Josephu问题为：设编号为1，2，… n的n个人围坐一圈，约定编号为k（1<=k<=n）的人从1开始报数，数到m 的那个人出列，它的下一位又从1开始报数，数到m的那个人又出列，依次类推，直到所有人出列为止，由此产生一个出队编号的序列。-Josephu issues: Let numbered 1,2, ... n of the n individuals sitting around, agreed number k (1 < = k < = n) from 1 to start the count off a few of the m out of that person , the next it started off from a few to m another person out, and so on until all the series so far, resulting in a number of the team sequence.