- Added solution to the "Product SubArray" task.

13 files changed, 1172 insertions, 1098 deletions

diff --git a/challenge-061/mohammad-anwar/perl/ch-1.pl b/challenge-061/mohammad-anwar/perl/ch-1.pl
new file mode 100644
index 0000000000..847a4c99c0
--- /dev/null
+++ b/challenge-061/mohammad-anwar/perl/ch-1.pl
@@ -0,0 +1,28 @@
+#!/usr/bin/perl
+
+use strict;
+use warnings;
+
+my $n = [ 2, 5, -1, 3 ];
+print sprintf("[ %s ] => %s\n", join(", ", @$n), max_product_subarray($n));
+
+sub max_product_subarray {
+    my ($array) = @_;
+
+    my $subarray = {};
+    foreach my $i (0 .. $#$array) {
+        foreach my $j ($i .. $#$array-1) {
+            my @x = ();
+            my $y = 1;
+            foreach my $k ($i .. ++$j) {
+                push @x, $array->[$k];
+                $y *= $array->[$k];
+            }
+            $subarray->{sprintf("[ %s ]", join ", ", @x)} = $y;
+        }
+    }
+
+    return [
+        sort { $subarray->{$b} <=> $subarray->{$a} } keys %$subarray
+    ]->[0];
+}
diff --git a/challenge-061/mohammad-anwar/perl/ch-1a.pl b/challenge-061/mohammad-anwar/perl/ch-1a.pl
new file mode 100644
index 0000000000..7d0e832a2f
--- /dev/null
+++ b/challenge-061/mohammad-anwar/perl/ch-1a.pl
@@ -0,0 +1,31 @@
+#!/usr/bin/perl
+
+use strict;
+use warnings;
+
+use Test::More;
+
+is( max_product_subarray([ 2, 5, -1, 3]), "[ 2, 5 ]" );
+
+done_testing;
+
+sub max_product_subarray {
+    my ($array) = @_;
+
+    my $subarray = {};
+    foreach my $i (0 .. $#$array) {
+        foreach my $j ($i .. $#$array-1) {
+            my @x = ();
+            my $y = 1;
+            foreach my $k ($i .. ++$j) {
+                push @x, $array->[$k];
+                $y *= $array->[$k];
+            }
+            $subarray->{sprintf("[ %s ]", join ", ", @x)} = $y;
+        }
+    }
+
+    return [
+        sort { $subarray->{$b} <=> $subarray->{$a} } keys %$subarray
+    ]->[0];
+}
diff --git a/stats/pwc-current.json b/stats/pwc-current.json
index ae2623d586..906757943e 100644
--- a/stats/pwc-current.json
+++ b/stats/pwc-current.json
@@ -1,37 +1,54 @@
 {
+   "tooltip" : {
+      "pointFormat" : "<span style='color:{point.color}'>{point.name}</span>: <b>{point.y:f}</b><br/>",
+      "followPointer" : 1,
+      "headerFormat" : "<span style='font-size:11px'>{series.name}</span><br/>"
+   },
+   "plotOptions" : {
+      "series" : {
+         "borderWidth" : 0,
+         "dataLabels" : {
+            "format" : "{point.y}",
+            "enabled" : 1
+         }
+      }
+   },
+   "subtitle" : {
+      "text" : "[Champions: 4] Last updated at 2020-05-18 14:11:27 GMT"
+   },
    "series" : [
       {
-         "colorByPoint" : 1,
          "name" : "Perl Weekly Challenge - 061",
          "data" : [
             {
                "drilldown" : "Javier Luque",
-               "y" : 5,
-               "name" : "Javier Luque"
+               "name" : "Javier Luque",
+               "y" : 5
+            },
+            {
+               "y" : 1,
+               "drilldown" : "Mohammad S Anwar",
+               "name" : "Mohammad S Anwar"
             },
             {
-               "y" : 3,
                "drilldown" : "Roger Bell_West",
-               "name" : "Roger Bell_West"
+               "name" : "Roger Bell_West",
+               "y" : 3
             },
             {
                "y" : 2,
-               "drilldown" : "Simon Proctor",
-               "name" : "Simon Proctor"
+               "name" : "Simon Proctor",
+               "drilldown" : "Simon Proctor"
             }
-         ]
+         ],
+         "colorByPoint" : 1
       }
    ],
-   "title" : {
-      "text" : "Perl Weekly Challenge - 061"
-   },
-   "subtitle" : {
-      "text" : "[Champions: 3] Last updated at 2020-05-18 12:47:54 GMT"
+   "xAxis" : {
+      "type" : "category"
    },
-   "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
+   "legend" : {
+      "enabled" : 0
    },
    "chart" : {
       "type" : "column"
@@ -41,24 +58,14 @@
          "text" : "Total Solutions"
       }
    },
-   "xAxis" : {
-      "type" : "category"
-   },
-   "plotOptions" : {
-      "series" : {
-         "dataLabels" : {
-            "format" : "{point.y}",
-            "enabled" : 1
-         },
-         "borderWidth" : 0
-      }
-   },
-   "legend" : {
-      "enabled" : 0
+   "title" : {
+      "text" : "Perl Weekly Challenge - 061"
    },
    "drilldown" : {
       "series" : [
          {
+            "id" : "Javier Luque",
+            "name" : "Javier Luque",
