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Algorithm to find Largest prime factor of a number
...e you've decided on how to split a number into two factors, here is the fastest algorithm I can think of to find the largest prime factor of a number:
Create a priority queue which initially stores the number itself. Each iteration, you remove the highest number from the queue, and attempt to split...
Creating an R dataframe row-by-row
...data.table seems to be even faster than pre-allocation using data.frames. Testing here: stackoverflow.com/a/11486400/636656
– Ari B. Friedman
Jul 15 '12 at 2:02
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使用App Inventor扩展实现多点触控：Rotation Detector · App Inventor 2 中文网
...ionDetector.aix extension as described in part 2 below using the extension test send (2) may need to be rebuilt as the system evolves.
Contents
rver.
Keep in mind that the extensions mechanism is still unstable and under development. Any aia files you build in steps (1) a
Using App Inventor ex...
Serialize an object to string
...
Codewise, this is the shortest example I've seen. +1
– froggythefrog
Aug 31 '13 at 22:00
13
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Spring Boot + JPA : Column name annotation ignored
...ou could always just specify your column name in lowercase:
@Column(name="testname")
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.NET List Concat vs AddRange
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I've done a test comparing Concat and AddRange with a List<KeyValuePair<string, string>> with 1000 elements, concatenated/added 100 times, and AddRange was extremely faster. The results were these: AddRange 13 ms, Concat().To...
How to timeout a thread
...rent.TimeUnit;
import java.util.concurrent.TimeoutException;
public class Test {
public static void main(String[] args) throws Exception {
ExecutorService executor = Executors.newSingleThreadExecutor();
Future<String> future = executor.submit(new Task());
try {
...
Cookie blocked/not saved in IFRAME in Internet Explorer
... Another info that can help someone with a similar problem: from my tests if domains are in different security zones (for example first-party is internet and third-party is intranet) it is not possible to accept third party cookie also if P3P is correctly configured. The cookie is always bloc...
Best way to obfuscate an e-mail address on a website?
...S to change the direction of your text works pretty well. That link has a test of a bunch of other obfuscation methods as well.
Whatever you use is inevitably going to be defeated. Your primary aim should be to avoid annoying the heck out of your users.
...
Using an HTML button to call a JavaScript function
...entById support:
if (document.getElementById) { // NB: no brackets; we're testing for existence of the method, not executing it
// do stuff...
}
You probably want to validate your input as well; something like
var vesdiameter = parseFloat(document.getElementById("VesDiameter").value);
if (is...