Chess Tournament

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There will be a chess tournament of n players. Each player has announced the number of games they want to play. Each pair of players can play at most one game. Your task is to determine which games will be played so that everybody will be happy. Input The first input line has an integer n: the number of players. The players are numbered 1,2,\dots,n. The next line has n integers x_1,x_2,\dots,x

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solution.cppC++17

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