Create minimum-impossible-or.py

Author: kamyu104

Python/minimum-impossible-or.py

@@ -0,0 +1,12 @@
+# Time:  O(logr)
+# Space: O(1)
+
+# hash table, bit manipulations
+class Solution(object):
+    def minImpossibleOR(self, nums):
+        """
+        :type nums: List[int]
+        :rtype: int
+        """
+        lookup = set(nums)
+        return next(1<<i for i in xrange(31) if 1<<i not in lookup)