DS 83 in OG
The participants in a race consisted of 3 teams with 3 runners on each team. A team was awarded 6 - n points if one of its runners finished in nth place, where 1<=n<=5. If all the runners finished the race and if there were no ties, was each team awarded at least one point?
(1)No team was awarded more than a total of 6 points.
(2)No pair of teammates finished in consecutive places among the top five places.
答案A
做的时候无从下手,后来看了后面的解释,有点明白,就是还是不太清楚为什么 total 15 points,每一个地点对所有队员来说只能到达一次的吗?题目中哪句话说明是这样的呢?游说能帮我解释一下这个题目吗?谢谢作者: tongxun 时间: 2002-11-12 17:35