Merge remote-tracking branch 'upstream/master'

2 files changed, 44 insertions, 0 deletions

diff --git a/challenge-112/abigail/ruby/ch-1.rb b/challenge-112/abigail/ruby/ch-1.rb
new file mode 100644
index 0000000000..e26463cb68
--- /dev/null
+++ b/challenge-112/abigail/ruby/ch-1.rb
@@ -0,0 +1,27 @@
+#!/usr/bin/ruby
+
+#
+# See ../README.md
+#
+ 
+#
+# Run as: ruby ch-1.rb < input-file
+#
+
+ARGF . each_line do
+    | line |
+    parts = line . strip() . split (/\/+/)
+    parts2 = []
+    parts . each do
+        | part |
+        if part == "" or part == "."   # Skip empty parts and current directory
+            next
+        end
+        if part == ".."                # Remove parent directory
+            parts2 . pop
+            next
+        end
+        parts2 . push (part)           # Add part
+    end
+    puts ("/" + parts2 . join("/"))    # Print result
+end
diff --git a/challenge-112/abigail/ruby/ch-2.rb b/challenge-112/abigail/ruby/ch-2.rb
new file mode 100644
index 0000000000..003d99288f
--- /dev/null
+++ b/challenge-112/abigail/ruby/ch-2.rb
@@ -0,0 +1,17 @@
+#!/usr/bin/ruby
+
+#
+# See ../README.md
+#
+ 
+#
+# Run as: ruby ch-2.rb < input-file
+#
+
+SQRT5 = Math . sqrt 5
+PHI   = (1 + SQRT5) / 2
+
+ARGF . each_line do
+    | n |
+    puts ((PHI ** (n . to_i + 1) / SQRT5) . round)
+end