- Added solution by Olivier Delouya.

15 files changed, 1597 insertions, 1577 deletions

diff --git a/challenge-143/olivier-delouya/perl/ch-1.sh b/challenge-143/olivier-delouya/perl/ch-1.sh
new file mode 100644
index 0000000000..fa86b0e685
--- /dev/null
+++ b/challenge-143/olivier-delouya/perl/ch-1.sh
@@ -0,0 +1,5 @@
+calculator='print(eval($e));'
+
+perl -se $calculator -- -e="10 + 20 - 5"
+
+perl -se $calculator -- -e="(10 + 20 - 5) * 2"
diff --git a/stats/pwc-current.json b/stats/pwc-current.json
index 90f5906630..69ed1c599f 100644
--- a/stats/pwc-current.json
+++ b/stats/pwc-current.json
@@ -1,9 +1,51 @@
 {
+   "series" : [
+      {
+         "name" : "The Weekly Challenge - 143",
+         "colorByPoint" : 1,
+         "data" : [
+            {
+               "drilldown" : "Mohammad S Anwar",
+               "y" : 1,
+               "name" : "Mohammad S Anwar"
+            },
+            {
+               "name" : "Olivier Delouya",
+               "y" : 1,
+               "drilldown" : "Olivier Delouya"
+            },
+            {
+               "name" : "Roger Bell_West",
+               "y" : 4,
+               "drilldown" : "Roger Bell_West"
+            }
+         ]
+      }
+   ],
+   "legend" : {
+      "enabled" : 0
+   },
+   "xAxis" : {
+      "type" : "category"
+   },
+   "title" : {
+      "text" : "The Weekly Challenge - 143"
+   },
    "drilldown" : {
       "series" : [
          {
-            "name" : "Mohammad S Anwar",
             "id" : "Mohammad S Anwar",
+            "name" : "Mohammad S Anwar",
+            "data" : [
+               [
+                  "Perl",
+                  1
+               ]
+            ]
+         },
+         {
+            "name" : "Olivier Delouya",
+            "id" : "Olivier Delouya",
             "data" : [
                [
                   "Perl",
@@ -22,42 +64,21 @@
                   2
                ]
             ],
-            "id" : "Roger Bell_West",
-            "name" : "Roger Bell_West"
+            "name" : "Roger Bell_West",
+            "id" : "Roger Bell_West"
          }
       ]
    },
-   "subtitle" : {
-      "text" : "[Champions: 2] Last updated at 2021-12-13 11:04:44 GMT"
+   "chart" : {
+      "type" : "column"
    },
-   "legend" : {
-      "enabled" : 0
+   "subtitle" : {
+      "text" : "[Champions: 3] Last updated at 2021-12-13 17:47:01 GMT"
    },
    "tooltip" : {
-      "followPointer" : 1,
+      "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/>",
-      "headerFormat" : "<span style='font-size:11px'>{series.name}</span><br/>"
-   },
-   "series" : [
-      {
-         "data" : [
-            {
-               "drilldown" : "Mohammad S Anwar",
-               "y" : 1,
-               "name" : "Mohammad S Anwar"
-            },
-            {
-               "y" : 4,
-               "name" : "Roger Bell_West",
-               "drilldown" : "Roger Bell_West"
-            }
-         ],
-         "colorByPoint" : 1,
-         "name" : "The Weekly Challenge - 143"
-      }
-   ],
-   "chart" : {
-      "type" : "column"
+      "followPointer" : 1
    },
    "plotOptions" : {
       "series" : {
@@ -72,11 +93,5 @@
       "title" : {
          "text" : "Total Solutions"
       }
-   },
-   "title" : {
-      "text" : "The Weekly Challenge - 143"
-   },
-   "xAxis" : {
-      "type" : "category"
    }
 }
diff --git a/stats/pwc-language-breakdown-summary.json b/stats/pwc-language-breakdown-summary.json
index 7a5a78b179..79632a2bd0 100644
--- a/stats/pwc-language-breakdown-summary.json
+++ b/stats/pwc-language-breakdown-summary.json
@@ -1,45 +1,49 @@
 {
+   "tooltip" : {
+      "pointFormat" : "<b>{point.y:.0f}</b>"
+   },
+   "subtitle" : {
+      "text" : "Last updated at 2021-12-13 17:47:01 GMT"
+   },
+   "chart" : {
+      "type" : "column"
+   },
    "yAxis" : {
       "min" : 0,
       "title" : {
          "text" : null
       }
    },
-   "chart" : {
-      "type" : "column"
-   },
    "title" : {
       "text" : "The Weekly Challenge Contributions [2019 - 2021]"
    },
    "xAxis" : {
+      "type" : "category",
       "labels" : {
          "style" : {
-            "fontSize" : "13px",
-            "fontFamily" : "Verdana, sans-serif"
+            "fontFamily" : "Verdana, sans-serif",
+            "fontSize" : "13px"
          }
