Create unix_path_resolution.py

Author: erjan

binarysearch/unix_path_resolution.py

@@ -0,0 +1,26 @@
+'''
+Given a Unix path, represented as a list of strings, return its resolved version.
+
+In Unix, ".." means to go to the previous directory and "." means to stay 
+on the current directory. By resolving, we mean to evaluate the two symbols so that we get the final directory we're currently in.
+'''
+
+
+class Solution:
+    def solve(self, path):
+        
+        stack = []
+
+        for s in path:
+            if s == "..":
+                if len(stack)> 0:
+                    stack.pop()
+            elif s == ".":
+                continue
+            else:
+                stack.append(s)
+        print(stack)
+        return stack
+
+
+