Star Sum

Given a graph where each node is a city. And you can build power plant in a city.
The power produced by a power plant is value[i]. Choose the optimal nodes for the power plants to maximize the total value from the cities.
Return the maximum total value.

Solve the problem:
def maxTotalValue(cities, connections, from_city, to_city, values, k): """ :type cities: int :type connections: int :type from_city: List[int] :type to_city: List[int] :type values: List[int] :type k: int :rtype: int """

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