-      },
-      "type" : "category"
+      }
    },
    "legend" : {
       "enabled" : "false"
    },
-   "tooltip" : {
-      "pointFormat" : "<b>{point.y:.0f}</b>"
-   },
    "series" : [
       {
          "dataLabels" : {
             "color" : "#FFFFFF",
             "enabled" : "true",
-            "y" : 10,
             "format" : "{point.y:.0f}",
+            "rotation" : -90,
+            "y" : 10,
             "align" : "right",
             "style" : {
                "fontSize" : "13px",
                "fontFamily" : "Verdana, sans-serif"
-            },
-            "rotation" : -90
+            }
          },
+         "name" : "Contributions",
          "data" : [
             [
                "Blog",
@@ -47,17 +51,13 @@
             ],
             [
                "Perl",
-               6855
+               6856
             ],
             [
                "Raku",
                4151
             ]
-         ],
-         "name" : "Contributions"
+         ]
       }
-   ],
-   "subtitle" : {
-      "text" : "Last updated at 2021-12-13 11:04:44 GMT"
-   }
+   ]
 }
diff --git a/stats/pwc-language-breakdown.json b/stats/pwc-language-breakdown.json
index cfb6a7b520..bbe052a077 100644
--- a/stats/pwc-language-breakdown.json
+++ b/stats/pwc-language-breakdown.json
@@ -1,4 +1,26 @@
 {
+   "plotOptions" : {
+      "series" : {
+         "dataLabels" : {
+            "format" : "{point.y}",
+            "enabled" : 1
+         },
+         "borderWidth" : 0
+      }
+   },
+   "yAxis" : {
+      "title" : {
+         "text" : "Total Solutions"
+      }
+   },
+   "tooltip" : {
+      "followPointer" : "true",
+      "pointFormat" : "<span style=\"color:{point.color}\">Challenge {point.name}</span>: <b>{point.y:f}</b><br/>",
+      "headerFormat" : "<span style=\"font-size:11px\"></span>"
+   },
+   "subtitle" : {
+      "text" : "Click the columns to drilldown the language breakdown. Last updated at 2021-12-13 17:47:01 GMT"
+   },
    "drilldown" : {
       "series" : [
          {
@@ -16,12 +38,10 @@
                   11
                ]
             ],
-            "id" : "001",
-            "name" : "001"
+            "name" : "001",
+            "id" : "001"
          },
          {
-            "id" : "002",
-            "name" : "002",
             "data" : [
                [
                   "Perl",
@@ -35,9 +55,13 @@
                   "Blog",
                   10
                ]
-            ]
+            ],
+            "id" : "002",
+            "name" : "002"
          },
          {
+            "name" : "003",
+            "id" : "003",
             "data" : [
                [
                   "Perl",
@@ -51,9 +75,7 @@
                   "Blog",
                   9
                ]
-            ],
-            "name" : "003",
-            "id" : "003"
+            ]
          },
          {
             "data" : [
@@ -74,6 +96,8 @@
             "id" : "004"
          },
          {
+            "name" : "005",
+            "id" : "005",
             "data" : [
                [
                   "Perl",
@@ -87,9 +111,7 @@
                   "Blog",
                   12
                ]
-            ],
-            "id" : "005",
-            "name" : "005"
+            ]
          },
          {
             "data" : [
@@ -106,8 +128,8 @@
                   7
                ]
             ],
-            "id" : "006",
-            "name" : "006"
+            "name" : "006",
+            "id" : "006"
          },
          {
             "name" : "007",
@@ -128,8 +150,6 @@
             ]
          },
          {
-            "id" : "008",
-            "name" : "008",
             "data" : [
                [
                   "Perl",
@@ -143,9 +163,13 @@
                   "Blog",
                   12
                ]
-            ]
+            ],
+            "id" : "008",
+            "name" : "008"
          },
          {
+            "id" : "009",
+            "name" : "009",
             "data" : [
                [
                   "Perl",
@@ -159,9 +183,7 @@
                   "Blog",
                   13
                ]
-            ],
-            "id" : "009",
-            "name" : "009"
+            ]
          },
          {
             "name" : "010",
@@ -182,6 +204,8 @@
