Made the code Python 3 compatible

Author: s-sanyal

data_structures/Stacks/Stock-Span-Problem.py

@@ -37,7 +37,7 @@ def calculateSpan(price, S):
 # A utility function to print elements of array 
 def printArray(arr, n): 
     for i in range(0,n): 
-        print arr[i], 
+        print (arr[i]), 
 
 
 # Driver program to test above function