Update make-a-square-with-the-same-color.py

Author: kamyu104

Python/make-a-square-with-the-same-color.py

@@ -1,6 +1,9 @@
 # Time:  O((n - w + 1)^2 * w^2)
 # Space: O(1)
 
+import collections
+
+
 # array
 class Solution(object):
     def canMakeSquare(self, grid):