- Added solutions by Saif Ahmed.

12 files changed, 996 insertions, 981 deletions

diff --git a/challenge-042/saiftynet/perl5/ch-1.pl b/challenge-042/saiftynet/perl/ch-1.pl
index 3a4e4bd343..3a4e4bd343 100644
--- a/challenge-042/saiftynet/perl5/ch-1.pl
+++ b/challenge-042/saiftynet/perl/ch-1.pl
diff --git a/challenge-042/saiftynet/perl5/ch-2.pl b/challenge-042/saiftynet/perl/ch-2.pl
index 6b741af435..6b741af435 100644
--- a/challenge-042/saiftynet/perl5/ch-2.pl
+++ b/challenge-042/saiftynet/perl/ch-2.pl
diff --git a/stats/pwc-current.json b/stats/pwc-current.json
index b3ee593018..d2598782d8 100644
--- a/stats/pwc-current.json
+++ b/stats/pwc-current.json
@@ -1,6 +1,25 @@
 {
-   "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
+   },
+   "plotOptions" : {
+      "series" : {
+         "borderWidth" : 0,
+         "dataLabels" : {
+            "enabled" : 1,
+            "format" : "{point.y}"
+         }
+      }
+   },
+   "yAxis" : {
+      "title" : {
+         "text" : "Total Solutions"
+      }
+   },
+   "legend" : {
+      "enabled" : 0
    },
    "drilldown" : {
       "series" : [
@@ -29,24 +48,24 @@
             "name" : "Arne Sommer"
          },
          {
-            "name" : "Daniel Mita",
+            "id" : "Daniel Mita",
             "data" : [
                [
                   "Raku",
                   2
                ]
             ],
-            "id" : "Daniel Mita"
+            "name" : "Daniel Mita"
          },
          {
             "name" : "Duane Powell",
+            "id" : "Duane Powell",
             "data" : [
                [
                   "Perl",
                   2
                ]
-            ],
-            "id" : "Duane Powell"
+            ]
          },
          {
             "id" : "E. Choroba",
@@ -60,17 +79,15 @@
          },
          {
             "id" : "Fabrizio Poggi",
-            "name" : "Fabrizio Poggi",
             "data" : [
                [
                   "Perl",
                   2
                ]
-            ]
+            ],
+            "name" : "Fabrizio Poggi"
          },
          {
-            "id" : "Javier Luque",
-            "name" : "Javier Luque",
             "data" : [
                [
                   "Perl",
@@ -84,41 +101,43 @@
                   "Blog",
                   1
                ]
-            ]
+            ],
+            "id" : "Javier Luque",
+            "name" : "Javier Luque"
          },
          {
-            "id" : "Kivanc Yazan",
             "data" : [
                [
                   "Perl",
                   2
                ]
             ],
+            "id" : "Kivanc Yazan",
             "name" : "Kivanc Yazan"
          },
          {
             "name" : "Markus Holzer",
+            "id" : "Markus Holzer",
             "data" : [
                [
                   "Raku",
                   2
                ]
-            ],
-            "id" : "Markus Holzer"
+            ]
          },
          {
-            "name" : "Nazareno Delucca",
             "data" : [
                [
                   "Perl",
                   2
                ]
             ],
-            "id" : "Nazareno Delucca"
+            "id" : "Nazareno Delucca",
+            "name" : "Nazareno Delucca"
          },
          {
-            "id" : "Roger Bell West",
             "name" : "Roger Bell West",
+            "id" : "Roger Bell West",
             "data" : [
                [
                   "Perl",
@@ -132,7 +151,6 @@
          },
          {
             "id" : "Ruben Westerberg",
-            "name" : "Ruben Westerberg",
             "data" : [
                [
                   "Perl",
@@ -142,6 +160,17 @@
                   "Raku",
                   2
                ]
+            ],
+            "name" : "Ruben Westerberg"
+         },
+         {
+            "name" : "Saif Ahmed",
+            "id" : "Saif Ahmed",
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ]
             ]
          },
          {
@@ -155,69 +184,63 @@
             "name" : "Simon Proctor"
          },
          {
+            "id" : "Ulrich Rieke",
             "data" : [
                [
                   "Raku",
                   2
                ]
             ],
-            "name" : "Ulrich Rieke",
-            "id" : "Ulrich Rieke"
+            "name" : "Ulrich Rieke"
          },
          {
-            "id" : "Walt Mankowski",
-            "name" : "Walt Mankowski",
             "data" : [
