(http://leetcode.com/2011/03/median-of-two-sorted-arrays.html)

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)).

double findMedian(int A[], int B[], int l, int r, int nA, int nB)
{
if (l > r)
return findMedian(B, A, max(, (nA+nB)/-nA), min(nB, (nA+nB)/), nB, nA);
int i = (l+r)/;
int j = (nA+nB)/ - i - ;
if (j >= && A[i] < B[j])
return findMedian(A, B, i+, r, nA, nB);
else if (j < nB- && A[i] > B[j+])
return findMedian(A, B, l, i-, nA, nB);
else
{
if ((nA+nB)% == )
return A[i];
else if (i > )
return (A[i]+max(B[j], A[i-]))/2.0;
else
return (A[i]+B[j])/2.0;
}
}

A O(m+n) solution:

bool findMedian(int A[], int B[], int nA, int nB)
{
assert(A && B && nA >= && nB >= ); bool odd = (nA + nB) % == ? true : false;
int medianIndex = (nA+nB)/;
if (odd == false)
medianIndex++; int i = ;
int j = ;
int count = ;
int pre = -;
int cur = -;
while (i < nA && j < nB)
{
count++;
if (A[i] < B[j])
{
if (count == medianIndex)
{
cur = A[i];
break;
}
pre = A[i];
i++;
}
else
{
if (count == medianIndex)
{
cur = B[i];
break;
}
pre = B[j];
j++;
}
}
if (i == nA)
{
cur = B[j+medianIndex-count-];
if (medianIndex-count > )
pre = B[j+medianIndex-count-];
}
else if (j == nB)
{
cur = A[i+medianIndex-count-];
if (medianIndex-count > )
pre = A[i+medianIndex-count-];
} if (odd == true)
return cur;
else
return (cur+pre)/2.0;
}

Median of Sorted Arrays的更多相关文章

  1. No.004:Median of Two Sorted Arrays

    问题: There are two sorted arrays nums1 and nums2 of size m and n respectively.Find the median of the ...

  2. [LeetCode] Median of Two Sorted Arrays 两个有序数组的中位数

    There are two sorted arrays nums1 and nums2 of size m and n respectively. Find the median of the two ...

  3. 【leetcode】Median of Two Sorted Arrays

    题目简述: There are two sorted arrays A and B of size m and n respectively. Find the median of the two s ...

  4. 【leedcode】 Median of Two Sorted Arrays

    https://leetcode.com/problems/median-of-two-sorted-arrays/ There are two sorted arrays nums1 and num ...

  5. leetcode-【hard】4. Median of Two Sorted Arrays

    题目 There are two sorted arrays nums1 and nums2 of size m and n respectively. Find the median of the ...

  6. Leetcode4:Median of Two Sorted Arrays@Python

    There are two sorted arrays nums1 and nums2 of size m and n respectively. Find the median of the two ...

  7. leetcode 4. Median of Two Sorted Arrays

    https://leetcode.com/problems/median-of-two-sorted-arrays/ There are two sorted arrays nums1 and num ...

  8. 【算法之美】求解两个有序数组的中位数 — leetcode 4. Median of Two Sorted Arrays

    一道非常经典的题目,Median of Two Sorted Arrays.(PS:leetcode 我已经做了 190 道,欢迎围观全部题解 https://github.com/hanzichi/ ...

  9. Leetcode Median of Two Sorted Arrays

    There are two sorted arrays A and B of size m and n respectively. Find the median of the two sorted ...

随机推荐

  1. Get Intellisense for .axml files in Visual Studio

    原文Get Intellisense for .axml files in Visual Studio So in order to get some intellisense support for ...

  2. poj2136---输出特殊图形

    #include <stdio.h> #include <stdlib.h> #include<string.h> ]; int find(int pos,int ...

  3. C实例--推断一个字符串是否是回文数

    回文是指顺读和反读内容均同样的字符串.比如"121","ABBA","X"等. 本实例将编写函数推断字符串是否是回文. 引入两个指针变量,開 ...

  4. CXF 的IP拦截

    非常久没有写技术文档了,今天 记录下Webserver的Ip限制吧 需求是:webserver接口能在内网訪问,可是測试平台的webserver要能够在外网訪问,这样就有了一点差别, 这个实现的比較简 ...

  5. IBM中枪后,下一个是谁?

    冯强/文 在之前的博文<信息战第二弹:中国对美国咨询公司Say no>我以前提到对美国咨询服务公司在国企开展业务的限制.有可能波及IBM.Microsoft.Google.CISCO.Or ...

  6. 征服 Redis + Jedis + Spring —— 配置&常规操作

    Spring提供了对于Redis的专门支持:spring-data-redis.此外,类似的还有: 我想大部分人对spring-data-hadoop.spring-data-mongodb.spri ...

  7. jQuery的三种$()

    参考脚本之家“http://www.jb51.net/article/21660.htm”   $号是jQuery“类”的一个别称,$()构造了一个jQuery对象.所以,“$()”可以叫做jQuer ...

  8. C++/C#结构体转化-传string给C++

    此例是把C#结构传给C++ C++: typedef struct VidyoClientInEventGroupChat_ { /*! Message (contents) to be sent t ...

  9. Hash表的使用

    Hash表能够实现在O(1)时间内对数据访问,虽然空间复杂度很高,但是时间复杂度很好.所以下面说一些使用Hash的算法. 第一个只出现一次的字符 利用Hash可以实现统计字符的个数,然后在遍历一次得到 ...

  10. [置顶] 修改Android开机画面之rle制作

    第一个动画: Bootloader开机使用的图片是linux.bmp,长高分别是120*120,色度是32,所以可以拿相同格式图片替换,进行编译烧写即可. 第二个图片:内核logo 这个修改方式,我在 ...