有6个球队A、B、C、D、E、F进行比赛，已经比赛完的场次有：A同B、C，B同D、F，

E同C、F。每个球队每周比赛一次。试给出一种调度方法，使得所有的队能在最短的时间

内相互之间完成比赛。 要求使用者输入还需要比赛的场次，例如ab cd...，程序将把能

同一周比赛的场次分别列出。-There are six teams A, B, C, D, E, F games, the matches have finished games are: A with B, C, B and D, F, E and C, F. Each team one game per week. Given a test scheduling method, making all the teams in the shortest time between the completion of competition. Also need to require users to enter the competition screenings, such as ab cd ..., the procedure will be the same week shows a breakdown of the game.