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栈和队列的面试题Java实现 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...h、pop、的时间复杂度都是O(1)
(6)判断栈的push和pop序列是否一致
1、栈的创建:
我们接下来通过链表的形式来创建栈,方便扩充。
代码实现:
public class Stack {
public Node head;
public Node current;
//方法:入栈操作
...
The identity used to sign the executable is no longer valid
...ssword, team, app, etc.
Select the right profile in Code Signing Identity (iPhone Developer)
Conventional way:
Just go to the new provisioning portal : Certificates, Identifier, Profiles
Login with your developer account.
Go to Certificates and click the Plus button.
Then select iOS Apps Develop...
Easy way to see saved NSUserDefaults?
...simulator if you go to:
/users/your user name/Library/Application Support/iPhone Simulator/<Sim Version>/Applications
This directory has a bunch of GUID named directories. If you are working on a few apps there will be a few of them. So you need to find your app binary:
find . -name foo.a...
C++实现一款简单完整的聊天室服务器+客户端 - C/C++ - 清泛网 - 专注C/C++及内核技术
...
运行服务器
./server 8000
注意Linux下的防火墙iptables服务是否已经启动,如果启动了,需要在/etc/sysconfig/iptables中加入例外端口8000,并重启启动防火墙
/etc/init.d/iptables restart
基于WSAAsyncSelect模型实现的聊天室图形客户端
...
What's the point of 'meta viewport user-scalable=no' in the Google Maps API
...
On many devices (such as the iPhone), it prevents the user from using the browser's zoom. If you have a map and the browser does the zooming, then the user will see a big ol' pixelated image with huge pixelated labels. The idea is that the user should ...
Dispelling the UIImage imageNamed: FUD
...traffic. Specifically Rincewind added some authority.
There are issues in iPhone OS 2.x where the imageNamed: cache would not be cleared, even after a memory warning. At the same time +imageNamed: has gotten a lot of use not for the cache, but for the convenience, which has probably magnified the p...
支付宝回应幽灵账户:不必担心冒名贷款 - 资讯 - 清泛网 - 专注IT技能提升
...应 幽灵账户对于被绑定非本人又未知的“幽灵”账户,是否会造成主账户用户的资产损失问题,蚂蚁金服相关工作人员接受21世纪经济报道记者采访时称,实名认证账户下关联的子账户无法借用户身份发起蚂蚁花呗等贷款服务,...
C# 通过代码安装、卸载、启动、停止服务 - 更多技术 - 清泛网 - 专注C/C++及内核技术
... }
}
#endregion
#region 判断window服务是否存在
private bool ServiceIsExisted(string serviceName, ref string dispName)
{
ServiceController[] services = ServiceController.GetServices();
foreach (ServiceController s in...
CPU指令集avx程序无法运行,运行崩溃 - C/C++ - 清泛网 - 专注C/C++及内核技术
...的指令集导致的。Linux上使用 lscpu 命令查看CPU指令集,看是否支持。比如_mm256_cmpeq_epi64 这个函数需要avx2指令集,但是CPU不支持,就导致程序崩溃起不来。原因就是CPU不支持相应的指令集导致的。
Linux上使用 lscpu 命令查看CPU指...
UITableViewCell show white background and cannot be modified on iOS7
... @PeerMohamedThabib please tell some more about the environment (iPad/iPhone, iOS version) and provide some code. And actually you can investigate the situation yourself - just make a subclass of UITableViewCell, redefine the setBackgroundColor: method (just call superclass' implementation insi...
