- Added solutions by Cheok-Yin Fung.

12 files changed, 1116 insertions, 1013 deletions

diff --git a/challenge-046/cheok-yin-fung/perl/ch-1.pl b/challenge-046/cheok-yin-fung/perl/ch-1.pl
new file mode 100644
index 0000000000..649e9e4802
--- /dev/null
+++ b/challenge-046/cheok-yin-fung/perl/ch-1.pl
@@ -0,0 +1,59 @@
+#!/usr/bin/perl

+use strict;

+

+my $numberoflines = 6;

+my $msglength = 8;

+my @charoccurence;

+

+for my $i (0..$numberoflines-1) {

+	for my $j (0..$msglength-1) {

+		for my $d (33..126) {

+			$charoccurence[$j][$d] = 0;  # ref to the ASCII table; #33 is ! and #126 is ~

+		}

+	}

+}

+

+

+

+my $msg = 'P + 2 l ! a t o

+1 e 8 0 R $ 4 u

+5 - r ] + a > /

+P x w l b 3 k \

+2 e 3 5 R 8 y u

+< ! r ^ ( ) k 0';

+

+# " =~ s/\s//g " isn't good becoz it removes new line characters

+$msg =~ s/\h//g;

+

+my @lines = split("\n", $msg);

+

+

+for my $i (0..$numberoflines-1) {

+	my  @str = split // , $lines[$i];

+	for my $j (0..$msglength-1) {

+		for my $d (33..126) {

+			if (ord($str[$j]) == $d) {

+			#			 if ( $str[$j] eq chr($d)) {

+			#	 print chr($d);			 #testing 

+				 $charoccurence[$j][$d]++;

+			 } 

+		}

+	}

+}

+

+

+my $truth = "";

+

+for my $j (0..$msglength-1) {

+		for my $d (33..126) {

+			if ($charoccurence[$j][$d] > 1 ) { $truth .= chr($d); } 

+		}

+}

+

+print $truth;

+

+

+

+# 1. read lines

+# 2. find out the repeated characters

+# 3. split(, / //g);

diff --git a/challenge-046/cheok-yin-fung/perl/ch-2.pl b/challenge-046/cheok-yin-fung/perl/ch-2.pl
new file mode 100644
index 0000000000..8cc24519d8
--- /dev/null
+++ b/challenge-046/cheok-yin-fung/perl/ch-2.pl
@@ -0,0 +1,29 @@
+#!/usr/bin/perl

+use strict;

+use integer;

+

+my @doors;

+my $labor;

+

+$doors[0] = 'true'; # main entrance

+

+for my $i (1..500) {

+	$doors[$i] = undef;

+}

+

+for my $i (1..250) {

+	$labor = int(500/$i);

+	for my $j (1..$labor) {

+		$doors[$i*$j] = not($doors[$i*$j]);

+	}

+}

+

+for my $i (251..500) {

+	$doors[$i] = not($doors[$i]);

