- Added Raku solution to "Left Rotation" task.

14 files changed, 1249 insertions, 1149 deletions

diff --git a/challenge-078/mohammad-anwar/raku/ch-2.raku b/challenge-078/mohammad-anwar/raku/ch-2.raku
new file mode 100644
index 0000000000..85c0cbc761
--- /dev/null
+++ b/challenge-078/mohammad-anwar/raku/ch-2.raku
@@ -0,0 +1,47 @@
+#!/usr/bin/env raku
+
+#
+# Perl Weekly Challenge - 078
+#
+# Task #2: Left Rotation
+#
+# https://perlweeklychallenge.org/blog/perl-weekly-challenge-078
+#
+
+use v6.d;
+
+sub MAIN(Str :$A = "10, 20, 30, 40, 50", Str :$B = "3, 4") {
+    left-rotation($A, $B).join("\n").say;
+}
+
+#
+#
+# METHOD
+
+sub left-rotation(Str $source, Str $index) {
+
+    die "ERROR: Invalid source [$source].\n"
+        unless $source ~~ /^[\-?\d\,?\s?]+$/;
+    die "ERROR: Invalid index  [$index].\n"
+        unless $index  ~~ /^[\-?\d\,?\s?]+$/;
+
+    my @source = $source.split(',').map: { .Int };
+    my @index  = $index.split(',').map:  { .Int };
+
+    my @left-rotation = Empty;
+    for @index -> $i {
+        my @array = Empty;
+        for $i..@source.elems-1 -> $j {
+            @array.push: @source.[$j];
+        }
+        if $i > 0 {
+            for 0..$i-1 -> $k {
+                @array.push: @source.[$k];
+            }
+        }
+
+        @left-rotation.push: @array;
+    }
+
+    return |@left-rotation;
+}
diff --git a/challenge-078/mohammad-anwar/raku/ch-2.t b/challenge-078/mohammad-anwar/raku/ch-2.t
new file mode 100644
index 0000000000..6fc555f1a0
--- /dev/null
+++ b/challenge-078/mohammad-anwar/raku/ch-2.t
@@ -0,0 +1,53 @@
+#!/usr/bin/env raku
+
+#
+# Perl Weekly Challenge - 078
+#
+# Task #2: Left Rotation
+#
+# https://perlweeklychallenge.org/blog/perl-weekly-challenge-078
+#
+
+use Test;
+
+is-deeply [left-rotation("10, 20, 30, 40, 50", "3, 4")],
+          [[40, 50, 10, 20, 30], [50, 10, 20, 30, 40]],
+          "testing example 1";
+
+is-deeply [left-rotation("7, 4, 2, 6, 3", "1, 3, 4")],
+          [[4, 2, 6, 3, 7], [6, 3, 7, 4, 2], [3, 7, 4, 2, 6]],
+          "testing example 2";
+
+done-testing;
+
+#
+#
+# METHOD
+
+sub left-rotation(Str $source, Str $index) {
+
+    die "ERROR: Invalid source [$source].\n"
+        unless $source ~~ /^[\-?\d\,?\s?]+$/;
+    die "ERROR: Invalid index  [$index].\n"
+        unless $index  ~~ /^[\-?\d\,?\s?]+$/;
+
+    my @source = $source.split(',').map: { .Int };
+    my @index  = $index.split(',').map:  { .Int };
+
+    my @left-rotation = Empty;
+    for @index -> $i {
+        my @array = Empty;
+        for $i..@source.elems-1 -> $j {
+            @array.push: @source.[$j];
+        }
+        if $i > 0 {
+            for 0..$i-1 -> $k {
+                @array.push: @source.[$k];
+            }
+        }
+
+        @left-rotation.push: @array;
+    }
+
+    return |@left-rotation;
+}
diff --git a/stats/pwc-current.json b/stats/pwc-current.json
index 85339f41bb..917176fb98 100644
--- a/stats/pwc-current.json
+++ b/stats/pwc-current.json
@@ -1,34 +1,12 @@
 {
-   "title" : {
-      "text" : "Perl Weekly Challenge - 078"
-   },
-   "plotOptions" : {
-      "series" : {
-         "dataLabels" : {
-            "format" : "{point.y}",
-            "enabled" : 1
-         },
-         "borderWidth" : 0
-      }
-   },
-   "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/>"
-   },
    "legend" : {
       "enabled" : 0
    },
-   "yAxis" : {
-      "title" : {
-         "text" : "Total Solutions"
-      }
-   },
    "drilldown" : {
       "series" : [
          {
-            "id" : "Abigail",
             "name" : "Abigail",
+            "id" : "Abigail",
             "data" : [
                [
                   "Perl",
@@ -37,16 +15,18 @@
             ]
          },
          {
+            "id" : "Alexander Pankoff",
+            "name" : "Alexander Pankoff",
             "data" : [
                [
                   "Perl",
                   2
                ]
-            ],
-            "name" : "Alexander Pankoff",
-            "id" : "Alexander Pankoff"
+            ]
          },
          {
+            "name" : "Andinus",
+            "id" : "Andinus",
             "data" : [
                [
                   "Perl",
@@ -56,9 +36,7 @@
                   "Blog",
                   2
                ]
-            ],
-            "name" : "Andinus",
