LLD - Advanced LLD Concepts
What will be the output of this pseudo-code?
immutable_list = [1, 2, 3] immutable_list.append(4) print(immutable_list)
What will be the output of this pseudo-code?
medium📝 Analysis Q5 of 15
Step-by-Step Solution
Solution:
Step 1: Understand immutability of list
An immutable list cannot be changed after creation, so append is disallowed.Step 2: Predict behavior of append
Calling append on immutable list causes an error.Final Answer:
Error: Cannot modify immutable list -> Option AQuick Check:
Appending immutable list = Error [OK]
Quick Trick: Immutable collections disallow modification methods [OK]
Common Mistakes:
- Assuming append works on immutable lists
- Expecting list to remain unchanged silently
- Ignoring immutability enforcement
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