- Added solutions by David Ferrone.

- Added solutions by Packy Anderson.
- Added solutions by Robbie Hatley.
- Added solutions by Jorg Sommrey.
- Added solutions by W. Luis Mochan.
- Added solutions by Laurent Rosenfeld.

18 files changed, 1969 insertions, 1876 deletions

diff --git a/challenge-256/laurent-rosenfeld/julia/ch-1.jl b/challenge-256/laurent-rosenfeld/julia/ch-1.jl
new file mode 100644
index 0000000000..56a23ae41e
--- /dev/null
+++ b/challenge-256/laurent-rosenfeld/julia/ch-1.jl
@@ -0,0 +1,22 @@
+using Printf
+
+function find_pairs(in)
+    nb_pairs = 0
+    for i in 1:size(in, 1)
+        for j in i+1:size(in, 1)
+            if in[i] == reverse(in[j])
+                nb_pairs += 1
+            end
+        end
+    end
+    return nb_pairs
+end
+
+tests = [ ["ab", "de", "ed", "bc"],
+          ["aa", "ba", "cd", "ed"],
+          ["uv", "qp", "st", "vu", "mn", "pq"] ]
+
+for test in tests
+    @printf "%-40s => " "$test"
+    println(find_pairs(test))
+end
diff --git a/challenge-256/laurent-rosenfeld/julia/ch-2.jl b/challenge-256/laurent-rosenfeld/julia/ch-2.jl
new file mode 100644
index 0000000000..676bef21c7
--- /dev/null
+++ b/challenge-256/laurent-rosenfeld/julia/ch-2.jl
@@ -0,0 +1,29 @@
+using Printf
+
+function merge_strings(str1, str2)
+    result = []
+    let1 = split(str1, "")
+    let2 = split(str2, "")
+    size1 = size(let1, 1)
+    size2 = size(let2, 1)
+    last_i = size1 > size2 ? size2 : size1
+    for i in 1:last_i
+        push!(result, let1[i], let2[i])
+    end
+    if size1 > size2
+        for i in last_i + 1:size1
+            push!(result, let1[i])
+        end
+    else
+        for i in last_i + 1:size2
+            push!(result, let2[i])
+        end
+    end
+    return join(result, "");
+end
+
+tests = [["abcd", "1234"], ["abc", "12345"], ["abcde", "123"]]
+for test in tests
+    @printf "%-18s => " "$test"
+    println(merge_strings(test[1], test[2]))
+end
diff --git a/stats/pwc-current.json b/stats/pwc-current.json
index 1f457c1696..703622b58c 100644
--- a/stats/pwc-current.json
+++ b/stats/pwc-current.json
@@ -1,6 +1,8 @@
 {
-   "subtitle" : {
-      "text" : "[Champions: 24] Last updated at 2024-02-15 19:27:48 GMT"
+   "yAxis" : {
+      "title" : {
+         "text" : "Total Solutions"
+      }
    },
    "drilldown" : {
       "series" : [
@@ -15,18 +17,18 @@
                   1
                ]
             ],
-            "name" : "Ali Moradi",
-            "id" : "Ali Moradi"
+            "id" : "Ali Moradi",
+            "name" : "Ali Moradi"
          },
          {
+            "name" : "Andrew Shitov",
+            "id" : "Andrew Shitov",
             "data" : [
                [
                   "Raku",
                   2
                ]
-            ],
-            "id" : "Andrew Shitov",
-            "name" : "Andrew Shitov"
+            ]
          },
          {
             "data" : [
@@ -43,8 +45,8 @@
             "name" : "Arne Sommer"
          },
          {
-            "id" : "Athanasius",
             "name" : "Athanasius",
+            "id" : "Athanasius",
             "data" : [
                [
                   "Perl",
@@ -57,8 +59,8 @@
             ]
          },
          {
-            "id" : "Cheok-Yin Fung",
             "name" : "Cheok-Yin Fung",
+            "id" : "Cheok-Yin Fung",
             "data" : [
                [
                   "Perl",
@@ -77,8 +79,8 @@
             ]
          },
          {
-            "id" : "E. Choroba",
             "name" : "E. Choroba",
+            "id" : "E. Choroba",
             "data" : [
                [
                   "Perl",
@@ -87,6 +89,7 @@
             ]
          },
          {
+            "id" : "Jaldhar H. Vyas",
             "data" : [
                [
                   "Perl",
@@ -101,12 +104,25 @@
                   1
                ]
             ],
-            "id" : "Jaldhar H. Vyas",
             "name" : "Jaldhar H. Vyas"
          },
          {
-            "id" : "Laurent Rosenfeld",
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ],
+               [
+                  "Blog",
+                  1
+               ]
+            ],
+            "id" : "Jorg Sommrey",
+            "name" : "Jorg Sommrey"
+         },
+         {
             "name" : "Laurent Rosenfeld",
+            "id" : "Laurent Rosenfeld",