             ]
          },
          {
+            "id" : "011",
+            "name" : "011",
             "data" : [
                [
                   "Perl",
@@ -195,13 +219,9 @@
                   "Blog",
                   10
                ]
-            ],
-            "id" : "011",
-            "name" : "011"
+            ]
          },
          {
-            "name" : "012",
-            "id" : "012",
             "data" : [
                [
                   "Perl",
@@ -215,11 +235,13 @@
                   "Blog",
                   11
                ]
-            ]
+            ],
+            "name" : "012",
+            "id" : "012"
          },
          {
-            "name" : "013",
             "id" : "013",
+            "name" : "013",
             "data" : [
                [
                   "Perl",
@@ -236,6 +258,8 @@
             ]
          },
          {
+            "id" : "014",
+            "name" : "014",
             "data" : [
                [
                   "Perl",
@@ -249,9 +273,7 @@
                   "Blog",
                   15
                ]
-            ],
-            "name" : "014",
-            "id" : "014"
+            ]
          },
          {
             "name" : "015",
@@ -272,6 +294,8 @@
             ]
          },
          {
+            "id" : "016",
+            "name" : "016",
             "data" : [
                [
                   "Perl",
@@ -285,9 +309,7 @@
                   "Blog",
                   12
                ]
-            ],
-            "id" : "016",
-            "name" : "016"
+            ]
          },
          {
             "data" : [
@@ -304,12 +326,12 @@
                   12
                ]
             ],
-            "name" : "017",
-            "id" : "017"
+            "id" : "017",
+            "name" : "017"
          },
          {
-            "name" : "018",
             "id" : "018",
+            "name" : "018",
             "data" : [
                [
                   "Perl",
@@ -344,8 +366,6 @@
             "name" : "019"
          },
          {
-            "name" : "020",
-            "id" : "020",
             "data" : [
                [
                   "Perl",
@@ -359,11 +379,13 @@
                   "Blog",
                   13
                ]
-            ]
+            ],
+            "name" : "020",
+            "id" : "020"
          },
          {
-            "name" : "021",
             "id" : "021",
+            "name" : "021",
             "data" : [
                [
                   "Perl",
@@ -380,6 +402,8 @@
             ]
          },
          {
+            "id" : "022",
+            "name" : "022",
             "data" : [
                [
                   "Perl",
@@ -393,9 +417,7 @@
                   "Blog",
                   10
                ]
-            ],
-            "name" : "022",
-            "id" : "022"
+            ]
          },
          {
             "data" : [
@@ -412,8 +434,8 @@
                   12
                ]
             ],
-            "name" : "023",
-            "id" : "023"
+            "id" : "023",
+            "name" : "023"
          },
          {
             "data" : [
@@ -452,8 +474,8 @@
             "name" : "025"
          },
          {
-            "name" : "026",
             "id" : "026",
+            "name" : "026",
             "data" : [
                [
                   "Perl",
@@ -506,8 +528,8 @@
             ]
          },
          {
-            "id" : "029",
             "name" : "029",
+            "id" : "029",
             "data" : [
                [
                   "Perl",
@@ -524,6 +546,8 @@
             ]
          },
          {
+            "id" : "030",
+            "name" : "030",
             "data" : [
                [
                   "Perl",
@@ -537,9 +561,7 @@
                   "Blog",
                   10
                ]
-            ],
-            "id" : "030",
-            "name" : "030"
+            ]
          },
          {
             "data" : [
@@ -592,8 +614,8 @@
                   10
                ]
             ],
-            "name" : "033",
-            "id" : "033"
+            "id" : "033",
+            "name" : "033"
          },
          {
             "name" : "034",
