Strengths:

• The Two Sum solution is correct and efficient, with optimal time and space complexity.
• The code is well-structured and readable, with clear variable names and comments.
• The approach is well-explained in the comments.

Areas for Improvement:

• The Knapsack solution is not relevant to the Two Sum problem and should not be included in the submission for this problem. Ensure that you only submit code that is directly related to the problem at hand.
• In the Two Sum solution, the variable name "map" is a built-in function in Python. It is better to avoid using built-in names as variable names to prevent confusion and potential errors. Consider renaming it to something like "num_dict" or "seen".