- Added Raku solution to "Leader Element" task.

14 files changed, 934 insertions, 844 deletions

diff --git a/challenge-078/mohammad-anwar/raku/ch-1.raku b/challenge-078/mohammad-anwar/raku/ch-1.raku
new file mode 100644
index 0000000000..96def316d5
--- /dev/null
+++ b/challenge-078/mohammad-anwar/raku/ch-1.raku
@@ -0,0 +1,40 @@
+#!/usr/bin/env raku
+
+#
+# Perl Weekly Challenge - 078
+#
+# Task #1: Leader Element
+#
+# https://perlweeklychallenge.org/blog/perl-weekly-challenge-078
+#
+
+use v6.d;
+
+sub MAIN(Str :$L = "9, 10, 7, 5, 6, 1") {
+    leader-elements($L).join(", ").say;
+}
+
+#
+#
+# METHOD
+
+sub leader-elements(Str $list) {
+
+    die "ERROR: Invalid list [$list].\n" unless $list ~~ /^[\-?\d\,?\s?]+$/;
+
+    my @array = $list.split(',').map: { .Int };
+    my $index = 0;
+    my @leader-elements = Empty;
+    for @array -> $n {
+        if $index == @array.elems-1 {
+            @leader-elements.push: $n;
+        }
+        else {
+            @leader-elements.push: $n
+                if $n > @array[$index+1 .. @array.elems-1].max;
+        }
+        $index++;
+    }
+
+    return |@leader-elements;
+}
diff --git a/challenge-078/mohammad-anwar/raku/ch-1.t b/challenge-078/mohammad-anwar/raku/ch-1.t
new file mode 100644
index 0000000000..15a0468f7d
--- /dev/null
+++ b/challenge-078/mohammad-anwar/raku/ch-1.t
@@ -0,0 +1,46 @@
+#!/usr/bin/env raku
+
+#
+# Perl Weekly Challenge - 078
+#
+# Task #1: Leader Element
+#
+# https://perlweeklychallenge.org/blog/perl-weekly-challenge-078
+#
+
+use Test;
+
+is-deeply leader-elements("9, 10, 7, 5, 6, 1"),
+          (10, 7, 6, 1),
+          "testing example 1";
+
+is-deeply leader-elements("3, 4, 5"),
+          (5),
+          "testing example 2";
+
+done-testing;
+
+#
+#
+# METHOD
+
+sub leader-elements(Str $list) {
+
+    die "ERROR: Invalid list [$list].\n" unless $list ~~ /^[\-?\d\,?\s?]+$/;
+
+    my @array = $list.split(',').map: { .Int };
+    my $index = 0;
+    my @leader-elements = Empty;
+    for @array -> $n {
+        if $index == @array.elems-1 {
+            @leader-elements.push: $n;
+        }
+        else {
+            @leader-elements.push: $n
+                if $n > @array[$index+1 .. @array.elems-1].max;
+        }
+        $index++;
+    }
+
+    return |@leader-elements;
+}
diff --git a/stats/pwc-current.json b/stats/pwc-current.json
index 7beaad456d..4e7c179b65 100644
--- a/stats/pwc-current.json
+++ b/stats/pwc-current.json
@@ -1,4 +1,19 @@
 {
+   "plotOptions" : {
+      "series" : {
+         "borderWidth" : 0,
+         "dataLabels" : {
+            "format" : "{point.y}",
+            "enabled" : 1
+         }
+      }
+   },
+   "title" : {
+      "text" : "Perl Weekly Challenge - 078"
+   },
+   "subtitle" : {
+      "text" : "[Champions: 20] Last updated at 2020-09-15 21:21:24 GMT"
+   },
    "drilldown" : {
       "series" : [
          {
@@ -8,20 +23,22 @@
                   2
                ]
             ],
-            "id" : "Abigail",
-            "name" : "Abigail"
+            "name" : "Abigail",
+            "id" : "Abigail"
          },
          {
             "name" : "Alexander Pankoff",
-            "id" : "Alexander Pankoff",
             "data" : [
                [
                   "Perl",
                   2
                ]
-            ]
+            ],
+            "id" : "Alexander Pankoff"
          },
          {
+            "id" : "Andinus",
+            "name" : "Andinus",
             "data" : [
                [
                   "Perl",
@@ -31,9 +48,7 @@
                   "Blog",
                   2
                ]
-            ],
-            "id" : "Andinus",
-            "name" : "Andinus"
+            ]
          },
          {
             "data" : [
@@ -46,28 +61,28 @@
                   1
                ]
             ],
-            "id" : "Andrew Shitov",
-            "name" : "Andrew Shitov"
+            "name" : "Andrew Shitov",
+            "id" : "Andrew Shitov"
          },
          {
-            "name" : "Anton Fedotov",
             "id" : "Anton Fedotov",
             "data" : [
                [
                   "Perl",
                   2
                ]
-            ]
+            ],
+            "name" : "Anton Fedotov"
          },
          {
             "id" : "Bob Lied",
-            "name" : "Bob Lied",
             "data" : [
                [
                   "Perl",
                   2