             "data" : [
                [
                   "Perl",
@@ -72,12 +79,19 @@
                   "Blog",
                   1
                ]
-            ],
-            "name" : "Javier Luque",
-            "id" : "Javier Luque"
+            ]
+         },
+         {
+            "id" : "Mohammad S Anwar",
+            "name" : "Mohammad S Anwar",
+            "data" : [
+               [
+                  "Perl",
+                  1
+               ]
+            ]
          },
          {
-            "id" : "Roger Bell_West",
             "data" : [
                [
                   "Perl",
@@ -88,6 +102,7 @@
                   1
                ]
             ],
+            "id" : "Roger Bell_West",
             "name" : "Roger Bell_West"
          },
          {
@@ -97,8 +112,8 @@
                   2
                ]
             ],
-            "name" : "Simon Proctor",
-            "id" : "Simon Proctor"
+            "id" : "Simon Proctor",
+            "name" : "Simon Proctor"
          }
       ]
    }
diff --git a/stats/pwc-language-breakdown-summary.json b/stats/pwc-language-breakdown-summary.json
index 97f84f06b5..abbe487860 100644
--- a/stats/pwc-language-breakdown-summary.json
+++ b/stats/pwc-language-breakdown-summary.json
@@ -1,28 +1,21 @@
 {
-   "yAxis" : {
-      "title" : {
-         "text" : null
-      },
-      "min" : 0
-   },
-   "chart" : {
-      "type" : "column"
+   "tooltip" : {
+      "pointFormat" : "<b>{point.y:.0f}</b>"
    },
    "series" : [
       {
          "dataLabels" : {
+            "y" : 10,
             "color" : "#FFFFFF",
+            "rotation" : -90,
+            "format" : "{point.y:.0f}",
             "style" : {
-               "fontSize" : "13px",
-               "fontFamily" : "Verdana, sans-serif"
+               "fontFamily" : "Verdana, sans-serif",
+               "fontSize" : "13px"
             },
             "enabled" : "true",
-            "format" : "{point.y:.0f}",
-            "rotation" : -90,
-            "y" : 10,
             "align" : "right"
          },
-         "name" : "Contributions",
          "data" : [
             [
                "Blog",
@@ -30,34 +23,41 @@
             ],
             [
                "Perl",
-               2544
+               2545
             ],
             [
                "Raku",
                1600
             ]
-         ]
+         ],
+         "name" : "Contributions"
       }
    ],
-   "title" : {
-      "text" : "Perl Weekly Challenge Contributions [2019 - 2020]"
-   },
-   "tooltip" : {
-      "pointFormat" : "<b>{point.y:.0f}</b>"
-   },
    "subtitle" : {
-      "text" : "Last updated at 2020-05-18 12:47:54 GMT"
+      "text" : "Last updated at 2020-05-18 14:11:27 GMT"
    },
-   "legend" : {
-      "enabled" : "false"
+   "yAxis" : {
+      "min" : 0,
+      "title" : {
+         "text" : null
+      }
    },
    "xAxis" : {
-      "type" : "category",
       "labels" : {
          "style" : {
-            "fontFamily" : "Verdana, sans-serif",
-            "fontSize" : "13px"
+            "fontSize" : "13px",
+            "fontFamily" : "Verdana, sans-serif"
          }
-      }
+      },
+      "type" : "category"
+   },
+   "chart" : {
+      "type" : "column"
+   },
+   "legend" : {
+      "enabled" : "false"
+   },
+   "title" : {
+      "text" : "Perl Weekly Challenge Contributions [2019 - 2020]"
    }
 }
diff --git a/stats/pwc-language-breakdown.json b/stats/pwc-language-breakdown.json
index 50512f1fe6..81a7d5bd66 100644
--- a/stats/pwc-language-breakdown.json
+++ b/stats/pwc-language-breakdown.json
@@ -1,9 +1,351 @@
 {
+   "plotOptions" : {
+      "series" : {
+         "dataLabels" : {
+            "format" : "{point.y}",
+            "enabled" : 1
+         },
+         "borderWidth" : 0
+      }
+   },
+   "tooltip" : {
+      "followPointer" : "true",
+      "pointFormat" : "<span style=\"color:{point.color}\">Challenge {point.name}</span>: <b>{point.y:f}</b><br/>",
+      "headerFormat" : "<span style=\"font-size:11px\"></span>"
+   },
+   "series" : [
+      {
+         "colorByPoint" : "true",
+         "data" : [
+            {
+               "name" : "#001",
+               "drilldown" : "001",
+               "y" : 142
+            },
+            {
+               "y" : 109,
+               "name" : "#002",
+               "drilldown" : "002"
+            },
+            {
+               "y" : 71,
+               "name" : "#003",
+               "drilldown" : "003"
