- Added solutions by Konstantinos Giannakakis.

14 files changed, 1316 insertions, 1292 deletions

diff --git a/members.json b/members.json
index 03fefeecb3..77e089448a 100644
--- a/members.json
+++ b/members.json
@@ -108,6 +108,7 @@
     "kiran-kumar"           : "Kiran Kumar",
     "kjetillll"             : "kjetillll",
     "kordaff"               : "Phillip Hartfield Sr",
+    "kostas-giannakakis"    : "Konstantinos Giannakakis",
     "kurkale6ka"            : "Dimitar Dimitrov",
     "lakpatashi"            : "Lakpa Tashi Bhutia",
     "lance-wicks"           : "Lance Wicks",
diff --git a/stats/pwc-current.json b/stats/pwc-current.json
index 0beee95c84..af6a64ae2e 100644
--- a/stats/pwc-current.json
+++ b/stats/pwc-current.json
@@ -1,20 +1,7 @@
 {
-   "plotOptions" : {
-      "series" : {
-         "dataLabels" : {
-            "format" : "{point.y}",
-            "enabled" : 1
-         },
-         "borderWidth" : 0
-      }
-   },
-   "legend" : {
-      "enabled" : 0
-   },
    "drilldown" : {
       "series" : [
          {
-            "id" : "Andinus",
             "name" : "Andinus",
             "data" : [
                [
@@ -25,11 +12,12 @@
                   "Blog",
                   2
                ]
-            ]
+            ],
+            "id" : "Andinus"
          },
          {
-            "name" : "Andrew Shitov",
             "id" : "Andrew Shitov",
+            "name" : "Andrew Shitov",
             "data" : [
                [
                   "Raku",
@@ -38,16 +26,17 @@
             ]
          },
          {
-            "name" : "Cristina Heredia",
             "id" : "Cristina Heredia",
             "data" : [
                [
                   "Perl",
                   1
                ]
-            ]
+            ],
+            "name" : "Cristina Heredia"
          },
          {
+            "name" : "Dave Jacoby",
             "data" : [
                [
                   "Perl",
@@ -58,12 +47,9 @@
                   1
                ]
             ],
-            "name" : "Dave Jacoby",
             "id" : "Dave Jacoby"
          },
          {
-            "name" : "Flavio Poletti",
-            "id" : "Flavio Poletti",
             "data" : [
                [
                   "Perl",
@@ -77,9 +63,12 @@
                   "Blog",
                   2
                ]
-            ]
+            ],
+            "name" : "Flavio Poletti",
+            "id" : "Flavio Poletti"
          },
          {
+            "name" : "James Smith",
             "data" : [
                [
                   "Perl",
@@ -90,20 +79,29 @@
                   1
                ]
             ],
-            "id" : "James Smith",
-            "name" : "James Smith"
+            "id" : "James Smith"
          },
          {
+            "id" : "Jorg Sommrey",
             "data" : [
                [
                   "Perl",
                   2
                ]
             ],
-            "id" : "Jorg Sommrey",
             "name" : "Jorg Sommrey"
          },
          {
+            "id" : "Konstantinos Giannakakis",
+            "name" : "Konstantinos Giannakakis",
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ]
+            ]
+         },
+         {
             "id" : "Laurent Rosenfeld",
             "name" : "Laurent Rosenfeld",
             "data" : [
@@ -122,6 +120,7 @@
             ]
          },
          {
+            "name" : "Luca Ferrari",
             "data" : [
                [
                   "Raku",
@@ -132,50 +131,51 @@
                   2
                ]
             ],
-            "id" : "Luca Ferrari",
-            "name" : "Luca Ferrari"
+            "id" : "Luca Ferrari"
          },
          {
+            "id" : "Mark Anderson",
+            "name" : "Mark Anderson",
             "data" : [
                [
                   "Raku",
                   2
                ]
-            ],
-            "name" : "Mark Anderson",
-            "id" : "Mark Anderson"
+            ]
          },
          {
             "id" : "Matthew Neleigh",
-            "name" : "Matthew Neleigh",
             "data" : [
                [
                   "Perl",
                   2
                ]
-            ]
+            ],
+            "name" : "Matthew Neleigh"
          },
          {
+            "name" : "Olivier Delouya",
             "data" : [
                [
