- Added solutions by Bob Lied.

- Added solutions by Roger Bell_West.
- Added solutions by Steven Wilson.

18 files changed, 1557 insertions, 1523 deletions

diff --git a/challenge-245/steven-wilson/python/ch-01.py b/challenge-245/steven-wilson/python/ch-1.py
index 9017f8cfa6..9017f8cfa6 100644
--- a/challenge-245/steven-wilson/python/ch-01.py
+++ b/challenge-245/steven-wilson/python/ch-1.py
diff --git a/challenge-245/steven-wilson/python/ch-02.py b/challenge-245/steven-wilson/python/ch-2.py
index 74f2ade0e3..74f2ade0e3 100644
--- a/challenge-245/steven-wilson/python/ch-02.py
+++ b/challenge-245/steven-wilson/python/ch-2.py
diff --git a/stats/pwc-current.json b/stats/pwc-current.json
index fa47405ae8..3fd2991753 100644
--- a/stats/pwc-current.json
+++ b/stats/pwc-current.json
@@ -1,30 +1,55 @@
 {
+   "legend" : {
+      "enabled" : 0
+   },
+   "title" : {
+      "text" : "The Weekly Challenge - 245"
+   },
+   "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/>"
+   },
+   "subtitle" : {
+      "text" : "[Champions: 15] Last updated at 2023-11-28 17:53:20 GMT"
+   },
+   "xAxis" : {
+      "type" : "category"
+   },
    "series" : [
       {
          "data" : [
             {
+               "y" : 2,
+               "drilldown" : "Bob Lied",
+               "name" : "Bob Lied"
+            },
+            {
+               "y" : 2,
                "drilldown" : "Clifton Wood",
-               "name" : "Clifton Wood",
-               "y" : 2
+               "name" : "Clifton Wood"
             },
             {
                "name" : "Dave Jacoby",
-               "y" : 2,
-               "drilldown" : "Dave Jacoby"
+               "drilldown" : "Dave Jacoby",
+               "y" : 2
             },
             {
-               "drilldown" : "David Ferrone",
                "name" : "David Ferrone",
-               "y" : 2
+               "y" : 2,
+               "drilldown" : "David Ferrone"
             },
             {
+               "y" : 2,
                "drilldown" : "E. Choroba",
-               "name" : "E. Choroba",
-               "y" : 2
+               "name" : "E. Choroba"
             },
             {
-               "drilldown" : "Humberto Massa",
                "y" : 2,
+               "drilldown" : "Humberto Massa",
                "name" : "Humberto Massa"
             },
             {
@@ -33,106 +58,110 @@
                "name" : "Luca Ferrari"
             },
             {
-               "y" : 1,
                "name" : "Mariano Spadaccini",
-               "drilldown" : "Mariano Spadaccini"
+               "drilldown" : "Mariano Spadaccini",
+               "y" : 1
             },
             {
-               "y" : 2,
                "name" : "Niels van Dijke",
-               "drilldown" : "Niels van Dijke"
+               "drilldown" : "Niels van Dijke",
+               "y" : 2
             },
             {
-               "y" : 3,
                "name" : "Peter Campbell Smith",
+               "y" : 3,
                "drilldown" : "Peter Campbell Smith"
             },
             {
                "name" : "Peter Meszaros",
-               "y" : 2,
-               "drilldown" : "Peter Meszaros"
+               "drilldown" : "Peter Meszaros",
+               "y" : 2
             },
             {
+               "name" : "Roger Bell_West",
                "y" : 4,
+               "drilldown" : "Roger Bell_West"
+            },
+            {
                "name" : "Thomas Kohler",
-               "drilldown" : "Thomas Kohler"
+               "drilldown" : "Thomas Kohler",
+               "y" : 4
             },
             {
-               "drilldown" : "Ulrich Rieke",
+               "name" : "Ulrich Rieke",
                "y" : 4,
-               "name" : "Ulrich Rieke"
+               "drilldown" : "Ulrich Rieke"
             },
             {
-               "drilldown" : "W. Luis Mochan",
                "name" : "W. Luis Mochan",
+               "drilldown" : "W. Luis Mochan",
                "y" : 3
             }
          ],
-         "name" : "The Weekly Challenge - 245",
-         "colorByPoint" : 1
+         "colorByPoint" : 1,
+         "name" : "The Weekly Challenge - 245"
       }
    ],
-   "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/>"
-   },
    "plotOptions" : {
       "series" : {
          "dataLabels" : {
-            "format" : "{point.y}",
-            "enabled" : 1
+            "enabled" : 1,
