- Added solutions by Laurent Rosenfeld.

17 files changed, 742 insertions, 672 deletions

diff --git a/challenge-029/laurent-rosenfeld/blog.txt b/challenge-029/laurent-rosenfeld/blog.txt
new file mode 100644
index 0000000000..a30d91efc6
--- /dev/null
+++ b/challenge-029/laurent-rosenfeld/blog.txt
@@ -0,0 +1 @@
+http://blogs.perl.org/users/laurent_r/2019/10/perl-weekly-challenge-29-brace-expansion-and-calling-c-code.html
diff --git a/challenge-029/laurent-rosenfeld/perl5/ch-1.pl b/challenge-029/laurent-rosenfeld/perl5/ch-1.pl
new file mode 100644
index 0000000000..43fc1d3f24
--- /dev/null
+++ b/challenge-029/laurent-rosenfeld/perl5/ch-1.pl
@@ -0,0 +1,9 @@
+#!/usr/bin/perl
+use strict;
+use warnings;
+use feature qw/say/;
+
+my $in_str = shift // "Perl {Daily,Weekly,Monthly,Yearly} Challenge";
+my ($start, $options, $end) = $in_str =~ /([^{]+) \{ ([^}]+) \} (.+)/x;
+s/^ +| +$//g for ($start, $options, $end); # removing leading or trailing spaces
+say "$start $_ $end" for split / *, */, $options;
diff --git a/challenge-029/laurent-rosenfeld/perl6/ch-1.p6 b/challenge-029/laurent-rosenfeld/perl6/ch-1.p6
new file mode 100644
index 0000000000..788626b648
--- /dev/null
+++ b/challenge-029/laurent-rosenfeld/perl6/ch-1.p6
@@ -0,0 +1,8 @@
+use v6;
+
+sub MAIN (Str $input = 'Perl {Daily,Weekly,Monthly,Yearly} Challenge') {
+    my $match = $input ~~ /(<-[{]>+) '{' (<-[}]>+) '}' (.+)/;
+    my ($start, $options, $end) = map { ~$_ }, $match[0 .. 2];
+    s:g/^ \h+ | \h+ $// for $start, $options, $end;
+    say "$start $_ $end" for $options.split(/\s*','\s*/);
+}
diff --git a/challenge-029/laurent-rosenfeld/perl6/ch-2.p6 b/challenge-029/laurent-rosenfeld/perl6/ch-2.p6
new file mode 100644
index 0000000000..c3b03df713
--- /dev/null
+++ b/challenge-029/laurent-rosenfeld/perl6/ch-2.p6
@@ -0,0 +1,21 @@
+use v6;
+use NativeCall;
+
+sub fib(int32)
+    returns int32
+    is native('./fibonacci.dll')
+    { * }
+
+sub fib-p6 (Int $num) {
+    return 1 if $num == 0 or $num == 1;
+    return fib-p6($num - 1) + fib-p6($num - 2);
+}
+
+sub MAIN (Int $num where * >= 0 = 36 ) {
+    my $start-time = INIT now;
+    say "C library function: ", fib($num);
+    say "Duration C function: ", now - $start-time;
+    my $now = now;
+    say "P6 subroutine: ", fib-p6 $num;
+    say "Duration P6 subroutine: ", now - $now;
+}
diff --git a/challenge-029/laurent-rosenfeld/perl6/fibonacci.c b/challenge-029/laurent-rosenfeld/perl6/fibonacci.c
new file mode 100644
index 0000000000..15678d5066
--- /dev/null
+++ b/challenge-029/laurent-rosenfeld/perl6/fibonacci.c
@@ -0,0 +1,8 @@
+#include <stdio.h>
+int fib (int a) {
+    if (a == 0 || a == 1) {
+        return 1;
+    } else {
+        return fib(a -1 ) + fib(a - 2);
+    }
+}
diff --git a/challenge-029/laurent-rosenfeld/perl6/fibonacci.dll b/challenge-029/laurent-rosenfeld/perl6/fibonacci.dll
new file mode 100755
index 0000000000..730734947f
--- /dev/null
+++ b/challenge-029/laurent-rosenfeld/perl6/fibonacci.dll
diff --git a/challenge-029/laurent-rosenfeld/perl6/fibonacci.o b/challenge-029/laurent-rosenfeld/perl6/fibonacci.o
new file mode 100644
index 0000000000..913387d1ac
--- /dev/null
+++ b/challenge-029/laurent-rosenfeld/perl6/fibonacci.o
diff --git a/stats/pwc-current.json b/stats/pwc-current.json
index 2c2e164948..57297d1613 100644
--- a/stats/pwc-current.json
+++ b/stats/pwc-current.json
@@ -1,17 +1,23 @@
 {
-   "title" : {
-      "text" : "Perl Weekly Challenge - 029"
-   },
    "subtitle" : {
-      "text" : "[Champions: 21] Last updated at 2019-10-13 15:15:07 GMT"
+      "text" : "[Champions: 22] Last updated at 2019-10-13 15:26:08 GMT"
    },
-   "legend" : {
-      "enabled" : 0
+   "chart" : {
+      "type" : "column"
    },
    "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/>",
-      "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/>"
+   },
+   "plotOptions" : {
+      "series" : {
+         "borderWidth" : 0,
+         "dataLabels" : {
+            "enabled" : 1,
+            "format" : "{point.y}"
+         }
+      }
    },
    "drilldown" : {
       "series" : [
@@ -26,6 +32,8 @@
             "id" : "Andrezgz"
          },
          {
+            "name" : "Arne Sommer",
+            "id" : "Arne Sommer",
             "data" : [
                [
                   "Perl 6",
@@ -35,42 +43,40 @@
                   "Blog",
                   1
                ]
-            ],
-            "name" : "Arne Sommer",