@@ -632,8 +654,6 @@
             ]
          },
          {
-            "name" : "036",
-            "id" : "036",
             "data" : [
                [
                   "Perl",
@@ -647,7 +667,9 @@
                   "Blog",
                   11
                ]
-            ]
+            ],
+            "name" : "036",
+            "id" : "036"
          },
          {
             "name" : "037",
@@ -668,6 +690,8 @@
             ]
          },
          {
+            "name" : "038",
+            "id" : "038",
             "data" : [
                [
                   "Perl",
@@ -681,13 +705,11 @@
                   "Blog",
                   12
                ]
-            ],
-            "id" : "038",
-            "name" : "038"
+            ]
          },
          {
-            "name" : "039",
             "id" : "039",
+            "name" : "039",
             "data" : [
                [
                   "Perl",
@@ -704,8 +726,6 @@
             ]
          },
          {
-            "id" : "040",
-            "name" : "040",
             "data" : [
                [
                   "Perl",
@@ -719,9 +739,13 @@
                   "Blog",
                   10
                ]
-            ]
+            ],
+            "id" : "040",
+            "name" : "040"
          },
          {
+            "id" : "041",
+            "name" : "041",
             "data" : [
                [
                   "Perl",
@@ -735,13 +759,11 @@
                   "Blog",
                   9
                ]
-            ],
-            "id" : "041",
-            "name" : "041"
+            ]
          },
          {
-            "name" : "042",
             "id" : "042",
+            "name" : "042",
             "data" : [
                [
                   "Perl",
@@ -758,6 +780,8 @@
             ]
          },
          {
+            "id" : "043",
+            "name" : "043",
             "data" : [
                [
                   "Perl",
@@ -771,9 +795,7 @@
                   "Blog",
                   11
                ]
-            ],
-            "id" : "043",
-            "name" : "043"
+            ]
          },
          {
             "data" : [
@@ -794,6 +816,8 @@
             "id" : "044"
          },
          {
+            "id" : "045",
+            "name" : "045",
             "data" : [
                [
                   "Perl",
@@ -807,13 +831,9 @@
                   "Blog",
                   11
                ]
-            ],
-            "name" : "045",
-            "id" : "045"
+            ]
          },
          {
-            "name" : "046",
-            "id" : "046",
             "data" : [
                [
                   "Perl",
@@ -827,11 +847,13 @@
                   "Blog",
                   10
                ]
-            ]
+            ],
+            "name" : "046",
+            "id" : "046"
          },
          {
-            "id" : "047",
             "name" : "047",
+            "id" : "047",
             "data" : [
                [
                   "Perl",
@@ -866,8 +888,6 @@
             "name" : "048"
          },
          {
-            "id" : "049",
-            "name" : "049",
             "data" : [
                [
                   "Perl",
@@ -881,11 +901,11 @@
                   "Blog",
                   12
                ]
-            ]
+            ],
+            "id" : "049",
+            "name" : "049"
          },
          {
-            "name" : "050",
-            "id" : "050",
             "data" : [
                [
                   "Perl",
@@ -899,11 +919,11 @@
                   "Blog",
                   12
                ]
-            ]
+            ],
+            "name" : "050",
+            "id" : "050"
          },
          {
-            "id" : "051",
-            "name" : "051",
             "data" : [
                [
                   "Perl",
@@ -917,11 +937,11 @@
                   "Blog",
                   11
                ]
-            ]
+            ],
+            "id" : "051",
+            "name" : "051"
          },
          {
-            "name" : "052",
-            "id" : "052",
             "data" : [
                [
                   "Perl",
@@ -935,11 +955,13 @@
                   "Blog",