             "data" : [
                [
                   "Perl",
@@ -123,6 +139,8 @@
             ]
          },
          {
+            "name" : "Lubos Kolouch",
+            "id" : "Lubos Kolouch",
             "data" : [
                [
                   "Perl",
@@ -132,13 +150,9 @@
                   "Raku",
                   2
                ]
-            ],
-            "name" : "Lubos Kolouch",
-            "id" : "Lubos Kolouch"
+            ]
          },
          {
-            "id" : "Luca Ferrari",
-            "name" : "Luca Ferrari",
             "data" : [
                [
                   "Raku",
@@ -148,16 +162,18 @@
                   "Blog",
                   9
                ]
-            ]
+            ],
+            "id" : "Luca Ferrari",
+            "name" : "Luca Ferrari"
          },
          {
+            "id" : "Mariano Spadaccini",
             "data" : [
                [
                   "Perl",
                   2
                ]
             ],
-            "id" : "Mariano Spadaccini",
             "name" : "Mariano Spadaccini"
          },
          {
@@ -171,18 +187,17 @@
             "name" : "Mark Anderson"
          },
          {
-            "id" : "Matthew Neleigh",
             "name" : "Matthew Neleigh",
             "data" : [
                [
                   "Perl",
                   2
                ]
-            ]
+            ],
+            "id" : "Matthew Neleigh"
          },
          {
             "name" : "Matthias Muth",
-            "id" : "Matthias Muth",
             "data" : [
                [
                   "Perl",
@@ -192,17 +207,36 @@
                   "Blog",
                   1
                ]
-            ]
+            ],
+            "id" : "Matthias Muth"
          },
          {
+            "name" : "Niels van Dijke",
             "data" : [
                [
                   "Perl",
                   2
                ]
             ],
-            "id" : "Niels van Dijke",
-            "name" : "Niels van Dijke"
+            "id" : "Niels van Dijke"
+         },
+         {
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ],
+               [
+                  "Raku",
+                  2
+               ],
+               [
+                  "Blog",
+                  1
+               ]
+            ],
+            "id" : "Packy Anderson",
+            "name" : "Packy Anderson"
          },
          {
             "name" : "Peter Campbell Smith",
@@ -220,17 +254,15 @@
          },
          {
             "id" : "Peter Meszaros",
-            "name" : "Peter Meszaros",
             "data" : [
                [
                   "Perl",
                   2
                ]
-            ]
+            ],
+            "name" : "Peter Meszaros"
          },
          {
-            "name" : "Robbie Hatley",
-            "id" : "Robbie Hatley",
             "data" : [
                [
                   "Perl",
@@ -240,9 +272,13 @@
                   "Blog",
                   1
                ]
-            ]
+            ],
+            "id" : "Robbie Hatley",
+            "name" : "Robbie Hatley"
          },
          {
+            "name" : "Roger Bell_West",
+            "id" : "Roger Bell_West",
             "data" : [
                [
                   "Perl",
@@ -252,12 +288,9 @@
                   "Raku",
                   2
                ]
-            ],
-            "id" : "Roger Bell_West",
-            "name" : "Roger Bell_West"
+            ]
          },
          {
-            "id" : "Stephen G. Lynn",
             "name" : "Stephen G. Lynn",
             "data" : [
                [
@@ -268,11 +301,10 @@
                   "Blog",
                   1
                ]
-            ]
+            ],
+            "id" : "Stephen G. Lynn"
          },
          {
-            "name" : "Thomas Kohler",
-            "id" : "Thomas Kohler",
             "data" : [
                [
                   "Perl",
@@ -282,7 +314,9 @@
                   "Blog",
                   2
                ]
-            ]
+            ],
+            "id" : "Thomas Kohler",
+            "name" : "Thomas Kohler"
          },
          {
             "name" : "Ulrich Rieke",
@@ -314,71 +348,81 @@
          }
       ]
    },
+   "title" : {
