Delete and earn. Minimum falling path sum

[paridhimalviya]

Problem1: (https://leetcode.com/problems/delete-and-earn/)

Problem2 (https://leetcode.com/problems/minimum-falling-path-sum/)

[super30admin]

Strengths:

• The student demonstrates a good understanding of dynamic programming concepts, both in the brute-force and tabulation approaches.
• The code is well-commented and structured, making it easy to follow.
• The student correctly identifies the need for dynamic programming to optimize the solution.

Areas for Improvement:

• The brute-force solution should be generalized to handle matrices of any size, not just 3x3.
• The tabulation approach has a bug in the final step where it doesn't check all columns for the minimum value. This should be fixed by iterating over all columns in the first row.
• Consider using a rolling array in the tabulation approach to optimize space complexity further.
• The helper function in the brute-force approach could be simplified by handling all columns uniformly instead of using conditional checks for each column.