+            "format" : "{point.y}"
          },
          "borderWidth" : 0
       }
    },
-   "legend" : {
-      "enabled" : 0
-   },
    "drilldown" : {
       "series" : [
          {
-            "name" : "Clifton Wood",
+            "id" : "Bob Lied",
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ]
+            ],
+            "name" : "Bob Lied"
+         },
+         {
             "id" : "Clifton Wood",
             "data" : [
                [
                   "Raku",
                   2
                ]
-            ]
+            ],
+            "name" : "Clifton Wood"
          },
          {
-            "name" : "Dave Jacoby",
+            "id" : "Dave Jacoby",
             "data" : [
                [
                   "Perl",
                   2
                ]
             ],
-            "id" : "Dave Jacoby"
+            "name" : "Dave Jacoby"
          },
          {
-            "id" : "David Ferrone",
+            "name" : "David Ferrone",
             "data" : [
                [
                   "Perl",
                   2
                ]
             ],
-            "name" : "David Ferrone"
+            "id" : "David Ferrone"
          },
          {
-            "name" : "E. Choroba",
-            "id" : "E. Choroba",
             "data" : [
                [
                   "Perl",
                   2
                ]
-            ]
+            ],
+            "id" : "E. Choroba",
+            "name" : "E. Choroba"
          },
          {
             "name" : "Humberto Massa",
@@ -145,7 +174,6 @@
             "id" : "Humberto Massa"
          },
          {
-            "id" : "Luca Ferrari",
             "data" : [
                [
                   "Raku",
@@ -156,27 +184,28 @@
                   9
                ]
             ],
+            "id" : "Luca Ferrari",
             "name" : "Luca Ferrari"
          },
          {
             "name" : "Mariano Spadaccini",
+            "id" : "Mariano Spadaccini",
             "data" : [
                [
                   "Perl",
                   1
                ]
-            ],
-            "id" : "Mariano Spadaccini"
+            ]
          },
          {
-            "name" : "Niels van Dijke",
             "id" : "Niels van Dijke",
             "data" : [
                [
                   "Perl",
                   2
                ]
-            ]
+            ],
+            "name" : "Niels van Dijke"
          },
          {
             "name" : "Peter Campbell Smith",
@@ -193,16 +222,31 @@
             "id" : "Peter Campbell Smith"
          },
          {
+            "name" : "Peter Meszaros",
             "data" : [
                [
                   "Perl",
                   2
                ]
             ],
-            "id" : "Peter Meszaros",
-            "name" : "Peter Meszaros"
+            "id" : "Peter Meszaros"
          },
          {
+            "name" : "Roger Bell_West",
+            "id" : "Roger Bell_West",
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ],
+               [
+                  "Raku",
+                  2
+               ]
+            ]
+         },
+         {
+            "id" : "Thomas Kohler",
             "data" : [
                [
                   "Perl",
@@ -213,10 +257,10 @@
                   2
                ]
             ],
-            "id" : "Thomas Kohler",
             "name" : "Thomas Kohler"
          },
          {
+            "name" : "Ulrich Rieke",
             "data" : [
                [
                   "Perl",
@@ -227,10 +271,10 @@
                   2
                ]
             ],
-            "id" : "Ulrich Rieke",
-            "name" : "Ulrich Rieke"
+            "id" : "Ulrich Rieke"
          },
          {
+            "name" : "W. Luis Mochan",
             "id" : "W. Luis Mochan",
             "data" : [
                [
@@ -241,20 +285,10 @@
                   "Blog",
                   1
                ]
-            ],
-            "name" : "W. Luis Mochan"
+            ]
          }
       ]
    },
-   "xAxis" : {
-      "type" : "category"
-   },
-   "title" : {
-      "text" : "The Weekly Challenge - 245"
-   },
-   "subtitle" : {
-      "text" : "[Champions: 13] Last updated at 2023-11-28 11:50:08 GMT"
-   },
    "yAxis" : {
       "title" : {
          "text" : "Total Solutions"
diff --git a/stats/pwc-language-breakdown-summary.json b/stats/pwc-language-breakdown-summary.json
