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How Do I Choose Between a Hash Table and a Trie (Prefix Tree)?
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What happens to a github student account's repositories at the end of 2 years?
...fter 30 days in an email, that's kind of a big deal. You should definitely include that in your answer--especially because referenceable sources are looked favorably upon in answers.
– Patrick
Jul 16 '18 at 4:44
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How do I match any character across multiple lines in a regular expression?
...<FooBar>/s
The s at the end causes the dot to match all characters including newlines.
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What is the difference between encrypting and signing in asymmetric encryption?
...om data, keep in it a database AND sign it with your key.
I would like to include my public key in my software to decrypt/read the signature of the key.
You'll probably need to purchase a certificate for your public key from a commercial provider like Verisign or Thawte, so that people may check t...
How to check an Android device is HDPI screen or MDPI screen?
... break;
}
EDIT Be aware that as Android evolves, other values should be included in the switch cases. As of this edit, this includes DisplayMetrics.DENSITY_TV and DisplayMetrics.DENSITY_XXHIGH. Consult the docs for the latest info; I'm not going to bother maintaining this answer.
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How to convert a byte array to a hex string in Java?
...n't this come up when you Google this kind of problem? Lots helpful tools, including String printHexBinary(byte[]) and byte[] parseHexBinary(String). printHexBinary is, however, much (2x) slower than the function in this answer. (I checked the source; it uses a stringBuilder. parseHexBinary uses an...
Best documentation for Boost:asio?
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Some nice documentation on boost including a chapter on asio can be found in a (free) boost book at http://en.highscore.de/cpp/boost/index.html. The chapter on asio provides a general overview and then goes as far as how to develop your own custom asio exten...
Linux编程中各种头文件 - C/C++ - 清泛网 - 专注C/C++及内核技术
...编写网络程序时，可以直接使用下面这段头文件代码
#include <unistd.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netdb.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <errno.h>
#include <malloc.h>
#include <netin...
Can I mix Swift with C++? Like the Objective-C .mm files
...t all C as input). When I say it's not quite C++, consider a C++ file that includes a variable named nil (which is legal C++) and then try to compile that as Objective-C++.
Swift doesn't have the same relationship. It is not a superset of C or C++, and you can't directly use either in a .swift file...