Strengths:

• The student's solution demonstrates a clear understanding of the problem and provides an efficient solution.
• The use of two passes (left to right and right to left) to compute the product is a clever optimization.
• The code is clean, well-commented, and easy to follow.

Areas for Improvement:

• While the solution is correct and efficient, it would be beneficial to include a brief explanation of the approach in the comments, similar to what was done in the other files (e.g., diagonal-traverse.java and spiral-matrix.java).
• The variable name runMul could be more descriptive, such as runningProduct, to enhance readability.