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We can solve using kruskal's approach + union-find (disjoint set). Whenever we are trying to add edge which leads to any of the machines we need to skip adding that edge and consider it in the answer.
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We can solve using kruskal's approach + union-find (disjoint set). Whenever we are trying to add edge which leads to any of the machines we need to skip adding that edge and consider it in the answer.