index 95c3935250..ae64c06577 100644
--- a/stats/pwc-language-breakdown-summary.json
+++ b/stats/pwc-language-breakdown-summary.json
@@ -1,15 +1,12 @@
 {
-   "yAxis" : {
-      "min" : 0,
-      "title" : {
-         "text" : null
-      }
-   },
    "title" : {
       "text" : "The Weekly Challenge Contributions [2019 - 2023]"
    },
+   "chart" : {
+      "type" : "column"
+   },
    "subtitle" : {
-      "text" : "Last updated at 2023-11-28 11:50:08 GMT"
+      "text" : "Last updated at 2023-11-28 17:53:20 GMT"
    },
    "xAxis" : {
       "type" : "category",
@@ -20,27 +17,20 @@
          }
       }
    },
+   "tooltip" : {
+      "pointFormat" : "<b>{point.y:.0f}</b>"
+   },
    "legend" : {
       "enabled" : "false"
    },
-   "tooltip" : {
-      "pointFormat" : "<b>{point.y:.0f}</b>"
+   "yAxis" : {
+      "min" : 0,
+      "title" : {
+         "text" : null
+      }
    },
    "series" : [
       {
-         "name" : "Contributions",
-         "dataLabels" : {
-            "style" : {
-               "fontFamily" : "Verdana, sans-serif",
-               "fontSize" : "13px"
-            },
-            "color" : "#FFFFFF",
-            "y" : 10,
-            "format" : "{point.y:.0f}",
-            "align" : "right",
-            "rotation" : -90,
-            "enabled" : "true"
-         },
          "data" : [
             [
                "Blog",
@@ -48,16 +38,26 @@
             ],
             [
                "Perl",
-               12639
+               12643
             ],
             [
                "Raku",
-               7289
+               7291
             ]
-         ]
+         ],
+         "dataLabels" : {
+            "format" : "{point.y:.0f}",
+            "style" : {
+               "fontFamily" : "Verdana, sans-serif",
+               "fontSize" : "13px"
+            },
+            "align" : "right",
+            "enabled" : "true",
+            "y" : 10,
+            "rotation" : -90,
+            "color" : "#FFFFFF"
+         },
+         "name" : "Contributions"
       }
-   ],
-   "chart" : {
-      "type" : "column"
-   }
+   ]
 }
diff --git a/stats/pwc-language-breakdown.json b/stats/pwc-language-breakdown.json
index 25cd77471d..3e48895e5b 100644
--- a/stats/pwc-language-breakdown.json
+++ b/stats/pwc-language-breakdown.json
@@ -1,12 +1,23 @@
 {
-   "xAxis" : {
-      "type" : "category"
-   },
    "title" : {
       "text" : "The Weekly Challenge Language"
    },
+   "chart" : {
+      "type" : "column"
+   },
+   "xAxis" : {
+      "type" : "category"
+   },
    "subtitle" : {
-      "text" : "Click the columns to drilldown the language breakdown. Last updated at 2023-11-28 11:50:08 GMT"
+      "text" : "Click the columns to drilldown the language breakdown. Last updated at 2023-11-28 17:53:20 GMT"
+   },
+   "tooltip" : {
+      "followPointer" : "true",
+      "headerFormat" : "<span style=\"font-size:11px\"></span>",
+      "pointFormat" : "<span style=\"color:{point.color}\">Challenge {point.name}</span>: <b>{point.y:f}</b><br/>"
+   },
+   "legend" : {
+      "enabled" : "false"
    },
    "yAxis" : {
       "title" : {
@@ -15,7 +26,6 @@
    },
    "series" : [
       {
-         "colorByPoint" : "true",
          "data" : [
             {
                "name" : "#001",
@@ -28,9 +38,9 @@
                "name" : "#002"
             },
             {
-               "drilldown" : "003",
                "name" : "#003",
-               "y" : 87
+               "y" : 87,
+               "drilldown" : "003"
             },
             {
                "drilldown" : "004",
@@ -38,54 +48,54 @@
                "name" : "#004"
             },
             {
+               "name" : "#005",
                "drilldown" : "005",
-               "y" : 80,
-               "name" : "#005"
+               "y" : 80
             },
             {
-               "name" : "#006",
+               "drilldown" : "006",
                "y" : 61,
-               "drilldown" : "006"
+               "name" : "#006"
             },
             {
-               "drilldown" : "007",
                "y" : 69,
+               "drilldown" : "007",
                "name" : "#007"
             },
             {
-               "y" : 82,
                "name" : "#008",
-               "drilldown" : "008"
+               "drilldown" : "008",
+               "y" : 82
             },
             {
                "name" : "#009",
