- Added solutions by Laurent Rosenfeld.

17 files changed, 978 insertions, 894 deletions

diff --git a/challenge-073/laurent-rosenfeld/blog.txt b/challenge-073/laurent-rosenfeld/blog.txt
new file mode 100644
index 0000000000..fc8cb55aff
--- /dev/null
+++ b/challenge-073/laurent-rosenfeld/blog.txt
@@ -0,0 +1 @@
+http://blogs.perl.org/users/laurent_r/2020/08/perl-weekly-challenge-73-min-sliding-window-and-smallest-neighbor.html
diff --git a/challenge-073/laurent-rosenfeld/perl/ch-1.pl b/challenge-073/laurent-rosenfeld/perl/ch-1.pl
new file mode 100644
index 0000000000..5a4fe31484
--- /dev/null
+++ b/challenge-073/laurent-rosenfeld/perl/ch-1.pl
@@ -0,0 +1,19 @@
+use strict;
+use warnings;
+use feature qw/say/;
+
+sub min {
+    my $min = shift;
+    for (@_) {
+        $min = $_ if $_ < $min;
+    }
+    $min;
+}
+
+my @a = (1, 5, 0, 2, 9, 3, 7, 6, 4, 8);
+my $s =  shift // 3;
+my @result;
+for my $i (0..@a - $s) {
+    push @result, min @a[$i..$i + $s - 1];
+}
+say "@result";
diff --git a/challenge-073/laurent-rosenfeld/perl/ch-2.pl b/challenge-073/laurent-rosenfeld/perl/ch-2.pl
new file mode 100644
index 0000000000..5d2671fb54
--- /dev/null
+++ b/challenge-073/laurent-rosenfeld/perl/ch-2.pl
@@ -0,0 +1,16 @@
+use strict;
+use warnings;
+use feature qw/say/;
+
+my @a = (7, 8, 3, 12, 10);
+my @result = (0);
+my $min = shift @a;
+for my $item (@a) {
+    if ($item < $min) {
+        push @result, 0;
+        $min = $item;
+    } else {
+        push @result, $min;
+    }
+}
+say "@result";
diff --git a/challenge-073/laurent-rosenfeld/raku/ch-1.raku b/challenge-073/laurent-rosenfeld/raku/ch-1.raku
new file mode 100644
index 0000000000..6765d28ce4
--- /dev/null
+++ b/challenge-073/laurent-rosenfeld/raku/ch-1.raku
@@ -0,0 +1,11 @@
+use v6;
+
+my @a = 1, 5, 0, 2, 9, 3, 7, 6, 4, 8;
+my $s =  @*ARGS[0] // 3;
+
+my @result = gather {
+    for 0..@a.elems - $s  -> $i {
+        take min @a[$i..^$i + $s];
+    }
+}
+say @result;
diff --git a/challenge-073/laurent-rosenfeld/raku/ch-2.raku b/challenge-073/laurent-rosenfeld/raku/ch-2.raku
new file mode 100644
index 0000000000..ed30f04909
--- /dev/null
+++ b/challenge-073/laurent-rosenfeld/raku/ch-2.raku
@@ -0,0 +1,14 @@
+use v6;
+
+my @a = 7, 8, 3, 12, 10;
+my @result = 0,;
+my $min = shift @a;
+for @a -> $item {
+    if $item < $min {
+        push @result, 0;
+        $min = $item;
+    } else {
+        push @result, $min;
+    }
+}
+say @result;
diff --git a/stats/pwc-current.json b/stats/pwc-current.json
index 6eec7954c0..be48bd8494 100644
--- a/stats/pwc-current.json
+++ b/stats/pwc-current.json
@@ -1,60 +1,53 @@
 {
-   "title" : {
-      "text" : "Perl Weekly Challenge - 073"
-   },
-   "yAxis" : {
-      "title" : {
-         "text" : "Total Solutions"
-      }
-   },
-   "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/>"
-   },
-   "legend" : {
-      "enabled" : 0
+   "subtitle" : {
+      "text" : "[Champions: 16] Last updated at 2020-08-13 00:27:19 GMT"
    },
    "chart" : {
       "type" : "column"
    },
    "series" : [
       {
+         "colorByPoint" : 1,
          "data" : [
             {
-               "drilldown" : "Andrew Shitov",
                "name" : "Andrew Shitov",
-               "y" : 3
+               "y" : 3,
+               "drilldown" : "Andrew Shitov"
             },
             {
-               "y" : 2,
+               "drilldown" : "Ben Davies",
                "name" : "Ben Davies",
-               "drilldown" : "Ben Davies"
+               "y" : 2
             },
             {
-               "y" : 2,
+               "drilldown" : "Dave Jacoby",
                "name" : "Dave Jacoby",
-               "drilldown" : "Dave Jacoby"
+               "y" : 2
             },
             {
                "name" : "E. Choroba",
-               "drilldown" : "E. Choroba",
-               "y" : 2
+               "y" : 2,
+               "drilldown" : "E. Choroba"
             },
             {
-               "drilldown" : "Jason Messer",
+               "y" : 2,
                "name" : "Jason Messer",
-               "y" : 2
+               "drilldown" : "Jason Messer"
             },
             {
-               "drilldown" : "Javier Luque",
                "name" : "Javier Luque",
-               "y" : 5
