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To be a good program ape, not only must have a certain talent, often communicate with the great God, their own practice is the right way. Here are some Quora users recommend foreign sites, with the vast number of programs ape or want to learn programming friends to share: 1) programming exercises and contests class http://www.codechef.com/ http://www.spoj.com/p//http programmingpraxis.com/ Http://projec

The block chain can be understood as a distributed database, read data, and store data. Features are: durability, robustness, transparency, not destructive. At this time there are alumni asked: "Teacher, other people said that the block chain is a distributed ledger, there is an incentive mechanism, can be dug to get rewards, how different." ", the question is ve

What is the relationship between the keyboard and the application processing program? -- Linux general technology-Linux programming and kernel information. The following is a detailed description. Now you have written a keyboard driver, and you need to create a keyboard handler at the application layer. I don't know h

I recently made an iPhoneProgram, You need to use the database, so you are too lazy to learn core data, so you simply use the SQLite database. I used Lita (http://www.dehats.com/drupal? Q = node/58) Create a database, and then use nsfilemanager to copy the database in the project to the document directory in the program sandbox on the device, the database in the sandbox is different from the size of my or

XP does not have a horn icon prompts "because the volume control program is not installed" what to do as follows: 1, the most likely reason: The system lost sndvol32.exe file, file path c:windowssystem32, can upload a sndvol32.exe in another machine, or find a system CD to find sndvol32.ex_ files copied to System32, Rename to Sndvol32.exe. or search the Web t

Php method, from the Internet to download a website program, this method did not understand what is doing, ask for advice function seo ($ident) { Include App_path. " /plus/seo.cache.php "; $seo = $seo [$ident]; if (Is_array ($seo)) { foreach ($seo as $k = = $v) { if ($v [affiliation]!= "") { [Email protected] (",", $v [' affiliation ']); if ($_session[did]!= ""

b/S structure b/s structure, that is, Browser/server (browser/server) structure, Web application, that is, the program running in the browser for the Web application. Programs that run in a browser are BS-structured programs. BS application does not need to have its files locally. Just use the browser to enter the ULR address. client/server or client/server mod