A person in room number (13) in hospital below had just recovered from Corona, and wanted to say goodbye to all other patients, but the doctors told him if he says goodbye to the same patient twice, he will be infected by corona again! How can he visit patient in every room below and go out of the building without further infection?
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Answer:
he should take a notebook and write the room numbers that he visited.
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1
Answer:
The patient's number is 13, so once he leave the box number 13, there will be no patient in that box. Hence he can re-enter the box number 13.
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