- Added Perl solution to task 2 of week 100.

14 files changed, 1279 insertions, 1249 deletions

diff --git a/challenge-100/mohammad-anwar/perl/ch-2.pl b/challenge-100/mohammad-anwar/perl/ch-2.pl
new file mode 100644
index 0000000000..6004c09e43
--- /dev/null
+++ b/challenge-100/mohammad-anwar/perl/ch-2.pl
@@ -0,0 +1,30 @@
+#!/usr/bin/perl
+
+use strict;
+use warnings;
+
+use Test::More;
+
+is(sum([[1], [2,4], [6,4,9], [5,1,7,2]]), 8);
+is(sum([[3], [3,1], [5,2,3], [4,3,1,3]]), 7);
+
+done_testing;
+
+sub sum {
+    my ($t) = @_;
+
+    my $i = 0;
+    my $s = [ $t->[0]->[$i] ];
+    shift @$t;
+    foreach my $r (@$t) {
+        push @$s,
+        ($r->[$i] > $r->[$i+1])
+        ?($i+=2 and $r->[--$i])
+        :($r->[$i]);
+    }
+
+    my $sum = 0;
+    $sum += $_ for @$s;
+
+    return $sum;
+}
diff --git a/stats/pwc-current.json b/stats/pwc-current.json
index 411414a7ef..e62d7a178e 100644
--- a/stats/pwc-current.json
+++ b/stats/pwc-current.json
@@ -1,36 +1,43 @@
 {
-   "xAxis" : {
-      "type" : "category"
+   "tooltip" : {
+      "followPointer" : 1,
+      "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/>"
+   },
+   "subtitle" : {
+      "text" : "[Champions: 16] Last updated at 2021-02-16 21:53:00 GMT"
+   },
+   "title" : {
+      "text" : "Perl Weekly Challenge - 100"
    },
    "series" : [
       {
-         "name" : "Perl Weekly Challenge - 100",
          "colorByPoint" : 1,
          "data" : [
             {
                "y" : 2,
-               "name" : "Alexander Karelas",
-               "drilldown" : "Alexander Karelas"
+               "drilldown" : "Alexander Karelas",
+               "name" : "Alexander Karelas"
             },
             {
-               "drilldown" : "Gustavo Chaves",
                "name" : "Gustavo Chaves",
+               "drilldown" : "Gustavo Chaves",
                "y" : 2
             },
             {
-               "drilldown" : "James Smith",
                "name" : "James Smith",
-               "y" : 3
+               "y" : 3,
+               "drilldown" : "James Smith"
             },
             {
+               "y" : 1,
                "drilldown" : "Lance Wicks",
-               "name" : "Lance Wicks",
-               "y" : 1
+               "name" : "Lance Wicks"
             },
             {
-               "y" : 4,
                "name" : "Luca Ferrari",
-               "drilldown" : "Luca Ferrari"
+               "drilldown" : "Luca Ferrari",
+               "y" : 4
             },
             {
                "y" : 1,
@@ -38,44 +45,44 @@
                "name" : "Mark Anderson"
             },
             {
-               "drilldown" : "Mohammad S Anwar",
                "name" : "Mohammad S Anwar",
-               "y" : 1
+               "y" : 2,
+               "drilldown" : "Mohammad S Anwar"
             },
             {
-               "name" : "Paulo Custodio",
+               "y" : 2,
                "drilldown" : "Paulo Custodio",
-               "y" : 2
+               "name" : "Paulo Custodio"
             },
             {
-               "y" : 2,
+               "name" : "Pete Houston",
                "drilldown" : "Pete Houston",
-               "name" : "Pete Houston"
+               "y" : 2
             },
             {
                "y" : 4,
-               "name" : "Roger Bell_West",
-               "drilldown" : "Roger Bell_West"
+               "drilldown" : "Roger Bell_West",
+               "name" : "Roger Bell_West"
             },
             {
-               "y" : 3,
+               "name" : "Simon Green",
                "drilldown" : "Simon Green",
-               "name" : "Simon Green"
+               "y" : 3
             },
             {
-               "y" : 2,
                "drilldown" : "Simon Proctor",
+               "y" : 2,
                "name" : "Simon Proctor"
             },
             {
-               "name" : "Steven Wilson",
+               "y" : 1,
                "drilldown" : "Steven Wilson",
-               "y" : 1
+               "name" : "Steven Wilson"
             },
             {
+               "drilldown" : "Stuart Little",
                "y" : 4,
-               "name" : "Stuart Little",
-               "drilldown" : "Stuart Little"
+               "name" : "Stuart Little"
             },
             {
