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How to avoid reverse engineering of an APK file?
...erver and device.
When storing values on the device, don't store them in a raw format. For example, if you have a game, and you're storing the amount of in game currency the user has in SharedPreferences. Let's assume it's 10000 coins. Instead of saving 10000 directly, save it using an algorithm lik...
Using Linq to get the last N elements of a collection?
...by an order of magnitude. If the IEnumerable is calculated (via Enumerable.Range, e.g.), James's solution takes longer. I can't think of any way to guarantee a single pass without either knowing something about the implementation or copying values to a different data structure.
...
Select 50 items from list at random to write to file
...ce is a possible
selection in the sample.
To choose a sample in a range of integers, use xrange as an argument.
This is especially fast and space efficient for sampling from a
large population: sample(xrange(10000000), 60)
...
Android and setting width and height programmatically in dp units
...Retrieve a dimensional for a particular resource ID for use as a size
in raw pixels. This is the same as getDimension(int), except the
returned value is converted to integer pixels for use as a size. A
size conversion involves rounding the base value, and ensuring that a
non-zero base value ...
Find (and kill) process locking port 3000 on Mac
...
Another tip is to add -P to the lsof command so that the raw port is visible in the output: lsof -P -i:3000
– Jason Axelson
Jul 22 '16 at 2:06
...
Input size vs width
...RUxkBbV-q561I6kFtXRa8TVwTICgirnJhmVJw.woff2) format('woff2');
unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02C6, U+02DA, U+02DC, U+2000-206F, U+2074, U+20AC, U+2212, U+2215;
}
@font-face {
font-family: 'Open Sans Condensed';
font-style: normal;
font-weight: 300;
src:...
Why can I pass 1 as a short, but not the int variable i?
...int, or ulong, provided the value of the constant-expression is within the range of the destination type.
A constant-expression of type long can be converted to type ulong, provided the value of the constant-expression is not negative.
(Quoted from C# Language Specification Version 3.0)
...
Minimizing NExpectation for a custom distribution in Mathematica
...df[x] looks like
Plot[pdf2[3.77, 1.34, -2.65, 0.40, x]*x, {x, 0, .3}, PlotRange -> All]
and the expected value is
NIntegrate[pdf2[3.77, 1.34, -2.65, 0.40, x]*x, {x, 0, \[Infinity]}]
Out= 0.0596504
But since you want the expected value between a start and +inf we need to integrate in this ...
Iteration over std::vector: unsigned vs signed index variable
...on't know. That will ensure your code runs as generic as possible.
Using Range C++11
for(auto const& value: a) {
/* std::cout << value; ... */
Using indices
for(std::vector<int>::size_type i = 0; i != v.size(); i++) {
/* std::cout << v[i]; ... */
}
Using arra...
Map and Reduce in .NET
... already has it albeit under different names.
Map is Select:
Enumerable.Range(1, 10).Select(x => x + 2);
Reduce is Aggregate:
Enumerable.Range(1, 10).Aggregate(0, (acc, x) => acc + x);
Filter is Where:
Enumerable.Range(1, 10).Where(x => x % 2 == 0);
https://www.justinshield.com/20...