Completed DP2

[kkhevna9252]

No description provided.

[super30admin]

• The student's solution for PaintHouse is excellent, demonstrating a clear understanding of dynamic programming and space optimization.
• The inclusion of the CoinChange2 solution, while correct, is irrelevant to the current problem evaluation and should be omitted in future submissions unless specifically requested.
• The comments in the PaintHouse solution are helpful but could be slightly more detailed to explain the rationale behind starting from the last house and moving backward.
• The use of temporary variables (tmpR, tmpB) is a good practice to avoid overwriting values prematurely.