                "name" : "Vinod Kumar K",
@@ -83,65 +90,40 @@
                "y" : 1
             },
             {
-               "y" : 3,
                "drilldown" : "W. Luis Mochan",
+               "y" : 3,
                "name" : "W. Luis Mochan"
             }
-         ]
+         ],
+         "name" : "Perl Weekly Challenge - 100"
       }
    ],
-   "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"
-   },
    "legend" : {
       "enabled" : 0
    },
-   "subtitle" : {
-      "text" : "[Champions: 16] Last updated at 2021-02-16 21:11:36 GMT"
-   },
-   "plotOptions" : {
-      "series" : {
-         "borderWidth" : 0,
-         "dataLabels" : {
-            "format" : "{point.y}",
-            "enabled" : 1
-         }
-      }
-   },
    "drilldown" : {
       "series" : [
          {
+            "id" : "Alexander Karelas",
+            "name" : "Alexander Karelas",
             "data" : [
                [
                   "Perl",
                   2
                ]
-            ],
-            "id" : "Alexander Karelas",
-            "name" : "Alexander Karelas"
+            ]
          },
          {
-            "id" : "Gustavo Chaves",
             "data" : [
                [
                   "Perl",
                   2
                ]
             ],
+            "id" : "Gustavo Chaves",
             "name" : "Gustavo Chaves"
          },
          {
-            "id" : "James Smith",
             "data" : [
                [
                   "Perl",
@@ -152,21 +134,20 @@
                   1
                ]
             ],
+            "id" : "James Smith",
             "name" : "James Smith"
          },
          {
+            "name" : "Lance Wicks",
             "id" : "Lance Wicks",
             "data" : [
                [
                   "Perl",
                   1
                ]
-            ],
-            "name" : "Lance Wicks"
+            ]
          },
          {
-            "name" : "Luca Ferrari",
-            "id" : "Luca Ferrari",
             "data" : [
                [
                   "Raku",
@@ -176,47 +157,49 @@
                   "Blog",
                   2
                ]
-            ]
+            ],
+            "id" : "Luca Ferrari",
+            "name" : "Luca Ferrari"
          },
          {
-            "id" : "Mark Anderson",
             "data" : [
                [
                   "Raku",
                   1
                ]
             ],
+            "id" : "Mark Anderson",
             "name" : "Mark Anderson"
          },
          {
-            "id" : "Mohammad S Anwar",
             "data" : [
                [
                   "Perl",
-                  1
+                  2
                ]
             ],
-            "name" : "Mohammad S Anwar"
+            "name" : "Mohammad S Anwar",
+            "id" : "Mohammad S Anwar"
          },
          {
-            "name" : "Paulo Custodio",
-            "id" : "Paulo Custodio",
             "data" : [
                [
                   "Perl",
                   2
                ]
-            ]
+            ],
+            "name" : "Paulo Custodio",
+            "id" : "Paulo Custodio"
          },
          {
+            "id" : "Pete Houston",
             "name" : "Pete Houston",
             "data" : [
                [
                   "Perl",
                   2
                ]
-            ],
-            "id" : "Pete Houston"
+            ]
          },
          {
             "data" : [
@@ -233,7 +216,6 @@
             "name" : "Roger Bell_West"
          },
          {
-            "id" : "Simon Green",
             "data" : [
                [
                   "Perl",
@@ -244,17 +226,18 @@
                   1
                ]
             ],
+            "id" : "Simon Green",
             "name" : "Simon Green"
          },
          {
-            "name" : "Simon Proctor",
             "data" : [
                [
                   "Raku",
                   2
                ]
             ],
-            "id" : "Simon Proctor"
+            "id" : "Simon Proctor",
+            "name" : "Simon Proctor"
          },
          {
             "data" : [
@@ -263,8 +246,8 @@
                   1
                ]
             ],
-            "id" : "Steven Wilson",
-            "name" : "Steven Wilson"