                   "Perl",
                   1
                ]
             ],
-            "id" : "Olivier Delouya",
-            "name" : "Olivier Delouya"
+            "id" : "Olivier Delouya"
          },
          {
+            "name" : "Paul Fajman",
             "data" : [
                [
                   "Perl",
                   2
                ]
             ],
-            "name" : "Paul Fajman",
             "id" : "Paul Fajman"
          },
          {
+            "id" : "Roger Bell_West",
+            "name" : "Roger Bell_West",
             "data" : [
                [
                   "Perl",
@@ -189,9 +189,7 @@
                   "Blog",
                   1
                ]
-            ],
-            "id" : "Roger Bell_West",
-            "name" : "Roger Bell_West"
+            ]
          },
          {
             "id" : "Simon Green",
@@ -208,28 +206,28 @@
             ]
          },
          {
-            "id" : "Simon Proctor",
             "name" : "Simon Proctor",
             "data" : [
                [
                   "Raku",
                   2
                ]
-            ]
+            ],
+            "id" : "Simon Proctor"
          },
          {
-            "id" : "Steven Wilson",
-            "name" : "Steven Wilson",
             "data" : [
                [
                   "Perl",
                   1
                ]
-            ]
+            ],
+            "name" : "Steven Wilson",
+            "id" : "Steven Wilson"
          },
          {
-            "name" : "Stuart Little",
             "id" : "Stuart Little",
+            "name" : "Stuart Little",
             "data" : [
                [
                   "Perl",
@@ -243,7 +241,6 @@
          },
          {
             "name" : "Ulrich Rieke",
-            "id" : "Ulrich Rieke",
             "data" : [
                [
                   "Perl",
@@ -253,11 +250,10 @@
                   "Raku",
                   2
                ]
-            ]
+            ],
+            "id" : "Ulrich Rieke"
          },
          {
-            "name" : "W. Luis Mochan",
-            "id" : "W. Luis Mochan",
             "data" : [
                [
                   "Perl",
@@ -267,32 +263,25 @@
                   "Blog",
                   1
                ]
-            ]
+            ],
+            "name" : "W. Luis Mochan",
+            "id" : "W. Luis Mochan"
          }
       ]
    },
-   "yAxis" : {
-      "title" : {
-         "text" : "Total Solutions"
-      }
-   },
-   "subtitle" : {
-      "text" : "[Champions: 20] Last updated at 2021-08-20 23:06:58 GMT"
+   "title" : {
+      "text" : "The Weekly Challenge - 126"
    },
-   "tooltip" : {
-      "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/>",
-      "followPointer" : 1
+   "legend" : {
+      "enabled" : 0
    },
    "series" : [
       {
-         "name" : "The Weekly Challenge - 126",
-         "colorByPoint" : 1,
          "data" : [
             {
-               "y" : 4,
                "drilldown" : "Andinus",
-               "name" : "Andinus"
+               "name" : "Andinus",
+               "y" : 4
             },
             {
                "name" : "Andrew Shitov",
@@ -301,28 +290,33 @@
             },
             {
                "name" : "Cristina Heredia",
-               "y" : 1,
-               "drilldown" : "Cristina Heredia"
+               "drilldown" : "Cristina Heredia",
+               "y" : 1
             },
             {
-               "name" : "Dave Jacoby",
                "drilldown" : "Dave Jacoby",
+               "name" : "Dave Jacoby",
                "y" : 3
             },
             {
-               "y" : 6,
                "drilldown" : "Flavio Poletti",
-               "name" : "Flavio Poletti"
+               "name" : "Flavio Poletti",
+               "y" : 6
             },
             {
-               "name" : "James Smith",
                "y" : 3,
-               "drilldown" : "James Smith"
+               "drilldown" : "James Smith",
+               "name" : "James Smith"
+            },
+            {
+               "y" : 2,
+               "name" : "Jorg Sommrey",
+               "drilldown" : "Jorg Sommrey"
             },
             {
-               "drilldown" : "Jorg Sommrey",
                "y" : 2,
-               "name" : "Jorg Sommrey"
+               "drilldown" : "Konstantinos Giannakakis",
