【题目】
Write an efficient algorithm that searches for a value in an m x n matrix. This matrix has the following properties:
Integers in each row are sorted from left to right.
The first integer of each row is greater than the last integer of the previous ...
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其他好文 时间:
2014-06-05 08:28:43
阅读次数:
321
1、文件描述符
Linux操作系统中,几乎所有的设备都被抽象成为设备文件。因此,当我们想对设备进行操作的时候可以直接去操作其相应的设备文件。设备文件即是文件,要想对文件进行操作,无非就是:打开文件、关闭文件、写入数据、读出数据等,它们分别对应的函数有open(),close(),write(),read(),就以其中的open()函数做一个分析。open函数的作用是打开一个文件。
(1)它的定...
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系统相关 时间:
2014-06-05 06:17:45
阅读次数:
389
版本:2.6.33.4
发送端 tcp_write_xmit 函数
/* This routine writes packets to the network. It advances the
* send_head. This happens as incoming acks open up the remote
* window for us.
*
* LARGESEND no...
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其他好文 时间:
2014-06-05 04:15:28
阅读次数:
236
??
IntentService is a base class for Services
that handle asynchronous requests (expressed as Intents)
on demand. Clients send requests through startService(Intent) calls;
the service is starte...
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其他好文 时间:
2014-06-05 03:03:46
阅读次数:
262
Given n pairs of parentheses, write a function to generate all combinations of well-formed parentheses.
For example, given n = 3, a solution set is:
"((()))", "(()())", "(())()", "()(())", "()()...
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其他好文 时间:
2014-06-05 02:15:14
阅读次数:
262
1. / – RootEvery single file and directory
starts from the root directory.Only root user has write privilege under this
directory.Please note that /ro...
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系统相关 时间:
2014-06-04 20:04:22
阅读次数:
416
Given two binary trees, write a function to
check if they are equal or not.Two binary trees are considered equal if they are
structurally identical an...
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其他好文 时间:
2014-06-04 18:37:18
阅读次数:
277
今天在使用ffmpeg时出现了Operation not
permitted通过增加打印信息发现是在av_interleaved_write_frame出现的问题,昨天还没出现这个问题,很奇怪,就把昨天的拿过来试还是一样,最后发现时少加了O_CREAT昨天没事是因为之前那个文件存在,Linux基础太...
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其他好文 时间:
2014-06-03 07:11:24
阅读次数:
380
【题目】
Follow up for "Search in Rotated Sorted Array":
What if duplicates are allowed?
Would this affect the run-time complexity? How and why?
Write a function to determine if a given target is in the array.
【题意】
在“Search in Rotated Sorted Array”的基...
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其他好文 时间:
2014-06-03 01:55:38
阅读次数:
173
Problem StatementIn the Republic of Nlogonia
there are N cities. For convenience, the cities are numbered 0 through N-1. For
each two different cities...
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其他好文 时间:
2014-05-31 00:47:40
阅读次数:
364