+               "y" : 5,
+               "drilldown" : "Javier Luque"
             },
             {
-               "drilldown" : "Jorg Sommrey",
+               "y" : 2,
                "name" : "Jorg Sommrey",
-               "y" : 2
+               "drilldown" : "Jorg Sommrey"
+            },
+            {
+               "drilldown" : "Laurent Rosenfeld",
+               "name" : "Laurent Rosenfeld",
+               "y" : 5
             },
             {
                "drilldown" : "Mark Anderson",
@@ -67,44 +60,52 @@
                "drilldown" : "Markus Holzer"
             },
             {
-               "drilldown" : "Mohammad S Anwar",
+               "y" : 4,
                "name" : "Mohammad S Anwar",
-               "y" : 4
+               "drilldown" : "Mohammad S Anwar"
             },
             {
-               "name" : "Pavel Kuptsov",
                "drilldown" : "Pavel Kuptsov",
-               "y" : 2
+               "y" : 2,
+               "name" : "Pavel Kuptsov"
             },
             {
                "drilldown" : "Roger Bell_West",
-               "name" : "Roger Bell_West",
-               "y" : 4
+               "y" : 4,
+               "name" : "Roger Bell_West"
             },
             {
-               "drilldown" : "Shawn Wagner",
                "name" : "Shawn Wagner",
-               "y" : 2
+               "y" : 2,
+               "drilldown" : "Shawn Wagner"
             },
             {
-               "name" : "Simon Proctor",
                "drilldown" : "Simon Proctor",
+               "name" : "Simon Proctor",
                "y" : 2
             },
             {
-               "drilldown" : "Wanderdoc",
+               "y" : 2,
                "name" : "Wanderdoc",
-               "y" : 2
+               "drilldown" : "Wanderdoc"
             }
          ],
-         "name" : "Perl Weekly Challenge - 073",
-         "colorByPoint" : 1
+         "name" : "Perl Weekly Challenge - 073"
       }
    ],
+   "xAxis" : {
+      "type" : "category"
+   },
+   "legend" : {
+      "enabled" : 0
+   },
+   "title" : {
+      "text" : "Perl Weekly Challenge - 073"
+   },
    "drilldown" : {
       "series" : [
          {
-            "name" : "Andrew Shitov",
+            "id" : "Andrew Shitov",
             "data" : [
                [
                   "Raku",
@@ -115,7 +116,7 @@
                   1
                ]
             ],
-            "id" : "Andrew Shitov"
+            "name" : "Andrew Shitov"
          },
          {
             "data" : [
@@ -124,17 +125,17 @@
                   2
                ]
             ],
-            "id" : "Ben Davies",
-            "name" : "Ben Davies"
+            "name" : "Ben Davies",
+            "id" : "Ben Davies"
          },
          {
+            "id" : "Dave Jacoby",
             "data" : [
                [
                   "Perl",
                   2
                ]
             ],
-            "id" : "Dave Jacoby",
             "name" : "Dave Jacoby"
          },
          {
@@ -148,14 +149,14 @@
             "name" : "E. Choroba"
          },
          {
-            "id" : "Jason Messer",
             "data" : [
                [
                   "Raku",
                   2
                ]
             ],
-            "name" : "Jason Messer"
+            "name" : "Jason Messer",
+            "id" : "Jason Messer"
          },
          {
             "data" : [
@@ -172,40 +173,59 @@
                   1
                ]
             ],
-            "id" : "Javier Luque",
-            "name" : "Javier Luque"
+            "name" : "Javier Luque",
+            "id" : "Javier Luque"
          },
          {
-            "name" : "Jorg Sommrey",
             "id" : "Jorg Sommrey",
             "data" : [
                [
                   "Perl",
                   2
                ]
-            ]
+            ],
+            "name" : "Jorg Sommrey"
          },
          {
-            "name" : "Mark Anderson",
             "data" : [
                [
+                  "Perl",
+                  2
+               ],
+               [
                   "Raku",
                   2
+               ],
+               [
+                  "Blog",
+                  1
