Merge remote-tracking branch 'upstream/master' into ch-076

19 files changed, 1272 insertions, 1139 deletions

diff --git a/challenge-076/mohammad-anwar/perl/ch-2.pl b/challenge-076/mohammad-anwar/perl/ch-2.pl
index 1133a7eddb..ef5ccfa344 100755
--- a/challenge-076/mohammad-anwar/perl/ch-2.pl
+++ b/challenge-076/mohammad-anwar/perl/ch-2.pl
@@ -144,13 +144,11 @@ sub horizontals {
     my $matrix = {};
     foreach my $line (@$data) {
         chomp $line;
-        $line =~ s/\s+/ /g;
+        $line =~ s/\s+//g;
 
         my $l = "";
         my @l = ();
-        foreach my $char (split /\s/,$line) {
-            $char =~ s/^\s+//g;
-            $char =~ s/\s+$//g;
+        foreach my $char (split //,$line) {
             push @l, $char;
             $l .= $char;
         }
diff --git a/challenge-076/mohammad-anwar/perl/search-grid.txt b/challenge-076/mohammad-anwar/perl/grid-with-space.txt
index 31cf2e0fd8..31cf2e0fd8 100644
--- a/challenge-076/mohammad-anwar/perl/search-grid.txt
+++ b/challenge-076/mohammad-anwar/perl/grid-with-space.txt
diff --git a/challenge-076/mohammad-anwar/perl/grid-without-space.txt b/challenge-076/mohammad-anwar/perl/grid-without-space.txt
new file mode 100644
index 0000000000..b010521de2
--- /dev/null
+++ b/challenge-076/mohammad-anwar/perl/grid-without-space.txt
@@ -0,0 +1,19 @@
+BIDEMIATSUCCORST
+LDEGGIWQHODEEHDP
+USEIRUBUTEASLAGU
+NGNIZILAICOSCNUD
+TGMIDSTSARAREIFG
+SRENMDCHASIVEELI
+SCSHAEUEBROADMTE
+HWOVLPEDDLAIULSS
+RYONLASFCSTAOGOT
+IGUSSRRUGOVARYOC
+NRGPATNANGILAMOO
+EIHACEIVIRUSESED
+SETSUDTTGARLICNH
+HVRMXLWIUMSNSOTB
+AEAOFILCHTODCAEU
+ZSCDFECAAIIRLNRF
+ARIIANYUTOOOUTPF
+RSECISNABOSCNERA
+DRSMPCUUNELTESIL
diff --git a/challenge-076/neil-bowers/blog.txt b/challenge-076/neil-bowers/blog.txt
new file mode 100644
index 0000000000..7efb982ec0
--- /dev/null
+++ b/challenge-076/neil-bowers/blog.txt
@@ -0,0 +1 @@
+http://neilb.org/2020/09/03/wordsearch.html
diff --git a/challenge-076/neil-bowers/perl/ch-2.pl b/challenge-076/neil-bowers/perl/ch-2.pl
new file mode 100644
index 0000000000..8f5d5338a6
--- /dev/null
+++ b/challenge-076/neil-bowers/perl/ch-2.pl
@@ -0,0 +1,53 @@
+#!/usr/local/bin/perl
+#
+# solve-wordsearch - search for words (from a word list) in a wordsearch grid
+#
+use strict;
+use warnings;
+use v5.20;
+use feature       qw/ signatures /;
+no warnings       qw/ experimental::signatures /;
+use File::Slurper qw/ read_lines /;
+
+die "usage: $0 <grid-file> <word-list>\n" unless @ARGV == 2;
+
+my @grid      = map { [split('',lc($_))] } read_lines($ARGV[0]);
+my %is_a_word = map { lc($_) => 1        } read_lines($ARGV[1]);
+my $num_cols  = int(@{ $grid[0] });
+my $num_rows  = int(@grid);
+my %found;
+
+scan_grid_for_words();
+print_words();
+
+sub scan_grid_for_words {
+    for (my $row = 0; $row < $num_rows; ++$row) {
+        for (my $col = 0; $col < $num_cols; ++$col) {
+            foreach my $row_delta (-1, 0, 1) {
+                foreach my $col_delta (-1, 0, 1) {
+                    next if $row_delta == 0 && $col_delta == 0;
+                    scan_line_for_words($row, $col, $row_delta, $col_delta);
+                }
+            }
+        }
+    }
+}
+
+sub scan_line_for_words ($row, $col, $row_delta, $col_delta) {
+    my $word = "";
+
+    while (on_grid($row,$col)) {
+        $word .= $grid[$row][$col];
+        $found{$word}++ if $is_a_word{$word};
+        $row += $row_delta;
+        $col += $col_delta;
+    }
+}
+
+sub on_grid ($row, $col) {
+    return ($row < $num_rows && $row >= 0 && $col >= 0 && $col < $num_cols);
+}
+
+sub print_words {
+    print "$_\n" for sort keys %found;
+}
diff --git a/challenge-076/neil-bowers/perl/pwc.txt b/challenge-076/neil-bowers/perl/pwc.txt
new file mode 100644
index 0000000000..b010521de2
--- /dev/null
+++ b/challenge-076/neil-bowers/perl/pwc.txt
@@ -0,0 +1,19 @@
+BIDEMIATSUCCORST
+LDEGGIWQHODEEHDP
+USEIRUBUTEASLAGU
+NGNIZILAICOSCNUD
+TGMIDSTSARAREIFG
+SRENMDCHASIVEELI
+SCSHAEUEBROADMTE
+HWOVLPEDDLAIULSS
+RYONLASFCSTAOGOT
+IGUSSRRUGOVARYOC
+NRGPATNANGILAMOO
+EIHACEIVIRUSESED
+SETSUDTTGARLICNH
+HVRMXLWIUMSNSOTB
+AEAOFILCHTODCAEU
+ZSCDFECAAIIRLNRF
+ARIIANYUTOOOUTPF