-            "id" : "Andinus"
+            ]
          },
          {
             "name" : "Andrew Shitov",
@@ -95,14 +73,14 @@
             ]
          },
          {
-            "name" : "Dave Cross",
-            "id" : "Dave Cross",
             "data" : [
                [
                   "Perl",
                   2
                ]
-            ]
+            ],
+            "name" : "Dave Cross",
+            "id" : "Dave Cross"
          },
          {
             "data" : [
@@ -115,34 +93,34 @@
             "id" : "Dave Jacoby"
          },
          {
+            "id" : "E. Choroba",
+            "name" : "E. Choroba",
             "data" : [
                [
                   "Perl",
                   2
                ]
-            ],
-            "id" : "E. Choroba",
-            "name" : "E. Choroba"
+            ]
          },
          {
+            "name" : "James Smith",
+            "id" : "James Smith",
             "data" : [
                [
                   "Perl",
                   2
                ]
-            ],
-            "id" : "James Smith",
-            "name" : "James Smith"
+            ]
          },
          {
-            "name" : "Jason Messer",
-            "id" : "Jason Messer",
             "data" : [
                [
                   "Raku",
                   2
                ]
-            ]
+            ],
+            "name" : "Jason Messer",
+            "id" : "Jason Messer"
          },
          {
             "data" : [
@@ -151,22 +129,22 @@
                   2
                ]
             ],
-            "id" : "Mark Anderson",
-            "name" : "Mark Anderson"
+            "name" : "Mark Anderson",
+            "id" : "Mark Anderson"
          },
          {
-            "name" : "Markus Holzer",
-            "id" : "Markus Holzer",
             "data" : [
                [
                   "Raku",
                   2
                ]
-            ]
+            ],
+            "id" : "Markus Holzer",
+            "name" : "Markus Holzer"
          },
          {
-            "id" : "Mohammad S Anwar",
             "name" : "Mohammad S Anwar",
+            "id" : "Mohammad S Anwar",
             "data" : [
                [
                   "Perl",
@@ -174,7 +152,7 @@
                ],
                [
                   "Raku",
-                  1
+                  2
                ]
             ]
          },
@@ -219,8 +197,8 @@
                   1
                ]
             ],
-            "id" : "Steven Wilson",
-            "name" : "Steven Wilson"
+            "name" : "Steven Wilson",
+            "id" : "Steven Wilson"
          },
          {
             "id" : "Ulrich Rieke",
@@ -237,8 +215,6 @@
             ]
          },
          {
-            "id" : "Walt Mankowski",
-            "name" : "Walt Mankowski",
             "data" : [
                [
                   "Perl",
@@ -248,27 +224,34 @@
                   "Blog",
                   1
                ]
-            ]
+            ],
+            "id" : "Walt Mankowski",
+            "name" : "Walt Mankowski"
          }
       ]
    },
    "chart" : {
       "type" : "column"
    },
-   "subtitle" : {
-      "text" : "[Champions: 20] Last updated at 2020-09-16 00:26:18 GMT"
+   "title" : {
+      "text" : "Perl Weekly Challenge - 078"
    },
-   "xAxis" : {
-      "type" : "category"
+   "plotOptions" : {
+      "series" : {
+         "dataLabels" : {
+            "format" : "{point.y}",
+            "enabled" : 1
+         },
+         "borderWidth" : 0
+      }
    },
    "series" : [
       {
-         "name" : "Perl Weekly Challenge - 078",
          "data" : [
             {
+               "drilldown" : "Abigail",
                "y" : 2,
-               "name" : "Abigail",
-               "drilldown" : "Abigail"
+               "name" : "Abigail"
             },
             {
                "y" : 2,
@@ -277,38 +260,38 @@
             },
             {
                "drilldown" : "Andinus",
-               "name" : "Andinus",
-               "y" : 4
+               "y" : 4,
+               "name" : "Andinus"
             },
             {
-               "y" : 3,
+               "name" : "Andrew Shitov",
                "drilldown" : "Andrew Shitov",
-               "name" : "Andrew Shitov"
