ayaov

摘要： 问题一： 穷尽集合之间的元素组合。 input: list of list [ [‘a’, ‘b’, ‘c’], [‘1’, ‘2’, ‘3’, ‘4’, ‘5’, ‘6’] , [‘A’, ‘B’, ‘C’, ‘D’] ] output: [ ​ [‘a’, ‘1’, ‘A’], ​ [‘a’, 阅读全文