- Added solutions by Cheok-Yin Fung.

1 files changed, 902 insertions, 902 deletions

diff --git a/stats/pwc-language-breakdown.json b/stats/pwc-language-breakdown.json
index 8a5877d2d4..5898c5f297 100644
--- a/stats/pwc-language-breakdown.json
+++ b/stats/pwc-language-breakdown.json
@@ -1,665 +1,7 @@
 {
-   "series" : [
-      {
-         "data" : [
-            {
-               "drilldown" : "001",
-               "y" : 161,
-               "name" : "#001"
-            },
-            {
-               "name" : "#002",
-               "y" : 125,
-               "drilldown" : "002"
-            },
-            {
-               "drilldown" : "003",
-               "name" : "#003",
-               "y" : 81
-            },
-            {
-               "name" : "#004",
-               "y" : 99,
-               "drilldown" : "004"
-            },
-            {
-               "name" : "#005",
-               "y" : 78,
-               "drilldown" : "005"
-            },
-            {
-               "y" : 58,
-               "name" : "#006",
-               "drilldown" : "006"
-            },
-            {
-               "name" : "#007",
-               "y" : 64,
-               "drilldown" : "007"
-            },
-            {
-               "y" : 78,
-               "name" : "#008",
-               "drilldown" : "008"
-            },
-            {
-               "y" : 76,
-               "name" : "#009",
-               "drilldown" : "009"
-            },
-            {
-               "y" : 65,
-               "name" : "#010",
-               "drilldown" : "010"
-            },
-            {
-               "drilldown" : "011",
-               "y" : 85,
-               "name" : "#011"
-            },
-            {
-               "y" : 89,
-               "name" : "#012",
-               "drilldown" : "012"
-            },
-            {
-               "y" : 85,
-               "name" : "#013",
-               "drilldown" : "013"
-            },
-            {
-               "drilldown" : "014",
-               "name" : "#014",
-               "y" : 101
-            },
-            {
-               "name" : "#015",
-               "y" : 99,
-               "drilldown" : "015"
-            },
-            {
-               "drilldown" : "016",
-               "name" : "#016",
-               "y" : 71
-            },
-            {
-               "drilldown" : "017",
-               "name" : "#017",
-               "y" : 84
-            },
-            {
-               "y" : 81,
-               "name" : "#018",
-               "drilldown" : "018"
-            },
-            {
-               "drilldown" : "019",
-               "y" : 103,
-               "name" : "#019"
-            },
-            {
-               "drilldown" : "020",
-               "y" : 101,
-               "name" : "#020"
-            },
-            {
-               "drilldown" : "021",
-               "y" : 72,
-               "name" : "#021"
-            },
-            {
-               "y" : 68,
-               "name" : "#022",
-               "drilldown" : "022"
-            },
-            {
-               "y" : 97,
-               "name" : "#023",
-               "drilldown" : "023"
-            },
-            {
-               "y" : 75,
-               "name" : "#024",
-               "drilldown" : "024"
-            },
-            {
-               "drilldown" : "025",
-               "name" : "#025",
-               "y" : 59
-            },
-            {
-               "name" : "#026",
-               "y" : 74,
-               "drilldown" : "026"
-            },
-            {
-               "drilldown" : "027",
-               "y" : 60,
-               "name" : "#027"
-            },
-            {
-               "drilldown" : "028",
-               "y" : 80,
-               "name" : "#028"
-            },
-            {
-               "y" : 79,
-               "name" : "#029",
-               "drilldown" : "029"
-            },
-            {
-               "drilldown" : "030",
-               "y" : 117,
-               "name" : "#030"
-            },
-            {
-               "drilldown" : "031",
-               "name" : "#031",
-               "y" : 89
-            },
-            {
-               "y" : 94,
-               "name" : "#032",
-               "drilldown" : "032"
-            },
-            {
-               "y" : 110,
-               "name" : "#033",
-               "drilldown" : "033"
-            },
-            {
-               "name" : "#034",
-               "y" : 64,
-               "drilldown" : "034"
-            },
-            {
-               "drilldown" : "035",
-               "y" : 64,
-               "name" : "#035"
-            },
-            {
-               "name" : "#036",
-               "y" : 68,
-               "drilldown" : "036"
-            },
-            {
-               "drilldown" : "037",
-               "y" : 67,
-               "name" : "#037"
-            },