+            },
+            {
+               "y" : 91,
+               "name" : "#004",
+               "drilldown" : "004"
+            },
+            {
+               "name" : "#005",
+               "drilldown" : "005",
+               "y" : 72
+            },
+            {
+               "y" : 52,
+               "name" : "#006",
+               "drilldown" : "006"
+            },
+            {
+               "y" : 59,
+               "name" : "#007",
+               "drilldown" : "007"
+            },
+            {
+               "y" : 72,
+               "drilldown" : "008",
+               "name" : "#008"
+            },
+            {
+               "y" : 68,
+               "name" : "#009",
+               "drilldown" : "009"
+            },
+            {
+               "y" : 60,
+               "name" : "#010",
+               "drilldown" : "010"
+            },
+            {
+               "drilldown" : "011",
+               "name" : "#011",
+               "y" : 79
+            },
+            {
+               "name" : "#012",
+               "drilldown" : "012",
+               "y" : 83
+            },
+            {
+               "drilldown" : "013",
+               "name" : "#013",
+               "y" : 76
+            },
+            {
+               "y" : 96,
+               "drilldown" : "014",
+               "name" : "#014"
+            },
+            {
+               "name" : "#015",
+               "drilldown" : "015",
+               "y" : 93
+            },
+            {
+               "drilldown" : "016",
+               "name" : "#016",
+               "y" : 66
+            },
+            {
+               "name" : "#017",
+               "drilldown" : "017",
+               "y" : 79
+            },
+            {
+               "drilldown" : "018",
+               "name" : "#018",
+               "y" : 76
+            },
+            {
+               "drilldown" : "019",
+               "name" : "#019",
+               "y" : 97
+            },
+            {
+               "y" : 95,
+               "name" : "#020",
+               "drilldown" : "020"
+            },
+            {
+               "drilldown" : "021",
+               "name" : "#021",
+               "y" : 67
+            },
+            {
+               "drilldown" : "022",
+               "name" : "#022",
+               "y" : 63
+            },
+            {
+               "y" : 91,
+               "drilldown" : "023",
+               "name" : "#023"
+            },
+            {
+               "y" : 70,
+               "name" : "#024",
+               "drilldown" : "024"
+            },
+            {
+               "y" : 55,
+               "drilldown" : "025",
+               "name" : "#025"
+            },
+            {
+               "y" : 70,
+               "drilldown" : "026",
+               "name" : "#026"
+            },
+            {
+               "y" : 58,
+               "name" : "#027",
+               "drilldown" : "027"
+            },
+            {
+               "y" : 78,
+               "name" : "#028",
+               "drilldown" : "028"
+            },
+            {
+               "y" : 77,
+               "name" : "#029",
+               "drilldown" : "029"
+            },
+            {
+               "drilldown" : "030",
+               "name" : "#030",
+               "y" : 115
+            },
+            {
+               "drilldown" : "031",
+               "name" : "#031",
+               "y" : 87
+            },
+            {
+               "y" : 92,
+               "name" : "#032",
+               "drilldown" : "032"
+            },
+            {
+               "name" : "#033",
+               "drilldown" : "033",
+               "y" : 108
+            },
+            {
+               "y" : 62,
+               "name" : "#034",
+               "drilldown" : "034"
+            },
+            {
+               "y" : 62,
+               "name" : "#035",
+               "drilldown" : "035"
+            },
+            {
+               "drilldown" : "036",
+               "name" : "#036",
+               "y" : 66
+            },
+            {
+               "y" : 65,
+               "name" : "#037",
+               "drilldown" : "037"
+            },
+            {
+               "drilldown" : "038",
+               "name" : "#038",
+               "y" : 65
+            },
+            {
+               "y" : 60,
+               "drilldown" : "039",