                ]
-            ]
+            ],
+            "name" : "Bob Lied"
          },
          {
             "data" : [
@@ -80,8 +95,8 @@
             "id" : "Dave Cross"
          },
          {
-            "name" : "Dave Jacoby",
             "id" : "Dave Jacoby",
+            "name" : "Dave Jacoby",
             "data" : [
                [
                   "Perl",
@@ -90,68 +105,72 @@
             ]
          },
          {
-            "id" : "E. Choroba",
-            "name" : "E. Choroba",
             "data" : [
                [
                   "Perl",
                   2
                ]
-            ]
+            ],
+            "name" : "E. Choroba",
+            "id" : "E. Choroba"
          },
          {
+            "id" : "James Smith",
+            "name" : "James Smith",
             "data" : [
                [
                   "Perl",
                   2
                ]
-            ],
-            "name" : "James Smith",
-            "id" : "James Smith"
+            ]
          },
          {
-            "name" : "Jason Messer",
             "id" : "Jason Messer",
             "data" : [
                [
                   "Raku",
                   2
                ]
-            ]
+            ],
+            "name" : "Jason Messer"
          },
          {
+            "id" : "Mark Anderson",
             "data" : [
                [
                   "Raku",
                   2
                ]
             ],
-            "id" : "Mark Anderson",
             "name" : "Mark Anderson"
          },
          {
+            "id" : "Markus Holzer",
             "data" : [
                [
                   "Raku",
                   2
                ]
             ],
-            "name" : "Markus Holzer",
-            "id" : "Markus Holzer"
+            "name" : "Markus Holzer"
          },
          {
+            "name" : "Mohammad S Anwar",
             "data" : [
                [
                   "Perl",
                   1
+               ],
+               [
+                  "Raku",
+                  1
                ]
             ],
-            "id" : "Mohammad S Anwar",
-            "name" : "Mohammad S Anwar"
+            "id" : "Mohammad S Anwar"
          },
          {
-            "name" : "Niels van Dijke",
             "id" : "Niels van Dijke",
+            "name" : "Niels van Dijke",
             "data" : [
                [
                   "Perl",
@@ -160,7 +179,6 @@
             ]
          },
          {
-            "name" : "Roger Bell_West",
             "id" : "Roger Bell_West",
             "data" : [
                [
@@ -171,21 +189,22 @@
                   "Raku",
                   2
                ]
-            ]
+            ],
+            "name" : "Roger Bell_West"
          },
          {
-            "name" : "Simon Proctor",
-            "id" : "Simon Proctor",
             "data" : [
                [
                   "Raku",
                   2
                ]
-            ]
+            ],
+            "name" : "Simon Proctor",
+            "id" : "Simon Proctor"
          },
          {
-            "name" : "Steven Wilson",
             "id" : "Steven Wilson",
+            "name" : "Steven Wilson",
             "data" : [
                [
                   "Perl",
@@ -194,6 +213,8 @@
             ]
          },
          {
+            "id" : "Ulrich Rieke",
+            "name" : "Ulrich Rieke",
             "data" : [
                [
                   "Perl",
@@ -203,11 +224,10 @@
                   "Raku",
                   2
                ]
-            ],
-            "id" : "Ulrich Rieke",
-            "name" : "Ulrich Rieke"
+            ]
          },
          {
+            "name" : "Walt Mankowski",
             "data" : [
                [
                   "Perl",
@@ -218,37 +238,25 @@
                   1
                ]
             ],
-            "id" : "Walt Mankowski",
-            "name" : "Walt Mankowski"
+            "id" : "Walt Mankowski"
          }
       ]
    },
-   "subtitle" : {
-      "text" : "[Champions: 20] Last updated at 2020-09-15 19:34:40 GMT"
-   },
-   "chart" : {
-      "type" : "column"
-   },
-   "title" : {
-      "text" : "Perl Weekly Challenge - 078"
-   },
-   "yAxis" : {
-      "title" : {
-         "text" : "Total Solutions"
-      }
+   "legend" : {
+      "enabled" : 0