                ]
             ],
-            "id" : "Mark Anderson"
+            "name" : "Laurent Rosenfeld",
+            "id" : "Laurent Rosenfeld"
          },
          {
+            "name" : "Mark Anderson",
             "data" : [
                [
                   "Raku",
                   2
                ]
             ],
+            "id" : "Mark Anderson"
+         },
+         {
             "id" : "Markus Holzer",
-            "name" : "Markus Holzer"
+            "name" : "Markus Holzer",
+            "data" : [
+               [
+                  "Raku",
+                  2
+               ]
+            ]
          },
          {
+            "id" : "Mohammad S Anwar",
             "data" : [
                [
                   "Perl",
@@ -216,7 +236,6 @@
                   2
                ]
             ],
-            "id" : "Mohammad S Anwar",
             "name" : "Mohammad S Anwar"
          },
          {
@@ -230,7 +249,7 @@
             "id" : "Pavel Kuptsov"
          },
          {
-            "id" : "Roger Bell_West",
+            "name" : "Roger Bell_West",
             "data" : [
                [
                   "Perl",
@@ -241,53 +260,57 @@
                   2
                ]
             ],
-            "name" : "Roger Bell_West"
+            "id" : "Roger Bell_West"
          },
          {
+            "id" : "Shawn Wagner",
+            "name" : "Shawn Wagner",
             "data" : [
                [
                   "Perl",
                   2
                ]
-            ],
-            "id" : "Shawn Wagner",
-            "name" : "Shawn Wagner"
+            ]
          },
          {
             "name" : "Simon Proctor",
-            "id" : "Simon Proctor",
             "data" : [
                [
                   "Raku",
                   2
                ]
-            ]
+            ],
+            "id" : "Simon Proctor"
          },
          {
+            "id" : "Wanderdoc",
             "name" : "Wanderdoc",
             "data" : [
                [
                   "Perl",
                   2
                ]
-            ],
-            "id" : "Wanderdoc"
+            ]
          }
       ]
    },
-   "subtitle" : {
-      "text" : "[Champions: 15] Last updated at 2020-08-12 19:21:45 GMT"
+   "yAxis" : {
+      "title" : {
+         "text" : "Total Solutions"
+      }
    },
    "plotOptions" : {
       "series" : {
          "borderWidth" : 0,
          "dataLabels" : {
-            "format" : "{point.y}",
-            "enabled" : 1
+            "enabled" : 1,
+            "format" : "{point.y}"
          }
       }
    },
-   "xAxis" : {
-      "type" : "category"
+   "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/>"
    }
 }
diff --git a/stats/pwc-language-breakdown-summary.json b/stats/pwc-language-breakdown-summary.json
index 585d883b01..10a0fa8e17 100644
--- a/stats/pwc-language-breakdown-summary.json
+++ b/stats/pwc-language-breakdown-summary.json
@@ -1,63 +1,63 @@
 {
+   "title" : {
+      "text" : "Perl Weekly Challenge Contributions [2019 - 2020]"
+   },
+   "tooltip" : {
+      "pointFormat" : "<b>{point.y:.0f}</b>"
+   },
+   "yAxis" : {
+      "min" : 0,
+      "title" : {
+         "text" : null
+      }
+   },
+   "chart" : {
+      "type" : "column"
+   },
+   "subtitle" : {
+      "text" : "Last updated at 2020-08-13 00:27:19 GMT"
+   },
+   "legend" : {
+      "enabled" : "false"
+   },
    "xAxis" : {
+      "type" : "category",
       "labels" : {
          "style" : {
             "fontFamily" : "Verdana, sans-serif",
             "fontSize" : "13px"
          }
-      },
-      "type" : "category"
-   },
-   "subtitle" : {
-      "text" : "Last updated at 2020-08-12 19:21:45 GMT"
+      }
    },
    "series" : [
       {
          "dataLabels" : {
             "rotation" : -90,
-            "align" : "right",
-            "color" : "#FFFFFF",
             "style" : {
                "fontSize" : "13px",
                "fontFamily" : "Verdana, sans-serif"
             },
-            "format" : "{point.y:.0f}",
             "enabled" : "true",
-            "y" : 10
+            "y" : 10,
+            "align" : "right",
+            "color" : "#FFFFFF",
+            "format" : "{point.y:.0f}"