+               "name" : "#039"
+            },
+            {
+               "drilldown" : "040",
+               "name" : "#040",
+               "y" : 71
+            },
+            {
+               "y" : 74,
+               "drilldown" : "041",
+               "name" : "#041"
+            },
+            {
+               "y" : 88,
+               "name" : "#042",
+               "drilldown" : "042"
+            },
+            {
+               "y" : 66,
+               "name" : "#043",
+               "drilldown" : "043"
+            },
+            {
+               "name" : "#044",
+               "drilldown" : "044",
+               "y" : 82
+            },
+            {
+               "drilldown" : "045",
+               "name" : "#045",
+               "y" : 94
+            },
+            {
+               "y" : 85,
+               "drilldown" : "046",
+               "name" : "#046"
+            },
+            {
+               "drilldown" : "047",
+               "name" : "#047",
+               "y" : 82
+            },
+            {
+               "drilldown" : "048",
+               "name" : "#048",
+               "y" : 106
+            },
+            {
+               "drilldown" : "049",
+               "name" : "#049",
+               "y" : 85
+            },
+            {
+               "name" : "#050",
+               "drilldown" : "050",
+               "y" : 96
+            },
+            {
+               "y" : 87,
+               "name" : "#051",
+               "drilldown" : "051"
+            },
+            {
+               "name" : "#052",
+               "drilldown" : "052",
+               "y" : 89
+            },
+            {
+               "name" : "#053",
+               "drilldown" : "053",
+               "y" : 99
+            },
+            {
+               "name" : "#054",
+               "drilldown" : "054",
+               "y" : 99
+            },
+            {
+               "name" : "#055",
+               "drilldown" : "055",
+               "y" : 86
+            },
+            {
+               "y" : 93,
+               "name" : "#056",
+               "drilldown" : "056"
+            },
+            {
+               "y" : 78,
+               "drilldown" : "057",
+               "name" : "#057"
+            },
+            {
+               "drilldown" : "058",
+               "name" : "#058",
+               "y" : 61
+            },
+            {
+               "y" : 82,
+               "name" : "#059",
+               "drilldown" : "059"
+            },
+            {
+               "drilldown" : "060",
+               "name" : "#060",
+               "y" : 76
+            },
+            {
+               "y" : 11,
+               "drilldown" : "061",
+               "name" : "#061"
+            }
+         ],
+         "name" : "Perl Weekly Challenge Languages"
+      }
+   ],
+   "subtitle" : {
+      "text" : "Click the columns to drilldown the language breakdown. Last updated at 2020-05-18 14:11:27 GMT"
+   },
+   "yAxis" : {
+      "title" : {
+         "text" : "Total Solutions"
+      }
+   },
+   "xAxis" : {
+      "type" : "category"
+   },
+   "legend" : {
+      "enabled" : "false"
+   },
+   "chart" : {
+      "type" : "column"
+   },
    "drilldown" : {
       "series" : [
          {
-            "id" : "001",
-            "name" : "001",
             "data" : [
                [
                   "Perl",
@@ -17,10 +359,11 @@
                   "Blog",
                   11
                ]
-            ]
+            ],
+            "name" : "001",
+            "id" : "001"
          },
          {
-            "id" : "002",
             "data" : [
                [
                   "Perl",
@@ -35,9 +378,11 @@
                   10
                ]
             ],
+            "id" : "002",
             "name" : "002"
          },
          {
+            "id" : "003",
             "name" : "003",
             "data" : [
                [
@@ -52,12 +397,11 @@
                   "Blog",
                   9
                ]
-            ],
-            "id" : "003"
+            ]
          },
          {
-            "id" : "004",
             "name" : "004",
+            "id" : "004",
             "data" : [
                [
                   "Perl",
@@ -74,7 +418,6 @@
             ]
          },
          {
-            "name" : "005",
             "data" : [
                [
                   "Perl",
