War with Westelande

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In the world of Elder Tale, the Westelande Empire has $N$ cities, numbered from $1$ to $N$. These cities are connected through $N-1$ $\textbf{uni-directional}$, i.e. directed, Intercity Transport Gates such that all the cities are connected within the empire. The Kunie Clan can change the orientation of the Gates, but it will take $e[i]$ amount of gold to do so, where i$^{th}$ edge lies be

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solution.cppC++17

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