摘要: Given a collection of distinct numbers, return all possible permutations. For example,[1,2,3] have the following permutations:[1,2,3], [1,3,2], [2,1,3 阅读全文
posted @ 2016-05-04 12:00 ElNinoT 阅读(257) 评论(0) 推荐(0) 编辑