-            {
-               "drilldown" : "038",
-               "y" : 68,
-               "name" : "#038"
-            },
-            {
-               "name" : "#039",
-               "y" : 62,
-               "drilldown" : "039"
-            },
-            {
-               "y" : 73,
-               "name" : "#040",
-               "drilldown" : "040"
-            },
-            {
-               "name" : "#041",
-               "y" : 76,
-               "drilldown" : "041"
-            },
-            {
-               "name" : "#042",
-               "y" : 92,
-               "drilldown" : "042"
-            },
-            {
-               "drilldown" : "043",
-               "y" : 68,
-               "name" : "#043"
-            },
-            {
-               "drilldown" : "044",
-               "name" : "#044",
-               "y" : 85
-            },
-            {
-               "y" : 96,
-               "name" : "#045",
-               "drilldown" : "045"
-            },
-            {
-               "drilldown" : "046",
-               "y" : 87,
-               "name" : "#046"
-            },
-            {
-               "drilldown" : "047",
-               "name" : "#047",
-               "y" : 84
-            },
-            {
-               "drilldown" : "048",
-               "name" : "#048",
-               "y" : 108
-            },
-            {
-               "drilldown" : "049",
-               "name" : "#049",
-               "y" : 89
-            },
-            {
-               "y" : 98,
-               "name" : "#050",
-               "drilldown" : "050"
-            },
-            {
-               "drilldown" : "051",
-               "name" : "#051",
-               "y" : 89
-            },
-            {
-               "drilldown" : "052",
-               "name" : "#052",
-               "y" : 91
-            },
-            {
-               "drilldown" : "053",
-               "y" : 101,
-               "name" : "#053"
-            },
-            {
-               "drilldown" : "054",
-               "name" : "#054",
-               "y" : 103
-            },
-            {
-               "y" : 88,
-               "name" : "#055",
-               "drilldown" : "055"
-            },
-            {
-               "name" : "#056",
-               "y" : 95,
-               "drilldown" : "056"
-            },
-            {
-               "drilldown" : "057",
-               "y" : 80,
-               "name" : "#057"
-            },
-            {
-               "drilldown" : "058",
-               "name" : "#058",
-               "y" : 69
-            },
-            {
-               "y" : 89,
-               "name" : "#059",
-               "drilldown" : "059"
-            },
-            {
-               "name" : "#060",
-               "y" : 85,
-               "drilldown" : "060"
-            },
-            {
-               "drilldown" : "061",
-               "name" : "#061",
-               "y" : 81
-            },
-            {
-               "y" : 58,
-               "name" : "#062",
-               "drilldown" : "062"
-            },
-            {
-               "drilldown" : "063",
-               "y" : 89,
-               "name" : "#063"
-            },
-            {
-               "drilldown" : "064",
-               "name" : "#064",
-               "y" : 80
-            },
-            {
-               "y" : 73,
-               "name" : "#065",
-               "drilldown" : "065"
-            },
-            {
-               "drilldown" : "066",
-               "name" : "#066",
-               "y" : 84
-            },
-            {
-               "name" : "#067",
-               "y" : 90,
-               "drilldown" : "067"
-            },
-            {
-               "drilldown" : "068",
-               "name" : "#068",
-               "y" : 75
-            },
-            {
-               "name" : "#069",
-               "y" : 83,
-               "drilldown" : "069"
-            },
-            {
-               "drilldown" : "070",
-               "y" : 93,
-               "name" : "#070"
-            },
-            {
-               "drilldown" : "071",
-               "name" : "#071",
-               "y" : 78
-            },
-            {
-               "drilldown" : "072",
-               "y" : 112,
-               "name" : "#072"
-            },
-            {
-               "y" : 110,
-               "name" : "#073",
-               "drilldown" : "073"
-            },
-            {
-               "drilldown" : "074",
-               "y" : 115,
-               "name" : "#074"
-            },
-            {
-               "drilldown" : "075",
-               "y" : 115,
-               "name" : "#075"
-            },
-            {
-               "y" : 99,
-               "name" : "#076",
-               "drilldown" : "076"
-            },
-            {
-               "drilldown" : "077",
-               "y" : 98,