    },
    "series" : [
       {
          "colorByPoint" : 1,
          "data" : [
             {
-               "y" : 2,
                "drilldown" : "Abigail",
-               "name" : "Abigail"
+               "name" : "Abigail",
+               "y" : 2
             },
             {
-               "drilldown" : "Alexander Pankoff",
                "name" : "Alexander Pankoff",
+               "drilldown" : "Alexander Pankoff",
                "y" : 2
             },
             {
@@ -257,18 +265,18 @@
                "drilldown" : "Andinus"
             },
             {
-               "drilldown" : "Andrew Shitov",
                "name" : "Andrew Shitov",
+               "drilldown" : "Andrew Shitov",
                "y" : 3
             },
             {
-               "y" : 2,
                "name" : "Anton Fedotov",
-               "drilldown" : "Anton Fedotov"
+               "drilldown" : "Anton Fedotov",
+               "y" : 2
             },
             {
-               "drilldown" : "Bob Lied",
                "name" : "Bob Lied",
+               "drilldown" : "Bob Lied",
                "y" : 2
             },
             {
@@ -282,19 +290,19 @@
                "y" : 2
             },
             {
+               "y" : 2,
                "name" : "E. Choroba",
-               "drilldown" : "E. Choroba",
-               "y" : 2
+               "drilldown" : "E. Choroba"
             },
             {
+               "y" : 2,
                "name" : "James Smith",
-               "drilldown" : "James Smith",
-               "y" : 2
+               "drilldown" : "James Smith"
             },
             {
                "y" : 2,
-               "drilldown" : "Jason Messer",
-               "name" : "Jason Messer"
+               "name" : "Jason Messer",
+               "drilldown" : "Jason Messer"
             },
             {
                "name" : "Mark Anderson",
@@ -302,24 +310,24 @@
                "y" : 2
             },
             {
+               "y" : 2,
                "drilldown" : "Markus Holzer",
-               "name" : "Markus Holzer",
-               "y" : 2
+               "name" : "Markus Holzer"
             },
             {
-               "y" : 1,
-               "name" : "Mohammad S Anwar",
-               "drilldown" : "Mohammad S Anwar"
+               "y" : 2,
+               "drilldown" : "Mohammad S Anwar",
+               "name" : "Mohammad S Anwar"
             },
             {
-               "drilldown" : "Niels van Dijke",
+               "y" : 2,
                "name" : "Niels van Dijke",
-               "y" : 2
+               "drilldown" : "Niels van Dijke"
             },
             {
+               "y" : 4,
                "drilldown" : "Roger Bell_West",
-               "name" : "Roger Bell_West",
-               "y" : 4
+               "name" : "Roger Bell_West"
             },
             {
                "name" : "Simon Proctor",
@@ -332,33 +340,29 @@
                "drilldown" : "Steven Wilson"
             },
             {
-               "y" : 4,
+               "drilldown" : "Ulrich Rieke",
                "name" : "Ulrich Rieke",
-               "drilldown" : "Ulrich Rieke"
+               "y" : 4
             },
             {
-               "name" : "Walt Mankowski",
                "drilldown" : "Walt Mankowski",
+               "name" : "Walt Mankowski",
                "y" : 3
             }
          ],
          "name" : "Perl Weekly Challenge - 078"
       }
    ],
-   "xAxis" : {
-      "type" : "category"
-   },
-   "plotOptions" : {
-      "series" : {
-         "borderWidth" : 0,
-         "dataLabels" : {
-            "enabled" : 1,
-            "format" : "{point.y}"
-         }
+   "yAxis" : {
+      "title" : {
+         "text" : "Total Solutions"
       }
    },
-   "legend" : {
-      "enabled" : 0
+   "chart" : {
+      "type" : "column"
+   },
+   "xAxis" : {
+      "type" : "category"
    },
    "tooltip" : {
       "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 56ac40b555..70945bf6b9 100644
--- a/stats/pwc-language-breakdown-summary.json
+++ b/stats/pwc-language-breakdown-summary.json
@@ -1,33 +1,18 @@
 {
-   "xAxis" : {
-      "type" : "category",
-      "labels" : {
-         "style" : {
-            "fontFamily" : "Verdana, sans-serif",
-            "fontSize" : "13px"
-         }
-      }
-   },
-   "legend" : {
