（循环赛日程安排） 设有n=2^k个选手要进行网球循环赛，要求设计一个满足以下要求的比赛日程表：

（1）每个选手必须与其他n-1个选手各赛一次；

（2）每个选手一天只能赛一次。

按此要求，可将比赛日程表设计成一个 n*n的矩阵，其中，第 i 行第 j 列表示和第 i 个选手在第 j 天比赛的对手。

编写循环赛的日程安排程序。具体实现时可以有多种方法实现，但是递归实现是必须完成。

-(round robin schedules) with n = 2 ^ k a player to tennis round robin, request to design a meet the following requirements of the match schedule:

(1) each player must with other n- 1 player all the time.

(2) each player a day can only "a.

According to the requirement of the match schedule design into a n* n matrix, among them, the first I do the first j column and the first I said a player in the first j day game against.

Write round robin schedule program. Specific implementation may have many kinds of methods to realize, but recursive realization is must be completed.