                [
                   "Perl",
                   2
                ]
-            ]
+            ],
+            "id" : "Walt Mankowski",
+            "name" : "Walt Mankowski"
          },
          {
-            "id" : "Wanderdoc",
             "data" : [
                [
                   "Perl",
                   2
                ]
             ],
+            "id" : "Wanderdoc",
             "name" : "Wanderdoc"
          }
       ]
    },
-   "subtitle" : {
-      "text" : "[Champions: 16] Last updated at 2020-01-08 11:12:30 GMT"
+   "title" : {
+      "text" : "Perl Weekly Challenge - 042"
    },
-   "plotOptions" : {
-      "series" : {
-         "dataLabels" : {
-            "format" : "{point.y}",
-            "enabled" : 1
-         },
-         "borderWidth" : 0
-      }
+   "subtitle" : {
+      "text" : "[Champions: 17] Last updated at 2020-01-08 11:57:41 GMT"
    },
    "xAxis" : {
       "type" : "category"
    },
-   "yAxis" : {
-      "title" : {
-         "text" : "Total Solutions"
-      }
+   "chart" : {
+      "type" : "column"
    },
    "series" : [
       {
+         "colorByPoint" : 1,
+         "name" : "Perl Weekly Challenge - 042",
          "data" : [
             {
-               "y" : 2,
                "name" : "Alicia Bielsa",
-               "drilldown" : "Alicia Bielsa"
+               "drilldown" : "Alicia Bielsa",
+               "y" : 2
             },
             {
-               "y" : 3,
+               "name" : "Arne Sommer",
                "drilldown" : "Arne Sommer",
-               "name" : "Arne Sommer"
+               "y" : 3
             },
             {
                "y" : 2,
@@ -231,8 +254,8 @@
             },
             {
                "y" : 2,
-               "drilldown" : "E. Choroba",
-               "name" : "E. Choroba"
+               "name" : "E. Choroba",
+               "drilldown" : "E. Choroba"
             },
             {
                "y" : 2,
@@ -245,64 +268,56 @@
                "drilldown" : "Javier Luque"
             },
             {
-               "y" : 2,
+               "name" : "Kivanc Yazan",
                "drilldown" : "Kivanc Yazan",
-               "name" : "Kivanc Yazan"
+               "y" : 2
             },
             {
-               "drilldown" : "Markus Holzer",
                "name" : "Markus Holzer",
+               "drilldown" : "Markus Holzer",
                "y" : 2
             },
             {
-               "y" : 2,
+               "drilldown" : "Nazareno Delucca",
                "name" : "Nazareno Delucca",
-               "drilldown" : "Nazareno Delucca"
+               "y" : 2
             },
             {
-               "drilldown" : "Roger Bell West",
+               "y" : 4,
                "name" : "Roger Bell West",
-               "y" : 4
+               "drilldown" : "Roger Bell West"
             },
             {
-               "drilldown" : "Ruben Westerberg",
                "name" : "Ruben Westerberg",
+               "drilldown" : "Ruben Westerberg",
                "y" : 4
             },
             {
-               "y" : 2,
+               "drilldown" : "Saif Ahmed",
+               "name" : "Saif Ahmed",
+               "y" : 2
+            },
+            {
                "name" : "Simon Proctor",
-               "drilldown" : "Simon Proctor"
+               "drilldown" : "Simon Proctor",
+               "y" : 2
             },
             {
                "y" : 2,
-               "name" : "Ulrich Rieke",
-               "drilldown" : "Ulrich Rieke"
+               "drilldown" : "Ulrich Rieke",
+               "name" : "Ulrich Rieke"
             },
             {
-               "y" : 2,
                "name" : "Walt Mankowski",
-               "drilldown" : "Walt Mankowski"
+               "drilldown" : "Walt Mankowski",
+               "y" : 2
             },
             {
-               "y" : 2,
+               "name" : "Wanderdoc",
                "drilldown" : "Wanderdoc",
-               "name" : "Wanderdoc"
+               "y" : 2
             }
-         ],
-         "name" : "Perl Weekly Challenge - 042",
-         "colorByPoint" : 1
+         ]
       }
-   ],
-   "legend" : {
-      "enabled" : 0
-   },
-   "title" : {
-      "text" : "Perl Weekly Challenge - 042"
-   },
-   "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/>"
-   }
+   ]
 }
diff --git a/stats/pwc-language-breakdown-summary.json b/stats/pwc-language-breakdown-summary.json
index 997fd8be34..2a4c299895 100644