+RSECISNABOSCNERA
+DRSMPCUUNELTESIL
diff --git a/challenge-076/roger-bell-west/blog.txt b/challenge-076/roger-bell-west/blog.txt
new file mode 100644
index 0000000000..da23bcd44b
--- /dev/null
+++ b/challenge-076/roger-bell-west/blog.txt
@@ -0,0 +1 @@
+https://blog.firedrake.org/archive/2020/09/Perl_Weekly_Challenge_76__prime_sum_and_word_search.html
diff --git a/stats/pwc-current.json b/stats/pwc-current.json
index feb4f74452..ea3cde34c8 100644
--- a/stats/pwc-current.json
+++ b/stats/pwc-current.json
@@ -1,4 +1,7 @@
 {
+   "subtitle" : {
+      "text" : "[Champions: 12] Last updated at 2020-09-03 12:51:37 GMT"
+   },
    "yAxis" : {
       "title" : {
          "text" : "Total Solutions"
@@ -6,37 +9,44 @@
    },
    "plotOptions" : {
       "series" : {
-         "borderWidth" : 0,
          "dataLabels" : {
-            "format" : "{point.y}",
-            "enabled" : 1
-         }
+            "enabled" : 1,
+            "format" : "{point.y}"
+         },
+         "borderWidth" : 0
       }
    },
    "chart" : {
       "type" : "column"
    },
-   "subtitle" : {
-      "text" : "[Champions: 10] Last updated at 2020-09-02 15:13:22 GMT"
-   },
    "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/>"
    },
+   "legend" : {
+      "enabled" : 0
+   },
+   "title" : {
+      "text" : "Perl Weekly Challenge - 076"
+   },
+   "xAxis" : {
+      "type" : "category"
+   },
    "drilldown" : {
       "series" : [
          {
-            "id" : "Alexander Pankoff",
             "name" : "Alexander Pankoff",
             "data" : [
                [
                   "Perl",
                   2
                ]
-            ]
+            ],
+            "id" : "Alexander Pankoff"
          },
          {
+            "id" : "Andinus",
             "data" : [
                [
                   "Perl",
@@ -47,7 +57,6 @@
                   1
                ]
             ],
-            "id" : "Andinus",
             "name" : "Andinus"
          },
          {
@@ -65,13 +74,13 @@
             ]
          },
          {
+            "name" : "Mark Anderson",
             "data" : [
                [
                   "Raku",
                   2
                ]
             ],
-            "name" : "Mark Anderson",
             "id" : "Mark Anderson"
          },
          {
@@ -95,58 +104,89 @@
                   2
                ]
             ],
-            "id" : "Roger Bell_West",
-            "name" : "Roger Bell_West"
+            "name" : "Myoungjin Jeon",
+            "id" : "Myoungjin Jeon"
          },
          {
-            "name" : "Simon Green",
-            "id" : "Simon Green",
             "data" : [
                [
                   "Perl",
-                  2
+                  1
                ],
                [
                   "Blog",
                   1
                ]
-            ]
+            ],
+            "name" : "Neil Bowers",
+            "id" : "Neil Bowers"
          },
          {
             "data" : [
                [
+                  "Perl",
+                  2
+               ],
+               [
                   "Raku",
                   2
+               ],
+               [
+                  "Blog",
+                  1
                ]
             ],
-            "id" : "Simon Proctor",
-            "name" : "Simon Proctor"
+            "name" : "Roger Bell_West",
+            "id" : "Roger Bell_West"
          },
          {
+            "id" : "Simon Green",
             "data" : [
                [
                   "Perl",
+                  2
+               ],
+               [
+                  "Blog",
                   1
                ]
             ],
-            "id" : "Ulrich Rieke",
-            "name" : "Ulrich Rieke"
+            "name" : "Simon Green"
          },
          {
+            "id" : "Simon Proctor",
+            "name" : "Simon Proctor",
+            "data" : [
+               [
+                  "Raku",
+                  2
+               ]
+            ]
+         },
+         {
+            "id" : "Ulrich Rieke",
             "data" : [
                [
