Matcher

findMatches(likes: List<Liking>): List<Pair>

根据用户的喜欢，找到配对的人

案例

findMatches([
    new Liking("A", "B"),
    new Liking("B", "C"),
    new Liking("C", "F"),
    new Liking("D", "C"),
    new Liking("F", "C"),
    new Liking("E", "A"),
    new Liking("H", "G"),
    new Liking("G", "H")
]) -> <Pair("C", "F"), Pair("H", "G")>;