-            "id" : "Arne Sommer"
+            ]
          },
          {
-            "name" : "Burkhard Nickels",
+            "id" : "Burkhard Nickels",
             "data" : [
                [
                   "Perl 5",
                   2
                ]
             ],
-            "id" : "Burkhard Nickels"
+            "name" : "Burkhard Nickels"
          },
          {
-            "name" : "Daniel Mita",
             "data" : [
                [
                   "Perl 6",
                   2
                ]
             ],
-            "id" : "Daniel Mita"
+            "id" : "Daniel Mita",
+            "name" : "Daniel Mita"
          },
          {
             "id" : "Dave Cross",
-            "name" : "Dave Cross",
             "data" : [
                [
                   "Perl 5",
                   2
                ]
-            ]
+            ],
+            "name" : "Dave Cross"
          },
          {
-            "name" : "Dave Jacoby",
+            "id" : "Dave Jacoby",
             "data" : [
                [
                   "Perl 5",
@@ -81,11 +87,11 @@
                   1
                ]
             ],
-            "id" : "Dave Jacoby"
+            "name" : "Dave Jacoby"
          },
          {
-            "id" : "Duane Powell",
             "name" : "Duane Powell",
+            "id" : "Duane Powell",
             "data" : [
                [
                   "Perl 5",
@@ -114,18 +120,18 @@
                   2
                ]
             ],
-            "name" : "Joelle Maslak",
-            "id" : "Joelle Maslak"
+            "id" : "Joelle Maslak",
+            "name" : "Joelle Maslak"
          },
          {
             "id" : "Kevin Colyer",
-            "name" : "Kevin Colyer",
             "data" : [
                [
                   "Perl 6",
                   2
                ]
-            ]
+            ],
+            "name" : "Kevin Colyer"
          },
          {
             "data" : [
@@ -134,71 +140,90 @@
                   2
                ]
             ],
-            "name" : "Kivanc Yazan",
-            "id" : "Kivanc Yazan"
+            "id" : "Kivanc Yazan",
+            "name" : "Kivanc Yazan"
          },
          {
-            "id" : "Lars Thegler",
             "data" : [
                [
                   "Perl 5",
                   2
                ]
             ],
+            "id" : "Lars Thegler",
             "name" : "Lars Thegler"
          },
          {
+            "name" : "Laurent Rosenfeld",
+            "data" : [
+               [
+                  "Perl 5",
+                  1
+               ],
+               [
+                  "Perl 6",
+                  2
+               ],
+               [
+                  "Blog",
+                  1
+               ]
+            ],
+            "id" : "Laurent Rosenfeld"
+         },
+         {
             "id" : "Lubos Kolouch",
-            "name" : "Lubos Kolouch",
             "data" : [
                [
                   "Perl 5",
                   2
                ]
-            ]
+            ],
+            "name" : "Lubos Kolouch"
          },
          {
             "id" : "Markus Holzer",
-            "name" : "Markus Holzer",
             "data" : [
                [
                   "Perl 6",
                   2
                ]
-            ]
+            ],
+            "name" : "Markus Holzer"
          },
          {
+            "name" : "Noud",
             "id" : "Noud",
             "data" : [
                [
                   "Perl 6",
                   2
                ]
-            ],
-            "name" : "Noud"
+            ]
          },
          {
             "name" : "Prajith P",
+            "id" : "Prajith P",
             "data" : [
                [
                   "Perl 5",
                   1
                ]
-            ],
-            "id" : "Prajith P"
+            ]
          },
          {
-            "name" : "Rage311",
+            "id" : "Rage311",
             "data" : [
                [
                   "Perl 5",
                   2
                ]
             ],
-            "id" : "Rage311"
+            "name" : "Rage311"
          },
          {
             "name" : "Roger Bell West",
+            "id" : "Roger Bell West",
             "data" : [
                [
                   "Perl 5",
@@ -212,21 +237,19 @@
