            "id" : "Nelo Tovar",
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ]
+            ],
+            "name" : "Nelo Tovar"
+         },
+         {
+            "id" : "Niels van Dijke",
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ]
+            ],
+            "name" : "Niels van Dijke"
+         },
+         {
+            "id" : "Packy Anderson",
+            "name" : "Packy Anderson",
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ],
+               [
+                  "Raku",
+                  2
+               ],
+               [
+                  "Blog",
+                  1
+               ]
+            ]
+         },
+         {
+            "id" : "Paulo Custodio",
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ]
+            ],
+            "name" : "Paulo Custodio"
+         },
+         {
+            "id" : "Peter Campbell Smith",
+            "name" : "Peter Campbell Smith",
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ],
+               [
+                  "Blog",
+                  1
+               ]
+            ]
+         },
+         {
+            "id" : "Peter Meszaros",
+            "name" : "Peter Meszaros",
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ]
+            ]
+         },
+         {
+            "id" : "Reinier Maliepaard",
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ],
+               [
+                  "Blog",
+                  1
+               ]
+            ],
+            "name" : "Reinier Maliepaard"
+         },
+         {
+            "id" : "Robbie Hatley",
+            "name" : "Robbie Hatley",
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ],
+               [
+                  "Blog",
+                  1
+               ]
+            ]
+         },
+         {
+            "id" : "Robert Ransbottom",
+            "name" : "Robert Ransbottom",
+            "data" : [
+               [
+                  "Raku",
+                  2
+               ]
+            ]
+         },
+         {
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ],
+               [
+                  "Raku",
+                  2
+               ],
+               [
+                  "Blog",
+                  1
+               ]
+            ],
+            "name" : "Roger Bell_West",
+            "id" : "Roger Bell_West"
+         },
+         {
+            "name" : "Simon Green",
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ],
+               [
+                  "Blog",
+                  1
+               ]
+            ],
+            "id" : "Simon Green"
+         },
+         {
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ],
+               [
+                  "Blog",
+                  2
+               ]
+            ],
+            "name" : "Thomas Kohler",
+            "id" : "Thomas Kohler"
+         },
+         {
+            "name" : "Ulrich Rieke",
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ],
+               [
+                  "Raku",
+                  2
+               ]
+            ],
+            "id" : "Ulrich Rieke"
+         },
+         {
+            "id" : "W. Luis Mochan",
+            "name" : "W. Luis Mochan",
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ],
+               [
+                  "Blog",
+                  1
+               ]
+            ]
+         },
+         {
+            "name" : "Wanderdoc",
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ]
+            ],
+            "id" : "Wanderdoc"
+         }
+      ]
+   },
+   "series" : [
+      {
+         "name" : "The Weekly Challenge - 283",
+         "data" : [
+            {
+               "drilldown" : "Ali Moradi",
+               "y" : 5,
+               "name" : "Ali Moradi"
+            },
+            {
+               "name" : "Andrew Schneider",
+               "y" : 2,
+               "drilldown" : "Andrew Schneider"
+            },
+            {
+               "y" : 3,
+               "drilldown" : "Arne Sommer",
+               "name" : "Arne Sommer"
+            },
+            {
+               "name" : "Athanasius",
+               "y" : 4,
+               "drilldown" : "Athanasius"
+            },
+            {
+               "name" : "BarrOff",
+               "y" : 1,
+               "drilldown" : "BarrOff"
+            },
+            {
+               "y" : 2,
+               "drilldown" : "Bob Lied",
+               "name" : "Bob Lied"
+            },
+            {
+               "name" : "Cheok-Yin Fung",
+               "drilldown" : "Cheok-Yin Fung",
+               "y" : 2
+            },
+            {
+               "drilldown" : "Dave Jacoby",
+               "y" : 2,
+               "name" : "Dave Jacoby"
+            },
+            {
+               "name" : "David Ferrone",
+               "drilldown" : "David Ferrone",
+               "y" : 2
+            },
+            {
+               "name" : "E. Choroba",
+               "drilldown" : "E. Choroba",
+               "y" : 2