--- a/stats/pwc-language-breakdown-summary.json
+++ b/stats/pwc-language-breakdown-summary.json
@@ -1,12 +1,25 @@
 {
+   "title" : {
+      "text" : "Perl Weekly Challenge Contributions [2019 - 2020]"
+   },
+   "subtitle" : {
+      "text" : "Last updated at 2020-01-08 11:57:41 GMT"
+   },
+   "legend" : {
+      "enabled" : "false"
+   },
    "yAxis" : {
-      "min" : 0,
       "title" : {
          "text" : null
-      }
+      },
+      "min" : 0
+   },
+   "tooltip" : {
+      "pointFormat" : "<b>{point.y:.0f}</b>"
    },
    "series" : [
       {
+         "name" : "Contributions",
          "data" : [
             [
                "Blog",
@@ -14,50 +27,37 @@
             ],
             [
                "Perl",
-               1710
+               1712
             ],
             [
                "Raku",
                1034
             ]
          ],
-         "name" : "Contributions",
          "dataLabels" : {
-            "format" : "{point.y:.0f}",
-            "align" : "right",
-            "enabled" : "true",
             "color" : "#FFFFFF",
+            "align" : "right",
             "rotation" : -90,
+            "enabled" : "true",
+            "y" : 10,
+            "format" : "{point.y:.0f}",
             "style" : {
-               "fontFamily" : "Verdana, sans-serif",
-               "fontSize" : "13px"
-            },
-            "y" : 10
+               "fontSize" : "13px",
+               "fontFamily" : "Verdana, sans-serif"
+            }
          }
       }
    ],
-   "legend" : {
-      "enabled" : "false"
-   },
-   "tooltip" : {
-      "pointFormat" : "<b>{point.y:.0f}</b>"
-   },
-   "title" : {
-      "text" : "Perl Weekly Challenge Contributions [2019 - 2020]"
-   },
    "chart" : {
       "type" : "column"
    },
-   "subtitle" : {
-      "text" : "Last updated at 2020-01-08 11:12:30 GMT"
-   },
    "xAxis" : {
-      "type" : "category",
       "labels" : {
          "style" : {
-            "fontFamily" : "Verdana, sans-serif",
-            "fontSize" : "13px"
+            "fontSize" : "13px",
+            "fontFamily" : "Verdana, sans-serif"
          }
-      }
+      },
+      "type" : "category"
    }
 }
diff --git a/stats/pwc-language-breakdown.json b/stats/pwc-language-breakdown.json
index 43792588a7..827eb70410 100644
--- a/stats/pwc-language-breakdown.json
+++ b/stats/pwc-language-breakdown.json
@@ -1,22 +1,30 @@
 {
-   "xAxis" : {
-      "type" : "category"
-   },
-   "subtitle" : {
-      "text" : "Click the columns to drilldown the language breakdown. Last updated at 2020-01-08 11:12:30 GMT"
+   "tooltip" : {
+      "headerFormat" : "<span style=\"font-size:11px\"></span>",
+      "pointFormat" : "<span style=\"color:{point.color}\">Challenge {point.name}</span>: <b>{point.y:f}</b><br/>",
+      "followPointer" : "true"
    },
    "plotOptions" : {
       "series" : {
+         "borderWidth" : 0,
          "dataLabels" : {
-            "enabled" : 1,
-            "format" : "{point.y}"
-         },
-         "borderWidth" : 0
+            "format" : "{point.y}",
+            "enabled" : 1
+         }
       }
    },
+   "yAxis" : {
+      "title" : {
+         "text" : "Total Solutions"
+      }
+   },
+   "legend" : {
+      "enabled" : "false"
+   },
    "drilldown" : {
       "series" : [
          {
+            "name" : "001",
             "data" : [
                [
                   "Perl",
@@ -31,11 +39,11 @@
                   11
                ]
             ],
-            "name" : "001",
             "id" : "001"
          },
          {
             "name" : "002",
+            "id" : "002",
             "data" : [
                [
                   "Perl",
@@ -49,11 +57,11 @@
                   "Blog",
                   10
                ]
-            ],
-            "id" : "002"
+            ]
          },
          {
             "name" : "003",
+            "id" : "003",
             "data" : [
                [
                   "Perl",
@@ -67,8 +75,7 @@
                   "Blog",
                   9
                ]
-            ],
-            "id" : "003"
+            ]
          },
          {
             "id" : "004",
@@ -90,6 +97,7 @@
          },
          {
             "name" : "005",
+            "id" : "005",
             "data" : [
                [
                   "Perl",
@@ -103,10 +111,10 @@
                   "Blog",
                   12
                ]
-            ],
-            "id" : "005"
+            ]
          },