+               "y" : 3
             },
             {
+               "y" : 2,
                "drilldown" : "Anton Fedotov",
-               "name" : "Anton Fedotov",
-               "y" : 2
+               "name" : "Anton Fedotov"
             },
             {
-               "y" : 2,
+               "name" : "Bob Lied",
                "drilldown" : "Bob Lied",
-               "name" : "Bob Lied"
+               "y" : 2
             },
             {
-               "y" : 2,
                "name" : "Dave Cross",
-               "drilldown" : "Dave Cross"
+               "drilldown" : "Dave Cross",
+               "y" : 2
             },
             {
-               "y" : 2,
                "name" : "Dave Jacoby",
-               "drilldown" : "Dave Jacoby"
+               "drilldown" : "Dave Jacoby",
+               "y" : 2
             },
             {
-               "drilldown" : "E. Choroba",
                "name" : "E. Choroba",
-               "y" : 2
+               "y" : 2,
+               "drilldown" : "E. Choroba"
             },
             {
                "y" : 2,
@@ -317,8 +300,8 @@
             },
             {
                "name" : "Jason Messer",
-               "drilldown" : "Jason Messer",
-               "y" : 2
+               "y" : 2,
+               "drilldown" : "Jason Messer"
             },
             {
                "y" : 2,
@@ -326,47 +309,64 @@
                "name" : "Mark Anderson"
             },
             {
+               "name" : "Markus Holzer",
                "y" : 2,
-               "drilldown" : "Markus Holzer",
-               "name" : "Markus Holzer"
+               "drilldown" : "Markus Holzer"
             },
             {
-               "name" : "Mohammad S Anwar",
+               "y" : 4,
                "drilldown" : "Mohammad S Anwar",
-               "y" : 3
+               "name" : "Mohammad S Anwar"
             },
             {
-               "y" : 2,
                "drilldown" : "Niels van Dijke",
+               "y" : 2,
                "name" : "Niels van Dijke"
             },
             {
                "drilldown" : "Roger Bell_West",
-               "name" : "Roger Bell_West",
-               "y" : 4
+               "y" : 4,
+               "name" : "Roger Bell_West"
             },
             {
+               "name" : "Simon Proctor",
                "y" : 2,
-               "drilldown" : "Simon Proctor",
-               "name" : "Simon Proctor"
+               "drilldown" : "Simon Proctor"
             },
             {
+               "drilldown" : "Steven Wilson",
                "y" : 1,
-               "name" : "Steven Wilson",
-               "drilldown" : "Steven Wilson"
+               "name" : "Steven Wilson"
             },
             {
+               "name" : "Ulrich Rieke",
                "y" : 4,
-               "drilldown" : "Ulrich Rieke",
-               "name" : "Ulrich Rieke"
+               "drilldown" : "Ulrich Rieke"
             },
             {
-               "y" : 3,
                "name" : "Walt Mankowski",
-               "drilldown" : "Walt Mankowski"
+               "drilldown" : "Walt Mankowski",
+               "y" : 3
             }
          ],
+         "name" : "Perl Weekly Challenge - 078",
          "colorByPoint" : 1
       }
-   ]
+   ],
+   "subtitle" : {
+      "text" : "[Champions: 20] Last updated at 2020-09-16 00:49:56 GMT"
+   },
+   "yAxis" : {
+      "title" : {
+         "text" : "Total Solutions"
+      }
+   },
+   "xAxis" : {
+      "type" : "category"
+   },
+   "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/>"
+   }
 }
diff --git a/stats/pwc-language-breakdown-summary.json b/stats/pwc-language-breakdown-summary.json
index 0999dd58f0..b54e02836a 100644
--- a/stats/pwc-language-breakdown-summary.json
+++ b/stats/pwc-language-breakdown-summary.json
@@ -1,6 +1,27 @@
 {
+   "subtitle" : {
+      "text" : "Last updated at 2020-09-16 00:49:56 GMT"
+   },
+   "yAxis" : {
+      "title" : {
+         "text" : null
+      },
+      "min" : 0
+   },
    "series" : [
       {
+         "dataLabels" : {
+            "y" : 10,
+            "align" : "right",
+            "rotation" : -90,
+            "format" : "{point.y:.0f}",
+            "style" : {
+               "fontSize" : "13px",