          },
+         "name" : "Contributions",
          "data" : [
             [
                "Blog",
-               874
+               875
             ],
             [
                "Perl",
-               3007
+               3009
             ],
             [
                "Raku",
-               1959
+               1961
             ]
-         ],
-         "name" : "Contributions"
-      }
-   ],
-   "chart" : {
-      "type" : "column"
-   },
-   "legend" : {
-      "enabled" : "false"
-   },
-   "tooltip" : {
-      "pointFormat" : "<b>{point.y:.0f}</b>"
-   },
-   "yAxis" : {
-      "min" : 0,
-      "title" : {
-         "text" : null
+         ]
       }
-   },
-   "title" : {
-      "text" : "Perl Weekly Challenge Contributions [2019 - 2020]"
-   }
+   ]
 }
diff --git a/stats/pwc-language-breakdown.json b/stats/pwc-language-breakdown.json
index a7d898289c..7bd1d758b8 100644
--- a/stats/pwc-language-breakdown.json
+++ b/stats/pwc-language-breakdown.json
@@ -1,39 +1,7 @@
 {
-   "chart" : {
-      "type" : "column"
-   },
-   "legend" : {
-      "enabled" : "false"
-   },
-   "yAxis" : {
-      "title" : {
-         "text" : "Total Solutions"
-      }
-   },
-   "tooltip" : {
-      "headerFormat" : "<span style=\"font-size:11px\"></span>",
-      "followPointer" : "true",
-      "pointFormat" : "<span style=\"color:{point.color}\">Challenge {point.name}</span>: <b>{point.y:f}</b><br/>"
-   },
-   "title" : {
-      "text" : "Perl Weekly Challenge Language"
-   },
-   "plotOptions" : {
-      "series" : {
-         "dataLabels" : {
-            "enabled" : 1,
-            "format" : "{point.y}"
-         },
-         "borderWidth" : 0
-      }
-   },
-   "xAxis" : {
-      "type" : "category"
-   },
    "drilldown" : {
       "series" : [
          {
-            "id" : "001",
             "data" : [
                [
                   "Perl",
@@ -48,7 +16,8 @@
                   11
                ]
             ],
-            "name" : "001"
+            "name" : "001",
+            "id" : "001"
          },
          {
             "name" : "002",
@@ -69,7 +38,7 @@
             "id" : "002"
          },
          {
-            "name" : "003",
+            "id" : "003",
             "data" : [
                [
                   "Perl",
@@ -84,10 +53,10 @@
                   9
                ]
             ],
-            "id" : "003"
+            "name" : "003"
          },
          {
-            "id" : "004",
+            "name" : "004",
             "data" : [
                [
                   "Perl",
@@ -102,11 +71,10 @@
                   10
                ]
             ],
-            "name" : "004"
+            "id" : "004"
          },
          {
             "name" : "005",
-            "id" : "005",
             "data" : [
                [
                   "Perl",
@@ -120,11 +88,11 @@
                   "Blog",
                   12
                ]
-            ]
+            ],
+            "id" : "005"
          },
          {
             "name" : "006",
-            "id" : "006",
             "data" : [
                [
                   "Perl",
@@ -138,11 +106,12 @@
                   "Blog",
                   7
                ]
-            ]
+            ],
+            "id" : "006"
          },
          {
-            "name" : "007",
             "id" : "007",
+            "name" : "007",
             "data" : [
                [
                   "Perl",
@@ -160,7 +129,6 @@
          },
          {
             "name" : "008",
-            "id" : "008",
             "data" : [
                [
                   "Perl",
@@ -174,10 +142,11 @@
                   "Blog",
                   12
                ]
-            ]
+            ],
+            "id" : "008"
          },
          {
-            "id" : "009",
+            "name" : "009",
             "data" : [
                [
                   "Perl",
@@ -192,7 +161,7 @@
                   13
                ]
             ],
-            "name" : "009"
+            "id" : "009"
          },
          {
             "data" : [
@@ -209,11 +178,10 @@
                   11
                ]
             ],
-            "id" : "010",
-            "name" : "010"
