题目：There are two sorted arrays A and B of size m and n respectively. Find the median of the two sorted arrays. The overall run time complexity should be O(log (m+n)).
题目分析：
题目中没有说清楚的一点是，假如中间的数值有两个的话，那么取两个数值的平均值。
HappyLeetcode47:Median of Two Sorted Arrays
原文：http://www.cnblogs.com/chengxuyuanxiaowang/p/4283305.html