My score is 49/50.

The question that I got wrong was #45. The question asks for the benefit of a heuristic approach. I answered that it shouldbe used when the problem can be solved in a reasonable time. The correct answer was that if it cannot be solved in a reasonable time. This is correct because a heuristic approach is used to simplify a complex problem. Usually, these problems would be difficult to solve in a short amount of time.

Another question that gave me a little bit of trouble is #15. The main issue I had with this problem was that I didn’t understand the code CAN_MOVE. After some time, I realized that CAN_MOVE just means that there was not an obstacle in the specific direction, and that allowed me to select D) as the answer.