                   "Blog",
                   1
                ]
-            ],
-            "id" : "Roger Bell West"
+            ]
          },
          {
             "name" : "Steven Wilson",
+            "id" : "Steven Wilson",
             "data" : [
                [
                   "Perl 5",
                   1
                ]
-            ],
-            "id" : "Steven Wilson"
+            ]
          },
          {
-            "id" : "Ulrich Rieke",
             "data" : [
                [
                   "Perl 5",
@@ -237,9 +260,12 @@
                   2
                ]
             ],
+            "id" : "Ulrich Rieke",
             "name" : "Ulrich Rieke"
          },
          {
+            "name" : "Yet Ebreo",
+            "id" : "Yet Ebreo",
             "data" : [
                [
                   "Perl 5",
@@ -253,39 +279,27 @@
                   "Blog",
                   2
                ]
-            ],
-            "name" : "Yet Ebreo",
-            "id" : "Yet Ebreo"
+            ]
          }
       ]
    },
-   "plotOptions" : {
-      "series" : {
-         "dataLabels" : {
-            "enabled" : 1,
-            "format" : "{point.y}"
-         },
-         "borderWidth" : 0
-      }
-   },
-   "yAxis" : {
-      "title" : {
-         "text" : "Total Solutions"
-      }
+   "title" : {
+      "text" : "Perl Weekly Challenge - 029"
    },
    "series" : [
       {
          "colorByPoint" : 1,
+         "name" : "Perl Weekly Challenge - 029",
          "data" : [
             {
-               "name" : "Andrezgz",
+               "y" : 2,
                "drilldown" : "Andrezgz",
-               "y" : 2
+               "name" : "Andrezgz"
             },
             {
-               "name" : "Arne Sommer",
                "y" : 3,
-               "drilldown" : "Arne Sommer"
+               "drilldown" : "Arne Sommer",
+               "name" : "Arne Sommer"
             },
             {
                "name" : "Burkhard Nickels",
@@ -294,18 +308,18 @@
             },
             {
                "name" : "Daniel Mita",
-               "drilldown" : "Daniel Mita",
-               "y" : 2
+               "y" : 2,
+               "drilldown" : "Daniel Mita"
             },
             {
-               "name" : "Dave Cross",
+               "y" : 2,
                "drilldown" : "Dave Cross",
-               "y" : 2
+               "name" : "Dave Cross"
             },
             {
-               "name" : "Dave Jacoby",
+               "drilldown" : "Dave Jacoby",
                "y" : 3,
-               "drilldown" : "Dave Jacoby"
+               "name" : "Dave Jacoby"
             },
             {
                "name" : "Duane Powell",
@@ -313,34 +327,39 @@
                "drilldown" : "Duane Powell"
             },
             {
-               "name" : "E. Choroba",
+               "y" : 2,
                "drilldown" : "E. Choroba",
-               "y" : 2
+               "name" : "E. Choroba"
             },
             {
-               "y" : 4,
                "drilldown" : "Joelle Maslak",
+               "y" : 4,
                "name" : "Joelle Maslak"
             },
             {
+               "name" : "Kevin Colyer",
                "drilldown" : "Kevin Colyer",
-               "y" : 2,
-               "name" : "Kevin Colyer"
+               "y" : 2
             },
             {
+               "name" : "Kivanc Yazan",
                "drilldown" : "Kivanc Yazan",
-               "y" : 2,
-               "name" : "Kivanc Yazan"
+               "y" : 2
             },
             {
-               "drilldown" : "Lars Thegler",
+               "name" : "Lars Thegler",
                "y" : 2,
-               "name" : "Lars Thegler"
+               "drilldown" : "Lars Thegler"
+            },
+            {
+               "y" : 4,
+               "drilldown" : "Laurent Rosenfeld",
+               "name" : "Laurent Rosenfeld"
             },
             {
-               "name" : "Lubos Kolouch",
                "y" : 2,
-               "drilldown" : "Lubos Kolouch"
+               "drilldown" : "Lubos Kolouch",
+               "name" : "Lubos Kolouch"
             },
             {
                "name" : "Markus Holzer",
@@ -348,48 +367,52 @@
                "drilldown" : "Markus Holzer"
             },
             {
-               "y" : 2,
+               "name" : "Noud",