+}

+

+for my $i (1..500) {

+	if ($doors[$i]) {print $i, "\n";}

+}

+

+

diff --git a/stats/pwc-current.json b/stats/pwc-current.json
index c06b9ff4a6..c90812c2a9 100644
--- a/stats/pwc-current.json
+++ b/stats/pwc-current.json
@@ -1,27 +1,202 @@
 {
+   "plotOptions" : {
+      "series" : {
+         "borderWidth" : 0,
+         "dataLabels" : {
+            "format" : "{point.y}",
+            "enabled" : 1
+         }
+      }
+   },
+   "tooltip" : {
+      "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/>",
+      "followPointer" : 1
+   },
    "title" : {
       "text" : "Perl Weekly Challenge - 046"
    },
+   "series" : [
+      {
+         "colorByPoint" : 1,
+         "data" : [
+            {
+               "name" : "Alicia Bielsa",
+               "drilldown" : "Alicia Bielsa",
+               "y" : 2
+            },
+            {
+               "y" : 2,
+               "name" : "Andrezgz",
+               "drilldown" : "Andrezgz"
+            },
+            {
+               "name" : "Arne Sommer",
+               "drilldown" : "Arne Sommer",
+               "y" : 3
+            },
+            {
+               "drilldown" : "Athanasius",
+               "name" : "Athanasius",
+               "y" : 2
+            },
+            {
+               "y" : 2,
+               "drilldown" : "Cheok-Yin Fung",
+               "name" : "Cheok-Yin Fung"
+            },
+            {
+               "y" : 2,
+               "drilldown" : "Cristina Heredia",
+               "name" : "Cristina Heredia"
+            },
+            {
+               "y" : 2,
+               "name" : "Dave Jacoby",
+               "drilldown" : "Dave Jacoby"
+            },
+            {
+               "y" : 2,
+               "name" : "Duane Powell",
+               "drilldown" : "Duane Powell"
+            },
+            {
+               "name" : "Duncan C. White",
+               "drilldown" : "Duncan C. White",
+               "y" : 2
+            },
+            {
+               "drilldown" : "E. Choroba",
+               "name" : "E. Choroba",
+               "y" : 3
+            },
+            {
+               "name" : "Jaldhar H. Vyas",
+               "drilldown" : "Jaldhar H. Vyas",
+               "y" : 5
+            },
+            {
+               "drilldown" : "Javier Luque",
+               "name" : "Javier Luque",
+               "y" : 5
+            },
+            {
+               "drilldown" : "Kevin Colyer",
+               "name" : "Kevin Colyer",
+               "y" : 2
+            },
+            {
+               "y" : 5,
+               "name" : "Laurent Rosenfeld",
+               "drilldown" : "Laurent Rosenfeld"
+            },
+            {
+               "y" : 3,
+               "name" : "Luca Ferrari",
+               "drilldown" : "Luca Ferrari"
+            },
+            {
+               "drilldown" : "Mark Anderson",
+               "name" : "Mark Anderson",
+               "y" : 2
+            },
+            {
+               "drilldown" : "Markus Holzer",
+               "name" : "Markus Holzer",
+               "y" : 2
+            },
+            {
+               "name" : "Mohammad S Anwar",
+               "drilldown" : "Mohammad S Anwar",
+               "y" : 2
+            },
+            {
+               "drilldown" : "Noud Aldenhoven",
+               "name" : "Noud Aldenhoven",
+               "y" : 3
+            },
+            {
+               "drilldown" : "Peter Scott",
+               "name" : "Peter Scott",
+               "y" : 1
+            },
+            {
+               "drilldown" : "Rage311",
+               "name" : "Rage311",
+               "y" : 2
+            },
+            {
+               "y" : 4,
+               "name" : "Roger Bell West",
+               "drilldown" : "Roger Bell West"
+            },
+            {
+               "y" : 4,
+               "drilldown" : "Ruben Westerberg",
+               "name" : "Ruben Westerberg"
+            },
+            {
+               "drilldown" : "Ryan Thompson",
+               "name" : "Ryan Thompson",
+               "y" : 6
+            },
+            {
+               "drilldown" : "Saif Ahmed",
+               "name" : "Saif Ahmed",
+               "y" : 2
+            },
+            {
+               "drilldown" : "Simon Proctor",
+               "name" : "Simon Proctor",
+               "y" : 2
+            },
+            {
+               "y" : 4,
+               "name" : "Ulrich Rieke",
+               "drilldown" : "Ulrich Rieke"
+            },
+            {
+               "name" : "User Person",
+               "drilldown" : "User Person",
+               "y" : 2
+            },
+            {
+               "drilldown" : "Wanderdoc",
+               "name" : "Wanderdoc",
+               "y" : 2
+            }
