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LeetCode第四题,Add Two Numbers
题目原文: You are given two linked lists representing two non-negative numbers. The digits are stored in reverse order and each of their nodes contain a single digit. Add the two numbers and return it ...
分类:其他好文   时间:2014-08-05 00:51:58    阅读次数:257
android如何使用DOM来解析XML+如果做一个表情的弹出框
效果图: 如何解析以下的xml: (#大笑) (#微笑) (#亲亲) (#抱抱) (#色色) (#好失望哟) 这样来解析: public class MessageFaceModel { /** single instance of this class */ private static MessageFaceModel instance = null;...
分类:移动开发   时间:2014-08-05 00:47:08    阅读次数:332
html template
https://wrapbootstrap.com/tag/single-pagehttp://themeforest.net/https://wrapbootstrap.com/themeshttp://www.htmltemplates.net/http://www.templatemonste...
分类:Web程序   时间:2014-08-04 20:46:47    阅读次数:208
计算cost--全表扫描
下面教大家如何手工算出oracle执行计划中的cost值。 成本的计算方式如下: Cost = (        #SRds * sreadtim +        #MRds * mreadtim +        CPUCycles / cpuspeed        ) / sreadtime #SRds - number of single block reads 单...
分类:其他好文   时间:2014-08-04 18:06:07    阅读次数:310
Single Number II
问题:找出只出现一次的数,其他数出现了三次分析:将数转化为二进制的位,数出现了三次相当于其对应的二进制上每个位置出现了3次,这里有个抽象的地方就是,例如数中包含1,3两个其二进制的第一位都包含1, 怎么区分,其实并不需要区分,无论是数字3的还是数字1的二进制第一位的1都无所谓,因为我们完全可以...
分类:其他好文   时间:2014-08-04 10:53:27    阅读次数:296
Architecture.SOLID Principles
1. Single Responsibilityhttp://en.wikipedia.org/wiki/Single_responsibility_principle (ToRead)2. Open/Closedhttp://en.wikipedia.org/wiki/Open/closed_pr...
分类:其他好文   时间:2014-08-03 23:07:06    阅读次数:216
ubuntu密码忘了、sudoers文件坏了等解决办法
1、开机狂按shift键,进入grub页面,用上下键移到第二行的恢复模式,按e(注意不是回车) 即Ubuntu,With Linux 3.2.0-23-generic(recovery mode)? 2、把ro recovery nomodeset 改成rw single init=/bin/bash ...
分类:其他好文   时间:2014-08-02 18:34:04    阅读次数:263
Single Number II
Single Number II Given an array of integers, every element appears three times except for one. Find that single one. Note: Your algorithm should have a linear runtime complexity. Could you implement it without using extra memory?...
分类:其他好文   时间:2014-08-02 12:53:53    阅读次数:289
#module-django.db.models
ModelsA model is the single, definitive source of information about your data. It contains the essential fields and behaviors of the data you're stori...
分类:数据库   时间:2014-08-02 01:43:32    阅读次数:297
zju 2812 Quicksum
QuicksumTime Limit: 2 Seconds Memory Limit: 65536 KBA checksum is an algorithm that scans a packet of data and returns a single number. The idea is...
分类:其他好文   时间:2014-08-01 22:43:32    阅读次数:333
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