摘要: Given two integers n and k, return all possible combinations of k numbers out of 1 ... n. For example,If n = 4 and k = 2, a solution is: [ [2,4], [3,4 阅读全文
posted @ 2017-02-12 07:08 CodesKiller 阅读(130) 评论(0) 推荐(0) 编辑