Completed Array-1

[RitikaC1]

No description provided.

[super30admin]

Product of Array Except Self (Problem1.py)

Strengths:

• Correctly implements the O(n) two-pass prefix/suffix product algorithm
• Achieves O(1) extra space complexity (excluding output array)
• Clean, readable code with appropriate comments
• Good variable naming (ans, right)
• Efficient - no unnecessary operations or nested loops

Areas for Improvement:

• The solution is already optimal for this problem
• Could add a brief comment explaining the two-pass approach for future readers
• Minor: The backward loop could be slightly more readable with consistent indexing

The solution demonstrates a solid understanding of the problem constraints and successfully avoids both division and O(n²) time complexity.

VERDICT: PASS

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Diagonal Traverse (Problem2.py)

Strengths:

• Clean and readable implementation that closely follows the standard diagonal traversal algorithm
• Good use of descriptive variable names (row, col, up)
• Well-documented with time and space complexity comments
• Correctly handles all edge cases (corners, boundaries)
• The logic for direction changes is clear and correct

Areas for Improvement:

• Consider caching len(result) in a variable for slightly better performance (e.g., total = m * n and while len(result) < total)
• The solution is functionally equivalent to the reference solution and demonstrates solid understanding of the problem

VERDICT: PASS

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Spiral Matrix (Problem3.py)

Strengths:

• Clean implementation that matches the reference solution's approach
• Good use of descriptive variable names (top, bottom, left, right)
• Proper boundary condition checks (if top<=bottom, if left<=right) to avoid duplicate traversal
• Well-commented time and space complexity
• Follows Python naming conventions appropriately

Areas for improvement:

• The range() function's third parameter (step) defaults to 1, so the explicit 1 in range(left, right+1, 1) is unnecessary and could be simplified to range(left, right+1) for cleaner code
• Could add a brief docstring explaining what the function does
• Consider adding type hints for better code documentation

Overall, this is a solid implementation that demonstrates good understanding of the algorithm and problem-solving approach.

VERDICT: PASS