+         ],
+         "name" : "Perl Weekly Challenge - 046"
+      }
+   ],
+   "chart" : {
+      "type" : "column"
+   },
+   "yAxis" : {
+      "title" : {
+         "text" : "Total Solutions"
+      }
+   },
    "drilldown" : {
       "series" : [
          {
-            "id" : "Alicia Bielsa",
             "data" : [
                [
                   "Perl",
                   2
                ]
             ],
-            "name" : "Alicia Bielsa"
+            "name" : "Alicia Bielsa",
+            "id" : "Alicia Bielsa"
          },
          {
-            "name" : "Andrezgz",
             "data" : [
                [
                   "Perl",
                   2
                ]
             ],
+            "name" : "Andrezgz",
             "id" : "Andrezgz"
          },
          {
@@ -39,54 +214,64 @@
             ]
          },
          {
-            "name" : "Athanasius",
             "data" : [
                [
                   "Perl",
                   2
                ]
             ],
+            "name" : "Athanasius",
             "id" : "Athanasius"
          },
          {
-            "name" : "Cristina Heredia",
+            "id" : "Cheok-Yin Fung",
             "data" : [
                [
                   "Perl",
                   2
                ]
             ],
+            "name" : "Cheok-Yin Fung"
+         },
+         {
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ]
+            ],
+            "name" : "Cristina Heredia",
             "id" : "Cristina Heredia"
          },
          {
-            "id" : "Dave Jacoby",
             "data" : [
                [
                   "Perl",
                   2
                ]
             ],
-            "name" : "Dave Jacoby"
+            "name" : "Dave Jacoby",
+            "id" : "Dave Jacoby"
          },
          {
-            "id" : "Duane Powell",
-            "name" : "Duane Powell",
             "data" : [
                [
                   "Perl",
                   2
                ]
-            ]
+            ],
+            "name" : "Duane Powell",
+            "id" : "Duane Powell"
          },
          {
             "id" : "Duncan C. White",
-            "name" : "Duncan C. White",
             "data" : [
                [
                   "Perl",
                   2
                ]
-            ]
+            ],
+            "name" : "Duncan C. White"
          },
          {
             "name" : "E. Choroba",
@@ -103,7 +288,7 @@
             "id" : "E. Choroba"
          },
          {
-            "id" : "Jaldhar H. Vyas",
+            "name" : "Jaldhar H. Vyas",
             "data" : [
                [
                   "Perl",
@@ -118,10 +303,9 @@
                   1
                ]
             ],
-            "name" : "Jaldhar H. Vyas"
+            "id" : "Jaldhar H. Vyas"
          },
          {
-            "id" : "Javier Luque",
             "name" : "Javier Luque",
             "data" : [
                [
@@ -136,20 +320,21 @@
                   "Blog",
                   1
                ]
-            ]
+            ],
+            "id" : "Javier Luque"
          },
          {
+            "id" : "Kevin Colyer",
             "name" : "Kevin Colyer",
             "data" : [
                [
                   "Raku",
                   2
                ]
-            ],
-            "id" : "Kevin Colyer"
+            ]
          },
          {
-            "id" : "Laurent Rosenfeld",
+            "name" : "Laurent Rosenfeld",
             "data" : [
                [
                   "Perl",
@@ -164,11 +349,10 @@
                   1
                ]
             ],
-            "name" : "Laurent Rosenfeld"
+            "id" : "Laurent Rosenfeld"
          },
          {
             "id" : "Luca Ferrari",
-            "name" : "Luca Ferrari",
             "data" : [
                [
                   "Raku",
@@ -178,17 +362,18 @@
                   "Blog",
                   1
                ]
-            ]
+            ],
+            "name" : "Luca Ferrari"
          },
          {
+            "id" : "Mark Anderson",
             "data" : [
                [
                   "Raku",
                   2
                ]
             ],
-            "name" : "Mark Anderson",
-            "id" : "Mark Anderson"
+            "name" : "Mark Anderson"
          },
          {
             "data" : [
@@ -211,6 +396,7 @@
             "id" : "Mohammad S Anwar"
          },
          {
+            "name" : "Noud Aldenhoven",
             "data" : [
                [
                   "Raku",
@@ -221,28 +407,27 @@
                   1
                ]
             ],
-            "name" : "Noud Aldenhoven",
             "id" : "Noud Aldenhoven"
          },
          {
-            "id" : "Peter Scott",
