32 Bit Max Number

1. Given a, b two files, each store 5 billion URLs, each URL accounted for 64 bytes, memory limit is 4G, let you find a, b file common URL? Scenario 1: The size of each file can be estimated to be 50gx64=320g, far larger than the memory limit of 4G. So it is not possible to fully load it into memory processing. 　　Consider adopting a divide-and-conquer approach. s traverses file A, asks for each URL, and then stores the URL to 1000 small files (recorded) based on the values obtained. This ...

When the information to the momentum of the development of a large scale, digital office also held up the door to a small and medium-sized enterprises. Far-sighted SMEs clearly know the power of office automation and the network-not only can significantly improve efficiency, but also to establish a corporate image, and even to bring considerable economic benefits to the company. To this end, as a platform for information construction of the basic products-server, has been with the enterprise information construction step by step, and into various manufacturing enterprises. 　　As a result, the user requirements for the server become higher. Based on this, the following edit is ...

It companies around the world are working to virtualize and automate data centers in the hope of helping their business achieve higher value and lower costs, delivering new data-driven services faster and more efficiently. Intel (R) Xeon (TM) processor-based servers provide the foundation for this innovation. These servers account for the vast majority of all servers in the current virtualization center and cloud environment, and can support most of the most high-performance workstations. Performance improvement up to 35% Intel Xeon Processor e5-2600 ...

This article is the MongoDB Production notes section of the translation http://www.aliyun.com/zixun/aggregation/13461.html ">mongodb Manuel. This section focuses on the various considerations that affect performance and reliability in the production environment, and is worth the attention of workers who are deploying MongoDB. This article describes in detail the key system configurations that affect MongoDB, especially the production environment. The following are ...

A few days, in the management of the system encountered a strange problem, today have the opportunity to install the MySQL environment to reproduce the problem, because it is not the most primitive environment, so may not be able to fully reproduce, I can only try to reproduce the key The problem .. I think this issue is a bit special, so in this probably recall the scene under the circumstances .. Work, the implementation of a su & ndash; mysql command, encountered such an error .. view sourceprint? 1 [root @dbmain ~ ...

Mpxplay. EXE [options] to play/convert file name or file list playlist:-@ playlist:http://www.aliyun.com/zixun/aggregation/17223.html "> playlist file (such as M3u,mxu) -@d PLAYLIST: Point singing mode (put the list of files to play on the left, that is, put the song into the queue)-@s PLAYLIST. Playlists: Will ...

"Tenkine Server channel August 21 message" IBM System x3850 X5 (7143i20) is a rack server that employs the EX5 memory expansion technology developed by IBM. Recently, there are businesses to promote this product, currently only 42000 yuan. 　　Interested friends may wish to consider. Configuration, this server using 4U rack structure design, equipped with two Xeon e7-4820, the main frequency of 2GHz, eight cores 16 thread design, bus specifications for QPi 5.86gt/s, provide 7&tim ...

"Tenkine Server channel July 9 message" IBM System x3850 X5 (7143i20) is a very good performance of the server, mainly for large and medium-sized enterprises to launch the key business. This product uses the 4U chassis, the internal maximum support 4 processors, lets the server performance is very strong at present, this product only sells 42500 yuan, has the intention friend not to miss. Image: IBM System x3850 X5 (7143I20) Product configuration: IBM System ...

To tell you the truth, we developed the mobile end of the project, the entire team of people are the first time, the initial project for the choice of native app and web app also debated, and finally comprehensive consideration, we chose the web (we chose the H5) development. But from the characteristics of these two development models, from the date of their birth began the constant debate, which is good or bad, this article does not discuss, but simply listed under my development problems and the final solution. 1. Responsive Web Design Speaking of this, mobile development facing the screen size that is called a abundant ...

Recently, some businesses are on the server product model Thinkserver TS230 "Xeon Quad Core E3-1225v2 (3.2g-8m)/2g*2/500g*2 (non-hot) SATA RAID 0,1/dvd/single Gigabit NIC/2 disk/mouse/three years" launch promotions, Promotional price 6300 tax-included. 　　Suggested to the user may wish to pay more attention to. Thinkserver TS230 is designed for the growth of users of professional servers, along with the new product innovation and quality control, ...