Cleaning Robot

Moderate

Dr. Asimov, ein Robotikforscher, liebt es zu forschen, aber er hasst Hausarbeit und sein Haus war sehr schmutzig. Also hat er einen Reinigungsroboter entwickelt.

Wie in der folgenden Abbildung zu sehen ist, hat sein Haus 9 Zimmer, wobei jedes Zimmer durch einen Buchstaben des Alphabets gekennzeichnet ist:

example

Der Roboter arbeitet wie folgt:

wenn die Batterie leer ist, hält der Roboter an;
ist dies nicht der Fall, wählt der Roboter eine Richtung...

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AizuOJ
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by:

freeman_lex

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