-      "enabled" : "false"
-   },
-   "tooltip" : {
-      "pointFormat" : "<b>{point.y:.0f}</b>"
-   },
    "subtitle" : {
-      "text" : "Last updated at 2020-09-15 19:34:40 GMT"
+      "text" : "Last updated at 2020-09-15 21:21:24 GMT"
    },
    "title" : {
       "text" : "Perl Weekly Challenge Contributions [2019 - 2020]"
    },
-   "chart" : {
-      "type" : "column"
+   "legend" : {
+      "enabled" : "false"
    },
    "yAxis" : {
+      "min" : 0,
       "title" : {
          "text" : null
-      },
-      "min" : 0
+      }
    },
    "series" : [
       {
@@ -43,21 +28,36 @@
             ],
             [
                "Raku",
-               2134
+               2135
             ]
          ],
          "dataLabels" : {
-            "rotation" : -90,
-            "y" : 10,
-            "format" : "{point.y:.0f}",
             "color" : "#FFFFFF",
+            "format" : "{point.y:.0f}",
             "align" : "right",
             "enabled" : "true",
             "style" : {
                "fontSize" : "13px",
                "fontFamily" : "Verdana, sans-serif"
-            }
+            },
+            "y" : 10,
+            "rotation" : -90
          }
       }
-   ]
+   ],
+   "chart" : {
+      "type" : "column"
+   },
+   "tooltip" : {
+      "pointFormat" : "<b>{point.y:.0f}</b>"
+   },
+   "xAxis" : {
+      "labels" : {
+         "style" : {
+            "fontFamily" : "Verdana, sans-serif",
+            "fontSize" : "13px"
+         }
+      },
+      "type" : "category"
+   }
 }
diff --git a/stats/pwc-language-breakdown.json b/stats/pwc-language-breakdown.json
index 01e539868c..5b5961afd1 100644
--- a/stats/pwc-language-breakdown.json
+++ b/stats/pwc-language-breakdown.json
@@ -1,7 +1,19 @@
 {
+   "chart" : {
+      "type" : "column"
+   },
+   "tooltip" : {
+      "pointFormat" : "<span style=\"color:{point.color}\">Challenge {point.name}</span>: <b>{point.y:f}</b><br/>",
+      "headerFormat" : "<span style=\"font-size:11px\"></span>",
+      "followPointer" : "true"
+   },
+   "xAxis" : {
+      "type" : "category"
+   },
    "drilldown" : {
       "series" : [
          {
+            "name" : "001",
             "data" : [
                [
                   "Perl",
@@ -16,10 +28,10 @@
                   11
                ]
             ],
-            "id" : "001",
-            "name" : "001"
+            "id" : "001"
          },
          {
+            "name" : "002",
             "data" : [
                [
                   "Perl",
@@ -34,12 +46,11 @@
                   10
                ]
             ],
-            "name" : "002",
             "id" : "002"
          },
          {
-            "name" : "003",
             "id" : "003",
+            "name" : "003",
             "data" : [
                [
                   "Perl",
@@ -56,8 +67,6 @@
             ]
          },
          {
-            "name" : "004",
-            "id" : "004",
             "data" : [
                [
                   "Perl",
@@ -71,9 +80,12 @@
                   "Blog",
                   10
                ]
-            ]
+            ],
+            "name" : "004",
+            "id" : "004"
          },
          {
+            "name" : "005",
             "data" : [
                [
                   "Perl",
@@ -88,12 +100,10 @@
                   12
                ]
             ],
-            "name" : "005",
             "id" : "005"
          },
          {
             "id" : "006",
-            "name" : "006",
             "data" : [
                [
                   "Perl",
@@ -107,11 +117,10 @@
                   "Blog",
                   7
                ]
-            ]
+            ],
+            "name" : "006"
          },
          {
-            "name" : "007",
-            "id" : "007",
             "data" : [
                [
                   "Perl",
@@ -125,11 +134,12 @@
                   "Blog",
                   10
                ]
-            ]
+            ],
+            "name" : "007",
+            "id" : "007"
          },
          {
             "name" : "008",
-            "id" : "008",
             "data" : [
                [
                   "Perl",
@@ -143,9 +153,12 @@
                   "Blog",
                   12
                ]
-            ]
+            ],
+            "id" : "008"
          },
          {
+            "id" : "009",
+            "name" : "009",