-               "y" : 80,
-               "drilldown" : "009"
+               "drilldown" : "009",
+               "y" : 80
             },
             {
-               "drilldown" : "010",
                "name" : "#010",
+               "drilldown" : "010",
                "y" : 69
             },
             {
-               "drilldown" : "011",
                "name" : "#011",
-               "y" : 89
+               "y" : 89,
+               "drilldown" : "011"
             },
             {
+               "name" : "#012",
                "drilldown" : "012",
-               "y" : 92,
-               "name" : "#012"
+               "y" : 92
             },
             {
-               "drilldown" : "013",
                "y" : 87,
+               "drilldown" : "013",
                "name" : "#013"
             },
             {
-               "name" : "#014",
+               "drilldown" : "014",
                "y" : 102,
-               "drilldown" : "014"
+               "name" : "#014"
             },
             {
                "drilldown" : "015",
@@ -93,29 +103,29 @@
                "name" : "#015"
             },
             {
-               "drilldown" : "016",
                "y" : 75,
+               "drilldown" : "016",
                "name" : "#016"
             },
             {
-               "drilldown" : "017",
                "y" : 86,
+               "drilldown" : "017",
                "name" : "#017"
             },
             {
                "y" : 83,
-               "name" : "#018",
-               "drilldown" : "018"
+               "drilldown" : "018",
+               "name" : "#018"
             },
             {
-               "drilldown" : "019",
                "name" : "#019",
+               "drilldown" : "019",
                "y" : 105
             },
             {
                "y" : 103,
-               "name" : "#020",
-               "drilldown" : "020"
+               "drilldown" : "020",
+               "name" : "#020"
             },
             {
                "drilldown" : "021",
@@ -123,39 +133,39 @@
                "name" : "#021"
             },
             {
+               "drilldown" : "022",
                "y" : 72,
-               "name" : "#022",
-               "drilldown" : "022"
+               "name" : "#022"
             },
             {
                "drilldown" : "023",
-               "name" : "#023",
-               "y" : 101
+               "y" : 101,
+               "name" : "#023"
             },
             {
                "name" : "#024",
-               "y" : 77,
-               "drilldown" : "024"
+               "drilldown" : "024",
+               "y" : 77
             },
             {
+               "drilldown" : "025",
                "y" : 62,
-               "name" : "#025",
-               "drilldown" : "025"
+               "name" : "#025"
             },
             {
                "name" : "#026",
-               "y" : 76,
-               "drilldown" : "026"
+               "drilldown" : "026",
+               "y" : 76
             },
             {
                "name" : "#027",
-               "y" : 64,
-               "drilldown" : "027"
+               "drilldown" : "027",
+               "y" : 64
             },
             {
                "name" : "#028",
-               "y" : 82,
-               "drilldown" : "028"
+               "drilldown" : "028",
+               "y" : 82
             },
             {
                "name" : "#029",
@@ -164,77 +174,77 @@
             },
             {
                "y" : 121,
-               "name" : "#030",
-               "drilldown" : "030"
+               "drilldown" : "030",
+               "name" : "#030"
             },
             {
+               "y" : 93,
                "drilldown" : "031",
-               "name" : "#031",
-               "y" : 93
+               "name" : "#031"
             },
             {
-               "y" : 98,
                "name" : "#032",
-               "drilldown" : "032"
+               "drilldown" : "032",
+               "y" : 98
             },
             {
                "name" : "#033",
-               "y" : 114,
-               "drilldown" : "033"
+               "drilldown" : "033",
+               "y" : 114
             },
             {
-               "name" : "#034",
+               "drilldown" : "034",
                "y" : 70,
-               "drilldown" : "034"
