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What is the best way to use a HashMap in C++?
...e once to retrieve results (e.g., counting the number of unique words in a file) chances are that an std::map will be just as fast, and quite possibly even faster (but, again, the computational complexity is different, so that can also depend on the number of unique words in the file).
1 Where t...
How to replace strings containing slashes with sed?
I have a Visual Studio project, which is developed locally. Code files have to be deployed to a remote server. The only problem is URLsthey contain which are hard-coded.
...
Difference between android-support-v7-appcompat and android-support-v4
...adding,
com.android.support:appcompat-v7:21.0.+
dependency in your gradle file, imports the above-mentioned classes.
Bonus
Other support libraries
Multidex Support Library (For creating apps with more than 65k methods)
v17 Leanback support Library (A Support library which provides important widge...
What is the difference between linear regression and logistic regression?
...nature. For instance, yes/no, true/false, red/green/blue,
1st/2nd/3rd/4th, etc.
Linear regression is used when your response variable is continuous. For instance, weight, height, number of hours, etc.
Equation
Linear regression gives an equation which is of the form Y = mX + C,
means equation w...
How to Calculate Execution Time of a Code Snippet in C++
...indows and linux. */
uint64 GetTimeMs64()
{
#ifdef _WIN32
/* Windows */
FILETIME ft;
LARGE_INTEGER li;
/* Get the amount of 100 nano seconds intervals elapsed since January 1, 1601 (UTC) and copy it
* to a LARGE_INTEGER structure. */
GetSystemTimeAsFileTime(&ft);
li.LowPart = ft.dwLowD...
Ruby on Rails: Where to define global constants?
...nly if its inside a module, e.g. module Constants; COLOURS = ...; end in a file called models/constants.rb.
– Kelvin
Oct 9 '17 at 21:41
|
sh...
What is getattr() exactly and how do I use it?
...
>>> getattr(person, 'age')
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
AttributeError: 'Person' object has no attribute 'age'
But you can pass a default value as the third argument, which will be returned if such attribute does not exist:
>&g...
How to “crop” a rectangular image into a square with CSS?
...ed-images">
<li><img src="http://fredparke.com/sites/default/files/cat-portrait.jpg" /></li>
<li><img src="http://fredparke.com/sites/default/files/cat-landscape.jpg" /></li>
</ul>
CSS:
li {
width: 150px; // Or whatever you want.
height: 150px;...
Configuring Vim for C++
...e
Real time syntax checking: Syntastic
Switching between source and header file: A plugin
Snippets: Snipmate or UltiSnip
Search for reference of variables, functions, classes, etc.: Cscope
Go to definition: Ctags or part of YouCompleteMe subcommands mentioned above
Refactoring tools: Refactor, lh-re...
Populate a Razor Section From a Partial
... more elegant way to do this is to move partial view scripts into separate file and then render it in Scripts section of view:
<h2>This is the view</h2>
@Html.RenderPartial("_Partial")
@section Scripts
{
@Html.RenderPartial("_PartialScripts")
<script type="text/javascript"...