Fan and Electrician

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In a Building there are N rooms.There are 4 fans in each room. In each room the number of damaged fans is from 0-4. The electrician fixes fans of only one room in a day.He can choose any room randomly to repair fans in a day but can't choose another room until all the fans of that particular room already chosen are not repaired. For the 1st room he takes as many number of days to repair as number

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solution.cppC++17

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