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  • 英語翻譯

    英語翻譯
    The numbers 1,2,3,4,5 are to be arranged in a circle.An arrangement is bad if it is not true that for every from to one can find a subset of the numbers that appear consecutively on the circle that sum to .Arrangements that differ only by a rotation or a reflection are considered the same.How many different bad arrangements are there?
    主要是第二句看不太懂,
    The numbers 1,2,3,4,5 are to be arranged in a circle.An arrangement is bad if it is not true that for every n from 1 to 15 one can find a subset of the numbers that appear consecutively on the circle that sum to n.Arrangements that differ only by a rotation or a reflection are considered the same.How many different bad arrangements are there?
    前面的漏了幾個字,看這里
    英語人氣:480 ℃時間:2020-04-21 15:48:02
    優(yōu)質(zhì)解答
    就是說1 2 3 4 5五個數(shù)字排成一圈.然后呢有一種叫bad arrangement,先說怎么樣不是bad arrangement吧,不是bad arrangement的安排必須滿足從1到15,每個數(shù)字,都是在這個圈里可以找到的連續(xù)幾個數(shù)字的和.比如這個數(shù)字圈...
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