          {
+            "name" : "006",
             "id" : "006",
             "data" : [
                [
@@ -121,12 +129,10 @@
                   "Blog",
                   7
                ]
-            ],
-            "name" : "006"
+            ]
          },
          {
             "id" : "007",
-            "name" : "007",
             "data" : [
                [
                   "Perl",
@@ -140,9 +146,11 @@
                   "Blog",
                   10
                ]
-            ]
+            ],
+            "name" : "007"
          },
          {
+            "id" : "008",
             "data" : [
                [
                   "Perl",
@@ -157,12 +165,11 @@
                   12
                ]
             ],
-            "name" : "008",
-            "id" : "008"
+            "name" : "008"
          },
          {
-            "id" : "009",
             "name" : "009",
+            "id" : "009",
             "data" : [
                [
                   "Perl",
@@ -197,7 +204,6 @@
             "id" : "010"
          },
          {
-            "id" : "011",
             "name" : "011",
             "data" : [
                [
@@ -212,10 +218,12 @@
                   "Blog",
                   10
                ]
-            ]
+            ],
+            "id" : "011"
          },
          {
             "name" : "012",
+            "id" : "012",
             "data" : [
                [
                   "Perl",
@@ -229,11 +237,10 @@
                   "Blog",
                   11
                ]
-            ],
-            "id" : "012"
+            ]
          },
          {
-            "name" : "013",
+            "id" : "013",
             "data" : [
                [
                   "Perl",
@@ -248,11 +255,10 @@
                   13
                ]
             ],
-            "id" : "013"
+            "name" : "013"
          },
          {
             "id" : "014",
-            "name" : "014",
             "data" : [
                [
                   "Perl",
@@ -266,10 +272,12 @@
                   "Blog",
                   15
                ]
-            ]
+            ],
+            "name" : "014"
          },
          {
             "name" : "015",
+            "id" : "015",
             "data" : [
                [
                   "Perl",
@@ -283,11 +291,9 @@
                   "Blog",
                   15
                ]
-            ],
-            "id" : "015"
+            ]
          },
          {
-            "name" : "016",
             "data" : [
                [
                   "Perl",
@@ -302,9 +308,12 @@
                   12
                ]
             ],
-            "id" : "016"
+            "id" : "016",
+            "name" : "016"
          },
          {
+            "name" : "017",
+            "id" : "017",
             "data" : [
                [
                   "Perl",
@@ -318,12 +327,9 @@
                   "Blog",
                   12
                ]
-            ],
-            "name" : "017",
-            "id" : "017"
+            ]
          },
          {
-            "id" : "018",
             "name" : "018",
             "data" : [
                [
@@ -338,7 +344,8 @@
                   "Blog",
                   14
                ]
-            ]
+            ],
+            "id" : "018"
          },
          {
             "id" : "019",
@@ -359,8 +366,8 @@
             "name" : "019"
          },
          {
-            "id" : "020",
             "name" : "020",
+            "id" : "020",
             "data" : [
                [
                   "Perl",
@@ -377,7 +384,7 @@
             ]
          },
          {
-            "name" : "021",
+            "id" : "021",
             "data" : [
                [
                   "Perl",
@@ -392,9 +399,11 @@
                   10
                ]
             ],
-            "id" : "021"
+            "name" : "021"
          },
          {
+            "name" : "022",
+            "id" : "022",
             "data" : [
                [
                   "Perl",
@@ -408,12 +417,9 @@
                   "Blog",
                   10
                ]
-            ],
-            "name" : "022",
-            "id" : "022"
+            ]
          },
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-            "id" : "023",
             "name" : "023",
             "data" : [
                [
@@ -428,11 +434,12 @@
                   "Blog",
                   12