+               "fontFamily" : "Verdana, sans-serif"
+            },
+            "color" : "#FFFFFF",
+            "enabled" : "true"
+         },
          "data" : [
             [
                "Blog",
@@ -12,24 +33,15 @@
             ],
             [
                "Raku",
-               2135
+               2136
             ]
          ],
-         "dataLabels" : {
-            "color" : "#FFFFFF",
-            "style" : {
-               "fontFamily" : "Verdana, sans-serif",
-               "fontSize" : "13px"
-            },
-            "align" : "right",
-            "format" : "{point.y:.0f}",
-            "enabled" : "true",
-            "y" : 10,
-            "rotation" : -90
-         },
          "name" : "Contributions"
       }
    ],
+   "tooltip" : {
+      "pointFormat" : "<b>{point.y:.0f}</b>"
+   },
    "xAxis" : {
       "labels" : {
          "style" : {
@@ -39,25 +51,13 @@
       },
       "type" : "category"
    },
-   "chart" : {
-      "type" : "column"
-   },
-   "subtitle" : {
-      "text" : "Last updated at 2020-09-16 00:26:18 GMT"
-   },
-   "tooltip" : {
-      "pointFormat" : "<b>{point.y:.0f}</b>"
+   "title" : {
+      "text" : "Perl Weekly Challenge Contributions [2019 - 2020]"
    },
    "legend" : {
       "enabled" : "false"
    },
-   "yAxis" : {
-      "title" : {
-         "text" : null
-      },
-      "min" : 0
-   },
-   "title" : {
-      "text" : "Perl Weekly Challenge Contributions [2019 - 2020]"
+   "chart" : {
+      "type" : "column"
    }
 }
diff --git a/stats/pwc-language-breakdown.json b/stats/pwc-language-breakdown.json
index 2ccfa893aa..d7902a6a39 100644
--- a/stats/pwc-language-breakdown.json
+++ b/stats/pwc-language-breakdown.json
@@ -1,441 +1,7 @@
 {
-   "chart" : {
-      "type" : "column"
-   },
-   "subtitle" : {
-      "text" : "Click the columns to drilldown the language breakdown. Last updated at 2020-09-16 00:26:18 GMT"
-   },
-   "xAxis" : {
-      "type" : "category"
-   },
-   "series" : [
-      {
-         "colorByPoint" : "true",
-         "data" : [
-            {
-               "name" : "#001",
-               "drilldown" : "001",
-               "y" : 142
-            },
-            {
-               "y" : 111,
-               "name" : "#002",
-               "drilldown" : "002"
-            },
-            {
-               "y" : 71,
-               "drilldown" : "003",
-               "name" : "#003"
-            },
-            {
-               "y" : 91,
-               "name" : "#004",
-               "drilldown" : "004"
-            },
-            {
-               "y" : 72,
-               "drilldown" : "005",
-               "name" : "#005"
-            },
-            {
-               "y" : 52,
-               "name" : "#006",
-               "drilldown" : "006"
-            },
-            {
-               "drilldown" : "007",
-               "name" : "#007",
-               "y" : 59
-            },
-            {
-               "y" : 72,
-               "name" : "#008",
-               "drilldown" : "008"
-            },
-            {
-               "y" : 70,
-               "name" : "#009",
-               "drilldown" : "009"
-            },
-            {
-               "drilldown" : "010",
-               "name" : "#010",
-               "y" : 60
-            },
-            {
-               "y" : 79,
-               "drilldown" : "011",
-               "name" : "#011"
-            },
-            {
-               "name" : "#012",
-               "drilldown" : "012",
-               "y" : 83
-            },
-            {
-               "y" : 78,
-               "name" : "#013",
-               "drilldown" : "013"
-            },
-            {
-               "name" : "#014",
-               "drilldown" : "014",
-               "y" : 96
-            },
-            {
-               "name" : "#015",
-               "drilldown" : "015",
-               "y" : 93
-            },
-            {
-               "y" : 66,
-               "drilldown" : "016",
-               "name" : "#016"
-            },
-            {
-               "y" : 79,
-               "name" : "#017",
-               "drilldown" : "017"
-            },
-            {
-               "drilldown" : "018",
-               "name" : "#018",
-               "y" : 76
-            },