                   "Perl",
                   1
                ]
             ],
+            "name" : "Ulrich Rieke"
+         },
+         {
             "id" : "Yet Ebreo",
-            "name" : "Yet Ebreo"
+            "name" : "Yet Ebreo",
+            "data" : [
+               [
+                  "Perl",
+                  1
+               ]
+            ]
          }
       ]
    },
    "series" : [
       {
-         "colorByPoint" : 1,
          "name" : "Perl Weekly Challenge - 076",
          "data" : [
             {
@@ -155,19 +195,19 @@
                "y" : 2
             },
             {
-               "drilldown" : "Andinus",
+               "name" : "Andinus",
                "y" : 2,
-               "name" : "Andinus"
+               "drilldown" : "Andinus"
             },
             {
-               "y" : 4,
+               "name" : "Luca Ferrari",
                "drilldown" : "Luca Ferrari",
-               "name" : "Luca Ferrari"
+               "y" : 4
             },
             {
+               "name" : "Mark Anderson",
                "y" : 2,
-               "drilldown" : "Mark Anderson",
-               "name" : "Mark Anderson"
+               "drilldown" : "Mark Anderson"
             },
             {
                "y" : 1,
@@ -175,13 +215,23 @@
                "name" : "Mohammad S Anwar"
             },
             {
-               "name" : "Roger Bell_West",
+               "name" : "Myoungjin Jeon",
                "y" : 4,
-               "drilldown" : "Roger Bell_West"
+               "drilldown" : "Myoungjin Jeon"
+            },
+            {
+               "drilldown" : "Neil Bowers",
+               "y" : 2,
+               "name" : "Neil Bowers"
+            },
+            {
+               "name" : "Roger Bell_West",
+               "drilldown" : "Roger Bell_West",
+               "y" : 5
             },
             {
-               "y" : 3,
                "drilldown" : "Simon Green",
+               "y" : 3,
                "name" : "Simon Green"
             },
             {
@@ -190,25 +240,17 @@
                "drilldown" : "Simon Proctor"
             },
             {
+               "name" : "Ulrich Rieke",
                "drilldown" : "Ulrich Rieke",
-               "y" : 1,
-               "name" : "Ulrich Rieke"
+               "y" : 1
             },
             {
-               "name" : "Yet Ebreo",
                "drilldown" : "Yet Ebreo",
-               "y" : 1
+               "y" : 1,
+               "name" : "Yet Ebreo"
             }
-         ]
+         ],
+         "colorByPoint" : 1
       }
-   ],
-   "xAxis" : {
-      "type" : "category"
-   },
-   "title" : {
-      "text" : "Perl Weekly Challenge - 076"
-   },
-   "legend" : {
-      "enabled" : 0
-   }
+   ]
 }
diff --git a/stats/pwc-language-breakdown-summary.json b/stats/pwc-language-breakdown-summary.json
index 84bb24fd75..dc20fe0340 100644
--- a/stats/pwc-language-breakdown-summary.json
+++ b/stats/pwc-language-breakdown-summary.json
@@ -1,49 +1,49 @@
 {
-   "tooltip" : {
-      "pointFormat" : "<b>{point.y:.0f}</b>"
-   },
    "yAxis" : {
       "title" : {
          "text" : null
       },
       "min" : 0
    },
+   "subtitle" : {
+      "text" : "Last updated at 2020-09-03 12:51:37 GMT"
+   },
    "chart" : {
       "type" : "column"
    },
-   "subtitle" : {
-      "text" : "Last updated at 2020-09-02 15:13:22 GMT"
-   },
    "legend" : {
       "enabled" : "false"
    },
+   "tooltip" : {
+      "pointFormat" : "<b>{point.y:.0f}</b>"
+   },
    "series" : [
       {
-         "name" : "Contributions",
          "dataLabels" : {
-            "color" : "#FFFFFF",
-            "y" : 10,
-            "format" : "{point.y:.0f}",
             "align" : "right",
+            "format" : "{point.y:.0f}",
             "style" : {
-               "fontFamily" : "Verdana, sans-serif",
-               "fontSize" : "13px"
+               "fontSize" : "13px",
+               "fontFamily" : "Verdana, sans-serif"
             },
             "rotation" : -90,
-            "enabled" : "true"
+            "color" : "#FFFFFF",