             "data" : [
                [
                   "Perl",
@@ -159,12 +172,9 @@
                   "Blog",
                   13
                ]
-            ],
-            "name" : "009",
-            "id" : "009"
+            ]
          },
          {
-            "id" : "010",
             "name" : "010",
             "data" : [
                [
@@ -179,9 +189,12 @@
                   "Blog",
                   11
                ]
-            ]
+            ],
+            "id" : "010"
          },
          {
+            "id" : "011",
+            "name" : "011",
             "data" : [
                [
                   "Perl",
@@ -195,11 +208,11 @@
                   "Blog",
                   10
                ]
-            ],
-            "id" : "011",
-            "name" : "011"
+            ]
          },
          {
+            "id" : "012",
+            "name" : "012",
             "data" : [
                [
                   "Perl",
@@ -213,11 +226,10 @@
                   "Blog",
                   11
                ]
-            ],
-            "name" : "012",
-            "id" : "012"
+            ]
          },
          {
+            "id" : "013",
             "data" : [
                [
                   "Perl",
@@ -232,10 +244,11 @@
                   13
                ]
             ],
-            "name" : "013",
-            "id" : "013"
+            "name" : "013"
          },
          {
+            "id" : "014",
+            "name" : "014",
             "data" : [
                [
                   "Perl",
@@ -249,12 +262,9 @@
                   "Blog",
                   15
                ]
-            ],
-            "id" : "014",
-            "name" : "014"
+            ]
          },
          {
-            "id" : "015",
             "name" : "015",
             "data" : [
                [
@@ -269,9 +279,11 @@
                   "Blog",
                   15
                ]
-            ]
+            ],
+            "id" : "015"
          },
          {
+            "name" : "016",
             "data" : [
                [
                   "Perl",
@@ -286,10 +298,10 @@
                   12
                ]
             ],
-            "name" : "016",
             "id" : "016"
          },
          {
+            "id" : "017",
             "data" : [
                [
                   "Perl",
@@ -304,12 +316,9 @@
                   12
                ]
             ],
-            "name" : "017",
-            "id" : "017"
+            "name" : "017"
          },
          {
-            "name" : "018",
-            "id" : "018",
             "data" : [
                [
                   "Perl",
@@ -323,11 +332,11 @@
                   "Blog",
                   14
                ]
-            ]
+            ],
+            "name" : "018",
+            "id" : "018"
          },
          {
-            "id" : "019",
-            "name" : "019",
             "data" : [
                [
                   "Perl",
@@ -341,9 +350,12 @@
                   "Blog",
                   13
                ]
-            ]
+            ],
+            "name" : "019",
+            "id" : "019"
          },
          {
+            "name" : "020",
             "data" : [
                [
                   "Perl",
@@ -358,11 +370,9 @@
                   13
                ]
             ],
-            "name" : "020",
             "id" : "020"
          },
          {
-            "id" : "021",
             "name" : "021",
             "data" : [
                [
@@ -377,9 +387,11 @@
                   "Blog",
                   10
                ]
-            ]
+            ],
+            "id" : "021"
          },
          {
+            "name" : "022",
             "data" : [
                [
                   "Perl",
@@ -394,8 +406,7 @@
                   10
                ]
             ],
-            "id" : "022",
-            "name" : "022"
+            "id" : "022"
          },
          {
             "data" : [
@@ -412,8 +423,8 @@
                   12
                ]
             ],
-            "id" : "023",
-            "name" : "023"
+            "name" : "023",
+            "id" : "023"
          },
          {
             "data" : [
@@ -430,12 +441,11 @@
                   11
                ]
             ],
-            "id" : "024",
-            "name" : "024"
