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What is better, adjacency lists or adjacency matrices for graph problems in C++?
... slow to add/delete a node; a complex operation O(n^2)
It is fast to add a new edge O(1)
Adjacency List
Memory usage depends on the number of edges (not number of nodes),
which might save a lot of memory if the adjacency matrix is sparse
Finding the presence or absence of specific edge between...
Passing a Bundle on startActivity()?
... have a few options:
1) Use the Bundle from the Intent:
Intent mIntent = new Intent(this, Example.class);
Bundle extras = mIntent.getExtras();
extras.putString(key, value);
2) Create a new Bundle
Intent mIntent = new Intent(this, Example.class);
Bundle mBundle = new Bundle();
mBundle.putStrin...
Programmatically set left drawable in a TextView
...
@BrainCrash You're right, I mistook it with the newer method which has the same name.
– deathemperor
Jan 9 '14 at 12:05
2
...
How to extract the year from a Python datetime object?
... now.timetz now.utcoffset
now.__getattribute__ now.__new__ now.__str__ now.dst now.max now.resolution now.today now.utctimetuple
and you'll see that now.year is a member of the "now" object.
...
Removing viewcontrollers from navigation stack
...ntroller?.viewControllers array and using setViewControllers to assign the new array. I've also checked for zombies or reference cycles, it's safe.
– OhadM
Nov 4 '18 at 12:40
...
Adjust UILabel height to text
...
I am a little hesitant to create a new UILabel per sizing; if this method is used inside layoutSubviews with the tendency to be invoked multiple times per complete layout, the extra object creation may introduce noticeable delays, especially during scrolling.
...
How can you customize the numbers in an ordered list?
...t;html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title> new document </title>
<style type="text/css">
<!--
ol {
counter-reset: item;
margin-left: 0;
padding-left: 0;
}
li {
margin-bottom: .5em;
}
li:before {
display: inline-block;
content: counter(item, ...
Jenkins Host key verification failed
...it HEAD
You will get the standard SSH warning when first connecting to a new host via SSH:
The authenticity of host 'bitbucket.org (207.223.240.181)' can't be established.
RSA key fingerprint is 97:8c:1b:f2:6f:14:6b:5c:3b:ec:aa:46:46:74:7c:40.
Are you sure you want to continue connecting (yes/no)...
Are custom elements valid HTML5?
...means to register custom elements in a formal manner.
Custom elements are new types of DOM elements that can be defined by
authors. Unlike decorators, which are stateless and ephemeral, custom
elements can encapsulate state and provide script interfaces.
Custom elements is a part of a larger W3 sp...
Shiro vs. SpringSecurity [closed]
...either are as simple and intuitive as Shiro's solution:
ByteSource salt = new SecureRandomNumberGenerator().nextBytes();
new Sha512Hash(password, salt).toBase64();
No need for commons-codec or anything else. Just the Shiro jar.
Now with regards to Spring environments, most of the Shiro develope...