-            {
-               "y" : 97,
-               "drilldown" : "019",
-               "name" : "#019"
-            },
-            {
-               "name" : "#020",
-               "drilldown" : "020",
-               "y" : 95
-            },
-            {
-               "drilldown" : "021",
-               "name" : "#021",
-               "y" : 67
-            },
-            {
-               "drilldown" : "022",
-               "name" : "#022",
-               "y" : 63
-            },
-            {
-               "y" : 91,
-               "name" : "#023",
-               "drilldown" : "023"
-            },
-            {
-               "drilldown" : "024",
-               "name" : "#024",
-               "y" : 70
-            },
-            {
-               "name" : "#025",
-               "drilldown" : "025",
-               "y" : 55
-            },
-            {
-               "y" : 70,
-               "drilldown" : "026",
-               "name" : "#026"
-            },
-            {
-               "y" : 58,
-               "name" : "#027",
-               "drilldown" : "027"
-            },
-            {
-               "drilldown" : "028",
-               "name" : "#028",
-               "y" : 78
-            },
-            {
-               "y" : 77,
-               "name" : "#029",
-               "drilldown" : "029"
-            },
-            {
-               "y" : 115,
-               "drilldown" : "030",
-               "name" : "#030"
-            },
-            {
-               "y" : 87,
-               "name" : "#031",
-               "drilldown" : "031"
-            },
-            {
-               "drilldown" : "032",
-               "name" : "#032",
-               "y" : 92
-            },
-            {
-               "y" : 108,
-               "drilldown" : "033",
-               "name" : "#033"
-            },
-            {
-               "drilldown" : "034",
-               "name" : "#034",
-               "y" : 62
-            },
-            {
-               "y" : 62,
-               "name" : "#035",
-               "drilldown" : "035"
-            },
-            {
-               "y" : 66,
-               "drilldown" : "036",
-               "name" : "#036"
-            },
-            {
-               "y" : 65,
-               "name" : "#037",
-               "drilldown" : "037"
-            },
-            {
-               "y" : 65,
-               "drilldown" : "038",
-               "name" : "#038"
-            },
-            {
-               "y" : 60,
-               "drilldown" : "039",
-               "name" : "#039"
-            },
-            {
-               "name" : "#040",
-               "drilldown" : "040",
-               "y" : 71
-            },
-            {
-               "drilldown" : "041",
-               "name" : "#041",
-               "y" : 74
-            },
-            {
-               "y" : 88,
-               "name" : "#042",
-               "drilldown" : "042"
-            },
-            {
-               "name" : "#043",
-               "drilldown" : "043",
-               "y" : 66
-            },
-            {
-               "y" : 82,
-               "drilldown" : "044",
-               "name" : "#044"
-            },
-            {
-               "y" : 94,
-               "drilldown" : "045",
-               "name" : "#045"
-            },
-            {
-               "y" : 85,
-               "drilldown" : "046",
-               "name" : "#046"
-            },
-            {
-               "y" : 82,
-               "drilldown" : "047",
-               "name" : "#047"
-            },
-            {
-               "y" : 106,
-               "name" : "#048",
-               "drilldown" : "048"
-            },
-            {
-               "drilldown" : "049",
-               "name" : "#049",
-               "y" : 85
-            },
-            {
-               "y" : 96,
-               "name" : "#050",
-               "drilldown" : "050"
-            },
-            {
-               "name" : "#051",
-               "drilldown" : "051",
-               "y" : 87
-            },
-            {
-               "y" : 89,
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@@ -449,7 +15,9 @@
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