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Implement Min Falling Path Sum and Delete and Earn#1550

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ayushcha2701 wants to merge 1 commit into
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Implement Min Falling Path Sum and Delete and Earn#1550
ayushcha2701 wants to merge 1 commit into
super30admin:masterfrom
ayushcha2701:ayush

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Least Falling Path Sum (MinFallingPathSum.java)

Strengths:

  • Excellent use of dynamic programming instead of naive recursion
  • Clean handling of edge cases (first and last columns)
  • Efficient space usage with in-place array updates
  • Clear and readable code structure

Areas for Improvement:

  • The boundary check col == 0 and col == matrix.length - 1 could be simplified using Math.max and Math.min with boundary values
  • Consider adding comments to explain the DP transition logic for better maintainability
  • The final loop to find minimum could be combined during DP computation

VERDICT: PASS


Delete and Earn (DeleteAndEarn.java)

Strengths:

  • Correctly implements the House Robber DP pattern for this problem
  • Space-efficient implementation using only two variables instead of a full dp array
  • Clear and informative comments explaining the approach
  • Good variable naming conventions
  • Properly handles edge cases (single element, max=0, max=1)

Areas for improvement:

  • The comment header format could be more standardized (currently has a mix of styles)
  • Could add a brief explanation of why the House Robber pattern applies to this problem

Overall, this is a solid implementation that demonstrates good understanding of dynamic programming and problem transformation.

VERDICT: PASS

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3 participants