Emergency
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There are N cities in the country and some of them are connected by bidirectional roads. To handle any emergency situation, they need a emergency cell to be set up at some cities such that, in case of any emergency in a city, the fire engine, the ambulance etc., can reach that city. Setting up a emergency cell is expensive and as occurrence of a emergency situation is very rare, its just enough to
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solution.cppC++17
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