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FZU 2213 Common Tangents(公切线)
Description题目描述Two different circles can have at most four common tangents.The picture below is an illustration of two circles with four common tangen...
分类:其他好文   时间:2016-01-16 16:45:04    阅读次数:169
LeetCode(141): Linked List Cycle
Linked List Cycle: Given a linked list, determine if it has a cycle in it. Follow up: Can you solve it without using extra space? 题意:判断一个链表中是否存在环。 思路:...
分类:其他好文   时间:2016-01-15 23:10:41    阅读次数:171
python经常出现的字符编码问题详解
python在进行字符串处理或者通过open函数读取文件时,经常会出现编码的错误:UnicodeDecodeE-rror:‘ascii‘codeccan‘tdecodebyte0xe6inposition0:ordinalnotinrange(128)这个是由于python在进行编码和解码的过程中,出现编解码不兼容时导致的错误。所以现在需要对字符的编码有个..
分类:编程语言   时间:2016-01-15 18:03:36    阅读次数:206
安装iftop,遇到包不全怎么办
安装iftop,我是源码安装,在./configure之后,遇到configure:error:can‘tfindpcap.hYou‘renotgoingtogetveryfarwithoutlibpcap.没法执行make&&makeinstall这个命令,于是去网上查为什么会这样,源码安装iftop,需要提前安装的依赖包有:#yuminstallflexbyacclibpcapnc..
分类:其他好文   时间:2016-01-15 18:00:18    阅读次数:10540
uniqueidentifier 和 GUID 产生函数
一,UniqueIdentifier 是一个数据类型,用于存储GUID的值。uniqueidentifier data typeIs a 16-byte GUID.A column or local variable of uniqueidentifier data type can be init...
分类:其他好文   时间:2016-01-15 14:40:03    阅读次数:206
css伪元素
CSS 伪元素用于向某些选择器设置特殊效果。1、:first-line 伪元素 "first-line" 伪元素用于向文本的首行设置特殊样式。注意:"first-line" 伪元素只能用于块级元素。You can use the :first-line pseudo-element to add a...
分类:Web程序   时间:2016-01-15 13:00:29    阅读次数:184
Oracle安装报错:SGA size can not be greater than maximum shared memeory segment size
安装数据的时候报错: 查看操作系统参数设置: [root@single1 ~]# vi /etc/sysctl.conf # Kernel sysctl configuration file for Red Hat Linux # # For binary values, 0 is disabled, 1 is enabled. See sysctl(8) and # sysctl.c...
分类:数据库   时间:2016-01-15 13:00:23    阅读次数:190
G面经prepare: Straight Partition of A Deck of Cards
Define “Straight” as 5 cards with consecutive numbers. Determine if the deck can be fully divided into sets of “Straight”.Example: 1, 2, 3, 4, 4, 5, 5...
分类:其他好文   时间:2016-01-15 08:40:10    阅读次数:254
[Javascript] How to use JavaScript's String.replace
In JavaScript, you can change the content of a string using thereplacemethod. This method signature is overloaded with a bunch of different ways to do...
分类:编程语言   时间:2016-01-15 06:26:04    阅读次数:222
Thinking in Java,Fourth Edition(Java 编程思想,第四版)学习笔记(十一)之Holding Your Objects
To solve the general programming problem, you need to create any number of objects, anytime, anywhere. So you can't rely on creating a named referen.....
分类:编程语言   时间:2016-01-15 01:06:08    阅读次数:352
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