Davis Cup Headache

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Problem description. Update : The time limits for the testcases have been relaxed.Rejudging is in progress. India needs to decide its selection for the Davis Cup. It needs to put forward a selection which should contain exactly G teams, each of which can be a singles/doubles team. N players are available with IDs in the range 1 to N. 2 players can form a doubles team only if their IDs are adja

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solution.cppC++17

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