两个乒乓球队进行比赛，各出三人。甲队为a,b,c三人，乙队为x,y,z三人。已抽签决定 比赛名单。有人向队员打听比赛的名单。a说他不和x比，c说他不和x,z比，请编程序找出 三队赛手的名单。 ,2 table tennis team to compete, each offering three. A team of a, b, c three-, B team for the x, y, z three. Match list has been determined by lot. Th