DP 3

[MeghaN28]

No description provided.

[super30admin]

Minimum Falling Path Sum (MinimumFallingSum.java)

Strengths:

• Excellent problem-solving approach using dynamic programming
• Very clear and detailed comments explaining the algorithm
• Clean, readable code structure
• Correct handling of boundary conditions (first and last columns)
• Proper use of Integer.MAX_VALUE concept implicitly handled

Areas for Improvement:

• Space optimization: Consider using a rolling array technique to reduce space from O(n²) to O(n). This would involve maintaining only two rows (previous and current) instead of the entire matrix.
• Could add a brief comment about the edge case handling for first/last columns

Overall Assessment:
This is a solid, well-documented solution that correctly solves the problem with optimal time complexity. The only minor improvement would be space optimization, but the current solution is perfectly acceptable for the problem constraints.

VERDICT: PASS

---

Delete and Earn (DeleteandEarn.java)

Strengths:

• The solution is logically sound and matches the optimal reference approach
• Excellent edge case handling (max=0, max=1)
• Well-documented code with clear comments explaining the DP recurrence
• Proper use of defensive programming

Areas for Improvement:

• Time complexity description in comments could be more precise: "O(n + max)" where n is array length and max is maximum value
• Consider using more descriptive variable names like maxVal instead of max to avoid confusion with array length

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

VERDICT: PASS