+      "text" : "The Weekly Challenge - 256"
+   },
    "xAxis" : {
       "type" : "category"
    },
    "series" : [
       {
+         "name" : "The Weekly Challenge - 256",
+         "colorByPoint" : 1,
          "data" : [
             {
-               "drilldown" : "Ali Moradi",
                "y" : 3,
+               "drilldown" : "Ali Moradi",
                "name" : "Ali Moradi"
             },
             {
-               "drilldown" : "Andrew Shitov",
                "y" : 2,
+               "drilldown" : "Andrew Shitov",
                "name" : "Andrew Shitov"
             },
             {
-               "drilldown" : "Arne Sommer",
+               "name" : "Arne Sommer",
                "y" : 3,
-               "name" : "Arne Sommer"
+               "drilldown" : "Arne Sommer"
             },
             {
+               "name" : "Athanasius",
                "y" : 4,
-               "drilldown" : "Athanasius",
-               "name" : "Athanasius"
+               "drilldown" : "Athanasius"
             },
             {
-               "name" : "Cheok-Yin Fung",
+               "y" : 2,
                "drilldown" : "Cheok-Yin Fung",
-               "y" : 2
+               "name" : "Cheok-Yin Fung"
             },
             {
                "name" : "David Ferrone",
-               "drilldown" : "David Ferrone",
-               "y" : 2
+               "y" : 2,
+               "drilldown" : "David Ferrone"
             },
             {
-               "name" : "E. Choroba",
+               "y" : 2,
                "drilldown" : "E. Choroba",
-               "y" : 2
+               "name" : "E. Choroba"
             },
             {
-               "y" : 5,
                "drilldown" : "Jaldhar H. Vyas",
+               "y" : 5,
                "name" : "Jaldhar H. Vyas"
             },
             {
-               "name" : "Laurent Rosenfeld",
+               "drilldown" : "Jorg Sommrey",
+               "y" : 3,
+               "name" : "Jorg Sommrey"
+            },
+            {
+               "drilldown" : "Laurent Rosenfeld",
                "y" : 6,
-               "drilldown" : "Laurent Rosenfeld"
+               "name" : "Laurent Rosenfeld"
             },
             {
+               "name" : "Lubos Kolouch",
                "y" : 4,
-               "drilldown" : "Lubos Kolouch",
-               "name" : "Lubos Kolouch"
+               "drilldown" : "Lubos Kolouch"
             },
             {
-               "name" : "Luca Ferrari",
+               "y" : 11,
                "drilldown" : "Luca Ferrari",
-               "y" : 11
+               "name" : "Luca Ferrari"
             },
             {
-               "name" : "Mariano Spadaccini",
                "drilldown" : "Mariano Spadaccini",
-               "y" : 2
+               "y" : 2,
+               "name" : "Mariano Spadaccini"
             },
             {
                "drilldown" : "Mark Anderson",
@@ -386,9 +430,9 @@
                "name" : "Mark Anderson"
             },
             {
+               "name" : "Matthew Neleigh",
                "drilldown" : "Matthew Neleigh",
-               "y" : 2,
-               "name" : "Matthew Neleigh"
+               "y" : 2
             },
             {
                "y" : 3,
@@ -396,11 +440,16 @@
                "name" : "Matthias Muth"
             },
             {
-               "y" : 2,
                "drilldown" : "Niels van Dijke",
+               "y" : 2,
                "name" : "Niels van Dijke"
             },
             {
+               "name" : "Packy Anderson",
+               "y" : 5,
+               "drilldown" : "Packy Anderson"
+            },
+            {
                "drilldown" : "Peter Campbell Smith",
                "y" : 3,
                "name" : "Peter Campbell Smith"
@@ -411,66 +460,59 @@
                "name" : "Peter Meszaros"
             },
             {
-               "drilldown" : "Robbie Hatley",
+               "name" : "Robbie Hatley",
                "y" : 3,
-               "name" : "Robbie Hatley"
+               "drilldown" : "Robbie Hatley"
             },
             {
-               "drilldown" : "Roger Bell_West",
                "y" : 4,
+               "drilldown" : "Roger Bell_West",
                "name" : "Roger Bell_West"
             },
