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(a) There is a robot in the Gridville neighborhood, as well as houses and open plots. The robot can move in all the four directions, i.e left, right,...

There is a robot in the Gridville neighborhood, as well as houses and open plots. The robot can move in all the four directions, i.e left, right, up and down, but can only go over the open plots, and once the robot starts to move in one direction it won't stop until it hits a house. The robot may changes its direction after it stops. Given the map of the neighborhood, the starting location of the robot, and a final location, describe and analyze an algorithm to determine if the robot can reach the final location. You may assume that the neighborhood is completely surrounded by houses.屏幕快照 2018-04-01 下午9.24.29.png屏幕快照 2018-04-01 下午9.24.22.png

屏幕快照 2018-04-01 下午9.24.22.png

(a) There is a robot in the Gridville neighborhood, as well as houses and open plots. The robot can move
in all the four directions, i.e left, right, up and down, but can only go over the open plots, and once
the robot starts to move in one direction it won’t stop until it hits a house. The robot may changes its direction after it stops. Given the map of the neighborhood, the starting location of the robot,
and a final location, describe and analyze an algorithm to determine if the robot can reach the final location. You may assume that the neighborhood is completely surrounded by houses.

屏幕快照 2018-04-01 下午9.24.29.png

Fig C Ex: For Fig A, there is a path such that the robot can reach the green tile (its final location). Namely,
see the orange path shown in Fig C (left —)- down —> left —> down —> right —> down —> right). For
the input in Fig B, it is not possible for the robot to stop at the final location.

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