                "drilldown" : "Noud",
-               "name" : "Noud"
+               "y" : 2
             },
             {
-               "name" : "Prajith P",
+               "drilldown" : "Prajith P",
                "y" : 1,
-               "drilldown" : "Prajith P"
+               "name" : "Prajith P"
             },
             {
+               "name" : "Rage311",
                "drilldown" : "Rage311",
-               "y" : 2,
-               "name" : "Rage311"
+               "y" : 2
             },
             {
-               "y" : 4,
+               "name" : "Roger Bell West",
                "drilldown" : "Roger Bell West",
-               "name" : "Roger Bell West"
+               "y" : 4
             },
             {
-               "name" : "Steven Wilson",
+               "drilldown" : "Steven Wilson",
                "y" : 1,
-               "drilldown" : "Steven Wilson"
+               "name" : "Steven Wilson"
             },
             {
-               "y" : 3,
+               "name" : "Ulrich Rieke",
                "drilldown" : "Ulrich Rieke",
-               "name" : "Ulrich Rieke"
+               "y" : 3
             },
             {
+               "name" : "Yet Ebreo",
                "y" : 6,
-               "drilldown" : "Yet Ebreo",
-               "name" : "Yet Ebreo"
+               "drilldown" : "Yet Ebreo"
             }
-         ],
-         "name" : "Perl Weekly Challenge - 029"
+         ]
       }
    ],
    "xAxis" : {
       "type" : "category"
    },
-   "chart" : {
-      "type" : "column"
+   "legend" : {
+      "enabled" : 0
+   },
+   "yAxis" : {
+      "title" : {
+         "text" : "Total Solutions"
+      }
    }
 }
diff --git a/stats/pwc-language-breakdown-summary.json b/stats/pwc-language-breakdown-summary.json
index 79a5749a42..5a8baa147c 100644
--- a/stats/pwc-language-breakdown-summary.json
+++ b/stats/pwc-language-breakdown-summary.json
@@ -1,24 +1,15 @@
 {
    "xAxis" : {
+      "type" : "category",
       "labels" : {
          "style" : {
-            "fontSize" : "13px",
-            "fontFamily" : "Verdana, sans-serif"
+            "fontFamily" : "Verdana, sans-serif",
+            "fontSize" : "13px"
          }
-      },
-      "type" : "category"
-   },
-   "yAxis" : {
-      "min" : 0,
-      "title" : {
-         "text" : null
       }
    },
-   "legend" : {
-      "enabled" : "false"
-   },
    "subtitle" : {
-      "text" : "Last updated at 2019-10-13 15:15:17 GMT"
+      "text" : "Last updated at 2019-10-13 15:26:32 GMT"
    },
    "chart" : {
       "type" : "column"
@@ -26,38 +17,47 @@
    "title" : {
       "text" : "Perl Weekly Challenge Contributions - 2019"
    },
+   "tooltip" : {
+      "pointFormat" : "<b>{point.y:.0f}</b>"
+   },
+   "yAxis" : {
+      "title" : {
+         "text" : null
+      },
+      "min" : 0
+   },
+   "legend" : {
+      "enabled" : "false"
+   },
    "series" : [
       {
+         "dataLabels" : {
+            "format" : "{point.y:.0f}",
+            "color" : "#FFFFFF",
+            "enabled" : "true",
+            "style" : {
+               "fontFamily" : "Verdana, sans-serif",
+               "fontSize" : "13px"
+            },
+            "y" : 10,
+            "align" : "right",
+            "rotation" : -90
+         },
          "data" : [
             [
                "Blog",
-               308
+               309
             ],
             [
                "Perl 5",
-               1166
+               1167
             ],
             [
                "Perl 6",
-               705
+               707
             ]
          ],
-         "name" : "Contributions",
-         "dataLabels" : {
-            "rotation" : -90,
-            "color" : "#FFFFFF",
-            "enabled" : "true",
-            "format" : "{point.y:.0f}",
-            "align" : "right",
-            "style" : {
-               "fontSize" : "13px",
-               "fontFamily" : "Verdana, sans-serif"
-            },
-            "y" : 10
-         }
+         "name" : "Contributions"
       }
-   ],
-   "tooltip" : {
-      "pointFormat" : "<b>{point.y:.0f}</b>"
-   }
+   ]
 }
diff --git a/stats/pwc-language-breakdown.json b/stats/pwc-language-breakdown.json
index f40bacaad8..7cd53ebe72 100644
--- a/stats/pwc-language-breakdown.json
+++ b/stats/pwc-language-breakdown.json
@@ -1,17 +1,13 @@
 {
    "subtitle" : {