-               "name" : "#077"
-            },
-            {
-               "name" : "#078",
-               "y" : 127,
-               "drilldown" : "078"
-            },
-            {
-               "drilldown" : "079",
-               "name" : "#079",
-               "y" : 122
-            },
-            {
-               "drilldown" : "080",
-               "name" : "#080",
-               "y" : 127
-            },
-            {
-               "drilldown" : "081",
-               "name" : "#081",
-               "y" : 114
-            },
-            {
-               "drilldown" : "082",
-               "y" : 114,
-               "name" : "#082"
-            },
-            {
-               "drilldown" : "083",
-               "y" : 127,
-               "name" : "#083"
-            },
-            {
-               "drilldown" : "084",
-               "y" : 119,
-               "name" : "#084"
-            },
-            {
-               "y" : 114,
-               "name" : "#085",
-               "drilldown" : "085"
-            },
-            {
-               "y" : 104,
-               "name" : "#086",
-               "drilldown" : "086"
-            },
-            {
-               "drilldown" : "087",
-               "y" : 101,
-               "name" : "#087"
-            },
-            {
-               "drilldown" : "088",
-               "y" : 121,
-               "name" : "#088"
-            },
-            {
-               "drilldown" : "089",
-               "name" : "#089",
-               "y" : 113
-            },
-            {
-               "drilldown" : "090",
-               "name" : "#090",
-               "y" : 113
-            },
-            {
-               "y" : 108,
-               "name" : "#091",
-               "drilldown" : "091"
-            },
-            {
-               "drilldown" : "092",
-               "y" : 98,
-               "name" : "#092"
-            },
-            {
-               "drilldown" : "093",
-               "y" : 87,
-               "name" : "#093"
-            },
-            {
-               "y" : 87,
-               "name" : "#094",
-               "drilldown" : "094"
-            },
-            {
-               "name" : "#095",
-               "y" : 108,
-               "drilldown" : "095"
-            },
-            {
-               "drilldown" : "096",
-               "y" : 108,
-               "name" : "#096"
-            },
-            {
-               "y" : 111,
-               "name" : "#097",
-               "drilldown" : "097"
-            },
-            {
-               "drilldown" : "098",
-               "name" : "#098",
-               "y" : 108
-            },
-            {
-               "y" : 97,
-               "name" : "#099",
-               "drilldown" : "099"
-            },
-            {
-               "drilldown" : "100",
-               "name" : "#100",
-               "y" : 120
-            },
-            {
-               "y" : 83,
-               "name" : "#101",
-               "drilldown" : "101"
-            },
-            {
-               "drilldown" : "102",
-               "y" : 90,
-               "name" : "#102"
-            },
-            {
-               "drilldown" : "103",
-               "name" : "#103",
-               "y" : 79
-            },
-            {
-               "y" : 85,
-               "name" : "#104",
-               "drilldown" : "104"
-            },
-            {
-               "name" : "#105",
-               "y" : 75,
-               "drilldown" : "105"
-            },
-            {
-               "drilldown" : "106",
-               "name" : "#106",
-               "y" : 97
-            },
-            {
-               "drilldown" : "107",
-               "y" : 90,
-               "name" : "#107"
-            },
-            {
-               "name" : "#108",
-               "y" : 94,
-               "drilldown" : "108"
-            },
-            {
-               "y" : 107,
-               "name" : "#109",
-               "drilldown" : "109"
-            },
-            {
-               "drilldown" : "110",
-               "y" : 108,
-               "name" : "#110"
-            },
-            {
-               "name" : "#111",
-               "y" : 91,
-               "drilldown" : "111"
-            },
-            {
-               "name" : "#112",
-               "y" : 92,
-               "drilldown" : "112"
-            },
-            {
-               "name" : "#113",
-               "y" : 92,
-               "drilldown" : "113"
-            },
-            {
-               "y" : 108,
-               "name" : "#114",
-               "drilldown" : "114"
-            },
-            {
-               "name" : "#115",
-               "y" : 96,
-               "drilldown" : "115"
-            },
-            {
-               "name" : "#116",
-               "y" : 95,
-               "drilldown" : "116"
-            },
-            {
-               "drilldown" : "117",
