约瑟夫环

是一个数学的应用问题：

　　已知n个人（以编号1，2，3...n分别表示）围坐在一张圆桌周围。从编号为k的人开始报数，数到m的那个人出列；他的下一个人又从1开始报数，数到m的那个人又出列；依此规律重复下去，直到圆桌周围的人全部出列。

　　例如：n = 9, k = 1, m = 5

　　【解答】

　　出局人的顺序为5, 1, 7, 4, 3, 6, 9, 2, 8。　　

-Joseph Wan is the application of a mathematical problem: given n individuals (with numbers 1,2,3 ... n respectively) sitting around a round table around. From the number of people began to report the number of k, the number to the person out of the column m　his newspaper the next person and from a starting number, count m the man has a column　and so Law be repeated until the round table around were all out of the column. For example: n = 9, k = 1, m = 5 【】 out people to answer the order of 5, 1, 7, 4, 3, 6, 9, 2, 8.