+            "name" : "Steven Wilson",
+            "id" : "Steven Wilson"
          },
          {
             "name" : "Stuart Little",
@@ -281,17 +264,16 @@
             ]
          },
          {
+            "id" : "Vinod Kumar K",
             "name" : "Vinod Kumar K",
             "data" : [
                [
                   "Perl",
                   1
                ]
-            ],
-            "id" : "Vinod Kumar K"
+            ]
          },
          {
-            "id" : "W. Luis Mochan",
             "data" : [
                [
                   "Perl",
@@ -302,11 +284,29 @@
                   1
                ]
             ],
-            "name" : "W. Luis Mochan"
+            "name" : "W. Luis Mochan",
+            "id" : "W. Luis Mochan"
          }
       ]
    },
-   "title" : {
-      "text" : "Perl Weekly Challenge - 100"
+   "plotOptions" : {
+      "series" : {
+         "dataLabels" : {
+            "format" : "{point.y}",
+            "enabled" : 1
+         },
+         "borderWidth" : 0
+      }
+   },
+   "xAxis" : {
+      "type" : "category"
+   },
+   "yAxis" : {
+      "title" : {
+         "text" : "Total Solutions"
+      }
+   },
+   "chart" : {
+      "type" : "column"
    }
 }
diff --git a/stats/pwc-language-breakdown-summary.json b/stats/pwc-language-breakdown-summary.json
index 8d547dd32a..65d88dca95 100644
--- a/stats/pwc-language-breakdown-summary.json
+++ b/stats/pwc-language-breakdown-summary.json
@@ -1,21 +1,52 @@
 {
+   "legend" : {
+      "enabled" : "false"
+   },
+   "series" : [
+      {
+         "data" : [
+            [
+               "Blog",
+               1336
+            ],
+            [
+               "Perl",
+               4669
+            ],
+            [
+               "Raku",
+               3006
+            ]
+         ],
+         "name" : "Contributions",
+         "dataLabels" : {
+            "color" : "#FFFFFF",
+            "format" : "{point.y:.0f}",
+            "enabled" : "true",
+            "rotation" : -90,
+            "align" : "right",
+            "style" : {
+               "fontSize" : "13px",
+               "fontFamily" : "Verdana, sans-serif"
+            },
+            "y" : 10
+         }
+      }
+   ],
    "title" : {
       "text" : "Perl Weekly Challenge Contributions [2019 - 2020]"
    },
+   "subtitle" : {
+      "text" : "Last updated at 2021-02-16 21:53:00 GMT"
+   },
    "tooltip" : {
       "pointFormat" : "<b>{point.y:.0f}</b>"
    },
    "yAxis" : {
-      "min" : 0,
       "title" : {
          "text" : null
-      }
-   },
-   "subtitle" : {
-      "text" : "Last updated at 2021-02-16 21:11:35 GMT"
-   },
-   "legend" : {
-      "enabled" : "false"
+      },
+      "min" : 0
    },
    "chart" : {
       "type" : "column"
@@ -23,41 +54,10 @@
    "xAxis" : {
       "labels" : {
          "style" : {
-            "fontFamily" : "Verdana, sans-serif",
-            "fontSize" : "13px"
+            "fontSize" : "13px",
+            "fontFamily" : "Verdana, sans-serif"
          }
       },
       "type" : "category"
-   },
-   "series" : [
-      {
-         "name" : "Contributions",
-         "dataLabels" : {
-            "style" : {
-               "fontSize" : "13px",
-               "fontFamily" : "Verdana, sans-serif"
-            },
-            "rotation" : -90,
-            "y" : 10,
-            "color" : "#FFFFFF",
-            "align" : "right",
-            "format" : "{point.y:.0f}",
-            "enabled" : "true"
-         },
-         "data" : [
-            [
-               "Blog",
-               1336
-            ],
-            [
-               "Perl",
-               4668
-            ],
-            [
-               "Raku",
-               3006
-            ]
-         ]
-      }
-   ]
+   }
 }
diff --git a/stats/pwc-language-breakdown.json b/stats/pwc-language-breakdown.json
index 80877cd3e6..ca55f01e83 100644
--- a/stats/pwc-language-breakdown.json
+++ b/stats/pwc-language-breakdown.json
@@ -1,13 +1,21 @@
 {
-   "title" : {
-      "text" : "Perl Weekly Challenge Language"
+   "chart" : {
+      "type" : "column"
+   },
+   "yAxis" : {
+      "title" : {
+         "text" : "Total Solutions"
+      }
+   },
+   "xAxis" : {
+      "type" : "category"
    },
    "plotOptions" : {
       "series" : {
          "borderWidth" : 0,
          "dataLabels" : {
