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Partitioner分区过程分析
Partition的中文意思就是分区,分片的意思,这个阶段也是整个MapReduce过程的第三个阶段,就在Map任务的后面,他的作用就是使key分到通过一定的分区算法,分到固定的区域中,给不同的Reduce做处理,达到负载均衡的目的。他的执行过程其实就是发生在上篇文章提到的collect的过程阶段,当输入的key调用了用户的map函数时,中间结果就会被分区了。虽说这个过程看似不是很重要,但是也有值...
分类:其他好文   时间:2014-11-16 17:25:40    阅读次数:235
【LeetCode】Palindrome Partitioning II 解题报告
【题目】 Given a string s, partition s such that every substring of the partition is a palindrome. Return the minimum cuts needed for a palindrome partitioning of s. For example, given s = "aab...
分类:其他好文   时间:2014-11-16 17:23:33    阅读次数:158
【LeetCode】Palindrome Partitioning 解题报告
【题目】 Given a string s, partition s such that every substring of the partition is a palindrome. Return all possible palindrome partitioning of s. For example, given s = "aab", Return [ ...
分类:其他好文   时间:2014-11-16 17:22:42    阅读次数:176
[Leetcode] Partition List
Given a linked list and a valuex, partition it such that all nodes less thanxcome before nodes greater than or equal tox.You should preserve the origi...
分类:其他好文   时间:2014-11-16 09:24:55    阅读次数:216
Leetcode-Partition List
Given a linked list and a value x, partition it such that all nodes less than x come before nodes greater than or equal to x.You should preserve the o...
分类:其他好文   时间:2014-11-16 08:15:41    阅读次数:222
排序--快速排序
//快速排序void Quick_Sort(int *a,int low,int high){ int Partition(int *a,int low,int high); int mid; if(lowmid); if(i>=j)break; temp=a[i]; a[i]=a[j]; ...
分类:编程语言   时间:2014-11-15 21:41:57    阅读次数:347
ROW_NUMBER() OVER 排序函数的基本用法
ROW_NUMBER() OVER 排序函数 select ROW_NUMBER() OVER (PARTITION BY guide_id ORDER BY pic_sort) as rowid,pic_id,guide_id from [D_Guides_PIC]ROW_NUMBER()从1开始...
分类:编程语言   时间:2014-11-15 16:40:47    阅读次数:132
[系统]no such partition
电脑系统是win8.1+ubuntu14.2,为了卸载ubuntu,安装CentOS,于是在win8.1下把ubuntu的分区给删除了,重启,出现no such partition grub rescue>错误。 原因是双系统之前是由ubuntu的grub引导的,现在整个ubuntu系统都没了,剩....
分类:其他好文   时间:2014-11-14 20:54:02    阅读次数:178
[LeetCode]Partition List
Given a linked list and a value x, partition it such that all nodes less than x come before nodes greater than or equal to x. You should preserve the original relative order of the nodes in each of...
分类:其他好文   时间:2014-11-14 17:50:06    阅读次数:137
[Leetcode] Palindrome Partitioning
Given a strings, partitionssuch that every substring of the partition is a palindrome.Return all possible palindrome partitioning ofs.For example, giv...
分类:其他好文   时间:2014-11-14 13:58:41    阅读次数:202
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