摘要: 题目描述: Given a collection of numbers, return all possible permutations. For example, have the following permutations: , and . 解题思路: 这道题目由于是求所有的全排列,比较直观 阅读全文
posted @ 2014-12-22 17:10 mrbean 阅读(212) 评论(0) 推荐(0) 编辑