问题是:有一辆公交汽车,包括起点站和终点站共有15个车站。如果有一辆车,除终点站外,每一站上车的乘客中,恰好各有一位乘客从这一站到以后的每一站。为了使每位乘客都有座位,这辆公共汽车最少要有多少个座位。 有的快,要详细点,答的好的话有100分奖励!!!!!!!^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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