设计一个满足以下要求的比赛日程表： (1)每个选手必须与其他n-1个选手各赛一次； (2)每个选手一天只能赛一次； (3)循环赛一共进行n-1天或n天（选手人数为偶数、奇数）。 -Design a game schedule to meet the following requirements: (1) Each player must be with the other n-1 once a player of the tournament (2) Each player c