                ]
-            ]
+            ],
+            "id" : "023"
          },
          {
-            "id" : "024",
             "name" : "024",
+            "id" : "024",
             "data" : [
                [
                   "Perl",
@@ -463,11 +470,11 @@
                   12
                ]
             ],
-            "name" : "025",
-            "id" : "025"
+            "id" : "025",
+            "name" : "025"
          },
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-            "id" : "026",
+            "name" : "026",
             "data" : [
                [
                   "Perl",
@@ -482,9 +489,10 @@
                   10
                ]
             ],
-            "name" : "026"
+            "id" : "026"
          },
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+            "name" : "027",
             "id" : "027",
             "data" : [
                [
@@ -499,11 +507,11 @@
                   "Blog",
                   9
                ]
-            ],
-            "name" : "027"
+            ]
          },
          {
             "name" : "028",
+            "id" : "028",
             "data" : [
                [
                   "Perl",
@@ -517,12 +525,11 @@
                   "Blog",
                   9
                ]
-            ],
-            "id" : "028"
+            ]
          },
          {
-            "id" : "029",
             "name" : "029",
+            "id" : "029",
             "data" : [
                [
                   "Perl",
@@ -540,6 +547,7 @@
          },
          {
             "name" : "030",
+            "id" : "030",
             "data" : [
                [
                   "Perl",
@@ -553,12 +561,11 @@
                   "Blog",
                   10
                ]
-            ],
-            "id" : "030"
+            ]
          },
          {
-            "id" : "031",
             "name" : "031",
+            "id" : "031",
             "data" : [
                [
                   "Perl",
@@ -575,8 +582,8 @@
             ]
          },
          {
-            "id" : "032",
             "name" : "032",
+            "id" : "032",
             "data" : [
                [
                   "Perl",
@@ -594,7 +601,6 @@
          },
          {
             "id" : "033",
-            "name" : "033",
             "data" : [
                [
                   "Perl",
@@ -608,7 +614,8 @@
                   "Blog",
                   10
                ]
-            ]
+            ],
+            "name" : "033"
          },
          {
             "data" : [
@@ -625,8 +632,8 @@
                   11
                ]
             ],
-            "name" : "034",
-            "id" : "034"
+            "id" : "034",
+            "name" : "034"
          },
          {
             "name" : "035",
@@ -661,12 +668,10 @@
                   10
                ]
             ],
-            "name" : "036",
-            "id" : "036"
+            "id" : "036",
+            "name" : "036"
          },
          {
-            "id" : "037",
-            "name" : "037",
             "data" : [
                [
                   "Perl",
@@ -680,11 +685,12 @@
                   "Blog",
                   9
                ]
-            ]
+            ],
+            "id" : "037",
+            "name" : "037"
          },
          {
             "id" : "038",
-            "name" : "038",
             "data" : [
                [
                   "Perl",
@@ -698,10 +704,10 @@
                   "Blog",
                   11
                ]
-            ]
+            ],
+            "name" : "038"
          },
          {
-            "id" : "039",
             "data" : [
                [
                   "Perl",
@@ -716,10 +722,10 @@
                   12
                ]
             ],
+            "id" : "039",
             "name" : "039"
          },
          {
-            "id" : "040",
             "name" : "040",
             "data" : [
                [
@@ -734,11 +740,11 @@
                   "Blog",
                   9
                ]
-            ]
+            ],
+            "id" : "040"
          },
          {
             "id" : "041",
-            "name" : "041",
             "data" : [
                [
                   "Perl",
@@ -752,15 +758,16 @@
                   "Blog",
                   6
                ]
-            ]
+            ],
+            "name" : "041"
          },
          {
-            "id" : "042",