+               "name" : "#034"
             },
             {
                "name" : "#035",
-               "y" : 68,
-               "drilldown" : "035"
+               "drilldown" : "035",
+               "y" : 68
             },
             {
+               "y" : 70,
                "drilldown" : "036",
-               "name" : "#036",
-               "y" : 70
+               "name" : "#036"
             },
             {
                "name" : "#037",
-               "y" : 70,
-               "drilldown" : "037"
+               "drilldown" : "037",
+               "y" : 70
             },
             {
-               "drilldown" : "038",
                "y" : 74,
+               "drilldown" : "038",
                "name" : "#038"
             },
             {
                "drilldown" : "039",
-               "name" : "#039",
-               "y" : 68
+               "y" : 68,
+               "name" : "#039"
             },
             {
-               "drilldown" : "040",
                "name" : "#040",
+               "drilldown" : "040",
                "y" : 77
             },
             {
-               "drilldown" : "041",
                "name" : "#041",
+               "drilldown" : "041",
                "y" : 80
             },
             {
-               "drilldown" : "042",
                "name" : "#042",
+               "drilldown" : "042",
                "y" : 98
             },
             {
+               "name" : "#043",
                "drilldown" : "043",
-               "y" : 72,
-               "name" : "#043"
+               "y" : 72
             },
             {
-               "drilldown" : "044",
                "y" : 90,
+               "drilldown" : "044",
                "name" : "#044"
             },
             {
@@ -243,124 +253,124 @@
                "drilldown" : "045"
             },
             {
-               "drilldown" : "046",
                "name" : "#046",
+               "drilldown" : "046",
                "y" : 93
             },
             {
                "y" : 88,
-               "name" : "#047",
-               "drilldown" : "047"
+               "drilldown" : "047",
+               "name" : "#047"
             },
             {
                "y" : 112,
-               "name" : "#048",
-               "drilldown" : "048"
+               "drilldown" : "048",
+               "name" : "#048"
             },
             {
-               "drilldown" : "049",
                "y" : 93,
+               "drilldown" : "049",
                "name" : "#049"
             },
             {
                "name" : "#050",
-               "y" : 104,
-               "drilldown" : "050"
+               "drilldown" : "050",
+               "y" : 104
             },
             {
-               "name" : "#051",
                "y" : 95,
-               "drilldown" : "051"
+               "drilldown" : "051",
+               "name" : "#051"
             },
             {
                "drilldown" : "052",
-               "name" : "#052",
-               "y" : 93
+               "y" : 93,
+               "name" : "#052"
             },
             {
-               "drilldown" : "053",
+               "name" : "#053",
                "y" : 105,
-               "name" : "#053"
+               "drilldown" : "053"
             },
             {
+               "y" : 107,
                "drilldown" : "054",
-               "name" : "#054",
-               "y" : 107
+               "name" : "#054"
             },
             {
-               "y" : 92,
                "name" : "#055",
+               "y" : 92,
                "drilldown" : "055"
             },
             {
-               "drilldown" : "056",
                "name" : "#056",
+               "drilldown" : "056",
                "y" : 104
             },
             {
-               "drilldown" : "057",
                "y" : 86,
+               "drilldown" : "057",
                "name" : "#057"
             },
             {
+               "name" : "#058",
                "drilldown" : "058",
-               "y" : 71,
-               "name" : "#058"
+               "y" : 71
             },
             {
-               "y" : 93,
                "name" : "#059",
+               "y" : 93,
                "drilldown" : "059"
             },
             {
+               "name" : "#060",
                "drilldown" : "060",