+               "name" : "Konstantinos Giannakakis"
             },
             {
                "name" : "Laurent Rosenfeld",
@@ -331,74 +325,95 @@
             },
             {
                "name" : "Luca Ferrari",
-               "y" : 4,
-               "drilldown" : "Luca Ferrari"
+               "drilldown" : "Luca Ferrari",
+               "y" : 4
             },
             {
+               "drilldown" : "Mark Anderson",
                "name" : "Mark Anderson",
-               "y" : 2,
-               "drilldown" : "Mark Anderson"
+               "y" : 2
             },
             {
-               "name" : "Matthew Neleigh",
                "drilldown" : "Matthew Neleigh",
+               "name" : "Matthew Neleigh",
                "y" : 2
             },
             {
                "drilldown" : "Olivier Delouya",
-               "y" : 1,
-               "name" : "Olivier Delouya"
+               "name" : "Olivier Delouya",
+               "y" : 1
             },
             {
-               "name" : "Paul Fajman",
                "drilldown" : "Paul Fajman",
+               "name" : "Paul Fajman",
                "y" : 2
             },
             {
                "drilldown" : "Roger Bell_West",
-               "y" : 5,
-               "name" : "Roger Bell_West"
+               "name" : "Roger Bell_West",
+               "y" : 5
             },
             {
                "drilldown" : "Simon Green",
-               "y" : 3,
-               "name" : "Simon Green"
+               "name" : "Simon Green",
+               "y" : 3
             },
             {
-               "name" : "Simon Proctor",
                "drilldown" : "Simon Proctor",
+               "name" : "Simon Proctor",
                "y" : 2
             },
             {
-               "name" : "Steven Wilson",
                "drilldown" : "Steven Wilson",
+               "name" : "Steven Wilson",
                "y" : 1
             },
             {
-               "name" : "Stuart Little",
                "y" : 4,
-               "drilldown" : "Stuart Little"
+               "drilldown" : "Stuart Little",
+               "name" : "Stuart Little"
             },
             {
+               "drilldown" : "Ulrich Rieke",
                "name" : "Ulrich Rieke",
-               "y" : 4,
-               "drilldown" : "Ulrich Rieke"
+               "y" : 4
             },
             {
-               "name" : "W. Luis Mochan",
                "y" : 3,
+               "name" : "W. Luis Mochan",
                "drilldown" : "W. Luis Mochan"
             }
-         ]
+         ],
+         "colorByPoint" : 1,
+         "name" : "The Weekly Challenge - 126"
       }
    ],
-   "title" : {
-      "text" : "The Weekly Challenge - 126"
-   },
    "xAxis" : {
       "type" : "category"
    },
+   "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: 21] Last updated at 2021-08-20 23:32:49 GMT"
+   },
+   "plotOptions" : {
+      "series" : {
+         "dataLabels" : {
+            "enabled" : 1,
+            "format" : "{point.y}"
+         },
+         "borderWidth" : 0
+      }
+   },
    "chart" : {
       "type" : "column"
+   },
+   "yAxis" : {
+      "title" : {
+         "text" : "Total Solutions"
+      }
    }
 }
diff --git a/stats/pwc-language-breakdown-summary.json b/stats/pwc-language-breakdown-summary.json
index 835e89188e..1bee46cdc1 100644
--- a/stats/pwc-language-breakdown-summary.json
+++ b/stats/pwc-language-breakdown-summary.json
@@ -1,6 +1,6 @@
 {
-   "chart" : {
-      "type" : "column"
+   "legend" : {
+      "enabled" : "false"
    },
    "title" : {
       "text" : "The Weekly Challenge Contributions [2019 - 2021]"
@@ -14,27 +14,8 @@
       },
       "type" : "category"
    },
-   "subtitle" : {
-      "text" : "Last updated at 2021-08-20 23:06:58 GMT"
-   },
-   "tooltip" : {
-      "pointFormat" : "<b>{point.y:.0f}</b>"
-   },
    "series" : [
       {
-         "name" : "Contributions",
-         "dataLabels" : {
-            "align" : "right",
-            "y" : 10,
-            "format" : "{point.y:.0f}",
-            "enabled" : "true",
-            "color" : "#FFFFFF",
-            "rotation" : -90,
-            "style" : {
-               "fontFamily" : "Verdana, sans-serif",
-               "fontSize" : "13px"
-            }
-         },
          "data" : [
             [
                "Blog",
@@ -42,22 +23,41 @@
             ],
