Christmas Tree Decoration

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Christmas is coming and Rahul has decided to decorate the Christmas tree for which he has asked his N - 1 friends to help. Rahul has purchased bulbs of M different colours, which are numbered from 1 to M. Each friend has already decided the colour of the bulb he would like to hang on the tree. But then, they face a problem: Currently, none of the bulbs are connected. So they have to be connect

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solution.cppC++17

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