solve simplify path.

1 files changed, 12 insertions, 1 deletions

diff --git a/spec/heaps_stacks_queues/simplify_path_spec.rb b/spec/heaps_stacks_queues/simplify_path_spec.rb
index 7aaed69..af40158 100644
--- a/spec/heaps_stacks_queues/simplify_path_spec.rb
+++ b/spec/heaps_stacks_queues/simplify_path_spec.rb
@@ -35,7 +35,18 @@ DOC
 
 describe "simplify_path" do
   def simplify_path(path)
-    path
+    result = []
+    path.split('/').each do |part|
+      case part
+      when '.'
+      when '..'
+        result.pop
+      when ''
+      else
+        result.push(part)
+      end
+    end
+    "/" + result.join('/')
   end
 
   [