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How many random elements before MD5 produces collisions?
... quintillion 374 quadrillion 607 trillion 431 billion 768 million 211 thousand 456.
However if you keep all the hashes then the probability is a bit higher thanks to birthday paradox. To have a 50% chance of any hash colliding with any other hash you need 264 hashes. This means that to get a collis...
Is it possible to use Java 8 for Android development?
Searching the web, it is not clear if Java 8 is supported for Android development or not.
26 Answers
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How to use “raise” keyword in Python [duplicate]
...ve read the official definition of "raise", but I still don't quite understand what it does.
6 Answers
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What does it mean for a data structure to be “intrusive”?
I've seen the term intrusive used to describe data structures like lists and stacks, but what does it mean?
2 Answers
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How do I check the difference, in seconds, between two dates?
...ant to record when they were created, check against the current timestamp, and refresh as necessary.
5 Answers
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how to delete all cookies of my website in php
...ferent domain settings. One of them will make it into the $_COOKIE array, and the other won't. But they will both be visible in HTTP_COOKIE. If you want to clean this situation up, this is the way to do it.
– dlo
Jun 10 '15 at 13:08
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How to convert string to boolean php
...ue'? true: false;
EDIT: the above code is intended for clarity of understanding. In actual use the following code may be more appropriate:
$test_mode_mail = ($string === 'true');
or maybe use of the filter_var function may cover more boolean values:
filter_var($string, FILTER_VALIDATE_BOOLEA...
Use of undeclared identifier 'kUTTypeMovie'
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You have to add the framework MobileCoreServices to the project, and then import it:
Objective C:
#import <MobileCoreServices/MobileCoreServices.h>
That will make the problem go away.
Swift 4:
import MobileCoreServices
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Post an empty body to REST API via HttpClient
... POST but with an empty body. I'm new to using the WCF Web API HttpClient and I can't seem to find out the write code that would do a post with an empty body. I find references to some HttpContent.CreateEmpty() method, but I don't think that is for the Web API HttpClient code since I can't seem to...
How to compare versions in Ruby?
How to write a piece of code to compare some versions strings and get the newest?
8 Answers
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