- Added solutions by Cheok-Yin Fung.

1 files changed, 218 insertions, 203 deletions

diff --git a/stats/pwc-current.json b/stats/pwc-current.json
index 6f0d592815..00a87c8f7e 100644
--- a/stats/pwc-current.json
+++ b/stats/pwc-current.json
@@ -1,164 +1,6 @@
 {
    "subtitle" : {
-      "text" : "[Champions: 27] Last updated at 2020-03-15 22:13:49 GMT"
-   },
-   "chart" : {
-      "type" : "column"
-   },
-   "series" : [
-      {
-         "name" : "Perl Weekly Challenge - 051",
-         "colorByPoint" : 1,
-         "data" : [
-            {
-               "drilldown" : "Adam Russell",
-               "y" : 3,
-               "name" : "Adam Russell"
-            },
-            {
-               "y" : 3,
-               "name" : "Alicia Bielsa",
-               "drilldown" : "Alicia Bielsa"
-            },
-            {
-               "name" : "Andrezgz",
-               "y" : 2,
-               "drilldown" : "Andrezgz"
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-            {
-               "y" : 3,
-               "name" : "Arne Sommer",
-               "drilldown" : "Arne Sommer"
-            },
-            {
-               "drilldown" : "Colin Crain",
-               "name" : "Colin Crain",
-               "y" : 4
-            },
-            {
-               "name" : "Cristina Heredia",
-               "y" : 2,
-               "drilldown" : "Cristina Heredia"
-            },
-            {
-               "y" : 2,
-               "name" : "Dave Cross",
-               "drilldown" : "Dave Cross"
-            },
-            {
-               "drilldown" : "Dave Jacoby",
-               "name" : "Dave Jacoby",
-               "y" : 2
-            },
-            {
-               "drilldown" : "Duncan C. White",
-               "name" : "Duncan C. White",
-               "y" : 2
-            },
-            {
-               "drilldown" : "E. Choroba",
-               "y" : 2,
-               "name" : "E. Choroba"
-            },
-            {
-               "drilldown" : "Jaldhar H. Vyas",
-               "y" : 5,
-               "name" : "Jaldhar H. Vyas"
-            },
-            {
-               "drilldown" : "Javier Luque",
-               "y" : 5,
-               "name" : "Javier Luque"
-            },
-            {
-               "drilldown" : "Kevin Colyer",
-               "name" : "Kevin Colyer",
-               "y" : 2
-            },
-            {
-               "drilldown" : "Laurent Rosenfeld",
-               "y" : 2,
-               "name" : "Laurent Rosenfeld"
-            },
-            {
-               "y" : 4,
-               "name" : "Luca Ferrari",
-               "drilldown" : "Luca Ferrari"
-            },
-            {
-               "name" : "Mark Anderson",
-               "y" : 2,
-               "drilldown" : "Mark Anderson"
-            },
-            {
-               "y" : 2,
-               "name" : "Markus Holzer",
-               "drilldown" : "Markus Holzer"
-            },
-            {
-               "drilldown" : "Mohammad S Anwar",
-               "name" : "Mohammad S Anwar",
-               "y" : 5
-            },
-            {
-               "name" : "Phillip Harris",
-               "y" : 2,
-               "drilldown" : "Phillip Harris"
-            },
-            {
-               "y" : 4,
-               "name" : "Roger Bell West",
-               "drilldown" : "Roger Bell West"
-            },
-            {
-               "name" : "Ruben Westerberg",
-               "y" : 4,
-               "drilldown" : "Ruben Westerberg"
-            },
-            {
-               "drilldown" : "Saif Ahmed",
-               "name" : "Saif Ahmed",
-               "y" : 2
-            },
-            {
-               "name" : "Simon Proctor",
-               "y" : 2,
-               "drilldown" : "Simon Proctor"
-            },
-            {
-               "drilldown" : "Ulrich Rieke",
-               "y" : 4,
-               "name" : "Ulrich Rieke"
-            },
-            {
-               "drilldown" : "Walt Mankowski",
-               "name" : "Walt Mankowski",
