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Http://codeforces.com/contest/348/problem/BB. Apple TreeTime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputYou is given a rooted tree with n vertices. In each leaf vertex there's a single integer-the number of apples in this vertex.The weight of a subtree is the sum of any numbers in this subtree leaves. For instance, the weight of a subtree that corresponds to some leaf are the number written in the

WebKit multiple security vulnerabilities (APPLE-SA-2015-09-16-1)WebKit multiple security vulnerabilities (APPLE-SA-2015-09-16-1) Release date:Updated on:Affected Systems: Apple iTunes WebKit Open Source Project WebKit Apple iOS D

IOS is an operating system developed by Apple for iPhone. It is mainly used for iPhone, iPod touch, iPad, and Apple TV. Like its Mac OS X operating system, it is also based on Darwin. The system was originally named iPhone OS and was renamed iOS at the June 7, 2010 WWDC conference. Figure 1: iOS version history The system architecture of iOS is divided into four

Apple announced yesterday the new language Swift (SWIFT), need to install XCODE6 and Mac OS system for more than 10.9.(Xcode6 Beta is available for official download.) You need to log in to the developer account, and the Mac OS system updates directly. It is not explained in detail here)After the installation is complete, open xcode6, create a new project, compile normally, but execute error. Emulator does not start normally (black screen), Xcode pops

APNS server, be sure to send device_token to our app server, because the Prime Minister is our app server (medium Provider) during the push process) package the messages to be pushed in the specified format (as mentioned later) with device_token and send them to the APNS server. Then, the APNS server pushes the messages to our devices. Now, the device registration process is complete, and the next step is how to push the device: The push process follows the steps below:

door, your application will not be used, and the pre-listing audit is absolutely forced to audit.Then how to set up HTTPS, the server is not casually install their own SSL certificate, although the installation can display HTTPS, but not certified or not, that is, must go to the corresponding third-party certification, this certification is also to money, small series I thought a one-time buyout, Results of the cheapest annual hundreds of, the most e

Linux was trapped at 1% again, and Apple's MacOSX market share was a record-Linux general technology-Linux technology and application information. The following is a detailed description. The share of Linux in the desktop has begun to decline again, and it is already less than 1%. Experts say that the share of Linux will continue to decline after Microsoft's new system is released. According to the operati

Hybrid programming in Apple system development (1): mutual calls between Objective-C and C ++, and mutual calls between flex and jsFirst, OC calls the C ++ code. Create an Objective-C Project and create the c ++ file MyCppFile. hpp and MyCppFile. cpp. Change the file name of the Cpp Code to the mm extension. The structure of the project code is as follows: Code for implementing C ++: MyCppFile. hpp MyCppF

installer is deleted for backup. The design logic of this software is to filter from the software. But Lion Server is not an angry bird. The installation process includes downloading the 4 GB Lion Operating System Client installer, plus hundreds of megabytes of server component programs. Depending on the installation type, such as upgrade or new installation, you must go to the Mac application software store again to obtain server components. For the

Install the Black Apple, take the lazy version to write to the disk partition, and then install1) from the hard disk divided into two areas, one is the future use of the target partition, one is the disk mirroring area2) because hfs+ supports logical partitioning, two partitions are placed on logical partitions and partitions are not formatted3) Use the hard drive Assistant to write the disk image CDR file to disk (my computer has problems, the partit

Recently, I switched to Apple for development. I began to collect apple's software and store some useful information in my blog, so that I can help others. I used to use win machine. I like Notepad ++ recommended by my colleagues. It is green and lightweight, but it has a powerful open-source text editor. After switching to Mac, I have been looking for alternative software. When I encounter textmate, I

Before the tutorial begins, we need to understand the two key keys to entering DFU-the power and home keys, which are located at the top of the iphone and below the screen, as shown below. Normal restoration of Law I. 1, turn your iphone off. 2, at the same time press and hold the switch machine keys and home keys. 3, when you see the white Apple