DP-2 Done

[ManishaRana1195]

No description provided.

[super30admin]

Strengths:

• The student has provided multiple approaches to solve the problem, demonstrating a deep understanding of dynamic programming.
• The code is well-commented and easy to follow.
• The space optimization approach is a significant improvement over the reference solution.

Areas for Improvement:

• The recursive approach could be optimized further by pruning branches where the current cost exceeds the minimum found so far.
• The memoization approach could use a more efficient key structure (e.g., a pair of integers) instead of a List to improve performance.
• The tabulation approach could be simplified by directly using the costs array instead of creating a separate DP table.