             [
                "Perl",
-               6014
+               6016
             ],
             [
                "Raku",
                3744
             ]
-         ]
+         ],
+         "name" : "Contributions",
+         "dataLabels" : {
+            "format" : "{point.y:.0f}",
+            "rotation" : -90,
+            "y" : 10,
+            "enabled" : "true",
+            "align" : "right",
+            "style" : {
+               "fontSize" : "13px",
+               "fontFamily" : "Verdana, sans-serif"
+            },
+            "color" : "#FFFFFF"
+         }
       }
    ],
+   "chart" : {
+      "type" : "column"
+   },
+   "tooltip" : {
+      "pointFormat" : "<b>{point.y:.0f}</b>"
+   },
+   "subtitle" : {
+      "text" : "Last updated at 2021-08-20 23:32:49 GMT"
+   },
    "yAxis" : {
       "min" : 0,
       "title" : {
          "text" : null
       }
-   },
-   "legend" : {
-      "enabled" : "false"
    }
 }
diff --git a/stats/pwc-language-breakdown.json b/stats/pwc-language-breakdown.json
index 2451eb1065..630e3a4716 100644
--- a/stats/pwc-language-breakdown.json
+++ b/stats/pwc-language-breakdown.json
@@ -16,12 +16,12 @@
                   11
                ]
             ],
-            "id" : "001",
-            "name" : "001"
+            "name" : "001",
+            "id" : "001"
          },
          {
-            "name" : "002",
             "id" : "002",
+            "name" : "002",
             "data" : [
                [
                   "Perl",
@@ -39,7 +39,6 @@
          },
          {
             "id" : "003",
-            "name" : "003",
             "data" : [
                [
                   "Perl",
@@ -53,7 +52,8 @@
                   "Blog",
                   9
                ]
-            ]
+            ],
+            "name" : "003"
          },
          {
             "data" : [
@@ -74,7 +74,6 @@
             "id" : "004"
          },
          {
-            "id" : "005",
             "name" : "005",
             "data" : [
                [
@@ -89,9 +88,12 @@
                   "Blog",
                   12
                ]
-            ]
+            ],
+            "id" : "005"
          },
          {
+            "id" : "006",
+            "name" : "006",
             "data" : [
                [
                   "Perl",
@@ -105,12 +107,9 @@
                   "Blog",
                   7
                ]
-            ],
-            "id" : "006",
-            "name" : "006"
+            ]
          },
          {
-            "id" : "007",
             "name" : "007",
             "data" : [
                [
@@ -125,7 +124,8 @@
                   "Blog",
                   10
                ]
-            ]
+            ],
+            "id" : "007"
          },
          {
             "data" : [
@@ -146,6 +146,7 @@
             "id" : "008"
          },
          {
+            "name" : "009",
             "data" : [
                [
                   "Perl",
@@ -160,10 +161,11 @@
                   13
                ]
             ],
-            "id" : "009",
-            "name" : "009"
+            "id" : "009"
          },
          {
+            "id" : "010",
+            "name" : "010",
             "data" : [
                [
                   "Perl",
@@ -177,12 +179,9 @@
                   "Blog",
                   11
                ]
-            ],
-            "id" : "010",
-            "name" : "010"
+            ]
          },
          {
-            "name" : "011",
             "id" : "011",
             "data" : [
                [
@@ -197,9 +196,12 @@
                   "Blog",
                   10
                ]
-            ]
+            ],
+            "name" : "011"
          },
          {
+            "id" : "012",
+            "name" : "012",
             "data" : [
                [
                   "Perl",
@@ -213,13 +215,10 @@
                   "Blog",
                   11
                ]
-            ],
-            "name" : "012",
-            "id" : "012"
+            ]
          },
          {
             "name" : "013",
-            "id" : "013",
             "data" : [
                [
                   "Perl",
@@ -233,11 +232,11 @@
                   "Blog",
                   13
                ]
-            ]
+            ],
+            "id" : "013"
          },
          {
             "name" : "014",