+            "enabled" : "true",
+            "y" : 10
          },
+         "name" : "Contributions",
          "data" : [
             [
                "Blog",
-               940
+               942
             ],
             [
                "Perl",
-               3163
+               3166
             ],
             [
                "Raku",
-               2059
+               2061
             ]
          ]
       }
@@ -52,12 +52,12 @@
       "text" : "Perl Weekly Challenge Contributions [2019 - 2020]"
    },
    "xAxis" : {
+      "type" : "category",
       "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 c067b96dab..dde3926bee 100644
--- a/stats/pwc-language-breakdown.json
+++ b/stats/pwc-language-breakdown.json
@@ -1,11 +1,21 @@
 {
+   "tooltip" : {
+      "followPointer" : "true",
+      "headerFormat" : "<span style=\"font-size:11px\"></span>",
+      "pointFormat" : "<span style=\"color:{point.color}\">Challenge {point.name}</span>: <b>{point.y:f}</b><br/>"
+   },
    "legend" : {
       "enabled" : "false"
    },
+   "title" : {
+      "text" : "Perl Weekly Challenge Language"
+   },
+   "xAxis" : {
+      "type" : "category"
+   },
    "drilldown" : {
       "series" : [
          {
-            "name" : "001",
             "id" : "001",
             "data" : [
                [
@@ -20,7 +30,8 @@
                   "Blog",
                   11
                ]
-            ]
+            ],
+            "name" : "001"
          },
          {
             "id" : "002",
@@ -60,7 +71,6 @@
          },
          {
             "name" : "004",
-            "id" : "004",
             "data" : [
                [
                   "Perl",
@@ -74,9 +84,11 @@
                   "Blog",
                   10
                ]
-            ]
+            ],
+            "id" : "004"
          },
          {
+            "name" : "005",
             "data" : [
                [
                   "Perl",
@@ -91,8 +103,7 @@
                   12
                ]
             ],
-            "id" : "005",
-            "name" : "005"
+            "id" : "005"
          },
          {
             "data" : [
@@ -109,10 +120,12 @@
                   7
                ]
             ],
-            "id" : "006",
-            "name" : "006"
+            "name" : "006",
+            "id" : "006"
          },
          {
+            "id" : "007",
+            "name" : "007",
             "data" : [
                [
                   "Perl",
@@ -126,13 +139,11 @@
                   "Blog",
                   10
                ]
-            ],
-            "id" : "007",
-            "name" : "007"
+            ]
          },
          {
-            "name" : "008",
             "id" : "008",
+            "name" : "008",
             "data" : [
                [
                   "Perl",
@@ -149,6 +160,7 @@
             ]
          },
          {
+            "name" : "009",
             "data" : [
                [
                   "Perl",
@@ -163,11 +175,9 @@
                   13
                ]
             ],
-            "id" : "009",
-            "name" : "009"
+            "id" : "009"
          },
          {
-            "id" : "010",
             "name" : "010",
             "data" : [
                [
@@ -182,10 +192,10 @@
                   "Blog",
                   11
                ]
-            ]
+            ],
+            "id" : "010"
          },
          {
-            "id" : "011",
             "name" : "011",
             "data" : [
                [
@@ -200,7 +210,8 @@
                   "Blog",
                   10
                ]
-            ]
+            ],
+            "id" : "011"
          },
          {
             "data" : [
@@ -221,6 +232,7 @@
             "id" : "012"
          },
          {
+            "id" : "013",
             "data" : [
                [
                   "Perl",
@@ -235,10 +247,10 @@
                   13
                ]
             ],
-            "id" : "013",
             "name" : "013"
          },
          {
+            "name" : "014",
             "data" : [