-            "enabled" : 1,
-            "format" : "{point.y}"
+            "format" : "{point.y}",
+            "enabled" : 1
          }
       }
    },
@@ -32,6 +40,8 @@
             "name" : "001"
          },
          {
+            "name" : "002",
+            "id" : "002",
             "data" : [
                [
                   "Perl",
@@ -45,9 +55,7 @@
                   "Blog",
                   10
                ]
-            ],
-            "id" : "002",
-            "name" : "002"
+            ]
          },
          {
             "name" : "003",
@@ -68,6 +76,7 @@
             ]
          },
          {
+            "id" : "004",
             "name" : "004",
             "data" : [
                [
@@ -82,11 +91,9 @@
                   "Blog",
                   10
                ]
-            ],
-            "id" : "004"
+            ]
          },
          {
-            "name" : "005",
             "data" : [
                [
                   "Perl",
@@ -101,9 +108,12 @@
                   12
                ]
             ],
+            "name" : "005",
             "id" : "005"
          },
          {
+            "id" : "006",
+            "name" : "006",
             "data" : [
                [
                   "Perl",
@@ -117,11 +127,10 @@
                   "Blog",
                   7
                ]
-            ],
-            "id" : "006",
-            "name" : "006"
+            ]
          },
          {
+            "name" : "007",
             "id" : "007",
             "data" : [
                [
@@ -136,11 +145,9 @@
                   "Blog",
                   10
                ]
-            ],
-            "name" : "007"
+            ]
          },
          {
-            "id" : "008",
             "data" : [
                [
                   "Perl",
@@ -155,6 +162,7 @@
                   12
                ]
             ],
+            "id" : "008",
             "name" : "008"
          },
          {
@@ -176,6 +184,8 @@
             ]
          },
          {
+            "name" : "010",
+            "id" : "010",
             "data" : [
                [
                   "Perl",
@@ -189,9 +199,7 @@
                   "Blog",
                   11
                ]
-            ],
-            "id" : "010",
-            "name" : "010"
+            ]
          },
          {
             "name" : "011",
@@ -212,6 +220,7 @@
             ]
          },
          {
+            "name" : "012",
             "id" : "012",
             "data" : [
                [
@@ -226,10 +235,11 @@
                   "Blog",
                   11
                ]
-            ],
-            "name" : "012"
+            ]
          },
          {
+            "id" : "013",
+            "name" : "013",
             "data" : [
                [
                   "Perl",
@@ -243,12 +253,11 @@
                   "Blog",
                   13
                ]
-            ],
-            "id" : "013",
-            "name" : "013"
+            ]
          },
          {
             "id" : "014",
+            "name" : "014",
             "data" : [
                [
                   "Perl",
@@ -262,11 +271,9 @@
                   "Blog",
                   15
                ]
-            ],
-            "name" : "014"
+            ]
          },
          {
-            "name" : "015",
             "data" : [
                [
                   "Perl",
@@ -281,9 +288,11 @@
                   15
                ]
             ],
+            "name" : "015",
             "id" : "015"
          },
          {
+            "id" : "016",
             "name" : "016",
             "data" : [
                [
@@ -298,11 +307,11 @@
                   "Blog",
                   12
                ]
-            ],
-            "id" : "016"
+            ]
          },
          {
             "id" : "017",
+            "name" : "017",
             "data" : [
                [
                   "Perl",
@@ -316,12 +325,9 @@
                   "Blog",
                   12
                ]
-            ],
-            "name" : "017"
+            ]
          },
          {
-            "name" : "018",
-            "id" : "018",
             "data" : [
                [
                   "Perl",
@@ -335,9 +341,12 @@
                   "Blog",
