Merge pull request #5174 from E7-87-83/newt

Challenge 137

4 files changed, 129 insertions, 0 deletions

diff --git a/challenge-137/cheok-yin-fung/java/LongYear.java b/challenge-137/cheok-yin-fung/java/LongYear.java
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+++ b/challenge-137/cheok-yin-fung/java/LongYear.java
@@ -0,0 +1,42 @@
+// The Weekly Challenge - 137
+// Task 1 Long Year
+// Usage: java LongYear
+
+import java.time.LocalDate;
+import java.time.YearMonth;
+
+public class LongYear
+{
+    public static void main(String[] args)
+    {
+        int c = 0;
+        for(int y = 1900; y <= 2100; y++)
+        {
+            LocalDate fourthJan = LocalDate.of(y, 1, 4);
+            int a = gdow( (fourthJan.getDayOfWeek()).toString() );
+            LocalDate YearLastDay = LocalDate.of(y, 12, 31);
+            int b = gdow( (YearLastDay.getDayOfWeek()).toString() );
+            if (a >= 4 && b >= 4)
+            {
+                System.out.println(y);
+                c++;
+            }
+        }
+        System.out.println("Number of Long Years: " + c);
+    }
+
+    public static int gdow(String a)
+    {
+        switch(a)
+        {
+            case "MONDAY": return 1;
+            case "TUESDAY": return 2;
+            case "WEDNESDAY": return 3;
+            case "THURSDAY": return 4;
+            case "FRIDAY": return 5;
+            case "SATURDAY": return 6;
+            case "SUNDAY": return 7;
+        }
+        return 0;
+    }
+}
diff --git a/challenge-137/cheok-yin-fung/julia/ch-1.jl b/challenge-137/cheok-yin-fung/julia/ch-1.jl
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+++ b/challenge-137/cheok-yin-fung/julia/ch-1.jl
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+# The Weekly Challenge Week 137
+# Task 1 Long Year
+# Usage: include("ch-1.jl")
+
+using Dates
+
+t(y) = Date(y, 1, 4)
+e(y) = Date(y, 12, 31)
+
+global c = 0;
+
+for y = 1900:2100
+    if Dates.week(e(y)) - Dates.week(t(y)) == 52
+        println(y)
+        global c = c+1
+    end
+end
+
+println("Number of Long Years: " , c)
diff --git a/challenge-137/cheok-yin-fung/perl/ch-1.pl b/challenge-137/cheok-yin-fung/perl/ch-1.pl
new file mode 100644
index 0000000000..7324e71726
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+++ b/challenge-137/cheok-yin-fung/perl/ch-1.pl
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+#!/usr/bin/perl
+# The Weekly Challenge 137
+# Task 1 Long Year
+# Usage: ch-1.pl
+use v5.12.0;
+use warnings;
+use Time::Local qw 'timegm_nocheck';
+
+my $c = 0;
+for my $y (1900..2100) {
+    my %wday = (
+        "Mon" => 1, 
+        "Tue" => 2, 
+        "Wed" => 3, 
+        "Thu" => 4, 
+        "Fri" => 5, 
+        "Sat" => 6, 
+        "Sun" => 7, 
+    );
+
+    my $fourthJan = localtime timegm_nocheck 0, 0, 0, 4, 0, $y;
+
+    my $a = $wday{(split " ", $fourthJan)[0]};
+
+    my $yearLastDay = localtime timegm_nocheck 0, 0, 0, 31, 11, $y;
+
+    my $b = $wday{(split " ", $yearLastDay)[0]};
+
+    if ($a >= 4 && $b >= 4) {
+        say $y;
+        $c++;
+    }
+}
+
+say "Number of Long Years: $c";
diff --git a/challenge-137/cheok-yin-fung/perl/ch-2.pl b/challenge-137/cheok-yin-fung/perl/ch-2.pl
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+++ b/challenge-137/cheok-yin-fung/perl/ch-2.pl
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+#!/usr/bin/perl
+# The Weekly Challenge 137
+# Task 2 Lychrel Number
+# Usage: $ ch-2.pl $n
+use v5.12.0;
+use warnings;
+use Test::More tests => 5;
+
+say lych($ARGV[0]) if defined($ARGV[0]);
+
+
+
+sub lych {
+    my $itor = 0;
+    my $num = $_[0];
+
+    while (   (reverse $num) ne $num 
+            && $itor < 500 
+            && $num < 10_000_000 
+          ) {
+        $num = $num + reverse $num;
+    }
+
+    return( ((reverse $num) eq $num )? 0 : 1 );
+}
+
+
+
+ok lych(56) == 0, "Example 1";
+ok lych(57) == 0, "Example 2";
+ok lych(59) == 0, "Example 3";
+ok lych(1001) == 0, "itself palindrome";
+ok lych(196) == 1, "famous 196 undetermined";