correct ch-2.pl; provide ch-1.jl

2 files changed, 48 insertions, 0 deletions

diff --git a/challenge-135/cheok-yin-fung/julia/ch-1.jl b/challenge-135/cheok-yin-fung/julia/ch-1.jl
new file mode 100644
index 0000000000..164fee485c
--- /dev/null
+++ b/challenge-135/cheok-yin-fung/julia/ch-1.jl
@@ -0,0 +1,46 @@
+# The Weekly Challenge 135
+# Task 1 Middle 3-digits
+# Usage: include("ch-1.jl")
+
+function mid_three(x)
+    num = 0
+    if typeof(x) == Int64
+        num = x
+    else
+        try (
+            num = parse(Int64, x)
+        ) catch
+            return "Not an integer. / Format ill-suited."
+        end
+    end
+    num = num > 0 ? num : -num;
+    str = string(num)
+    len = length(str)
+    if len % 2 == 0
+        return "even number of digits"
+    else
+        if len < 3
+            return "too short"
+        end
+    end
+    m = convert(Int64,(len+1) // 2)
+    return str[m-1]*str[m]*str[m+1]
+end
+
+
+testcases = [1234567, -123, 1, 10, 14285, 33554432, 10737418240]
+
+for a in testcases
+    println(mid_three(a))
+end
+
+
+#=
+345
+123
+too short
+even number of digits
+428
+even number of digits
+741
+=#
diff --git a/challenge-135/cheok-yin-fung/perl/ch-2.pl b/challenge-135/cheok-yin-fung/perl/ch-2.pl
index 2b197fc888..3cb8ba1f83 100644
--- a/challenge-135/cheok-yin-fung/perl/ch-2.pl
+++ b/challenge-135/cheok-yin-fung/perl/ch-2.pl
@@ -9,6 +9,8 @@ say sedol($ARGV[0]) ? 1 : 0;
 
 sub sedol {
     return 0 if !defined($_[0]);
+    return 0 if $_[0] =~ m/[AEIOU]/;
+    return 0 if $_[0] !~ m/^[0-9B-Z]{7}$/;
     my %val;
     $val{$_} = $_ for (0..9);
     $val{$_} = ord($_)-ord("A")+10 for ("A".."Z");