OOP & Design Patterns - Template Method Pattern - Define Skeleton, Override Steps
What is the space complexity of the Template Method Pattern implementation with abstract methods and hook methods, assuming no recursion?
What is the space complexity of the Template Method Pattern implementation with abstract methods and hook methods, assuming no recursion?
medium🪤 Complexity Trap Q6 of Q15
Step-by-Step Solution
Solution:
Step 1: Analyze method calls and stack usage
prepare_recipe calls fixed steps without recursion, and hook methods add only constant call layers.Step 2: Consider call stack depth
Call stack depth is constant and does not grow with input size or subclass count.Final Answer:
Option D -> Option DQuick Check:
No recursion and fixed calls -> O(1) space [OK]
Quick Trick: No recursion -> constant space including call stack [OK]
Common Mistakes:
MISTAKES- Assuming space grows with subclass count or recursion.
Trap Explanation:
PITFALL- Candidates confuse recursion stack with normal call stack or forget hook method calls add constant overhead.
Interviewer Note:
CONTEXT- Tests understanding of space complexity including call stack in design patterns.
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