Ruby solution for week 102, part 2

3 files changed, 64 insertions, 0 deletions

diff --git a/challenge-102/abigail/README.md b/challenge-102/abigail/README.md
index 89d0827e52..687594c5f5 100644
--- a/challenge-102/abigail/README.md
+++ b/challenge-102/abigail/README.md
@@ -91,3 +91,5 @@ such length-`N` string.
 * [Lua](lua/ch-2.lua)
 * [Node.js](node/ch-2.js)
 * [Perl](perl/ch-2.pl)
+* [Python](python/ch-2.py)
+* [Ruby](ruby/ch-2.rb)
diff --git a/challenge-102/abigail/python/ch-2.py b/challenge-102/abigail/python/ch-2.py
new file mode 100644
index 0000000000..e8c3ee71ec
--- /dev/null
+++ b/challenge-102/abigail/python/ch-2.py
@@ -0,0 +1,31 @@
+#!/opt/local/bin/python
+
+#
+# See ../README.md
+#
+
+#
+# Run as python ch-2.py < input-file
+#
+
+import fileinput
+
+#
+# Working from the end of the required string backwards, we alternate
+# placing a hash, and placing a number. We place them in an array @out,
+# and at the end, print out said array in reverse order.
+#
+for index in fileinput . input ():
+    index = int (index)
+    out = []
+    hash = 0
+    while index > 0:
+        hash = not hash
+        if hash:
+            out . append ("#")
+            index = index - 1
+        else:
+            out . append (str (index + 1))
+            index = index - len (str (index + 1))
+    out . reverse ()
+    print ("" . join (out))
diff --git a/challenge-102/abigail/ruby/ch-2.rb b/challenge-102/abigail/ruby/ch-2.rb
new file mode 100644
index 0000000000..9a4301117e
--- /dev/null
+++ b/challenge-102/abigail/ruby/ch-2.rb
@@ -0,0 +1,31 @@
+#!/usr/bin/ruby
+
+#
+# See ../README.md
+#
+ 
+#
+# Run as: ruby ch-2.rb < input-file
+#
+
+#
+# Working from the end of the required string backwards, we alternate
+# placing a hash, and placing a number. We place them in an array @out,
+# and at the end, print out said array in reverse order.
+#
+
+ARGF . each_line do |_|
+    index = _ . to_i
+    out = Array . new
+    hash = false
+    while index > 0 do
+        if hash = !hash
+            out . push ("#")
+            index -= 1
+        else
+            out . push ((index + 1) . to_s)
+            index -=    (index + 1) . to_s . length
+        end
+    end
+    puts (out . reverse . join)
+end