Professor on a Trip

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The Professor is going on a trip with his family this weekend. The country where they live is a federation of $N$ states (numbered $1$ through $N$) with $R$ bidirectional interstate roads connecting them. For each road, we know the amount of fuel the Professor needs to traverse it; travelling within a state consumes no fuel. For each $i$, the price of fuel in state $i$ is fixed at $F_i$ units of m

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solution.cppC++17

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