+            },
+            {
+               "y" : 2,
+               "drilldown" : "Feng Chang",
+               "name" : "Feng Chang"
+            },
+            {
+               "drilldown" : "Jaldhar H. Vyas",
+               "y" : 5,
+               "name" : "Jaldhar H. Vyas"
+            },
+            {
+               "y" : 2,
+               "drilldown" : "Jan Krnavek",
+               "name" : "Jan Krnavek"
+            },
+            {
+               "y" : 3,
+               "drilldown" : "Jorg Sommrey",
+               "name" : "Jorg Sommrey"
+            },
+            {
+               "y" : 2,
+               "drilldown" : "Kjetil Skotheim",
+               "name" : "Kjetil Skotheim"
+            },
+            {
+               "drilldown" : "Laurent Rosenfeld",
+               "y" : 6,
+               "name" : "Laurent Rosenfeld"
+            },
+            {
+               "name" : "Mariano Ortega",
+               "drilldown" : "Mariano Ortega",
+               "y" : 2
+            },
+            {
+               "name" : "Mark Anderson",
+               "y" : 2,
+               "drilldown" : "Mark Anderson"
+            },
+            {
+               "y" : 2,
+               "drilldown" : "Matthew Neleigh",
+               "name" : "Matthew Neleigh"
+            },
+            {
+               "name" : "Matthias Muth",
+               "y" : 3,
+               "drilldown" : "Matthias Muth"
+            },
+            {
+               "drilldown" : "Nelo Tovar",
+               "y" : 2,
+               "name" : "Nelo Tovar"
+            },
+            {
+               "name" : "Niels van Dijke",
+               "drilldown" : "Niels van Dijke",
+               "y" : 2
+            },
+            {
+               "y" : 5,
+               "drilldown" : "Packy Anderson",
+               "name" : "Packy Anderson"
+            },
+            {
+               "name" : "Paulo Custodio",
+               "y" : 2,
+               "drilldown" : "Paulo Custodio"
+            },
+            {
+               "drilldown" : "Peter Campbell Smith",
+               "y" : 3,
+               "name" : "Peter Campbell Smith"
+            },
+            {
+               "drilldown" : "Peter Meszaros",
+               "y" : 2,
+               "name" : "Peter Meszaros"
+            },
+            {
+               "name" : "Reinier Maliepaard",
+               "drilldown" : "Reinier Maliepaard",
+               "y" : 3
+            },
+            {
+               "name" : "Robbie Hatley",
+               "y" : 3,
+               "drilldown" : "Robbie Hatley"
+            },
+            {
+               "name" : "Robert Ransbottom",
+               "y" : 2,
+               "drilldown" : "Robert Ransbottom"
+            },
+            {
+               "name" : "Roger Bell_West",
+               "drilldown" : "Roger Bell_West",
+               "y" : 5
+            },
+            {
+               "y" : 3,
+               "drilldown" : "Simon Green",
+               "name" : "Simon Green"
+            },
+            {
+               "y" : 4,
+               "drilldown" : "Thomas Kohler",
+               "name" : "Thomas Kohler"
+            },
+            {
+               "y" : 4,
+               "drilldown" : "Ulrich Rieke",
+               "name" : "Ulrich Rieke"
+            },
+            {
+               "name" : "W. Luis Mochan",
+               "y" : 3,
+               "drilldown" : "W. Luis Mochan"
+            },
+            {
+               "name" : "Wanderdoc",
+               "drilldown" : "Wanderdoc",
+               "y" : 2
+            }
+         ],
+         "colorByPoint" : 1
+      }
+   ],
+   "legend" : {
+      "enabled" : 0
+   },
+   "title" : {
+      "text" : "The Weekly Challenge - 283"
+   },
+   "yAxis" : {
+      "title" : {
+         "text" : "Total Solutions"
+      }
+   },
+   "chart" : {
+      "type" : "column"
+   },
+   "xAxis" : {
+      "type" : "category"
+   }
+}
diff --git a/stats/pwc-current.json b/stats/pwc-current.json
index 8186e854ec..b248e1e17c 100644
--- a/stats/pwc-current.json
+++ b/stats/pwc-current.json
@@ -1,638 +1,78 @@
 {
-   "xAxis" : {
-      "type" : "category"
+   "plotOptions" : {
+      "series" : {
+         "borderWidth" : 0,
+         "dataLabels" : {
+            "format" : "{point.y}",
+            "enabled" : 1
+         }
+      }
+   },
+   "subtitle" : {
+      "text" : "[Champions: 2] Last updated at 2024-08-26 12:36:39 GMT"
+   },
+   "series" : [
+      {
+         "name" : "The Weekly Challenge - 284",
+         "data" : [
+            {
+               "y" : 2,
+               "name" : "Feng Chang",
+               "drilldown" : "Feng Chang"
+            },
+            {
+               "y" : 2,
+               "name" : "Niels van Dijke",
+               "drilldown" : "Niels van Dijke"
+            }
+         ],
+         "colorByPoint" : 1
+      }
+   ],
+   "chart" : {
+      "type" : "column"
+   },
+   "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