             {
-               "y" : 3,
                "drilldown" : "Stephen G. Lynn",
+               "y" : 3,
                "name" : "Stephen G. Lynn"
             },
             {
-               "name" : "Thomas Kohler",
                "y" : 4,
-               "drilldown" : "Thomas Kohler"
+               "drilldown" : "Thomas Kohler",
+               "name" : "Thomas Kohler"
             },
             {
-               "name" : "Ulrich Rieke",
+               "drilldown" : "Ulrich Rieke",
                "y" : 4,
-               "drilldown" : "Ulrich Rieke"
+               "name" : "Ulrich Rieke"
             },
             {
-               "name" : "W. Luis Mochan",
+               "drilldown" : "W. Luis Mochan",
                "y" : 3,
-               "drilldown" : "W. Luis Mochan"
+               "name" : "W. Luis Mochan"
             }
-         ],
-         "colorByPoint" : 1,
-         "name" : "The Weekly Challenge - 256"
+         ]
       }
    ],
-   "legend" : {
-      "enabled" : 0
-   },
-   "title" : {
-      "text" : "The Weekly Challenge - 256"
+   "chart" : {
+      "type" : "column"
    },
    "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/>"
-   },
-   "yAxis" : {
-      "title" : {
-         "text" : "Total Solutions"
-      }
-   },
-   "chart" : {
-      "type" : "column"
+      "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/>"
    },
    "plotOptions" : {
       "series" : {
-         "borderWidth" : 0,
          "dataLabels" : {
-            "format" : "{point.y}",
-            "enabled" : 1
-         }
+            "enabled" : 1,
+            "format" : "{point.y}"
+         },
+         "borderWidth" : 0
       }
+   },
+   "subtitle" : {
+      "text" : "[Champions: 26] Last updated at 2024-02-16 20:18:44 GMT"
+   },
+   "legend" : {
+      "enabled" : 0
    }
 }
diff --git a/stats/pwc-language-breakdown-summary.json b/stats/pwc-language-breakdown-summary.json
index 80274e9f99..d9fa978ae3 100644
--- a/stats/pwc-language-breakdown-summary.json
+++ b/stats/pwc-language-breakdown-summary.json
@@ -1,63 +1,63 @@
 {
-   "tooltip" : {
-      "pointFormat" : "<b>{point.y:.0f}</b>"
-   },
-   "yAxis" : {
-      "min" : 0,
-      "title" : {
-         "text" : null
-      }
+   "legend" : {
+      "enabled" : "false"
    },
-   "chart" : {
-      "type" : "column"
+   "subtitle" : {
+      "text" : "Last updated at 2024-02-16 20:18:44 GMT"
    },
    "series" : [
       {
          "name" : "Contributions",
          "dataLabels" : {
-            "format" : "{point.y:.0f}",
+            "rotation" : -90,
             "color" : "#FFFFFF",
+            "y" : 10,
+            "enabled" : "true",
             "align" : "right",
             "style" : {
-               "fontSize" : "13px",
-               "fontFamily" : "Verdana, sans-serif"
+               "fontFamily" : "Verdana, sans-serif",
+               "fontSize" : "13px"
             },
-            "enabled" : "true",
-            "rotation" : -90,
-            "y" : 10
+            "format" : "{point.y:.0f}"
          },
          "data" : [
             [
                "Blog",
-               4530
+               4532
             ],
             [
                "Perl",
-               13230
+               13234
             ],
             [
                "Raku",
-               7635
+               7637
             ]
          ]
       }
    ],
+   "chart" : {
+      "type" : "column"
+   },
+   "tooltip" : {
+      "pointFormat" : "<b>{point.y:.0f}</b>"
+   },
    "xAxis" : {
-      "type" : "category",
       "labels" : {
          "style" : {
             "fontFamily" : "Verdana, sans-serif",
             "fontSize" : "13px"
          }
-      }
-   },
-   "legend" : {
-      "enabled" : "false"
+      },
+      "type" : "category"
    },
    "title" : {
       "text" : "The Weekly Challenge Contributions [2019 - 2024]"
    },
-   "subtitle" : {
-      "text" : "Last updated at 2024-02-15 19:27:48 GMT"
+   "yAxis" : {
+      "min" : 0,
+      "title" : {
+         "text" : null
+      }
    }
 }
diff --git a/stats/pwc-language-breakdown.json b/stats/pwc-language-breakdown.json
index b8f37e09c6..f98eb287f2 100644
--- a/stats/pwc-language-breakdown.json
+++ b/stats/pwc-language-breakdown.json
@@ -1,38 +1,15 @@
 {
-   "subtitle" : {