                   14
                ]
-            ]
+            ],
+            "name" : "018",
+            "id" : "018"
          },
          {
+            "id" : "019",
             "name" : "019",
             "data" : [
                [
@@ -352,12 +361,9 @@
                   "Blog",
                   13
                ]
-            ],
-            "id" : "019"
+            ]
          },
          {
-            "name" : "020",
-            "id" : "020",
             "data" : [
                [
                   "Perl",
@@ -371,10 +377,13 @@
                   "Blog",
                   13
                ]
-            ]
+            ],
+            "name" : "020",
+            "id" : "020"
          },
          {
             "name" : "021",
+            "id" : "021",
             "data" : [
                [
                   "Perl",
@@ -388,11 +397,9 @@
                   "Blog",
                   10
                ]
-            ],
-            "id" : "021"
+            ]
          },
          {
-            "id" : "022",
             "data" : [
                [
                   "Perl",
@@ -407,7 +414,8 @@
                   10
                ]
             ],
-            "name" : "022"
+            "name" : "022",
+            "id" : "022"
          },
          {
             "data" : [
@@ -424,11 +432,10 @@
                   12
                ]
             ],
-            "id" : "023",
-            "name" : "023"
+            "name" : "023",
+            "id" : "023"
          },
          {
-            "name" : "024",
             "data" : [
                [
                   "Perl",
@@ -443,6 +450,7 @@
                   11
                ]
             ],
+            "name" : "024",
             "id" : "024"
          },
          {
@@ -464,8 +472,8 @@
             "name" : "025"
          },
          {
-            "name" : "026",
             "id" : "026",
+            "name" : "026",
             "data" : [
                [
                   "Perl",
@@ -482,6 +490,8 @@
             ]
          },
          {
+            "name" : "027",
+            "id" : "027",
             "data" : [
                [
                   "Perl",
@@ -495,12 +505,11 @@
                   "Blog",
                   9
                ]
-            ],
-            "id" : "027",
-            "name" : "027"
+            ]
          },
          {
             "name" : "028",
+            "id" : "028",
             "data" : [
                [
                   "Perl",
@@ -514,8 +523,7 @@
                   "Blog",
                   9
                ]
-            ],
-            "id" : "028"
+            ]
          },
          {
             "name" : "029",
@@ -554,6 +562,8 @@
             "name" : "030"
          },
          {
+            "id" : "031",
+            "name" : "031",
             "data" : [
                [
                   "Perl",
@@ -567,13 +577,11 @@
                   "Blog",
                   9
                ]
-            ],
-            "id" : "031",
-            "name" : "031"
+            ]
          },
          {
-            "name" : "032",
             "id" : "032",
+            "name" : "032",
             "data" : [
                [
                   "Perl",
@@ -590,6 +598,7 @@
             ]
          },
          {
+            "id" : "033",
             "name" : "033",
             "data" : [
                [
@@ -604,10 +613,10 @@
                   "Blog",
                   10
                ]
-            ],
-            "id" : "033"
+            ]
          },
          {
+            "name" : "034",
             "id" : "034",
             "data" : [
                [
@@ -622,12 +631,9 @@
                   "Blog",
                   11
                ]
-            ],
-            "name" : "034"
+            ]
          },
          {
-            "name" : "035",
-            "id" : "035",
             "data" : [
                [
                   "Perl",
@@ -641,11 +647,11 @@
                   "Blog",
                   9
                ]
-            ]
+            ],
+            "name" : "035",
+            "id" : "035"
          },
          {
-            "name" : "036",
-            "id" : "036",
             "data" : [
                [
                   "Perl",
@@ -659,11 +665,11 @@
