Graph Sah Kreedam 2

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Do you remember Mr. Y from Vigyanpura? This is him now! ![Mr. Y](https://i.ibb.co/ZGrqykH/091f814f05cabf46c7c187203a0f6dbc.jpg) He has set up hi-tech portals in the $N$ houses of Vigyanpura. The portal in a house can be used to travel to another (fixed) house. Dr. Y now wants to test if these portals work correctly. For this, he will send $M$ of his explorer robots, each of which will start at s

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solution.cppC++17

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