-      "text" : "Click the columns to drilldown the language breakdown. Last updated at 2024-02-15 19:27:48 GMT"
-   },
-   "plotOptions" : {
-      "series" : {
-         "borderWidth" : 0,
-         "dataLabels" : {
-            "enabled" : 1,
-            "format" : "{point.y}"
-         }
-      }
-   },
-   "tooltip" : {
-      "pointFormat" : "<span style=\"color:{point.color}\">Challenge {point.name}</span>: <b>{point.y:f}</b><br/>",
-      "followPointer" : "true",
-      "headerFormat" : "<span style=\"font-size:11px\"></span>"
-   },
-   "yAxis" : {
-      "title" : {
-         "text" : "Total Solutions"
-      }
-   },
-   "chart" : {
-      "type" : "column"
+   "xAxis" : {
+      "type" : "category"
    },
    "title" : {
       "text" : "The Weekly Challenge Language"
    },
-   "legend" : {
-      "enabled" : "false"
-   },
    "drilldown" : {
       "series" : [
          {
+            "name" : "001",
+            "id" : "001",
             "data" : [
                [
                   "Perl",
@@ -46,11 +23,10 @@
                   "Blog",
                   12
                ]
-            ],
-            "id" : "001",
-            "name" : "001"
+            ]
          },
          {
+            "id" : "002",
             "data" : [
                [
                   "Perl",
@@ -65,10 +41,10 @@
                   10
                ]
             ],
-            "name" : "002",
-            "id" : "002"
+            "name" : "002"
          },
          {
+            "name" : "003",
             "data" : [
                [
                   "Perl",
@@ -83,10 +59,10 @@
                   9
                ]
             ],
-            "id" : "003",
-            "name" : "003"
+            "id" : "003"
          },
          {
+            "id" : "004",
             "data" : [
                [
                   "Perl",
@@ -101,10 +77,10 @@
                   10
                ]
             ],
-            "name" : "004",
-            "id" : "004"
+            "name" : "004"
          },
          {
+            "id" : "005",
             "data" : [
                [
                   "Perl",
@@ -119,12 +95,9 @@
                   12
                ]
             ],
-            "id" : "005",
             "name" : "005"
          },
          {
-            "id" : "006",
-            "name" : "006",
             "data" : [
                [
                   "Perl",
@@ -138,11 +111,11 @@
                   "Blog",
                   7
                ]
-            ]
+            ],
+            "id" : "006",
+            "name" : "006"
          },
          {
-            "id" : "007",
-            "name" : "007",
             "data" : [
                [
                   "Perl",
@@ -156,11 +129,11 @@
                   "Blog",
                   10
                ]
-            ]
+            ],
+            "id" : "007",
+            "name" : "007"
          },
          {
-            "name" : "008",
-            "id" : "008",
             "data" : [
                [
                   "Perl",
@@ -174,7 +147,9 @@
                   "Blog",
                   12
                ]
-            ]
+            ],
+            "id" : "008",
+            "name" : "008"
          },
          {
             "data" : [
@@ -191,10 +166,11 @@
                   13
                ]
             ],
-            "name" : "009",
-            "id" : "009"
+            "id" : "009",
+            "name" : "009"
          },
          {
+            "name" : "010",
             "data" : [
                [
                   "Perl",
@@ -209,12 +185,9 @@
                   11
                ]
             ],
-            "id" : "010",
-            "name" : "010"
+            "id" : "010"
          },
          {
-            "name" : "011",
-            "id" : "011",
             "data" : [
                [
                   "Perl",
@@ -228,11 +201,11 @@
                   "Blog",
                   10
                ]
-            ]
+            ],
+            "id" : "011",
+            "name" : "011"
          },
          {
-            "id" : "012",
-            "name" : "012",
             "data" : [
                [
                   "Perl",
@@ -246,9 +219,12 @@
                   "Blog",
                   11
                ]
-            ]
+            ],
