Update number-of-unique-flavors-after-sharing-k-candies.py

Author: kamyu104

Python/number-of-unique-flavors-after-sharing-k-candies.py

@@ -1,6 +1,9 @@
 # Time:  O(n)
 # Space: O(n)
 
+import collections
+
+
 class Solution(object):
     def shareCandies(self, candies, k):
         """