-               "y" : 97,
-               "name" : "#117"
-            },
-            {
-               "name" : "#118",
-               "y" : 81,
-               "drilldown" : "118"
-            },
-            {
-               "y" : 123,
-               "name" : "#119",
-               "drilldown" : "119"
-            },
-            {
-               "name" : "#120",
-               "y" : 114,
-               "drilldown" : "120"
-            },
-            {
-               "y" : 90,
-               "name" : "#121",
-               "drilldown" : "121"
-            },
-            {
-               "drilldown" : "122",
-               "name" : "#122",
-               "y" : 106
-            },
-            {
-               "y" : 101,
-               "name" : "#123",
-               "drilldown" : "123"
-            },
-            {
-               "drilldown" : "124",
-               "name" : "#124",
-               "y" : 81
-            },
-            {
-               "drilldown" : "125",
-               "name" : "#125",
-               "y" : 61
-            },
-            {
-               "drilldown" : "126",
-               "y" : 66,
-               "name" : "#126"
-            }
-         ],
-         "name" : "The Weekly Challenge Languages",
-         "colorByPoint" : "true"
-      }
-   ],
-   "tooltip" : {
-      "headerFormat" : "<span style=\"font-size:11px\"></span>",
-      "pointFormat" : "<span style=\"color:{point.color}\">Challenge {point.name}</span>: <b>{point.y:f}</b><br/>",
-      "followPointer" : "true"
-   },
-   "chart" : {
-      "type" : "column"
-   },
-   "yAxis" : {
-      "title" : {
-         "text" : "Total Solutions"
-      }
-   },
-   "subtitle" : {
-      "text" : "Click the columns to drilldown the language breakdown. Last updated at 2021-08-21 00:36:08 GMT"
-   },
-   "legend" : {
-      "enabled" : "false"
-   },
    "drilldown" : {
       "series" : [
          {
-            "name" : "001",
             "data" : [
                [
                   "Perl",
@@ -674,10 +16,12 @@
                   11
                ]
             ],
-            "id" : "001"
+            "id" : "001",
+            "name" : "001"
          },
          {
             "name" : "002",
+            "id" : "002",
             "data" : [
                [
                   "Perl",
@@ -691,12 +35,11 @@
                   "Blog",
                   10
                ]
-            ],
-            "id" : "002"
+            ]
          },
          {
-            "id" : "003",
             "name" : "003",
+            "id" : "003",
             "data" : [
                [
                   "Perl",
@@ -713,7 +56,6 @@
             ]
          },
          {
-            "name" : "004",
             "data" : [
                [
                   "Perl",
@@ -728,10 +70,10 @@
                   10
                ]
             ],
-            "id" : "004"
+            "id" : "004",
+            "name" : "004"
          },
          {
-            "id" : "005",
             "data" : [
                [
                   "Perl",
@@ -746,11 +88,10 @@
                   12
                ]
             ],
+            "id" : "005",
             "name" : "005"
          },
          {
-            "id" : "006",
-            "name" : "006",
             "data" : [
                [
                   "Perl",
@@ -764,7 +105,9 @@
                   "Blog",
                   7
                ]
-            ]
+            ],
+            "id" : "006",
+            "name" : "006"
          },
          {
             "data" : [
@@ -781,11 +124,10 @@
                   10
                ]
             ],
-            "name" : "007",
-            "id" : "007"
+            "id" : "007",
+            "name" : "007"
          },
          {
-            "id" : "008",
             "data" : [
                [
                   "Perl",
@@ -800,6 +142,7 @@
                   12
                ]
             ],
+            "id" : "008",
             "name" : "008"
          },
          {
@@ -839,7 +182,6 @@
             ]
          },
          {
-            "name" : "011",
             "data" : [
                [
                   "Perl",
@@ -854,9 +196,12 @@
                   10
                ]
             ],
-            "id" : "011"
+            "id" : "011",
+            "name" : "011"
          },
          {
+            "name" : "012",
+            "id" : "012",
             "data" : [
                [
                   "Perl",
@@ -870,11 +215,11 @@
                   "Blog",
                   11
                ]
-            ],
-            "name" : "012",
-            "id" : "012"
+            ]
          },
          {
+            "id" : "013",
+            "name" : "013",
             "data" : [
                [
                   "Perl",
@@ -888,13 +233,9 @@
                   "Blog",
                   13
                ]
-            ],
-            "name" : "013",
