bzoj3504: [Cqoi2014] dangerous bridge (maximum flow)

Title gate . Solution: As soon as I see this question. Shout out "don't you finish building the map and run the network flow?" Mr. Zhu came and patted me: if a1 flows to b2, the reverse will do.. conversely?? What the hell? emmmm well, then I gave up the treatment to decadent. I see the question again.. What ...

Posted by Axem on Tue, 31 Mar 2020 05:09:29 -0700

android foundation interface development considerations

When doing Android development, we must pay attention to that the main thread cannot change the UI interface. If there is a crash when the program is running, and if there is no obvious syntax error, please check whether there is a conflict or crash in your own process. If there is a connection with the background, that is, when the request is ...

Posted by josh_mcqueen on Mon, 30 Mar 2020 10:34:23 -0700

Java exception handling

1, Exception overview and exception architecture 1. Overview of exceptions In the process of using computer language for project development, even if the programmer writes the code perfectly, there are still some problems in the operation of the system, because many problems can not be avoided by the code, such as: the format of customer input ...

Posted by jeethau on Mon, 30 Mar 2020 01:43:32 -0700

Polar rabbit express bill No. query - polar rabbit Express

Preface After reading this article, copy the source code to your project, and you can quickly complete the docking of polar rabbit express interface. The effect of the interface displayed on the official website of polar rabbit express is more suitable for novices, Call the polar rabbit Express query API interface of the express bird to query ...

Posted by dk4210 on Mon, 30 Mar 2020 00:16:37 -0700

Python3 Standard Library: Managing concurrent operations in threading processes

1. Manage concurrent operations in threading processes The threading module provides an API to manage the execution of multiple threads, allowing programs to run multiple operations concurrently in the same process space. 1.1 Thread object The easiest way to use Thread is to instantiate a Thread object with a target function and call start() to ...

Posted by j.smith1981 on Sun, 29 Mar 2020 18:54:15 -0700

Install traefik ingress in Kubernetes

#Download Configuration List wget https://github.com/containous/traefik/tree/v1.7/examples/k8s #There are three files in the link that start with traefik-and you can see their names, of which traefik-deployment.yaml is not used here # traefik-deployment.yaml is either traefik-ds.yaml or traefik-ds.yaml, which is recommended because the conf ...

Posted by mj_23 on Sun, 29 Mar 2020 09:50:42 -0700

LeetCode 820. Word compression

My LeetCode: https://leetcode-cn.com/u/ituring/ My LeetCode source code [GitHub]: https://github.com/izhoujie/Algorithmcii LeetCode 820. Word compression subject Given A list of words, we encode this list into an index string S and an index list A. For example, if the list is ["time", "me", "bell"], we can expres ...

Posted by bettydailey on Sun, 29 Mar 2020 08:11:11 -0700

Making games with createJS

Using createJS to make web games I. directory 1. Introduction to createJS 2. Case design 2, Introduction to createJS 1. What is createJS? CreateJS is the CreateJS library, which is an engine developed for HTML5 games. CreateJS is a set of open-source toolkit that can build rich interactive experience of HTML5 games. It aims to reduce the develo ...

Posted by TheNookie on Sun, 29 Mar 2020 07:58:10 -0700

Formal Learning linux-16

1. E-mail system Mail User Agent (MUA): A server that receives and receives mail for users; Mail Delivery Agent (MDA): Mail can be saved for users when they are offline; Mail Transfer Agent (MTA): Forward and process messages between different e-mail service providers. In deploying an e-mail system, the outgoing service is based on the post ...

Posted by shure2 on Fri, 27 Mar 2020 19:59:31 -0700

Python 3 standard library: zlib GNUzlib compression

1. zlib GNUzlib compression Zlib module provides the underlying interface for many functions in the zlib compression library of GNU Project. 1.1 processing data in memory The simplest way to use zlib requires that all data to be compressed or decompressed be stored in memory. import zlib import binascii original_data = b'This is the original ...

Posted by zippers24 on Fri, 27 Mar 2020 10:20:54 -0700