Update wiggle-sort.py

kamyu104 · kamyu104 · commit 28a01b46ccf9 · 2015-09-10T14:05:37.000+08:00
diff --git a/Python/wiggle-sort.py b/Python/wiggle-sort.py
@@ -10,4 +10,5 @@ def wiggleSort(self, nums):
         for i in xrange(1, len(nums)):
             if ((i % 2) and nums[i - 1] > nums[i]) or \
                 (not (i % 2) and nums[i - 1] < nums[i]):
+                # Swap unordered elements.
                 nums[i - 1], nums[i] = nums[i], nums[i - 1]
