我用一星期时间写不出这个算法，哪位高手能解这道题？
数据内容:
A组： "T1","T4","T3","T6","T12";

B组： "T1","T3","T2","T6", "T8";

C组："T1","T3","T6","T12","T8","T6", "T2";

D组："T1","T3","T2","T1","T12","T6", "T3";