-            "id" : "013"
+            ]
          },
          {
-            "id" : "014",
-            "name" : "014",
             "data" : [
                [
                   "Perl",
@@ -908,9 +249,12 @@
                   "Blog",
                   15
                ]
-            ]
+            ],
+            "name" : "014",
+            "id" : "014"
          },
          {
+            "id" : "015",
             "name" : "015",
             "data" : [
                [
@@ -925,12 +269,9 @@
                   "Blog",
                   15
                ]
-            ],
-            "id" : "015"
+            ]
          },
          {
-            "id" : "016",
-            "name" : "016",
             "data" : [
                [
                   "Perl",
@@ -944,10 +285,11 @@
                   "Blog",
                   12
                ]
-            ]
+            ],
+            "id" : "016",
+            "name" : "016"
          },
          {
-            "id" : "017",
             "data" : [
                [
                   "Perl",
@@ -962,9 +304,12 @@
                   12
                ]
             ],
-            "name" : "017"
+            "name" : "017",
+            "id" : "017"
          },
          {
+            "id" : "018",
+            "name" : "018",
             "data" : [
                [
                   "Perl",
@@ -978,9 +323,7 @@
                   "Blog",
                   14
                ]
-            ],
-            "name" : "018",
-            "id" : "018"
+            ]
          },
          {
             "data" : [
@@ -997,10 +340,11 @@
                   13
                ]
             ],
-            "name" : "019",
-            "id" : "019"
+            "id" : "019",
+            "name" : "019"
          },
          {
+            "id" : "020",
             "name" : "020",
             "data" : [
                [
@@ -1015,12 +359,9 @@
                   "Blog",
                   13
                ]
-            ],
-            "id" : "020"
+            ]
          },
          {
-            "id" : "021",
-            "name" : "021",
             "data" : [
                [
                   "Perl",
@@ -1034,10 +375,11 @@
                   "Blog",
                   10
                ]
-            ]
+            ],
+            "id" : "021",
+            "name" : "021"
          },
          {
-            "id" : "022",
             "data" : [
                [
                   "Perl",
@@ -1052,6 +394,7 @@
                   10
                ]
             ],
+            "id" : "022",
             "name" : "022"
          },
          {
@@ -1069,10 +412,12 @@
                   12
                ]
             ],
-            "name" : "023",
-            "id" : "023"
+            "id" : "023",
+            "name" : "023"
          },
          {
+            "id" : "024",
+            "name" : "024",
             "data" : [
                [
                   "Perl",
@@ -1086,11 +431,10 @@
                   "Blog",
                   11
                ]
-            ],
-            "name" : "024",
-            "id" : "024"
+            ]
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+            "name" : "025",
             "id" : "025",
             "data" : [
                [
@@ -1105,8 +449,7 @@
                   "Blog",
                   12
                ]
-            ],
-            "name" : "025"
+            ]
          },
          {
             "data" : [
@@ -1127,7 +470,6 @@
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          },
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-            "id" : "027",
             "data" : [
                [
                   "Perl",
@@ -1142,10 +484,10 @@
                   9
                ]
             ],
+            "id" : "027",
             "name" : "027"
          },
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-            "id" : "028",
             "data" : [
                [
                   "Perl",
@@ -1160,10 +502,12 @@
                   9
                ]
             ],
-            "name" : "028"
+            "name" : "028",
+            "id" : "028"
          },
          {
             "name" : "029",
+            "id" : "029",
             "data" : [
                [
                   "Perl",
@@ -1177,10 +521,11 @@
                   "Blog",
                   12
                ]
-            ],
-            "id" : "029"
+            ]
          },
          {
+            "name" : "030",
+            "id" : "030",
             "data" : [
                [
                   "Perl",
@@ -1194,11 +539,10 @@
                   "Blog",
                   10
                ]
-            ],
-            "name" : "030",
-            "id" : "030"
+            ]
          },
          {
+            "name" : "031",
             "id" : "031",
             "data" : [
                [
@@ -1213,11 +557,11 @@
                   "Blog",