             "name" : "042",
+            "id" : "042",
             "data" : [
                [
                   "Perl",
-                  22
+                  24
                ],
                [
                   "Raku",
@@ -774,33 +781,32 @@
          }
       ]
    },
-   "chart" : {
-      "type" : "column"
+   "subtitle" : {
+      "text" : "Click the columns to drilldown the language breakdown. Last updated at 2020-01-08 11:57:41 GMT"
    },
    "title" : {
       "text" : "Perl Weekly Challenge Language"
    },
-   "tooltip" : {
-      "headerFormat" : "<span style=\"font-size:11px\"></span>",
-      "followPointer" : "true",
-      "pointFormat" : "<span style=\"color:{point.color}\">Challenge {point.name}</span>: <b>{point.y:f}</b><br/>"
+   "xAxis" : {
+      "type" : "category"
    },
-   "legend" : {
-      "enabled" : "false"
+   "chart" : {
+      "type" : "column"
    },
    "series" : [
       {
          "colorByPoint" : "true",
+         "name" : "Perl Weekly Challenge Languages",
          "data" : [
             {
-               "name" : "#001",
+               "y" : 140,
                "drilldown" : "001",
-               "y" : 140
+               "name" : "#001"
             },
             {
                "y" : 109,
-               "drilldown" : "002",
-               "name" : "#002"
+               "name" : "#002",
+               "drilldown" : "002"
             },
             {
                "y" : 71,
@@ -809,13 +815,13 @@
             },
             {
                "y" : 91,
-               "name" : "#004",
-               "drilldown" : "004"
+               "drilldown" : "004",
+               "name" : "#004"
             },
             {
-               "y" : 71,
                "name" : "#005",
-               "drilldown" : "005"
+               "drilldown" : "005",
+               "y" : 71
             },
             {
                "y" : 48,
@@ -824,27 +830,27 @@
             },
             {
                "y" : 56,
-               "name" : "#007",
-               "drilldown" : "007"
+               "drilldown" : "007",
+               "name" : "#007"
             },
             {
-               "y" : 70,
                "name" : "#008",
-               "drilldown" : "008"
+               "drilldown" : "008",
+               "y" : 70
             },
             {
-               "name" : "#009",
+               "y" : 68,
                "drilldown" : "009",
-               "y" : 68
+               "name" : "#009"
             },
             {
-               "drilldown" : "010",
                "name" : "#010",
+               "drilldown" : "010",
                "y" : 60
             },
             {
-               "drilldown" : "011",
                "name" : "#011",
+               "drilldown" : "011",
                "y" : 79
             },
             {
@@ -853,9 +859,9 @@
                "drilldown" : "012"
             },
             {
+               "y" : 76,
                "drilldown" : "013",
-               "name" : "#013",
-               "y" : 76
+               "name" : "#013"
             },
             {
                "drilldown" : "014",
@@ -864,13 +870,13 @@
             },
             {
                "y" : 93,
-               "name" : "#015",
-               "drilldown" : "015"
+               "drilldown" : "015",
+               "name" : "#015"
             },
             {
                "y" : 66,
-               "drilldown" : "016",
-               "name" : "#016"
+               "name" : "#016",
+               "drilldown" : "016"
             },
             {
                "drilldown" : "017",
@@ -894,58 +900,58 @@
             },
             {
                "y" : 67,
-               "drilldown" : "021",
-               "name" : "#021"
+               "name" : "#021",
+               "drilldown" : "021"
             },
             {
-               "y" : 63,
+               "name" : "#022",
                "drilldown" : "022",
-               "name" : "#022"
+               "y" : 63
             },
             {
-               "y" : 91,
                "name" : "#023",
-               "drilldown" : "023"
+               "drilldown" : "023",
+               "y" : 91
             },
             {
-               "name" : "#024",
+               "y" : 70,
                "drilldown" : "024",
-               "y" : 70
+               "name" : "#024"
             },
             {
-               "y" : 55,
+               "name" : "#025",