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How do I use arrays in C++?
...ointer assignment makes sense), array-to-pointer decay kicks in as usual.
Ranges
An array of type T[n] has n elements, indexed from 0 to n-1; there is no element n. And yet, to support half-open ranges (where the beginning is inclusive and the end is exclusive), C++ allows the computation of a poi...
Convert an image (selected by path) to base64 string
...ng (MemoryStream m = new MemoryStream())
{
image.Save(m, image.RawFormat);
byte[] imageBytes = m.ToArray();
// Convert byte[] to Base64 String
string base64String = Convert.ToBase64String(imageBytes);
return base64String;
}
}
...
How to calculate moving average using NumPy?
...[n:] = ret[n:] - ret[:-n]
return ret[n - 1:] / n
>>> a = np.arange(20)
>>> moving_average(a)
array([ 1., 2., 3., 4., 5., 6., 7., 8., 9., 10., 11.,
12., 13., 14., 15., 16., 17., 18.])
>>> moving_average(a, n=4)
array([ 1.5, 2.5, 3....
Write a program to find 100 largest numbers out of an array of 1 billion numbers
...lgorithms.
The description is quite general so maybe you can ask him the range or meaning of these numbers to make the problem clear. Doing this may impress an interviewer. If, for example, these numbers stands for people's age of within a country (e.g. China),then it's a much easier problem. With...
Case in Select Statement
...1765.aspx
USE AdventureWorks2012;
GO
SELECT ProductNumber, Name, "Price Range" =
CASE
WHEN ListPrice = 0 THEN 'Mfg item - not for resale'
WHEN ListPrice < 50 THEN 'Under $50'
WHEN ListPrice >= 50 and ListPrice < 250 THEN 'Under $250'
WHEN ListPrice >= 250 and ...
Creating Threads in python
...rt Thread
from time import sleep
def threaded_function(arg):
for i in range(arg):
print("running")
sleep(1)
if __name__ == "__main__":
thread = Thread(target = threaded_function, args = (10, ))
thread.start()
thread.join()
print("thread finished...exiting")
H...
How to display line numbers in 'less' (GNU)
...
The options are: R = better handling of raw color codes in files. S = Scroll long lines off the screen instead of word wrap. #3 = scroll right/left by 3 positions at a time. N = show line numbers. M = Longer prompts. ~ = Instead of displaying empty space after a f...
Increase number of axis ticks
...different scales of numbers, i.e., 0.5 is a good value for this data which range is c(-3,3), but it's not a good range for a data which range is c(0,5000). Is there some function that calculates it?
– João Daniel
Jul 4 '12 at 22:33
...
How to check if a string starts with one of several prefixes?
...rse there is; matching via regular expressions is much more expensive than raw string method calls. Exact figures I cannot give, but this is the general consensus.
– klaar
Mar 21 '16 at 15:47
...
Get the Query Executed in Laravel 3/4
How can I retrieve the raw executed SQL query in Laravel 3/4 using Laravel Query Builder or Eloquent ORM?
20 Answers
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