+            "name" : "024",
+            "id" : "024"
          },
          {
             "id" : "025",
-            "name" : "025",
             "data" : [
                [
                   "Perl",
@@ -449,11 +459,12 @@
                   "Blog",
                   12
                ]
-            ]
+            ],
+            "name" : "025"
          },
          {
-            "name" : "026",
             "id" : "026",
+            "name" : "026",
             "data" : [
                [
                   "Perl",
@@ -470,8 +481,8 @@
             ]
          },
          {
-            "name" : "027",
             "id" : "027",
+            "name" : "027",
             "data" : [
                [
                   "Perl",
@@ -488,7 +499,6 @@
             ]
          },
          {
-            "name" : "028",
             "id" : "028",
             "data" : [
                [
@@ -503,9 +513,11 @@
                   "Blog",
                   9
                ]
-            ]
+            ],
+            "name" : "028"
          },
          {
+            "id" : "029",
             "data" : [
                [
                   "Perl",
@@ -520,12 +532,11 @@
                   12
                ]
             ],
-            "name" : "029",
-            "id" : "029"
+            "name" : "029"
          },
          {
-            "name" : "030",
             "id" : "030",
+            "name" : "030",
             "data" : [
                [
                   "Perl",
@@ -614,8 +625,6 @@
             ]
          },
          {
-            "id" : "035",
-            "name" : "035",
             "data" : [
                [
                   "Perl",
@@ -629,7 +638,9 @@
                   "Blog",
                   9
                ]
-            ]
+            ],
+            "name" : "035",
+            "id" : "035"
          },
          {
             "id" : "036",
@@ -650,6 +661,8 @@
             ]
          },
          {
+            "id" : "037",
+            "name" : "037",
             "data" : [
                [
                   "Perl",
@@ -663,11 +676,10 @@
                   "Blog",
                   9
                ]
-            ],
-            "name" : "037",
-            "id" : "037"
+            ]
          },
          {
+            "id" : "038",
             "data" : [
                [
                   "Perl",
@@ -682,12 +694,9 @@
                   12
                ]
             ],
-            "name" : "038",
-            "id" : "038"
+            "name" : "038"
          },
          {
-            "name" : "039",
-            "id" : "039",
             "data" : [
                [
                   "Perl",
@@ -701,11 +710,11 @@
                   "Blog",
                   12
                ]
-            ]
+            ],
+            "name" : "039",
+            "id" : "039"
          },
          {
-            "id" : "040",
-            "name" : "040",
             "data" : [
                [
                   "Perl",
@@ -719,9 +728,13 @@
                   "Blog",
                   10
                ]
-            ]
+            ],
+            "name" : "040",
+            "id" : "040"
          },
          {
+            "id" : "041",
+            "name" : "041",
             "data" : [
                [
                   "Perl",
@@ -735,13 +748,10 @@
                   "Blog",
                   9
                ]
-            ],
-            "id" : "041",
-            "name" : "041"
+            ]
          },
          {
             "name" : "042",
-            "id" : "042",
             "data" : [
                [
                   "Perl",
@@ -755,7 +765,8 @@
                   "Blog",
                   11
                ]
-            ]
+            ],
+            "id" : "042"
          },
          {
             "id" : "043",
@@ -777,7 +788,6 @@
          },
          {
             "name" : "044",
-            "id" : "044",
             "data" : [
                [
                   "Perl",
@@ -791,10 +801,10 @@
                   "Blog",
                   11
                ]
-            ]
+            ],
+            "id" : "044"
          },
          {
-            "name" : "045",
             "id" : "045",
             "data" : [
                [
@@ -809,11 +819,10 @@
                   "Blog",
                   11
                ]
-            ]