+            "id" : "012",
+            "name" : "012"
          },
          {
+            "name" : "013",
             "data" : [
                [
                   "Perl",
@@ -263,10 +239,10 @@
                   13
                ]
             ],
-            "name" : "013",
             "id" : "013"
          },
          {
+            "name" : "014",
             "data" : [
                [
                   "Perl",
@@ -281,10 +257,10 @@
                   15
                ]
             ],
-            "name" : "014",
             "id" : "014"
          },
          {
+            "name" : "015",
             "data" : [
                [
                   "Perl",
@@ -299,8 +275,7 @@
                   15
                ]
             ],
-            "id" : "015",
-            "name" : "015"
+            "id" : "015"
          },
          {
             "data" : [
@@ -321,7 +296,6 @@
             "name" : "016"
          },
          {
-            "id" : "017",
             "name" : "017",
             "data" : [
                [
@@ -336,9 +310,11 @@
                   "Blog",
                   12
                ]
-            ]
+            ],
+            "id" : "017"
          },
          {
+            "id" : "018",
             "data" : [
                [
                   "Perl",
@@ -353,11 +329,9 @@
                   14
                ]
             ],
-            "id" : "018",
             "name" : "018"
          },
          {
-            "name" : "019",
             "id" : "019",
             "data" : [
                [
@@ -372,11 +346,12 @@
                   "Blog",
                   13
                ]
-            ]
+            ],
+            "name" : "019"
          },
          {
-            "id" : "020",
             "name" : "020",
+            "id" : "020",
             "data" : [
                [
                   "Perl",
@@ -407,10 +382,12 @@
                   10
                ]
             ],
-            "name" : "021",
-            "id" : "021"
+            "id" : "021",
+            "name" : "021"
          },
          {
+            "name" : "022",
+            "id" : "022",
             "data" : [
                [
                   "Perl",
@@ -424,11 +401,10 @@
                   "Blog",
                   10
                ]
-            ],
-            "name" : "022",
-            "id" : "022"
+            ]
          },
          {
+            "name" : "023",
             "data" : [
                [
                   "Perl",
@@ -443,8 +419,7 @@
                   12
                ]
             ],
-            "id" : "023",
-            "name" : "023"
+            "id" : "023"
          },
          {
             "name" : "024",
@@ -483,6 +458,8 @@
             "name" : "025"
          },
          {
+            "name" : "026",
+            "id" : "026",
             "data" : [
                [
                   "Perl",
@@ -496,9 +473,7 @@
                   "Blog",
                   10
                ]
-            ],
-            "name" : "026",
-            "id" : "026"
+            ]
          },
          {
             "data" : [
@@ -519,7 +494,6 @@
             "name" : "027"
          },
          {
-            "name" : "028",
             "id" : "028",
             "data" : [
                [
@@ -534,9 +508,11 @@
                   "Blog",
                   9
                ]
-            ]
+            ],
+            "name" : "028"
          },
          {
+            "name" : "029",
             "data" : [
                [
                   "Perl",
@@ -551,11 +527,9 @@
                   12
                ]
             ],
-            "name" : "029",
             "id" : "029"
          },
          {
-            "name" : "030",
             "id" : "030",
             "data" : [
                [
@@ -570,7 +544,8 @@
                   "Blog",
                   10
                ]
-            ]
+            ],
+            "name" : "030"
          },
          {
             "data" : [
@@ -591,7 +566,6 @@
             "name" : "031"
          },
          {
-            "id" : "032",
             "name" : "032",
             "data" : [
                [
@@ -606,9 +580,11 @@
                   "Blog",
                   10
                ]
-            ]
+