+            "name" : "Peter Scott",
             "data" : [
                [
                   "Perl",
                   1
                ]
             ],
-            "name" : "Peter Scott"
+            "id" : "Peter Scott"
          },
          {
-            "name" : "Rage311",
+            "id" : "Rage311",
             "data" : [
                [
                   "Perl",
                   2
                ]
             ],
-            "id" : "Rage311"
+            "name" : "Rage311"
          },
          {
             "id" : "Roger Bell West",
@@ -273,6 +458,7 @@
             ]
          },
          {
+            "id" : "Ryan Thompson",
             "name" : "Ryan Thompson",
             "data" : [
                [
@@ -287,28 +473,27 @@
                   "Blog",
                   2
                ]
-            ],
-            "id" : "Ryan Thompson"
+            ]
          },
          {
             "id" : "Saif Ahmed",
+            "name" : "Saif Ahmed",
             "data" : [
                [
                   "Perl",
                   2
                ]
-            ],
-            "name" : "Saif Ahmed"
+            ]
          },
          {
-            "id" : "Simon Proctor",
             "name" : "Simon Proctor",
             "data" : [
                [
                   "Raku",
                   2
                ]
-            ]
+            ],
+            "id" : "Simon Proctor"
          },
          {
             "id" : "Ulrich Rieke",
@@ -335,14 +520,14 @@
             "name" : "User Person"
          },
          {
-            "name" : "Wanderdoc",
+            "id" : "Wanderdoc",
             "data" : [
                [
                   "Perl",
                   2
                ]
             ],
-            "id" : "Wanderdoc"
+            "name" : "Wanderdoc"
          }
       ]
    },
@@ -350,179 +535,9 @@
       "enabled" : 0
    },
    "subtitle" : {
-      "text" : "[Champions: 28] Last updated at 2020-02-09 23:51:34 GMT"
-   },
-   "tooltip" : {
-      "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/>",
-      "followPointer" : 1
-   },
-   "yAxis" : {
-      "title" : {
-         "text" : "Total Solutions"
-      }
-   },
-   "chart" : {
-      "type" : "column"
+      "text" : "[Champions: 29] Last updated at 2020-02-10 00:05:07 GMT"
    },
    "xAxis" : {
       "type" : "category"
-   },
-   "plotOptions" : {
-      "series" : {
-         "dataLabels" : {
-            "format" : "{point.y}",
-            "enabled" : 1
-         },
-         "borderWidth" : 0
-      }
-   },
-   "series" : [
-      {
-         "name" : "Perl Weekly Challenge - 046",
-         "data" : [
-            {
-               "name" : "Alicia Bielsa",
-               "drilldown" : "Alicia Bielsa",
-               "y" : 2
-            },
-            {
-               "name" : "Andrezgz",
-               "drilldown" : "Andrezgz",
-               "y" : 2
-            },
-            {
-               "name" : "Arne Sommer",
-               "y" : 3,
-               "drilldown" : "Arne Sommer"
-            },
-            {
-               "name" : "Athanasius",
-               "y" : 2,
-               "drilldown" : "Athanasius"
-            },
-            {
-               "name" : "Cristina Heredia",
-               "y" : 2,
-               "drilldown" : "Cristina Heredia"
-            },
-            {
-               "name" : "Dave Jacoby",
-               "y" : 2,
-               "drilldown" : "Dave Jacoby"
-            },
-            {
-               "drilldown" : "Duane Powell",
-               "y" : 2,
-               "name" : "Duane Powell"
-            },
-            {
-               "name" : "Duncan C. White",
-               "drilldown" : "Duncan C. White",
-               "y" : 2
-            },
-            {
-               "name" : "E. Choroba",
-               "y" : 3,
-               "drilldown" : "E. Choroba"
-            },
-            {
-               "y" : 5,
-               "drilldown" : "Jaldhar H. Vyas",
-               "name" : "Jaldhar H. Vyas"
-            },
-            {
-               "y" : 5,
-               "drilldown" : "Javier Luque",
-               "name" : "Javier Luque"
-            },
-            {
-               "y" : 2,
-               "drilldown" : "Kevin Colyer",
-               "name" : "Kevin Colyer"
-            },
-            {
-               "name" : "Laurent Rosenfeld",
-               "drilldown" : "Laurent Rosenfeld",
-               "y" : 5
-            },
-            {
-               "name" : "Luca Ferrari",
-               "y" : 3,
-               "drilldown" : "Luca Ferrari"
-            },
-            {
-               "y" : 2,
-               "drilldown" : "Mark Anderson",
-               "name" : "Mark Anderson"
-            },