-               "y" : 89,
-               "name" : "#060"
+               "y" : 89
             },
             {
                "drilldown" : "061",
-               "name" : "#061",
-               "y" : 85
+               "y" : 85,
+               "name" : "#061"
             },
             {
+               "name" : "#062",
                "drilldown" : "062",
-               "y" : 62,
-               "name" : "#062"
+               "y" : 62
             },
             {
-               "name" : "#063",
                "y" : 93,
-               "drilldown" : "063"
+               "drilldown" : "063",
+               "name" : "#063"
             },
             {
-               "name" : "#064",
                "y" : 84,
-               "drilldown" : "064"
+               "drilldown" : "064",
+               "name" : "#064"
             },
             {
-               "drilldown" : "065",
                "y" : 77,
+               "drilldown" : "065",
                "name" : "#065"
             },
             {
+               "name" : "#066",
                "drilldown" : "066",
-               "y" : 88,
-               "name" : "#066"
+               "y" : 88
             },
             {
-               "name" : "#067",
                "y" : 94,
-               "drilldown" : "067"
+               "drilldown" : "067",
+               "name" : "#067"
             },
             {
-               "drilldown" : "068",
                "name" : "#068",
+               "drilldown" : "068",
                "y" : 79
             },
             {
                "drilldown" : "069",
-               "name" : "#069",
-               "y" : 87
+               "y" : 87,
+               "name" : "#069"
             },
             {
                "drilldown" : "070",
@@ -368,53 +378,53 @@
                "name" : "#070"
             },
             {
-               "drilldown" : "071",
                "y" : 82,
+               "drilldown" : "071",
                "name" : "#071"
             },
             {
                "name" : "#072",
-               "y" : 116,
-               "drilldown" : "072"
+               "drilldown" : "072",
+               "y" : 116
             },
             {
-               "y" : 112,
                "name" : "#073",
-               "drilldown" : "073"
+               "drilldown" : "073",
+               "y" : 112
             },
             {
                "name" : "#074",
-               "y" : 117,
-               "drilldown" : "074"
+               "drilldown" : "074",
+               "y" : 117
             },
             {
-               "y" : 117,
                "name" : "#075",
+               "y" : 117,
                "drilldown" : "075"
             },
             {
+               "name" : "#076",
                "drilldown" : "076",
-               "y" : 101,
-               "name" : "#076"
+               "y" : 101
             },
             {
-               "drilldown" : "077",
+               "name" : "#077",
                "y" : 100,
-               "name" : "#077"
+               "drilldown" : "077"
             },
             {
-               "name" : "#078",
+               "drilldown" : "078",
                "y" : 127,
-               "drilldown" : "078"
+               "name" : "#078"
             },
             {
+               "name" : "#079",
                "drilldown" : "079",
-               "y" : 122,
-               "name" : "#079"
+               "y" : 122
             },
             {
-               "drilldown" : "080",
                "y" : 127,
+               "drilldown" : "080",
                "name" : "#080"
             },
             {
@@ -428,24 +438,24 @@
                "drilldown" : "082"
             },
             {
-               "drilldown" : "083",
                "name" : "#083",
+               "drilldown" : "083",
                "y" : 127
             },
             {
-               "drilldown" : "084",
                "name" : "#084",
-               "y" : 119
+               "y" : 119,
+               "drilldown" : "084"
             },
             {
-               "y" : 113,
                "name" : "#085",
-               "drilldown" : "085"
+               "drilldown" : "085",
+               "y" : 113
             },
             {
                "name" : "#086",
-               "y" : 104,
-               "drilldown" : "086"
+               "drilldown" : "086",