                   9
                ]
-            ],
-            "name" : "031"
+            ]
          },
          {
             "id" : "032",
+            "name" : "032",
             "data" : [
                [
                   "Perl",
@@ -1231,11 +575,11 @@
                   "Blog",
                   10
                ]
-            ],
-            "name" : "032"
+            ]
          },
          {
             "id" : "033",
+            "name" : "033",
             "data" : [
                [
                   "Perl",
@@ -1249,11 +593,9 @@
                   "Blog",
                   10
                ]
-            ],
-            "name" : "033"
+            ]
          },
          {
-            "name" : "034",
             "data" : [
                [
                   "Perl",
@@ -1268,9 +610,12 @@
                   11
                ]
             ],
-            "id" : "034"
+            "id" : "034",
+            "name" : "034"
          },
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+            "id" : "035",
+            "name" : "035",
             "data" : [
                [
                   "Perl",
@@ -1284,12 +629,9 @@
                   "Blog",
                   9
                ]
-            ],
-            "name" : "035",
-            "id" : "035"
+            ]
          },
          {
-            "name" : "036",
             "data" : [
                [
                   "Perl",
@@ -1304,9 +646,12 @@
                   11
                ]
             ],
+            "name" : "036",
             "id" : "036"
          },
          {
+            "id" : "037",
+            "name" : "037",
             "data" : [
                [
                   "Perl",
@@ -1320,12 +665,9 @@
                   "Blog",
                   9
                ]
-            ],
-            "name" : "037",
-            "id" : "037"
+            ]
          },
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-            "id" : "038",
             "data" : [
                [
                   "Perl",
@@ -1340,10 +682,10 @@
                   12
                ]
             ],
-            "name" : "038"
+            "name" : "038",
+            "id" : "038"
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-            "id" : "039",
             "data" : [
                [
                   "Perl",
@@ -1358,11 +700,10 @@
                   12
                ]
             ],
-            "name" : "039"
+            "name" : "039",
+            "id" : "039"
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-            "id" : "040",
-            "name" : "040",
             "data" : [
                [
                   "Perl",
@@ -1376,10 +717,11 @@
                   "Blog",
                   10
                ]
-            ]
+            ],
+            "name" : "040",
+            "id" : "040"
          },
          {
-            "id" : "041",
             "data" : [
                [
                   "Perl",
@@ -1394,10 +736,10 @@
                   9
                ]
             ],
-            "name" : "041"
+            "name" : "041",
+            "id" : "041"
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-            "id" : "042",
             "data" : [
                [
                   "Perl",
@@ -1412,11 +754,10 @@
                   11
                ]
             ],
-            "name" : "042"
+            "name" : "042",
+            "id" : "042"
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-            "id" : "043",
-            "name" : "043",
             "data" : [
                [
                   "Perl",
@@ -1430,10 +771,13 @@
                   "Blog",
                   11
                ]
-            ]
+            ],
+            "id" : "043",
+            "name" : "043"
          },
          {
             "name" : "044",
+            "id" : "044",
             "data" : [
                [
                   "Perl",
@@ -1447,10 +791,10 @@
                   "Blog",
                   11
                ]
-            ],
-            "id" : "044"
+            ]
          },
          {
+            "name" : "045",
             "id" : "045",
             "data" : [
                [
@@ -1465,11 +809,9 @@
                   "Blog",
                   11
                ]
-            ],
-            "name" : "045"
+            ]
          },
          {
-            "id" : "046",
             "data" : [
                [
                   "Perl",
@@ -1484,9 +826,12 @@
                   10
                ]
             ],
-            "name" : "046"
+            "name" : "046",
+            "id" : "046"
          },
          {
+            "name" : "047",
+            "id" : "047",
             "data" : [
                [
                   "Perl",
@@ -1500,12 +845,11 @@
                   "Blog",
                   10
                ]
-            ],
-            "name" : "047",
-            "id" : "047"
+