-               "y" : 2
-            },
-            {
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-               "name" : "Wanderdoc",
-               "drilldown" : "Wanderdoc"
-            },
-            {
-               "drilldown" : "Yet Ebreo",
-               "name" : "Yet Ebreo",
-               "y" : 2
-            }
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-   "plotOptions" : {
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-   },
-   "title" : {
-      "text" : "Perl Weekly Challenge - 051"
+      "text" : "[Champions: 28] Last updated at 2020-03-15 22:26:08 GMT"
    },
    "yAxis" : {
       "title" : {
@@ -168,6 +10,7 @@
    "drilldown" : {
       "series" : [
          {
+            "id" : "Adam Russell",
             "data" : [
                [
                   "Perl",
@@ -178,10 +21,10 @@
                   1
                ]
             ],
-            "id" : "Adam Russell",
             "name" : "Adam Russell"
          },
          {
+            "name" : "Alicia Bielsa",
             "data" : [
                [
                   "Perl",
@@ -192,20 +35,21 @@
                   1
                ]
             ],
-            "id" : "Alicia Bielsa",
-            "name" : "Alicia Bielsa"
+            "id" : "Alicia Bielsa"
          },
          {
-            "name" : "Andrezgz",
             "data" : [
                [
                   "Perl",
                   2
                ]
             ],
-            "id" : "Andrezgz"
+            "id" : "Andrezgz",
+            "name" : "Andrezgz"
          },
          {
+            "name" : "Arne Sommer",
+            "id" : "Arne Sommer",
             "data" : [
                [
                   "Raku",
@@ -215,12 +59,20 @@
                   "Blog",
                   1
                ]
-            ],
-            "id" : "Arne Sommer",
-            "name" : "Arne Sommer"
+            ]
+         },
+         {
+            "name" : "Cheok-Yin Fung",
+            "id" : "Cheok-Yin Fung",
+            "data" : [
+               [
+                  "Perl",
+                  2
+               ]
+            ]
          },
          {
-            "id" : "Colin Crain",
+            "name" : "Colin Crain",
             "data" : [
                [
                   "Perl",
@@ -231,16 +83,16 @@
                   2
                ]
             ],
-            "name" : "Colin Crain"
+            "id" : "Colin Crain"
          },
          {
-            "id" : "Cristina Heredia",
             "data" : [
                [
                   "Perl",
                   2
                ]
             ],
+            "id" : "Cristina Heredia",
             "name" : "Cristina Heredia"
          },
          {
@@ -255,23 +107,23 @@
          },
          {
             "name" : "Dave Jacoby",
-            "id" : "Dave Jacoby",
             "data" : [
                [
                   "Perl",
                   2
                ]
-            ]
+            ],
+            "id" : "Dave Jacoby"
          },
          {
-            "name" : "Duncan C. White",
-            "id" : "Duncan C. White",
             "data" : [
                [
                   "Perl",
                   2
                ]
-            ]
+            ],
+            "id" : "Duncan C. White",
+            "name" : "Duncan C. White"
          },
          {
             "data" : [
@@ -302,7 +154,6 @@
             ]
          },
          {
-            "name" : "Javier Luque",
             "id" : "Javier Luque",
             "data" : [
                [
@@ -317,19 +168,22 @@
                   "Blog",
                   1
                ]
-            ]
+            ],
+            "name" : "Javier Luque"
          },
          {
+            "name" : "Kevin Colyer",
             "data" : [
                [
                   "Raku",
                   2
                ]
             ],
-            "id" : "Kevin Colyer",
-            "name" : "Kevin Colyer"
+            "id" : "Kevin Colyer"
          },
          {
+            "name" : "Laurent Rosenfeld",
