From 563cb2f865dcb3e10e7fe0cd3d8ca60a3e02e407 Mon Sep 17 00:00:00 2001
From: Abigail <abigail@abigail.be>
Date: Thu, 4 Nov 2021 18:12:56 +0100
Subject: Bash, bc, C, Lua, Node.js, Python and Ruby solutions for week 133,
 part 1.

---
 challenge-133/abigail/ruby/ch-1.rb | 14 ++++++++++++++
 1 file changed, 14 insertions(+)
 create mode 100644 challenge-133/abigail/ruby/ch-1.rb

(limited to 'challenge-133/abigail/ruby')

diff --git a/challenge-133/abigail/ruby/ch-1.rb b/challenge-133/abigail/ruby/ch-1.rb
new file mode 100644
index 0000000000..efd3e4b8a0
--- /dev/null
+++ b/challenge-133/abigail/ruby/ch-1.rb
@@ -0,0 +1,14 @@
+#!/usr/bin/ruby
+
+#
+# See ../README.md
+#
+ 
+#
+# Run as: ruby ch-1.rb < input-file
+#
+
+ARGF . each_line do
+    |num|
+    puts ((Math . exp(Math . log(num . to_i) / 2)) . to_i)
+end
-- 
cgit 


From a0298e354570ba3ebf90abaeaf9f2af3b58702e7 Mon Sep 17 00:00:00 2001
From: Abigail <abigail@abigail.be>
Date: Fri, 5 Nov 2021 20:58:51 +0100
Subject: AWK, Bash, Lua, Node.js, Python and Ruby solutions for week 133, part
 2.

---
 challenge-133/abigail/ruby/ch-2.rb | 53 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 53 insertions(+)
 create mode 100644 challenge-133/abigail/ruby/ch-2.rb

(limited to 'challenge-133/abigail/ruby')

diff --git a/challenge-133/abigail/ruby/ch-2.rb b/challenge-133/abigail/ruby/ch-2.rb
new file mode 100644
index 0000000000..22b3bae8f0
--- /dev/null
+++ b/challenge-133/abigail/ruby/ch-2.rb
@@ -0,0 +1,53 @@
+#!/usr/bin/ruby
+
+#
+# See ../README.md
+#
+ 
+#
+# Run as: ruby ch-2.rb
+#
+
+$small_primes = [2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31]
+
+def factorize (num)
+    factors = []
+    $small_primes . each do 
+        | prime |
+        while num % prime == 0 do
+            factors . push(prime)
+            num /= prime
+        end
+    end
+    if num > 1 then
+        factors . push (num)
+    end
+    return (factors)
+end
+
+
+def digit_sum (numbers)
+    sum = 0
+    numbers . each do
+        | num |
+        while num > 0 do
+            sum += num % 10
+            num /= 10
+        end
+    end
+    return sum
+end
+
+
+number = 1
+count  = 0
+
+while count < 10 do
+    factors = factorize(number)
+    if factors . length > 1 and digit_sum([number]) == digit_sum(factors) then
+        puts (number)
+        count += 1
+    end
+    number += 1
+end
+
-- 
cgit