-            "id" : "014",
             "data" : [
                [
                   "Perl",
@@ -251,9 +250,11 @@
                   "Blog",
                   15
                ]
-            ]
+            ],
+            "id" : "014"
          },
          {
+            "name" : "015",
             "data" : [
                [
                   "Perl",
@@ -268,12 +269,10 @@
                   15
                ]
             ],
-            "id" : "015",
-            "name" : "015"
+            "id" : "015"
          },
          {
             "name" : "016",
-            "id" : "016",
             "data" : [
                [
                   "Perl",
@@ -287,11 +286,11 @@
                   "Blog",
                   12
                ]
-            ]
+            ],
+            "id" : "016"
          },
          {
             "id" : "017",
-            "name" : "017",
             "data" : [
                [
                   "Perl",
@@ -305,9 +304,12 @@
                   "Blog",
                   12
                ]
-            ]
+            ],
+            "name" : "017"
          },
          {
+            "id" : "018",
+            "name" : "018",
             "data" : [
                [
                   "Perl",
@@ -321,11 +323,11 @@
                   "Blog",
                   14
                ]
-            ],
-            "name" : "018",
-            "id" : "018"
+            ]
          },
          {
+            "id" : "019",
+            "name" : "019",
             "data" : [
                [
                   "Perl",
@@ -339,13 +341,9 @@
                   "Blog",
                   13
                ]
-            ],
-            "id" : "019",
-            "name" : "019"
+            ]
          },
          {
-            "id" : "020",
-            "name" : "020",
             "data" : [
                [
                   "Perl",
@@ -359,11 +357,13 @@
                   "Blog",
                   13
                ]
-            ]
+            ],
+            "name" : "020",
+            "id" : "020"
          },
          {
-            "name" : "021",
             "id" : "021",
+            "name" : "021",
             "data" : [
                [
                   "Perl",
@@ -381,7 +381,6 @@
          },
          {
             "id" : "022",
-            "name" : "022",
             "data" : [
                [
                   "Perl",
@@ -395,11 +394,12 @@
                   "Blog",
                   10
                ]
-            ]
+            ],
+            "name" : "022"
          },
          {
-            "name" : "023",
             "id" : "023",
+            "name" : "023",
             "data" : [
                [
                   "Perl",
@@ -416,6 +416,8 @@
             ]
          },
          {
+            "id" : "024",
+            "name" : "024",
             "data" : [
                [
                   "Perl",
@@ -429,11 +431,10 @@
                   "Blog",
                   11
                ]
-            ],
-            "id" : "024",
-            "name" : "024"
+            ]
          },
          {
+            "name" : "025",
             "data" : [
                [
                   "Perl",
@@ -448,12 +449,10 @@
                   12
                ]
             ],
-            "name" : "025",
             "id" : "025"
          },
          {
             "id" : "026",
-            "name" : "026",
             "data" : [
                [
                   "Perl",
@@ -467,11 +466,10 @@
                   "Blog",
                   10
                ]
-            ]
+            ],
+            "name" : "026"
          },
          {
-            "name" : "027",
-            "id" : "027",
             "data" : [
                [
                   "Perl",
@@ -485,11 +483,12 @@
                   "Blog",
                   9
                ]
-            ]
+            ],
+            "name" : "027",
+            "id" : "027"
          },
          {
             "id" : "028",
-            "name" : "028",
             "data" : [
                [
                   "Perl",
@@ -503,11 +502,10 @@
                   "Blog",
                   9
                ]
-            ]
+            ],
+            "name" : "028"
          },
          {
-            "name" : "029",
-            "id" : "029",
             "data" : [
                [
                   "Perl",
