Strengths:

1. The student demonstrates understanding of multiple approaches to solve the problem, including brute-force, using additional data structures, and in-place optimization.
2. The solution for "Game of Life" is well-structured and efficient, using temporary values to handle state transitions without extra space.
3. Comments and method descriptions are clear and helpful for understanding the logic.

Areas for Improvement:

1. In Method 1 of "Find All Numbers Disappeared in an Array," the while loop lacks an increment for idx, which would cause an infinite loop. This needs to be fixed.
2. The time complexity analysis for Method 1 should note that it's O(n^2) but would fail due to the infinite loop issue.
3. The student could consider adding more comments or explanations for the optimized in-place method (Method 3) to clarify why it works (e.g., why marking indices as negative helps identify missing numbers).