[Hacker Rank] Interview Preparation Kit: Dictionaries and Hashmaps: Frequency Queries. Clean Code: no magic numbers.

Author: Gonzalo Diaz

src/hackerrank/interview_preparation_kit/dictionaries_and_hashmaps/frequency_queries.py

@@ -9,6 +9,9 @@
 __DELETE__ = 2
 __SELECT__ = 3
 
+__NOT_FOUND__ = 0
+__FOUND__ = 1
+
 
 def freq_query(queries):
     result = []
@@ -26,10 +29,10 @@ def freq_query(queries):
         elif operation == __SELECT__:
             for value in data_map.values():
                 if value == data:
-                    result.append(1)
+                    result.append(__FOUND__)
                     break
             else:
-                result.append(0)
+                result.append(__NOT_FOUND__)
         else:
             raise ValueError('Invalid operation')