@@ -521,9 +519,12 @@
                   "Blog",
                   12
                ]
-            ]
+            ],
+            "name" : "029",
+            "id" : "029"
          },
          {
+            "name" : "030",
             "data" : [
                [
                   "Perl",
@@ -538,10 +539,10 @@
                   10
                ]
             ],
-            "name" : "030",
             "id" : "030"
          },
          {
+            "id" : "031",
             "data" : [
                [
                   "Perl",
@@ -556,8 +557,7 @@
                   9
                ]
             ],
-            "name" : "031",
-            "id" : "031"
+            "name" : "031"
          },
          {
             "data" : [
@@ -578,7 +578,6 @@
             "id" : "032"
          },
          {
-            "id" : "033",
             "name" : "033",
             "data" : [
                [
@@ -593,7 +592,8 @@
                   "Blog",
                   10
                ]
-            ]
+            ],
+            "id" : "033"
          },
          {
             "data" : [
@@ -614,6 +614,8 @@
             "id" : "034"
          },
          {
+            "id" : "035",
+            "name" : "035",
             "data" : [
                [
                   "Perl",
@@ -627,11 +629,10 @@
                   "Blog",
                   9
                ]
-            ],
-            "id" : "035",
-            "name" : "035"
+            ]
          },
          {
+            "name" : "036",
             "data" : [
                [
                   "Perl",
@@ -646,10 +647,11 @@
                   11
                ]
             ],
-            "id" : "036",
-            "name" : "036"
+            "id" : "036"
          },
          {
+            "id" : "037",
+            "name" : "037",
             "data" : [
                [
                   "Perl",
@@ -663,13 +665,10 @@
                   "Blog",
                   9
                ]
-            ],
-            "id" : "037",
-            "name" : "037"
+            ]
          },
          {
             "name" : "038",
-            "id" : "038",
             "data" : [
                [
                   "Perl",
@@ -683,7 +682,8 @@
                   "Blog",
                   12
                ]
-            ]
+            ],
+            "id" : "038"
          },
          {
             "id" : "039",
@@ -705,7 +705,6 @@
          },
          {
             "name" : "040",
-            "id" : "040",
             "data" : [
                [
                   "Perl",
@@ -719,9 +718,12 @@
                   "Blog",
                   10
                ]
-            ]
+            ],
+            "id" : "040"
          },
          {
+            "id" : "041",
+            "name" : "041",
             "data" : [
                [
                   "Perl",
@@ -735,11 +737,10 @@
                   "Blog",
                   9
                ]
-            ],
-            "name" : "041",
-            "id" : "041"
+            ]
          },
          {
+            "id" : "042",
             "data" : [
                [
                   "Perl",
@@ -754,10 +755,11 @@
                   11
                ]
             ],
-            "id" : "042",
             "name" : "042"
          },
          {
+            "id" : "043",
+            "name" : "043",
             "data" : [
                [
                   "Perl",
@@ -771,12 +773,9 @@
                   "Blog",
                   11
                ]
-            ],
-            "id" : "043",
-            "name" : "043"
+            ]
          },
          {
-            "name" : "044",
             "id" : "044",
             "data" : [
                [
@@ -791,9 +790,11 @@
                   "Blog",
                   11
                ]
-            ]
+            ],
+            "name" : "044"
          },
          {
+            "id" : "045",
             "data" : [
                [
                   "Perl",
@@ -808,12 +809,9 @@
                   11
                ]
             ],
-            "id" : "045",
             "name" : "045"
          },
          {
-            "id" : "046",
-            "name" : "046",
             "data" : [
                [
                   "Perl",
@@ -827,10 +825,11 @@
                   "Blog",
                   10
                ]
-            ]