+            "name" : "010",
+            "id" : "010"
          },
          {
-            "name" : "011",
             "data" : [
                [
                   "Perl",
@@ -228,10 +196,10 @@
                   10
                ]
             ],
+            "name" : "011",
             "id" : "011"
          },
          {
-            "name" : "012",
             "data" : [
                [
                   "Perl",
@@ -246,6 +214,7 @@
                   11
                ]
             ],
+            "name" : "012",
             "id" : "012"
          },
          {
@@ -267,7 +236,6 @@
             "id" : "013"
          },
          {
-            "name" : "014",
             "id" : "014",
             "data" : [
                [
@@ -282,11 +250,11 @@
                   "Blog",
                   15
                ]
-            ]
+            ],
+            "name" : "014"
          },
          {
             "name" : "015",
-            "id" : "015",
             "data" : [
                [
                   "Perl",
@@ -300,9 +268,11 @@
                   "Blog",
                   15
                ]
-            ]
+            ],
+            "id" : "015"
          },
          {
+            "id" : "016",
             "data" : [
                [
                   "Perl",
@@ -317,7 +287,6 @@
                   12
                ]
             ],
-            "id" : "016",
             "name" : "016"
          },
          {
@@ -339,6 +308,7 @@
             "id" : "017"
          },
          {
+            "id" : "018",
             "name" : "018",
             "data" : [
                [
@@ -353,8 +323,7 @@
                   "Blog",
                   14
                ]
-            ],
-            "id" : "018"
+            ]
          },
          {
             "name" : "019",
@@ -376,7 +345,6 @@
          },
          {
             "name" : "020",
-            "id" : "020",
             "data" : [
                [
                   "Perl",
@@ -390,11 +358,11 @@
                   "Blog",
                   13
                ]
-            ]
+            ],
+            "id" : "020"
          },
          {
             "name" : "021",
-            "id" : "021",
             "data" : [
                [
                   "Perl",
@@ -408,9 +376,12 @@
                   "Blog",
                   10
                ]
-            ]
+            ],
+            "id" : "021"
          },
          {
+            "id" : "022",
+            "name" : "022",
             "data" : [
                [
                   "Perl",
@@ -424,13 +395,9 @@
                   "Blog",
                   10
                ]
-            ],
-            "id" : "022",
-            "name" : "022"
+            ]
          },
          {
-            "name" : "023",
-            "id" : "023",
             "data" : [
                [
                   "Perl",
@@ -444,10 +411,12 @@
                   "Blog",
                   12
                ]
-            ]
+            ],
+            "name" : "023",
+            "id" : "023"
          },
          {
-            "id" : "024",
+            "name" : "024",
             "data" : [
                [
                   "Perl",
@@ -462,10 +431,10 @@
                   11
                ]
             ],
-            "name" : "024"
+            "id" : "024"
          },
          {
-            "id" : "025",
+            "name" : "025",
             "data" : [
                [
                   "Perl",
@@ -480,11 +449,10 @@
                   12
                ]
             ],
-            "name" : "025"
+            "id" : "025"
          },
          {
             "name" : "026",
-            "id" : "026",
             "data" : [
                [
                   "Perl",
@@ -498,9 +466,11 @@
                   "Blog",
                   10
                ]
-            ]
+            ],
+            "id" : "026"
          },
          {
+            "id" : "027",
             "data" : [
                [
                   "Perl",
@@ -515,10 +485,10 @@
                   9
                ]
             ],
-            "id" : "027",
             "name" : "027"
          },
          {
+            "name" : "028",
