Josephus排列问题定义如下：假设n个竞赛者排成一个环形。给定一个正整数m，从某个指定的第一个人开始，沿环计数，每遇到第m个人就让其出列，且计数继续进行下去。这个过程一直到所有的人都出列为止。最后出列都优胜者。每个人出列的次序定义了整数1，2，...，n的一个排列。这个排列称为一个(n,m)Josephus排列。例如，（7,3)Josephus排列为3,6,2,7,5,1,4.对于给定的1，2，...n中的k个数，Josephus想知道是否存在一个正整数m(n,m)Josephus排列的最后k个数为事先指定的这k个数。-Josephus problem with the definition is as follows : Suppose n player formed a ring. Given a positive integer m, from a designated first started along the Central Counting that every individual section m let out their series and counting continued. This process has been to all of them from far out. Finally out from all the winners. Everyone out in the order shown in the definition of integers 1, 2 ,..., n an order. This arrangement known as a (n, m) Josephus arranged. For example, (7,3) Josephus order of 3, 6,2,7,5,1,4. For a given set of 1,2, ... n and k the number, Josephus would like to know whether there is a positive integer m (n, m) Josephus with the final number k prior to the designated number k this.