Completed Design -1 HashSet

[Cheran021]

No description provided.

[super30admin]

Design HashSet (Sample.java)

Strengths:

• Your solution correctly implements the HashSet using the same 2D array approach as the reference solution
• The code is clean, well-commented, and uses Swift idioms effectively
• The "hotel with floors and rooms" analogy in your comments makes the approach easy to understand
• Proper handling of the edge case for primaryIndex == 0 to accommodate keys up to 10^6
• Good use of guard statements for early returns

Areas for improvement:

• Your space complexity comment says O(1), but it should be O(n) where n is the number of unique keys added. The total space used grows with the number of keys, even though each operation is O(1).
• Consider adding more inline comments to explain the hashing logic for future readers

VERDICT: PASS

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Min Stack

It appears you have submitted the solution to a different problem (Design HashSet) instead of the Min Stack problem. The Min Stack problem requires you to implement a stack that can retrieve the minimum element in O(1) time.

To solve Min Stack correctly, you typically need:

• A main stack to store all elements
• A secondary stack (or variable) to track the minimum at each level
• When pushing, also push the current minimum onto the min-tracking stack
• When popping, pop from both stacks
• getMin() returns the top of the min-tracking stack

Please re-read the problem statement carefully and submit a solution that actually implements the MinStack class with push, pop, top, and getMin methods. The reference solution uses two stacks - one for the actual values and another to track the minimum at each level.

VERDICT: NEEDS_IMPROVEMENT