             "data" : [
                [
                   "Perl",
@@ -533,11 +503,10 @@
                   9
                ]
             ],
-            "id" : "028",
-            "name" : "028"
+            "id" : "028"
          },
          {
-            "name" : "029",
+            "id" : "029",
             "data" : [
                [
                   "Perl",
@@ -552,10 +521,11 @@
                   12
                ]
             ],
-            "id" : "029"
+            "name" : "029"
          },
          {
             "id" : "030",
+            "name" : "030",
             "data" : [
                [
                   "Perl",
@@ -569,11 +539,9 @@
                   "Blog",
                   10
                ]
-            ],
-            "name" : "030"
+            ]
          },
          {
-            "name" : "031",
             "id" : "031",
             "data" : [
                [
@@ -588,11 +556,12 @@
                   "Blog",
                   9
                ]
-            ]
+            ],
+            "name" : "031"
          },
          {
-            "name" : "032",
             "id" : "032",
+            "name" : "032",
             "data" : [
                [
                   "Perl",
@@ -609,8 +578,8 @@
             ]
          },
          {
-            "name" : "033",
             "id" : "033",
+            "name" : "033",
             "data" : [
                [
                   "Perl",
@@ -641,8 +610,8 @@
                   11
                ]
             ],
-            "id" : "034",
-            "name" : "034"
+            "name" : "034",
+            "id" : "034"
          },
          {
             "data" : [
@@ -659,11 +628,10 @@
                   9
                ]
             ],
-            "id" : "035",
-            "name" : "035"
+            "name" : "035",
+            "id" : "035"
          },
          {
-            "name" : "036",
             "id" : "036",
             "data" : [
                [
@@ -678,11 +646,11 @@
                   "Blog",
                   11
                ]
-            ]
+            ],
+            "name" : "036"
          },
          {
             "name" : "037",
-            "id" : "037",
             "data" : [
                [
                   "Perl",
@@ -696,11 +664,11 @@
                   "Blog",
                   9
                ]
-            ]
+            ],
+            "id" : "037"
          },
          {
             "name" : "038",
-            "id" : "038",
             "data" : [
                [
                   "Perl",
@@ -714,10 +682,11 @@
                   "Blog",
                   12
                ]
-            ]
+            ],
+            "id" : "038"
          },
          {
-            "id" : "039",
+            "name" : "039",
             "data" : [
                [
                   "Perl",
@@ -732,11 +701,11 @@
                   12
                ]
             ],
-            "name" : "039"
+            "id" : "039"
          },
          {
-            "name" : "040",
             "id" : "040",
+            "name" : "040",
             "data" : [
                [
                   "Perl",
@@ -753,7 +722,6 @@
             ]
          },
          {
-            "id" : "041",
             "data" : [
                [
                   "Perl",
@@ -768,9 +736,11 @@
                   9
                ]
             ],
-            "name" : "041"
+            "name" : "041",
+            "id" : "041"
          },
          {
+            "id" : "042",
             "name" : "042",
             "data" : [
                [
@@ -785,11 +755,9 @@
                   "Blog",
                   11
                ]
-            ],
-            "id" : "042"
+            ]
          },
          {
-            "name" : "043",
             "data" : [
                [
                   "Perl",
@@ -804,10 +772,10 @@
                   11
                ]
             ],
+            "name" : "043",
             "id" : "043"
          },
          {
-            "name" : "044",
             "data" : [
                [
                   "Perl",
@@ -822,10 +790,10 @@
                   11
                ]
             ],
+