                   "Blog",
                   11
                ]
-            ]
+            ],
+            "id" : "036",
+            "name" : "036"
          },
          {
-            "name" : "037",
-            "id" : "037",
             "data" : [
                [
                   "Perl",
@@ -677,10 +683,13 @@
                   "Blog",
                   9
                ]
-            ]
+            ],
+            "id" : "037",
+            "name" : "037"
          },
          {
             "id" : "038",
+            "name" : "038",
             "data" : [
                [
                   "Perl",
@@ -694,11 +703,9 @@
                   "Blog",
                   12
                ]
-            ],
-            "name" : "038"
+            ]
          },
          {
-            "name" : "039",
             "data" : [
                [
                   "Perl",
@@ -713,7 +720,8 @@
                   12
                ]
             ],
-            "id" : "039"
+            "id" : "039",
+            "name" : "039"
          },
          {
             "name" : "040",
@@ -735,6 +743,7 @@
          },
          {
             "id" : "041",
+            "name" : "041",
             "data" : [
                [
                   "Perl",
@@ -748,12 +757,9 @@
                   "Blog",
                   9
                ]
-            ],
-            "name" : "041"
+            ]
          },
          {
-            "name" : "042",
-            "id" : "042",
             "data" : [
                [
                   "Perl",
@@ -767,7 +773,9 @@
                   "Blog",
                   11
                ]
-            ]
+            ],
+            "id" : "042",
+            "name" : "042"
          },
          {
             "data" : [
@@ -784,11 +792,10 @@
                   11
                ]
             ],
-            "id" : "043",
-            "name" : "043"
+            "name" : "043",
+            "id" : "043"
          },
          {
-            "name" : "044",
             "data" : [
                [
                   "Perl",
@@ -803,10 +810,12 @@
                   11
                ]
             ],
-            "id" : "044"
+            "id" : "044",
+            "name" : "044"
          },
          {
             "id" : "045",
+            "name" : "045",
             "data" : [
                [
                   "Perl",
@@ -820,8 +829,7 @@
                   "Blog",
                   11
                ]
-            ],
-            "name" : "045"
+            ]
          },
          {
             "data" : [
@@ -842,7 +850,6 @@
             "name" : "046"
          },
          {
-            "id" : "047",
             "data" : [
                [
                   "Perl",
@@ -857,10 +864,12 @@
                   10
                ]
             ],
+            "id" : "047",
             "name" : "047"
          },
          {
             "name" : "048",
+            "id" : "048",
             "data" : [
                [
                   "Perl",
@@ -874,8 +883,7 @@
                   "Blog",
                   12
                ]
-            ],
-            "id" : "048"
+            ]
          },
          {
             "name" : "049",
@@ -897,6 +905,7 @@
          },
          {
             "id" : "050",
+            "name" : "050",
             "data" : [
                [
                   "Perl",
@@ -910,11 +919,9 @@
                   "Blog",
                   12
                ]
-            ],
-            "name" : "050"
+            ]
          },
          {
-            "name" : "051",
             "data" : [
                [
                   "Perl",
@@ -929,10 +936,10 @@
                   11
                ]
             ],
-            "id" : "051"
+            "id" : "051",
+            "name" : "051"
          },
          {
-            "name" : "052",
             "data" : [
                [
                   "Perl",
@@ -947,7 +954,8 @@
                   14
                ]
             ],
-            "id" : "052"
+            "id" : "052",
+            "name" : "052"
          },
          {
             "name" : "053",
@@ -986,7 +994,6 @@
             ]
          },
          {
-            "id" : "055",
             "data" : [
                [
                   "Perl",