                   14
                ]
-            ]
+            ],
+            "id" : "052",
+            "name" : "052"
          },
          {
-            "id" : "053",
             "name" : "053",
+            "id" : "053",
             "data" : [
                [
                   "Perl",
@@ -956,6 +978,8 @@
             ]
          },
          {
+            "name" : "054",
+            "id" : "054",
             "data" : [
                [
                   "Perl",
@@ -969,13 +993,9 @@
                   "Blog",
                   18
                ]
-            ],
-            "name" : "054",
-            "id" : "054"
+            ]
          },
          {
-            "id" : "055",
-            "name" : "055",
             "data" : [
                [
                   "Perl",
@@ -989,11 +1009,11 @@
                   "Blog",
                   14
                ]
-            ]
+            ],
+            "id" : "055",
+            "name" : "055"
          },
          {
-            "id" : "056",
-            "name" : "056",
             "data" : [
                [
                   "Perl",
@@ -1007,9 +1027,13 @@
                   "Blog",
                   16
                ]
-            ]
+            ],
+            "name" : "056",
+            "id" : "056"
          },
          {
+            "name" : "057",
+            "id" : "057",
             "data" : [
                [
                   "Perl",
@@ -1023,9 +1047,7 @@
                   "Blog",
                   15
                ]
-            ],
-            "name" : "057",
-            "id" : "057"
+            ]
          },
          {
             "data" : [
@@ -1100,8 +1122,8 @@
             ]
          },
          {
-            "id" : "062",
             "name" : "062",
+            "id" : "062",
             "data" : [
                [
                   "Perl",
@@ -1172,8 +1194,6 @@
             "name" : "065"
          },
          {
-            "id" : "066",
-            "name" : "066",
             "data" : [
                [
                   "Perl",
@@ -1187,9 +1207,13 @@
                   "Blog",
                   14
                ]
-            ]
+            ],
+            "name" : "066",
+            "id" : "066"
          },
          {
+            "name" : "067",
+            "id" : "067",
             "data" : [
                [
                   "Perl",
@@ -1203,13 +1227,9 @@
                   "Blog",
                   18
                ]
-            ],
-            "id" : "067",
-            "name" : "067"
+            ]
          },
          {
-            "id" : "068",
-            "name" : "068",
             "data" : [
                [
                   "Perl",
@@ -1223,11 +1243,13 @@
                   "Blog",
                   13
                ]
-            ]
+            ],
+            "id" : "068",
+            "name" : "068"
          },
          {
-            "id" : "069",
             "name" : "069",
+            "id" : "069",
             "data" : [
                [
                   "Perl",
@@ -1244,8 +1266,8 @@
             ]
          },
          {
-            "id" : "070",
             "name" : "070",
+            "id" : "070",
             "data" : [
                [
                   "Perl",
@@ -1276,12 +1298,10 @@
                   15
                ]
             ],
-            "id" : "071",
-            "name" : "071"
+            "name" : "071",
+            "id" : "071"
          },
          {
-            "name" : "072",
-            "id" : "072",
             "data" : [
                [
                   "Perl",
@@ -1295,11 +1315,13 @@
                   "Blog",
                   19
                ]
-            ]
+            ],
+            "id" : "072",
+            "name" : "072"
          },
          {
-            "id" : "073",
             "name" : "073",
+            "id" : "073",
             "data" : [
                [
                   "Perl",
@@ -1316,8 +1338,6 @@
             ]
          },
          {
-            "id" : "074",
-            "name" : "074",
             "data" : [
                [
                   "Perl",
@@ -1331,7 +1351,9 @@
                   "Blog",
                   20
                ]
-            ]
+            ],