@@ -89,10 +432,10 @@
                   12
                ]
             ],
+            "name" : "005",
             "id" : "005"
          },
          {
-            "name" : "006",
             "data" : [
                [
                   "Perl",
@@ -107,10 +450,12 @@
                   7
                ]
             ],
+            "name" : "006",
             "id" : "006"
          },
          {
             "name" : "007",
+            "id" : "007",
             "data" : [
                [
                   "Perl",
@@ -124,11 +469,11 @@
                   "Blog",
                   10
                ]
-            ],
-            "id" : "007"
+            ]
          },
          {
             "id" : "008",
+            "name" : "008",
             "data" : [
                [
                   "Perl",
@@ -142,10 +487,11 @@
                   "Blog",
                   12
                ]
-            ],
-            "name" : "008"
+            ]
          },
          {
+            "id" : "009",
+            "name" : "009",
             "data" : [
                [
                   "Perl",
@@ -159,12 +505,11 @@
                   "Blog",
                   13
                ]
-            ],
-            "name" : "009",
-            "id" : "009"
+            ]
          },
          {
             "name" : "010",
+            "id" : "010",
             "data" : [
                [
                   "Perl",
@@ -178,11 +523,11 @@
                   "Blog",
                   11
                ]
-            ],
-            "id" : "010"
+            ]
          },
          {
             "name" : "011",
+            "id" : "011",
             "data" : [
                [
                   "Perl",
@@ -196,10 +541,11 @@
                   "Blog",
                   10
                ]
-            ],
-            "id" : "011"
+            ]
          },
          {
+            "id" : "012",
+            "name" : "012",
             "data" : [
                [
                   "Perl",
@@ -213,9 +559,7 @@
                   "Blog",
                   11
                ]
-            ],
-            "name" : "012",
-            "id" : "012"
+            ]
          },
          {
             "data" : [
@@ -232,11 +576,10 @@
                   13
                ]
             ],
-            "name" : "013",
-            "id" : "013"
+            "id" : "013",
+            "name" : "013"
          },
          {
-            "name" : "014",
             "data" : [
                [
                   "Perl",
@@ -251,9 +594,12 @@
                   15
                ]
             ],
+            "name" : "014",
             "id" : "014"
          },
          {
+            "id" : "015",
+            "name" : "015",
             "data" : [
                [
                   "Perl",
@@ -267,11 +613,11 @@
                   "Blog",
                   15
                ]
-            ],
-            "name" : "015",
-            "id" : "015"
+            ]
          },
          {
+            "id" : "016",
+            "name" : "016",
             "data" : [
                [
                   "Perl",
@@ -285,12 +631,11 @@
                   "Blog",
                   12
                ]
-            ],
-            "name" : "016",
-            "id" : "016"
+            ]
          },
          {
             "name" : "017",
+            "id" : "017",
             "data" : [
                [
                   "Perl",
@@ -304,10 +649,10 @@
                   "Blog",
                   12
                ]
-            ],
-            "id" : "017"
+            ]
          },
          {
+            "id" : "018",
             "name" : "018",
             "data" : [
                [
@@ -322,12 +667,9 @@
                   "Blog",
                   14
                ]
-            ],
-            "id" : "018"
+            ]
          },
          {
-            "id" : "019",
-            "name" : "019",
             "data" : [
                [
                   "Perl",
@@ -341,10 +683,13 @@
                   "Blog",
                   13
                ]
-            ]
+            ],
+            "id" : "019",
+            "name" : "019"
          },
          {
             "name" : "020",
+            "id" : "020",
             "data" : [
                [
                   "Perl",
@@ -358,10 +703,11 @@
                   "Blog",
                   13
                ]
-            ],