                [
                   "Perl",
@@ -253,12 +265,9 @@
                   15
                ]
             ],
-            "name" : "014",
             "id" : "014"
          },
          {
-            "name" : "015",
-            "id" : "015",
             "data" : [
                [
                   "Perl",
@@ -272,11 +281,12 @@
                   "Blog",
                   15
                ]
-            ]
+            ],
+            "name" : "015",
+            "id" : "015"
          },
          {
             "name" : "016",
-            "id" : "016",
             "data" : [
                [
                   "Perl",
@@ -290,9 +300,11 @@
                   "Blog",
                   12
                ]
-            ]
+            ],
+            "id" : "016"
          },
          {
+            "id" : "017",
             "data" : [
                [
                   "Perl",
@@ -307,10 +319,10 @@
                   12
                ]
             ],
-            "name" : "017",
-            "id" : "017"
+            "name" : "017"
          },
          {
+            "name" : "018",
             "data" : [
                [
                   "Perl",
@@ -325,10 +337,10 @@
                   14
                ]
             ],
-            "name" : "018",
             "id" : "018"
          },
          {
+            "id" : "019",
             "data" : [
                [
                   "Perl",
@@ -343,10 +355,10 @@
                   13
                ]
             ],
-            "id" : "019",
             "name" : "019"
          },
          {
+            "name" : "020",
             "data" : [
                [
                   "Perl",
@@ -361,10 +373,10 @@
                   13
                ]
             ],
-            "name" : "020",
             "id" : "020"
          },
          {
+            "name" : "021",
             "data" : [
                [
                   "Perl",
@@ -379,10 +391,10 @@
                   10
                ]
             ],
-            "id" : "021",
-            "name" : "021"
+            "id" : "021"
          },
          {
+            "name" : "022",
             "data" : [
                [
                   "Perl",
@@ -397,12 +409,10 @@
                   10
                ]
             ],
-            "id" : "022",
-            "name" : "022"
+            "id" : "022"
          },
          {
             "id" : "023",
-            "name" : "023",
             "data" : [
                [
                   "Perl",
@@ -416,11 +426,12 @@
                   "Blog",
                   12
                ]
-            ]
+            ],
+            "name" : "023"
          },
          {
-            "name" : "024",
             "id" : "024",
+            "name" : "024",
             "data" : [
                [
                   "Perl",
@@ -451,12 +462,12 @@
                   12
                ]
             ],
-            "id" : "025",
-            "name" : "025"
+            "name" : "025",
+            "id" : "025"
          },
          {
-            "name" : "026",
             "id" : "026",
+            "name" : "026",
             "data" : [
                [
                   "Perl",
@@ -473,6 +484,7 @@
             ]
          },
          {
+            "name" : "027",
             "data" : [
                [
                   "Perl",
@@ -487,11 +499,9 @@
                   9
                ]
             ],
-            "id" : "027",
-            "name" : "027"
+            "id" : "027"
          },
          {
-            "id" : "028",
             "name" : "028",
             "data" : [
                [
@@ -506,10 +516,10 @@
                   "Blog",
                   9
                ]
-            ]
+            ],
+            "id" : "028"
          },
          {
-            "id" : "029",
             "name" : "029",
             "data" : [
                [
@@ -524,7 +534,8 @@
                   "Blog",
                   12
                ]
-            ]
+            ],
+            "id" : "029"
          },
          {