+            "id" : "Laurent Rosenfeld",
             "data" : [
                [
                   "Raku",
@@ -339,12 +193,9 @@
                   "Blog",
                   1
                ]
-            ],
-            "id" : "Laurent Rosenfeld",
-            "name" : "Laurent Rosenfeld"
+            ]
          },
          {
-            "id" : "Luca Ferrari",
             "data" : [
                [
                   "Raku",
@@ -355,16 +206,17 @@
                   2
                ]
             ],
+            "id" : "Luca Ferrari",
             "name" : "Luca Ferrari"
          },
          {
+            "id" : "Mark Anderson",
             "data" : [
                [
                   "Raku",
                   2
                ]
             ],
-            "id" : "Mark Anderson",
             "name" : "Mark Anderson"
          },
          {
@@ -378,7 +230,7 @@
             ]
          },
          {
-            "id" : "Mohammad S Anwar",
+            "name" : "Mohammad S Anwar",
             "data" : [
                [
                   "Perl",
@@ -393,7 +245,7 @@
                   1
                ]
             ],
-            "name" : "Mohammad S Anwar"
+            "id" : "Mohammad S Anwar"
          },
          {
             "id" : "Phillip Harris",
@@ -406,6 +258,7 @@
             "name" : "Phillip Harris"
          },
          {
+            "name" : "Roger Bell West",
             "id" : "Roger Bell West",
             "data" : [
                [
@@ -416,11 +269,10 @@
                   "Raku",
                   2
                ]
-            ],
-            "name" : "Roger Bell West"
+            ]
          },
          {
-            "id" : "Ruben Westerberg",
+            "name" : "Ruben Westerberg",
             "data" : [
                [
                   "Perl",
@@ -431,7 +283,7 @@
                   2
                ]
             ],
-            "name" : "Ruben Westerberg"
+            "id" : "Ruben Westerberg"
          },
          {
             "name" : "Saif Ahmed",
@@ -444,14 +296,14 @@
             ]
          },
          {
-            "name" : "Simon Proctor",
+            "id" : "Simon Proctor",
             "data" : [
                [
                   "Raku",
                   2
                ]
             ],
-            "id" : "Simon Proctor"
+            "name" : "Simon Proctor"
          },
          {
             "name" : "Ulrich Rieke",
@@ -468,46 +320,209 @@
             ]
          },
          {
-            "name" : "Walt Mankowski",
+            "id" : "Walt Mankowski",
             "data" : [
                [
                   "Perl",
                   2
                ]
             ],
-            "id" : "Walt Mankowski"
+            "name" : "Walt Mankowski"
          },
          {
-            "name" : "Wanderdoc",
             "id" : "Wanderdoc",
             "data" : [
                [
                   "Perl",
                   2
                ]
-            ]
+            ],
+            "name" : "Wanderdoc"
          },
          {
+            "id" : "Yet Ebreo",
             "data" : [
                [
                   "Perl",
                   2
                ]
             ],
-            "id" : "Yet Ebreo",
             "name" : "Yet Ebreo"
          }
       ]
    },
-   "tooltip" : {
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-      "followPointer" : 1,
-      "headerFormat" : "<span style='font-size:11px'>{series.name}</span><br/>"
+   "legend" : {
+      "enabled" : 0
+   },
+   "plotOptions" : {
+      "series" : {
+         "dataLabels" : {
+            "format" : "{point.y}",
+            "enabled" : 1
+         },
+         "borderWidth" : 0
+      }
    },
    "xAxis" : {
       "type" : "category"
    },
-   "legend" : {
-      "enabled" : 0
+   "series" : [
+      {
+         "colorByPoint" : 1,
+         "data" : [
+            {
+               "drilldown" : "Adam Russell",
+               "y" : 3,
+               "name" : "Adam Russell"
+            },
+            {
+               "drilldown" : "Alicia Bielsa",