-            "id" : "020"
+            ]
          },
          {
+            "id" : "021",
+            "name" : "021",
             "data" : [
                [
                   "Perl",
@@ -375,9 +721,7 @@
                   "Blog",
                   10
                ]
-            ],
-            "name" : "021",
-            "id" : "021"
+            ]
          },
          {
             "data" : [
@@ -394,11 +738,10 @@
                   10
                ]
             ],
-            "name" : "022",
-            "id" : "022"
+            "id" : "022",
+            "name" : "022"
          },
          {
-            "id" : "023",
             "data" : [
                [
                   "Perl",
@@ -413,10 +756,10 @@
                   12
                ]
             ],
-            "name" : "023"
+            "name" : "023",
+            "id" : "023"
          },
          {
-            "name" : "024",
             "data" : [
                [
                   "Perl",
@@ -431,10 +774,10 @@
                   11
                ]
             ],
-            "id" : "024"
+            "id" : "024",
+            "name" : "024"
          },
          {
-            "name" : "025",
             "data" : [
                [
                   "Perl",
@@ -449,11 +792,12 @@
                   12
                ]
             ],
-            "id" : "025"
+            "id" : "025",
+            "name" : "025"
          },
          {
-            "id" : "026",
             "name" : "026",
+            "id" : "026",
             "data" : [
                [
                   "Perl",
@@ -484,10 +828,12 @@
                   9
                ]
             ],
-            "name" : "027",
-            "id" : "027"
+            "id" : "027",
+            "name" : "027"
          },
          {
+            "id" : "028",
+            "name" : "028",
             "data" : [
                [
                   "Perl",
@@ -501,9 +847,7 @@
                   "Blog",
                   9
                ]
-            ],
-            "name" : "028",
-            "id" : "028"
+            ]
          },
          {
             "data" : [
@@ -520,11 +864,10 @@
                   12
                ]
             ],
-            "name" : "029",
-            "id" : "029"
+            "id" : "029",
+            "name" : "029"
          },
          {
-            "name" : "030",
             "data" : [
                [
                   "Perl",
@@ -539,11 +882,10 @@
                   10
                ]
             ],
+            "name" : "030",
             "id" : "030"
          },
          {
-            "id" : "031",
-            "name" : "031",
             "data" : [
                [
                   "Perl",
@@ -557,7 +899,9 @@
                   "Blog",
                   9
                ]
-            ]
+            ],
+            "id" : "031",
+            "name" : "031"
          },
          {
             "data" : [
@@ -578,6 +922,8 @@
             "id" : "032"
          },
          {
+            "id" : "033",
+            "name" : "033",
             "data" : [
                [
                   "Perl",
@@ -591,12 +937,9 @@
                   "Blog",
                   10
                ]
-            ],
-            "name" : "033",
-            "id" : "033"
+            ]
          },
          {
-            "name" : "034",
             "data" : [
                [
                   "Perl",
@@ -611,9 +954,12 @@
                   11
                ]
             ],
-            "id" : "034"
+            "id" : "034",
+            "name" : "034"
          },
          {
+            "id" : "035",
+            "name" : "035",
             "data" : [
                [
                   "Perl",
@@ -627,9 +973,7 @@
                   "Blog",
                   9
                ]
-            ],
-            "name" : "035",
-            "id" : "035"
+            ]
          },
          {
             "id" : "036",
@@ -651,6 +995,7 @@
          },
          {
             "id" : "037",
+            "name" : "037",
             "data" : [
                [
                   "Perl",
@@ -664,10 +1009,11 @@
                   "Blog",
                   9
                ]
-            ],
-            "name" : "037"
+            ]
          },
          {
+            "id" : "038",
+            "name" : "038",
             "data" : [
                [
                   "Perl",
@@ -681,11 +1027,10 @@