             "id" : "030",
@@ -545,6 +556,7 @@
             ]
          },
          {
+            "name" : "031",
             "data" : [
                [
                   "Perl",
@@ -559,12 +571,9 @@
                   9
                ]
             ],
-            "name" : "031",
             "id" : "031"
          },
          {
-            "id" : "032",
-            "name" : "032",
             "data" : [
                [
                   "Perl",
@@ -578,11 +587,13 @@
                   "Blog",
                   10
                ]
-            ]
+            ],
+            "name" : "032",
+            "id" : "032"
          },
          {
-            "name" : "033",
             "id" : "033",
+            "name" : "033",
             "data" : [
                [
                   "Perl",
@@ -599,8 +610,6 @@
             ]
          },
          {
-            "name" : "034",
-            "id" : "034",
             "data" : [
                [
                   "Perl",
@@ -614,9 +623,12 @@
                   "Blog",
                   11
                ]
-            ]
+            ],
+            "name" : "034",
+            "id" : "034"
          },
          {
+            "id" : "035",
             "data" : [
                [
                   "Perl",
@@ -631,11 +643,9 @@
                   9
                ]
             ],
-            "name" : "035",
-            "id" : "035"
+            "name" : "035"
          },
          {
-            "name" : "036",
             "id" : "036",
             "data" : [
                [
@@ -650,9 +660,11 @@
                   "Blog",
                   11
                ]
-            ]
+            ],
+            "name" : "036"
          },
          {
+            "id" : "037",
             "data" : [
                [
                   "Perl",
@@ -667,12 +679,10 @@
                   9
                ]
             ],
-            "id" : "037",
             "name" : "037"
          },
          {
             "id" : "038",
-            "name" : "038",
             "data" : [
                [
                   "Perl",
@@ -686,7 +696,8 @@
                   "Blog",
                   12
                ]
-            ]
+            ],
+            "name" : "038"
          },
          {
             "id" : "039",
@@ -707,8 +718,6 @@
             ]
          },
          {
-            "name" : "040",
-            "id" : "040",
             "data" : [
                [
                   "Perl",
@@ -722,11 +731,12 @@
                   "Blog",
                   10
                ]
-            ]
+            ],
+            "name" : "040",
+            "id" : "040"
          },
          {
             "name" : "041",
-            "id" : "041",
             "data" : [
                [
                   "Perl",
@@ -740,11 +750,10 @@
                   "Blog",
                   9
                ]
-            ]
+            ],
+            "id" : "041"
          },
          {
-            "id" : "042",
-            "name" : "042",
             "data" : [
                [
                   "Perl",
@@ -758,11 +767,13 @@
                   "Blog",
                   11
                ]
-            ]
+            ],
+            "name" : "042",
+            "id" : "042"
          },
          {
-            "name" : "043",
             "id" : "043",
+            "name" : "043",
             "data" : [
                [
                   "Perl",
@@ -779,6 +790,7 @@
             ]
          },
          {
+            "name" : "044",
             "data" : [
                [
                   "Perl",
@@ -793,7 +805,6 @@
                   11
                ]
             ],
-            "name" : "044",
             "id" : "044"
          },
          {
@@ -829,12 +840,10 @@
                   10
                ]
             ],
-            "id" : "046",
-            "name" : "046"
+            "name" : "046",
+            "id" : "046"
          },
          {
-            "id" : "047",
-            "name" : "047",
             "data" : [
                [
                   "Perl",
@