-            {
-               "y" : 2,
-               "drilldown" : "Markus Holzer",
-               "name" : "Markus Holzer"
-            },
-            {
-               "name" : "Mohammad S Anwar",
-               "drilldown" : "Mohammad S Anwar",
-               "y" : 2
-            },
-            {
-               "drilldown" : "Noud Aldenhoven",
-               "y" : 3,
-               "name" : "Noud Aldenhoven"
-            },
-            {
-               "drilldown" : "Peter Scott",
-               "y" : 1,
-               "name" : "Peter Scott"
-            },
-            {
-               "y" : 2,
-               "drilldown" : "Rage311",
-               "name" : "Rage311"
-            },
-            {
-               "drilldown" : "Roger Bell West",
-               "y" : 4,
-               "name" : "Roger Bell West"
-            },
-            {
-               "name" : "Ruben Westerberg",
-               "y" : 4,
-               "drilldown" : "Ruben Westerberg"
-            },
-            {
-               "name" : "Ryan Thompson",
-               "drilldown" : "Ryan Thompson",
-               "y" : 6
-            },
-            {
-               "drilldown" : "Saif Ahmed",
-               "y" : 2,
-               "name" : "Saif Ahmed"
-            },
-            {
-               "name" : "Simon Proctor",
-               "drilldown" : "Simon Proctor",
-               "y" : 2
-            },
-            {
-               "drilldown" : "Ulrich Rieke",
-               "y" : 4,
-               "name" : "Ulrich Rieke"
-            },
-            {
-               "name" : "User Person",
-               "drilldown" : "User Person",
-               "y" : 2
-            },
-            {
-               "drilldown" : "Wanderdoc",
-               "y" : 2,
-               "name" : "Wanderdoc"
-            }
-         ],
-         "colorByPoint" : 1
-      }
-   ]
+   }
 }
diff --git a/stats/pwc-language-breakdown-summary.json b/stats/pwc-language-breakdown-summary.json
index f19f7645dc..32d0695fbb 100644
--- a/stats/pwc-language-breakdown-summary.json
+++ b/stats/pwc-language-breakdown-summary.json
@@ -1,6 +1,6 @@
 {
-   "title" : {
-      "text" : "Perl Weekly Challenge Contributions [2019 - 2020]"
+   "legend" : {
+      "enabled" : "false"
    },
    "xAxis" : {
       "type" : "category",
@@ -11,26 +11,32 @@
          }
       }
    },
+   "subtitle" : {
+      "text" : "Last updated at 2020-02-10 00:05:07 GMT"
+   },
    "yAxis" : {
       "min" : 0,
       "title" : {
          "text" : null
       }
    },
-   "subtitle" : {
-      "text" : "Last updated at 2020-02-09 23:51:34 GMT"
-   },
    "chart" : {
       "type" : "column"
    },
-   "legend" : {
-      "enabled" : "false"
-   },
-   "tooltip" : {
-      "pointFormat" : "<b>{point.y:.0f}</b>"
-   },
    "series" : [
       {
+         "dataLabels" : {
+            "y" : 10,
+            "rotation" : -90,
+            "format" : "{point.y:.0f}",
+            "style" : {
+               "fontFamily" : "Verdana, sans-serif",
+               "fontSize" : "13px"
+            },
+            "color" : "#FFFFFF",
+            "enabled" : "true",
+            "align" : "right"
+         },
          "name" : "Contributions",
          "data" : [
             [
@@ -39,25 +45,19 @@
             ],
             [
                "Perl",
-               1898
+               1900
             ],
             [
                "Raku",
                1159
             ]
-         ],
-         "dataLabels" : {
-            "rotation" : -90,
-            "format" : "{point.y:.0f}",
-            "color" : "#FFFFFF",
-            "y" : 10,
-            "enabled" : "true",
-            "align" : "right",
-            "style" : {
-               "fontSize" : "13px",
-               "fontFamily" : "Verdana, sans-serif"
-            }
-         }
+         ]
       }
-   ]
+   ],
+   "title" : {
+      "text" : "Perl Weekly Challenge Contributions [2019 - 2020]"
+   },
+   "tooltip" : {
+      "pointFormat" : "<b>{point.y:.0f}</b>"
+   }
 }
diff --git a/stats/pwc-language-breakdown.json b/stats/pwc-language-breakdown.json
index 9efbaf91a0..938c187f02 100644
--- a/stats/pwc-language-breakdown.json
+++ b/stats/pwc-language-breakdown.json
@@ -1,280 +1,17 @@
 {
-   "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/>"
+   "xAxis" : {
+      "type" : "category"
    },
    "subtitle" : {
-      "text" : "Click the columns to drilldown the language breakdown. Last updated at 2020-02-09 23:51:34 GMT"
+      "text" : "Click the columns to drilldown the language breakdown. Last updated at 2020-02-10 00:05:07 GMT"
    },
    "legend" : {
       "enabled" : "false"
    },
-   "yAxis" : {
-      "title" : {
-         "text" : "Total Solutions"
-      }
-   },
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