2015年3月22日
[LeetCode] Search for a Range 二分搜索
摘要： Given a sorted array of integers, find the starting and ending position of a given target value.Your algorithm's runtime complexity must be in the ord... 阅读全文
posted @ 2015-03-22 19:47 A_zhu 阅读(236) 评论(0) 推荐(0)
[LeetCode] Combinations 回溯
摘要： Given two integersnandk, return all possible combinations ofknumbers out of 1 ...n.For example,Ifn= 4 andk= 2, a solution is:[ [2,4], [3,4], [2,3],... 阅读全文
posted @ 2015-03-22 00:00 A_zhu 阅读(175) 评论(0) 推荐(0)