Queen of Hearts

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Wonderland is a wonderful world inhabited by N strange creatures, for simplicity all creatures are numbered from 1 to N. Every creature has exactly one best friend (it could be himself too). Note that, the friendship relationship is not bidirectional, meaning that it might be the case person x is best friend of y, but y is not best friend of x. Besides that, there is a very intricate admiration re

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solution.cppC++17

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