Merge pull request #23 from wenting-zhao/patch-1

kamyu104 · web-flow · commit e295379b3e62 · 2016-08-05T22:12:17.000+08:00
Added a quicker solution.
diff --git a/Python/missing-number.py b/Python/missing-number.py
@@ -20,3 +20,7 @@ def missingNumber(self, nums):
         """
         return reduce(operator.xor, nums, \
                       reduce(operator.xor, xrange(len(nums) + 1)))
+
+class Solution2(object):
+    def missingNumber(self, nums):
+        return sum([i for i in xrange(len(nums)+1)])-sum(nums)
