Strengths:

• The student demonstrates a strong understanding of time and space complexity optimization.
• The code is clean, well-commented, and easy to follow.
• The solutions are efficient and correctly solve the problems.

Areas for Improvement:

• For "Find All Numbers Disappeared in an Array", the second loop could be slightly optimized by combining the negation check and result addition into a single condition, though this is a minor point.
• For "Game of Life", the checkLive method could be made more efficient by avoiding the creation of a new neighbors array in each call, though this is also a minor optimization.