Bus Routes
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The Kingdom of Kharagpur has **N** cities, which are numbered from **1** to **N**. There are many bus routes which go directly from one city to another. A bus route from **City i** to **City j** does not mean that there is a route from **City j** to **City i**. Yesterday, the King had a dream, and he has decided that for the country to become prosperous, in every city, the number of bus routes co
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solution.cppC++17
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