-      "text" : "Click the columns to drilldown the language breakdown. Last updated at 2019-10-13 15:15:17 GMT"
+      "text" : "Click the columns to drilldown the language breakdown. Last updated at 2019-10-13 15:26:32 GMT"
    },
-   "chart" : {
-      "type" : "column"
-   },
-   "title" : {
-      "text" : "Perl Weekly Challenge Language"
+   "xAxis" : {
+      "type" : "category"
    },
    "drilldown" : {
       "series" : [
          {
-            "name" : "001",
             "id" : "001",
             "data" : [
                [
@@ -26,7 +22,8 @@
                   "Blog",
                   11
                ]
-            ]
+            ],
+            "name" : "001"
          },
          {
             "name" : "002",
@@ -47,7 +44,7 @@
             "id" : "002"
          },
          {
-            "name" : "003",
+            "id" : "003",
             "data" : [
                [
                   "Perl 5",
@@ -62,9 +59,10 @@
                   8
                ]
             ],
-            "id" : "003"
+            "name" : "003"
          },
          {
+            "id" : "004",
             "name" : "004",
             "data" : [
                [
@@ -79,11 +77,9 @@
                   "Blog",
                   9
                ]
-            ],
-            "id" : "004"
+            ]
          },
          {
-            "name" : "005",
             "data" : [
                [
                   "Perl 5",
@@ -98,6 +94,7 @@
                   11
                ]
             ],
+            "name" : "005",
             "id" : "005"
          },
          {
@@ -119,7 +116,6 @@
             "name" : "006"
          },
          {
-            "name" : "007",
             "data" : [
                [
                   "Perl 5",
@@ -134,11 +130,12 @@
                   9
                ]
             ],
+            "name" : "007",
             "id" : "007"
          },
          {
-            "name" : "008",
             "id" : "008",
+            "name" : "008",
             "data" : [
                [
                   "Perl 5",
@@ -155,7 +152,7 @@
             ]
          },
          {
-            "id" : "009",
+            "name" : "009",
             "data" : [
                [
                   "Perl 5",
@@ -170,7 +167,7 @@
                   13
                ]
             ],
-            "name" : "009"
+            "id" : "009"
          },
          {
             "id" : "010",
@@ -191,8 +188,8 @@
             "name" : "010"
          },
          {
-            "name" : "011",
             "id" : "011",
+            "name" : "011",
             "data" : [
                [
                   "Perl 5",
@@ -209,7 +206,7 @@
             ]
          },
          {
-            "name" : "012",
+            "id" : "012",
             "data" : [
                [
                   "Perl 5",
@@ -224,11 +221,11 @@
                   11
                ]
             ],
-            "id" : "012"
+            "name" : "012"
          },
          {
-            "name" : "013",
             "id" : "013",
+            "name" : "013",
             "data" : [
                [
                   "Perl 5",
@@ -245,8 +242,6 @@
             ]
          },
          {
-            "name" : "014",
-            "id" : "014",
             "data" : [
                [
                   "Perl 5",
@@ -260,11 +255,13 @@
                   "Blog",
                   14
                ]
-            ]
+            ],
+            "name" : "014",
+            "id" : "014"
          },
          {
-            "name" : "015",
             "id" : "015",
+            "name" : "015",
             "data" : [
                [
                   "Perl 5",
@@ -299,6 +296,7 @@
             "id" : "016"
          },
          {
+            "name" : "017",
             "data" : [
                [
                   "Perl 5",
@@ -313,11 +311,11 @@
                   12
                ]
             ],
-            "id" : "017",
-            "name" : "017"
+            "id" : "017"
          },
          {
             "id" : "018",
+            "name" : "018",
             "data" : [
                [
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@@ -404,7 +400,8 @@
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@@ -511,137 +509,158 @@
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+      "followPointer" : "true",
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