我在Scala中有一个如下形式的HashMap: HashMap(
37 -> HashSet(5, 1, 6, 9, 13, 12, 3, 8, 4),
20 -> HashSet(5, 1, 6, 9, 13, 12, 3, 8, 4),
45 -> HashSet(5, 6, 9, 13, 3, 8, 4),
49 -> HashSet(5, 6, 9, 13, 3, 8, 4),
39 -> Set(5, 12, 3, 9),
31 -> HashSet(5, 6, 9, 13, 3, 8, 4),
15 -> Set(5, 9, 3