+            "id" : "074",
+            "name" : "074"
          },
          {
             "id" : "075",
@@ -1388,6 +1410,8 @@
             ]
          },
          {
+            "name" : "078",
+            "id" : "078",
             "data" : [
                [
                   "Perl",
@@ -1401,9 +1425,7 @@
                   "Blog",
                   18
                ]
-            ],
-            "name" : "078",
-            "id" : "078"
+            ]
          },
          {
             "name" : "079",
@@ -1442,8 +1464,6 @@
             "name" : "080"
          },
          {
-            "id" : "081",
-            "name" : "081",
             "data" : [
                [
                   "Perl",
@@ -1457,7 +1477,9 @@
                   "Blog",
                   15
                ]
-            ]
+            ],
+            "id" : "081",
+            "name" : "081"
          },
          {
             "name" : "082",
@@ -1478,6 +1500,8 @@
             ]
          },
          {
+            "name" : "083",
+            "id" : "083",
             "data" : [
                [
                   "Perl",
@@ -1491,9 +1515,7 @@
                   "Blog",
                   16
                ]
-            ],
-            "name" : "083",
-            "id" : "083"
+            ]
          },
          {
             "data" : [
@@ -1510,12 +1532,10 @@
                   12
                ]
             ],
-            "name" : "084",
-            "id" : "084"
+            "id" : "084",
+            "name" : "084"
          },
          {
-            "name" : "085",
-            "id" : "085",
             "data" : [
                [
                   "Perl",
@@ -1529,7 +1549,9 @@
                   "Blog",
                   18
                ]
-            ]
+            ],
+            "id" : "085",
+            "name" : "085"
          },
          {
             "name" : "086",
@@ -1568,8 +1590,6 @@
             "name" : "087"
          },
          {
-            "name" : "088",
-            "id" : "088",
             "data" : [
                [
                   "Perl",
@@ -1583,9 +1603,13 @@
                   "Blog",
                   20
                ]
-            ]
+            ],
+            "id" : "088",
+            "name" : "088"
          },
          {
+            "name" : "089",
+            "id" : "089",
             "data" : [
                [
                   "Perl",
@@ -1599,13 +1623,9 @@
                   "Blog",
                   20
                ]
-            ],
-            "id" : "089",
-            "name" : "089"
+            ]
          },
          {
-            "id" : "090",
-            "name" : "090",
             "data" : [
                [
                   "Perl",
@@ -1619,7 +1639,9 @@
                   "Blog",
                   17
                ]
-            ]
+            ],
+            "name" : "090",
+            "id" : "090"
          },
          {
             "data" : [
@@ -1640,8 +1662,8 @@
             "id" : "091"
          },
          {
-            "name" : "092",
             "id" : "092",
+            "name" : "092",
             "data" : [
                [
                   "Perl",
@@ -1676,8 +1698,6 @@
             ]
          },
          {
-            "id" : "094",
-            "name" : "094",
             "data" : [
                [
                   "Perl",
@@ -1691,11 +1711,11 @@
                   "Blog",
                   17
                ]
-            ]
+            ],
+            "id" : "094",
+            "name" : "094"
          },
          {
-            "id" : "095",
-            "name" : "095",
             "data" : [
                [
                   "Perl",
@@ -1709,7 +1729,9 @@
                   "Blog",
                   19
                ]
-            ]
+            ],
+            "name" : "095",
+            "id" : "095"
          },
          {
             "data" : [
@@ -1730,8 +1752,6 @@
             "id" : "096"
          },
          {
-            "name" : "097",
-            "id" : "097",
             "data" : [
                [
                   "Perl",
@@ -1745,9 +1765,13 @@
                   "Blog",
                   19
                ]
-            ]
+            ],
+            "name" : "097",
+