KVM I/O slowness on RHEL 6 http://www.ilsistemista.net/index.php/virtualization/11-kvm-io-slowness-on-rhel-6.html?limitstart=0 Over one year has passe...
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其他好文 时间:
2014-07-07 20:21:46
阅读次数:
397
Problem Description:Given a binary tree and a sum, determine if the tree has a root-to-leaf path such that adding up all the values along the path equ...
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其他好文 时间:
2014-07-07 19:03:39
阅读次数:
165
From gtk+-2.90.7 configure --help we can see:--with-gdktarget=[x11/win32/quartz] select non-default GDK targetThere is no directfb in the gdktarget as...
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其他好文 时间:
2014-07-07 18:22:03
阅读次数:
235
The default music player on Debian 7.0 is Rhythmbox. At the first look, its appearance seems not so bad. Although it has the problem of displaying Chi...
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系统相关 时间:
2014-06-30 13:15:51
阅读次数:
406
Fortran has two kinds of subprograms: subroutine and function. Usually, subroutine is a combination of several procedures generating side effects with...
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其他好文 时间:
2014-06-30 12:43:00
阅读次数:
207
1.为什么强调在使用jdbc时,需要在使用的时候才打开连接(Connection),用完后立马关闭。如果我的连接(Connection)一开始就打开,在整个程序结束时才关闭,会带来什么后果呢?
2.为什么要使用连接池?而且在使用连接池的时候也要强调连接的打开和关闭?如果不使用连接池,会带来什么样的性能影响?
总之,总觉得自己照猫画虎会使用JDBC或c3p0写数据库访问程序了,但关于co...
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数据库 时间:
2014-06-30 09:03:26
阅读次数:
229
var indexOfSorted = function f(arr,n){
//assume : arr has been sorted
var low = 0;
var high = arr.length - 1;
var mid = (low + high) / 2;
while(high - low > 1){
if(n == arr[low]){return low...
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Web程序 时间:
2014-06-30 08:54:10
阅读次数:
978
Linux下Nginx的安装 如果出现:error: 'ngx_http_file_cache_node_t' has no member named 'length'异常,可能是ngx_cache_purge-2.1.tar.gz版本太旧导致...
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系统相关 时间:
2014-06-30 00:11:43
阅读次数:
401
题目
Given an array of words and a length L, format the text such that each line has exactly L characters and is fully (left and right) justified.
You should pack your words in a greedy approa...
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其他好文 时间:
2014-06-29 23:44:02
阅读次数:
357
【题目】
Given a linked list, determine if it has a cycle in it.
Follow up:
Can you solve it without using extra space?
【题意】
判断一个单向链表是否有环
【思路】
维护两个指针p1和p2,p1每次向前移动一步,p2每次向前移动两步
如果p2能够追上p1,则说明链表中存在环...
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其他好文 时间:
2014-06-29 22:51:33
阅读次数:
267