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杭电 hdu 1213 How Many Tables(经典并查集 基础题)

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Problem Description Today is Ignatius' birthday. He invites a lot of friends. Now it's dinner time. Ignatius wants to know how many tables he needs at least. You have to notice that not all the friends know each other, and all the friends do not want to stay with strangers.Today is Ignatius' birthday. H


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