+               "name" : "Alicia Bielsa",
+               "y" : 3
+            },
+            {
+               "drilldown" : "Andrezgz",
+               "name" : "Andrezgz",
+               "y" : 2
+            },
+            {
+               "y" : 3,
+               "name" : "Arne Sommer",
+               "drilldown" : "Arne Sommer"
+            },
+            {
+               "name" : "Cheok-Yin Fung",
+               "y" : 2,
+               "drilldown" : "Cheok-Yin Fung"
+            },
+            {
+               "drilldown" : "Colin Crain",
+               "y" : 4,
+               "name" : "Colin Crain"
+            },
+            {
+               "name" : "Cristina Heredia",
+               "y" : 2,
+               "drilldown" : "Cristina Heredia"
+            },
+            {
+               "drilldown" : "Dave Cross",
+               "name" : "Dave Cross",
+               "y" : 2
+            },
+            {
+               "name" : "Dave Jacoby",
+               "y" : 2,
+               "drilldown" : "Dave Jacoby"
+            },
+            {
+               "name" : "Duncan C. White",
+               "y" : 2,
+               "drilldown" : "Duncan C. White"
+            },
+            {
+               "name" : "E. Choroba",
+               "y" : 2,
+               "drilldown" : "E. Choroba"
+            },
+            {
+               "drilldown" : "Jaldhar H. Vyas",
+               "name" : "Jaldhar H. Vyas",
+               "y" : 5
+            },
+            {
+               "drilldown" : "Javier Luque",
+               "y" : 5,
+               "name" : "Javier Luque"
+            },
+            {
+               "y" : 2,
+               "name" : "Kevin Colyer",
+               "drilldown" : "Kevin Colyer"
+            },
+            {
+               "drilldown" : "Laurent Rosenfeld",
+               "name" : "Laurent Rosenfeld",
+               "y" : 2
+            },
+            {
+               "y" : 4,
+               "name" : "Luca Ferrari",
+               "drilldown" : "Luca Ferrari"
+            },
+            {
+               "y" : 2,
+               "name" : "Mark Anderson",
+               "drilldown" : "Mark Anderson"
+            },
+            {
+               "drilldown" : "Markus Holzer",
+               "y" : 2,
+               "name" : "Markus Holzer"
+            },
+            {
+               "drilldown" : "Mohammad S Anwar",
+               "name" : "Mohammad S Anwar",
+               "y" : 5
+            },
+            {
+               "y" : 2,
+               "name" : "Phillip Harris",
+               "drilldown" : "Phillip Harris"
+            },
+            {
+               "y" : 4,
+               "name" : "Roger Bell West",
+               "drilldown" : "Roger Bell West"
+            },
+            {
+               "drilldown" : "Ruben Westerberg",
+               "y" : 4,
+               "name" : "Ruben Westerberg"
+            },
+            {
+               "drilldown" : "Saif Ahmed",
+               "name" : "Saif Ahmed",
+               "y" : 2
+            },
+            {
+               "drilldown" : "Simon Proctor",
+               "name" : "Simon Proctor",
+               "y" : 2
+            },
+            {
+               "drilldown" : "Ulrich Rieke",
+               "name" : "Ulrich Rieke",
+               "y" : 4
+            },
+            {
+               "drilldown" : "Walt Mankowski",
+               "y" : 2,
+               "name" : "Walt Mankowski"
+            },
+            {
+               "name" : "Wanderdoc",
+               "y" : 2,
+               "drilldown" : "Wanderdoc"
+            },
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+               "y" : 2,
+               "name" : "Yet Ebreo",
+               "drilldown" : "Yet Ebreo"
+            }
+         ],
+         "name" : "Perl Weekly Challenge - 051"
+      }
+   ],
+   "title" : {
+      "text" : "Perl Weekly Challenge - 051"
+   },
+   "tooltip" : {
+      "headerFormat" : "<span style='font-size:11px'>{series.name}</span><br/>",
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