    },
    "drilldown" : {
       "series" : [
          {
-            "id" : "Ali Moradi",
-            "name" : "Ali Moradi",
-            "data" : [
-               [
-                  "Perl",
-                  2
-               ],
-               [
-                  "Raku",
-                  2
-               ],
-               [
-                  "Blog",
-                  1
-               ]
-            ]
-         },
-         {
-            "name" : "Andrew Schneider",
-            "id" : "Andrew Schneider",
-            "data" : [
-               [
-                  "Perl",
-                  2
-               ]
-            ]
-         },
-         {
-            "name" : "Arne Sommer",
-            "id" : "Arne Sommer",
-            "data" : [
-               [
-                  "Raku",
-                  2
-               ],
-               [
-                  "Blog",
-                  1
-               ]
-            ]
-         },
-         {
-            "name" : "Athanasius",
-            "id" : "Athanasius",
-            "data" : [
-               [
-                  "Perl",
-                  2
-               ],
-               [
-                  "Raku",
-                  2
-               ]
-            ]
-         },
-         {
-            "data" : [
-               [
-                  "Raku",
-                  1
-               ]
-            ],
-            "name" : "BarrOff",
-            "id" : "BarrOff"
-         },
-         {
-            "data" : [
-               [
-                  "Perl",
-                  2
-               ]
-            ],
-            "id" : "Bob Lied",
-            "name" : "Bob Lied"
-         },
-         {
-            "name" : "Cheok-Yin Fung",
-            "id" : "Cheok-Yin Fung",
-            "data" : [
-               [
-                  "Perl",
-                  2
-               ]
-            ]
-         },
-         {
-            "data" : [
-               [
-                  "Perl",
-                  2
-               ]
-            ],
-            "id" : "Dave Jacoby",
-            "name" : "Dave Jacoby"
-         },
-         {
-            "name" : "David Ferrone",
-            "id" : "David Ferrone",
-            "data" : [
-               [
-                  "Perl",
-                  2
-               ]
-            ]
-         },
-         {
-            "data" : [
-               [
-                  "Perl",
-                  2
-               ]
-            ],
-            "id" : "E. Choroba",
-            "name" : "E. Choroba"
-         },
-         {
-            "data" : [
-               [
-                  "Raku",
-                  2
-               ]
-            ],
+            "id" : "Feng Chang",
             "name" : "Feng Chang",
-            "id" : "Feng Chang"
-         },
-         {
-            "data" : [
-               [
-                  "Perl",
-                  2
-               ],
-               [
-                  "Raku",
-                  2
-               ],
-               [
-                  "Blog",
-                  1
-               ]
-            ],
-            "id" : "Jaldhar H. Vyas",
-            "name" : "Jaldhar H. Vyas"
-         },
-         {
             "data" : [
                [
                   "Raku",
                   2
                ]
-            ],
-            "id" : "Jan Krnavek",
-            "name" : "Jan Krnavek"
-         },
-         {
-            "data" : [
-               [
-                  "Perl",
-                  2
-               ],
-               [
-                  "Blog",
-                  1
-               ]
-            ],
-            "name" : "Jorg Sommrey",
-            "id" : "Jorg Sommrey"
-         },
-         {
-            "id" : "Kjetil Skotheim",
-            "name" : "Kjetil Skotheim",
-            "data" : [
-               [
-                  "Perl",
-                  2
-               ]
             ]
          },
          {
-            "id" : "Laurent Rosenfeld",
-            "name" : "Laurent Rosenfeld",
-            "data" : [
-               [
-                  "Perl",
-                  2
-               ],
-               [
-                  "Raku",
-                  2
-               ],
-               [
-                  "Blog",
-                  2
-               ]
-            ]
-         },
-         {
-            "data" : [
-               [
-                  "Perl",
-                  2
-               ]
-            ],
-            "id" : "Mariano Ortega",
-            "name" : "Mariano Ortega"
-         },
-         {
-            "id" : "Mark Anderson",
-            "name" : "Mark Anderson",
-            "data" : [
-               [
-                  "Raku",
-                  2
-               ]
-            ]
-         },
-         {
-            "name" : "Matthew Neleigh",
-            "id" : "Matthew Neleigh",
-            "data" : [
-               [
-                  "Perl",
-                  2