Design-1: Design Hashset & Min Stack Complete

[ankurgokhale05]

Design-1: Design Hashset & Min Stack Complete

[super30admin]

Design HashSet (Design_Hashset.py)

FEEDBACK must contain at minor 4 bullet points. Feedback must be bullet points (start with "-"). Each bullet must be doc

VERDICT: NEEDS_IMPROVEMENT

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Min Stack (Min_Stack.py)

This is an outstanding solution that demonstrates strong understanding of the problem and excellent software engineering practices. Specific strengths:

1. Multiple approaches: Providing both two-stack and one-stack solutions shows depth of understanding and gives the reader options to choose from.

2. Thorough documentation: The docstrings clearly explain the algorithm, complexity analysis, and trade-offs.

3. Comprehensive testing: The test suite covers edge cases that many solutions miss, including duplicate minimums, strictly increasing/decreasing sequences, and empty stack handling.

4. Defensive programming: Raising IndexError on empty stack operations is good practice, even though the problem guarantees non-empty operations.

5. Clean implementation: The code is readable, well-organized, and follows Python conventions.

Minor suggestions for future improvement:

• Consider adding a brief comparison of when to prefer each approach (e.g., two-stack is more intuitive, one-stack uses less code)
• The float('inf') initialization in the one-stack approach could be replaced with None and a check, but float('inf') works fine here

VERDICT: PASS